WEBNF Westpac Banking Corp Ltd (PK)

ASX Release 19 August 2024 Pillar 3 Report as at 30 June 2024 Westpac Banking Corporation (“Westpac”) today provides the attached Pillar 3 Report (June 2024). For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised for release by Tim Hartin, Company Secretary. Level 18, 275 Kent Street Sydney, NSW, 2000

JUNE 2024 INCORPORATING THE REQUIREMENTS OF APS 330 WESTPAC BANKING CORPORATION ABN 33 007 457 141 Pillar 3 Report

Table of contents Acknowledgment of Indigenous Peoples Westpac acknowledges the First Peoples of Australia and recognises their ongoing role as Traditional Owners of the land and waters of this country, and we pay respect to Elders past and present. We extend that respect to Westpac’s Aboriginal and Torres Strait Islander employees, partners and stakeholders, and to the Indigenous Peoples in the other locations where we operate. In Aotearoa (New Zealand) we also acknowledge tangata whenua and the unique relationship that Indigenous Peoples share with all New Zealanders as partners and custodians of their natural ecosystems under Te Tiriti o Waitangi. 2 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT Structure of Pillar 3 Report PILLAR 3 REPORT 3 Executive Summary 4 Introduction 6 Group Structure 7 Capital Overview 9 Leverage Ratio 12 Credit Risk Exposures 13 Securitisation 19 Liquidity Coverage Ratio 22 APPENDICES 23 Appendix I – APS 330 quantitative requirements 24 Appendix II – Exchange rates 25 GLOSSARY 26 DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 29 In this report references to ‘Westpac’, ‘Westpac Group’, ‘the Group’, ‘we’, ‘us’ and ‘our’ are to Westpac Banking Corporation and its controlled entities (unless the context indicates otherwise). In this report, unless otherwise stated or the context otherwise requires, references to ‘$’, ‘AUD’ or ‘A$’ are to Australian dollars. References to ‘US$’, ‘USD’ or ‘US dollars’ are to United States dollars, references to ‘NZ$’, ‘NZD’ or ‘NZ dollars’ are to New Zealand dollars, references to 'GBP' are to British Pound Sterling and references to 'EUR' are to European Euro. Refer to Appendix II for information regarding the rates of exchange between the Australian dollar and other currencies applied by the Group as part of its operating activities as at 30 June 2024, 31 March 2024 and 30 June 2023. Any discrepancies between totals and sums of components in tables contained in this report are due to rounding. In this report, unless otherwise stated, disclosures reflect the Australian Prudential Regulation Authority’s (APRA) implementation of Basel III. Information contained in or accessible through the websites mentioned in this report does not form part of this report unless we specifically state that it is incorporated by reference and forms part of this report. All references in this report to websites are inactive textual references and are for information only. Westpac Banking Corporation ABN 33 007 457 141

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 3 PILLAR 3 REPORT EXECUTIVE SUMMARY INTRODUCTION GROUP STRUCTURE CAPITAL OVERVIEW LEVERAGE RATIO CREDIT RISK EXPOSURES SECURITISATION LIQUIDITY COVERAGE RATIO

4 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT EXECUTIVE SUMMARY Key capital ratios 30 June 31 March 30 June % 2024 2024 2023 Level 2 regulatory capital structure Common equity Tier 1 (CET1) capital ratio 11.96 12.55 11.86 Additional Tier 1 capital ratio 2.41 2.46 2.16 Tier 1 capital ratio 14.37 15.01 14.02 Tier 2 capital ratio 6.50 6.42 5.69 Total regulatory capital ratio 20.87 21.43 19.71 APRA leverage ratio 5.38 5.49 5.36 Level 1 regulatory capital structure Level 1 CET1 capital ratio 12.07 12.80 12.01 Third Quarter 2024 – First Half 2024 Westpac’s Level 2 CET1 capital ratio was 11.96% at 30 June 2024, 59 basis points (bps) lower than 31 March 2024. The decrease was primarily due to payment of the 2024 interim dividend (58 bps), return of capital to shareholders by way of a special dividend and on market share buyback (16 bps) and an increase in total Risk Weighted Assets (RWA) (21 bps). These impacts were partly offset by the contribution of net profit after tax earned in the quarter (39 bps). Third Quarter 2024 – Third Quarter 2023 Westpac’s Level 2 CET1 capital ratio at 30 June 2024 was 10 bps higher than 30 June 2023 with higher net profit after tax (143 bps) and lower total RWA (21 bps) partly offset by ordinary dividend payments (114 bps) and the return of capital to shareholders (35 bps). Total RWA reduced by $8.3 billion or 1.8%, mainly due to the lower embedded loss within IRRBB RWA and lower market risk RWA. Risk Weighted Assets 30 June 31 March 30 June $m 2024 2024 2023 Risk weighted assets at Level 2 Credit risk 343,555 339,741 342,766 Market risk 11,895 11,251 14,561 Operational risk 54,609 54,934 55,362 Interest rate risk in the banking book (IRRBB) 36,486 33,599 42,635 Other 5,177 4,892 4,692 Total RWA 451,722 444,417 460,016 Total Exposure at Default 1,170,090 1,177,971 1,191,704 Total RWA increased by 1.6% to $451.7 billion during the quarter due to increases in both credit and non-credit RWA. Credit RWA increased by $3.8 billion. Key movements included: • A $3.5 billion increase from higher lending, primarily in Property Finance and Business Lending; • A $1.9 billion increase due to deterioration in credit metrics, mainly from an increase in Residential Mortgage delinquencies; • A $0.7 billion decrease from data refinements mainly in Residential Mortgages and Large Corporate; • A $0.5 billion decrease from counterparty credit risk and mark-to-market related credit risk; and • A $0.4 billion decrease from foreign currency translation impacts, predominantly the appreciation of the A$ against the NZ$ and US$. Non-credit RWA increased by $3.5 billion. Key movements included: • IRRBB RWA: $2.9 billion increase, mainly driven by: – Increase of $1.5 billion from a higher regulatory embedded loss due to higher interest rates; and – Increase of $1.1 billion in repricing and yield curve risk in line with underlying banking book positions. • Market RWA: $0.6 billion increase due to greater market risk exposures increasing Stressed Value at Risk (VaR). The impact of which was partly offset by reduced market volatility in the one-year historical VaR window as market events rolled out of the observation period; and • Operational RWA: $0.3 billion decrease due to roll-off of indemnities provided as part of the exit of non-core businesses.

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 5 Exposure at Default (EAD) EAD decreased by $7.9 billion over the quarter. Key movements included: • A $20.7 billion decrease in Sovereign exposures, mainly driven by a reduction in funds placed with central banks as Term Funding Facility (TFF) drawdowns matured, partly offset by higher government bond holdings; • A $14.9 billion increase from higher lending, mainly in Residential Mortgages, Property Finance and Business Lending; • A $1.7 billion decrease from foreign currency translation impacts; and • A $0.3 billion decrease in derivative exposures. Tier 2 capital movement for third quarter 2024 The Group issued $1.25 billion of Tier 2 capital instruments over the quarter. The impact of these transactions was an increase in the Total regulatory capital ratio of approximately 28 bps. There were no Tier 2 capital instruments redeemed. D-SIBs, including Westpac, have a total capital requirement of 18.25% from 1 January 2026. Leverage ratio The leverage ratio represents the amount of Tier 1 capital relative to exposure1 .. At 30 June 2024, Westpac’s leverage ratio was 5.38%, down 11 bps from 31 March 2024. The ratio remains well above APRA's regulatory minimum requirement of 3.5%. The decrease in the leverage ratio from 31 March 2024 is due to lower Net Tier 1 Regulatory Capital of $1.8 billion partly offset by a reduction in Total Exposures of $7.8 billion. Liquidity Coverage Ratio (LCR) Westpac’s average LCR for the quarter ended 30 June 2024 was 130% (31 March 2024: 132%), well above the regulatory minimum of 100%. The decrease in the ratio was mainly due to lower average liquid assets. 1. As defined under Attachment D of APS 110: Capital Adequacy.

6 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT INTRODUCTION Westpac Banking Corporation is an Authorised Deposit-taking Institution (ADI) subject to regulation by APRA. APRA has accredited Westpac to apply advanced models permitted by the Basel III global capital adequacy regime to the measurement of its regulatory capital requirements. Westpac uses the Advanced Internal Ratings-Based approach (Advanced IRB) for credit risk and the Standardised Measurement Approach (SMA) for operational risk. In accordance with APS 330 Public Disclosure, financial institutions that have received the Advanced IRB accreditation, such as Westpac, are required to disclose prudential information about their risk management practices on a semi-annual basis. A subset of this information must be disclosed quarterly. In addition to this report, the regulatory disclosures section of the Westpac website1 contains the reporting requirements for: • Capital instruments under Attachment B of APS 330; and • The identification of potential Global-Systemically Important Banks (G-SIB) under Attachment H of APS 330 (disclosed annually). Capital instruments disclosures are updated when: • A new capital instrument is issued that will form part of regulatory capital; or • A capital instrument is redeemed, converted into CET1 capital, written off, or its terms and conditions are changed. 1. http://www.westpac.com.au/about-westpac/investor-centre/financial-information/regulatory-disclosures/

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 7 GROUP STRUCTURE APRA applies a tiered approach to measuring Westpac’s capital adequacy1 by assessing financial strength at three levels: • Level 1, comprising Westpac Banking Corporation and its subsidiary entities that have been approved by APRA as being part of a single ‘Extended Licensed Entity’ (ELE) for the purposes of measuring capital adequacy; • Level 2, the consolidation of Westpac Banking Corporation and all its subsidiary entities except those entities specifically excluded by APRA regulations. The head of the Level 2 group is Westpac Banking Corporation; and • Level 3, the consolidation of Westpac Banking Corporation and all its subsidiary entities. Unless otherwise specified, all quantitative disclosures in this report refer to the prudential assessment of Westpac’s financial strength on a Level 2 basis2 .. The Westpac Group The following diagram shows the Level 3 conglomerate group and illustrates the different tiers of regulatory consolidation. Westpac Banking Corporation Offshore Branches and Extended Licensed Entities Westpac New Zealand Limited Other Banking & Financial Entities Insurance, Funds Management, Non-Financial, Special Purpose Entities Level 3 Level 2 Level 1 Accounting consolidation3 The consolidated financial statements incorporate the assets and liabilities of all entities (including structured entities) controlled by Westpac. Westpac and its subsidiaries are referred to collectively as the ‘Group’. The effects of all transactions between entities in the Group are eliminated on consolidation. Control exists when the parent entity is exposed to, or has rights to, variable returns from its involvement with an entity, and has the ability to affect those returns through its power over that entity. Subsidiaries are fully consolidated from the date on which control commences and they are no longer consolidated from the date that control ceases. Group entities excluded from the regulatory consolidation at Level 2 Regulatory consolidation at Level 2 includes the global operations of Westpac and its subsidiary entities, including other controlled banking, securities and financial entities, except for those entities involved in the following business activities: • insurance; • acting as manager, responsible entity, approved trustee, trustee or similar role in relation to funds management; • non-financial (commercial) operations; or • special purpose entities to which assets have been transferred in accordance with the requirements of APS 120 Securitisation. Retained earnings and equity investments in subsidiary entities excluded from the consolidation at Level 2 are deducted from capital, with the exception of securitisation special purpose entities. 1. APS 110 Capital Adequacy outlines the overall framework adopted by APRA for the purpose of assessing the capital adequacy of an ADI. 2. Impaired assets and provisions held in Level 3 entities are excluded from the tables in this report. 3. Refer to Note 29 of Westpac’s 2023 Annual Report for further details.

8 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT GROUP STRUCTURE Subsidiary banking entities Westpac New Zealand Limited (WNZL), a wholly owned subsidiary entity, is a registered bank incorporated in New Zealand and regulated by, among others, the Reserve Bank of New Zealand (RBNZ) for prudential purposes. WNZL uses both the Advanced IRB and Standardised methodologies for credit risk, and the SMA for operational risk. Other subsidiary banking entities in the Group include Westpac Bank PNG Limited and Westpac Europe GMBH. For the purposes of determining Westpac’s capital adequacy, subsidiary banking entities are consolidated at Level 2. Branch operations Westpac is one of Australia's leading providers of banking and selected financial services, operating predominantly in Australia and New Zealand, with limited operations in Europe, North America and Asia. Westpac operates through a significant online capability supported by an extensive branch and ATM network, call centres and specialist relationship and product managers. Restrictions and major impediments on the transfer of funds or regulatory capital within the Group Certain subsidiary banking and trustee entities are subject to local prudential regulation in their own right, including capital adequacy requirements and investment or intra-group exposure limits. Westpac seeks to ensure that its subsidiary entities are adequately capitalised and adhere to regulatory requirements at all times. Dividends and capital are repatriated in line with the Group’s policy subject to subsidiary Board approval and local regulations. Minimum capital (‘thin capitalisation’) rules Tax legislation in most jurisdictions in which the Group operates prescribes minimum levels of capital that must be retained in that jurisdiction to avoid a portion of the interest costs incurred in the jurisdiction ceasing to be tax deductible. Capital for these purposes includes both contributed capital and non-distributed retained earnings. Westpac seeks to maintain sufficient capital/retained earnings in these entities to comply with these rules. Tax costs associated with repatriation Repatriation of retained earnings (and capital) may result in tax being payable in either the jurisdiction from which the repatriation occurs or Australia on receipt of the relevant amounts. This cost would reduce the amount actually repatriated. Intra-group exposure limits Exposures to related entities are managed within the prudential limits prescribed by APRA in APS 222 Associations with Related Entities1 .. Westpac has an internal limit structure and approval process governing credit exposures to related entities. This limit structure and approval process, combined with APRA’s prudential limits, is designed to reduce the potential for unacceptable contagion risk. RBNZ capital review2 The RBNZ capital adequacy framework became effective from 1 July 2022. The reforms are being phased in from 1 October 2021, with changes yet to be fully implemented including: • WNZL Tier 1 capital requirement will increase to 16% of RWA by 1 July 2028, of which 13.5% must be CET1 and up to 2.5% may be AT1; • WNZL’s total capital requirement will increase to 18% of RWA by 1 July 2028, of which up to 2% can be Tier 2 capital; and • Eligible Tier 1 capital will comprise common equity and redeemable perpetual preference shares. Existing AT1 capital instruments will be phased out by 1 July 2028. 1. For the purposes of APS 222, subsidiaries controlled by Westpac, other than subsidiaries that form part of the ELE, represent ‘related entities’. Prudential and internal limits apply to intra-group exposures between the ELE and related entities, both on an individual and aggregate basis. 2. WNZL’s references to CET1, AT1 and other capital measures may not align with the Australian definition in the Glossary as they are subject to RBNZ’s requirements.

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 9 CAPITAL OVERVIEW Capital management strategy Westpac's capital management strategy is reviewed on an ongoing basis and annually through an Internal Capital Adequacy Assessment Process (ICAAP). Key considerations include: • Regulatory capital minimums together with the capital conservation buffer (CCB) and countercyclical capital buffer are the Total CET1 Requirement. The Total CET1 Requirement for D-SIBs, including Westpac, is at least 10.25%1 ; • Strategy, business mix and operations and contingency plans; • Perspectives of external stakeholders including rating agencies as well as equity and debt investors; and • A stress testing framework that tests our resilience under a range of adverse economic scenarios. The Board has determined that Westpac will target a CET1 operating capital range of between 11.0% and 11.5%, in normal operating conditions. Westpac’s capital adequacy ratios 30 June 31 March 30 June % 2024 2024 2023 The Westpac Group at Level 2 CET1 capital ratio 11.96 12.55 11.86 Additional Tier 1 capital ratio 2.41 2.46 2.16 Tier 1 capital ratio 14.37 15.01 14.02 Tier 2 capital ratio 6.50 6.42 5.69 Total regulatory capital ratio 20.87 21.43 19.71 The Westpac Group at Level 1 CET1 capital ratio 12.07 12.80 12.01 Additional Tier 1 capital ratio 2.64 2.68 2.35 Tier 1 capital ratio 14.71 15.48 14.36 Tier 2 capital ratio 7.16 7.11 6.22 Total regulatory capital ratio 21.87 22.59 20.58 Westpac New Zealand Limited’s capital adequacy ratios 30 June 31 March 30 June % 2024 2024 2023 Westpac New Zealand Limited CET1 capital ratio 11.77 11.37 11.31 Additional Tier 1 capital ratio 2.14 2.14 1.64 Tier 1 capital ratio 13.91 13.51 12.95 Tier 2 capital ratio 1.71 1.72 0.95 Total regulatory capital ratio 15.62 15.23 13.90 Westpac New Zealand capital ratios are reported in accordance with RBNZ requirements. 1. Noting that APRA may apply higher CET1 requirements for an individual ADI.

10 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT CAPITAL OVERVIEW This table shows risk weighted assets for each risk type included in the regulatory assessment of Westpac’s capital adequacy. $m IRB Approacha FIRB Approachb Standardised Approachc Total Risk Weighted Assets 30 June 2024 Credit risk Corporate 25,608 - 1,312 26,920 Business Lending 24,774 - 228 25,002 Property Finance 31,041 - - 31,041 Large Corporate - 20,753 - 20,753 Sovereign - 1,991 1,637 3,628 Financial Institutions - 12,871 79 12,950 Residential Mortgages 117,554 - 16,199 133,753 Australian Credit Cards 3,692 - - 3,692 Other Retail 4,151 - 418 4,569 Small Business 17,282 - 119 17,401 Specialised Lending 3,568 - 440 4,008 Securitisation 7,443 - - 7,443 New Zealand 44,530 - 2,279 46,809 Credit valuation adjustment - - 5,586 5,586 Total Credit risk 279,643 35,615 28,297 343,555 Market risk 11,895 Operational risk 54,609 Interest rate risk in the banking book 36,486 Otherd 5,177 Total 451,722 a. IRB approaches excluding Foundation IRB (FIRB). b. Under FIRB, an ADI must provide its own estimates of probability of default (PD) and maturity and rely on supervisory estimates of loss given default (LGD) and EAD. c. Westpac’s standardised risk weighted assets are categorised based on their equivalent IRB categories. d. Other assets include cash items, unsettled transactions, fixed assets and other non-interest earning assets.

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 11 $m IRB Approacha FIRB Approachb Standardised Approachc Total Risk Weighted Assets 31 March 2024 Credit risk Corporate 25,269 - 1,230 26,499 Business Lending 23,426 - 229 23,655 Property Finance 30,386 - - 30,386 Large Corporate - 20,558 - 20,558 Sovereign - 1,919 1,604 3,523 Financial Institutions - 13,088 73 13,161 Residential Mortgages 115,918 - 16,786 132,704 Australian Credit Cards 3,789 - - 3,789 Other Retail 4,259 - 424 4,683 Small Business 17,378 - 118 17,496 Specialised Lending 3,276 - 457 3,733 Securitisation 7,317 - - 7,317 New Zealand 44,184 - 2,306 46,490 Credit valuation adjustment - - 5,747 5,747 Total Credit risk 275,202 35,565 28,974 339,741 Market risk 11,251 Operational risk 54,934 Interest rate risk in the banking book 33,599 Otherd 4,892 Total 444,417 30 June 2023 Credit risk Corporate 24,542 - 1,075 25,617 Business Lending 26,752 - 186 26,938 Property Finance 32,119 - - 32,119 Large Corporate - 20,281 - 20,281 Sovereign - 2,360 1,814 4,174 Financial Institutions - 14,895 82 14,977 Residential Mortgages 111,459 - 18,834 130,293 Australian Credit Cards 3,937 - - 3,937 Other Retail 5,113 - 467 5,580 Small Business 17,908 - 169 18,077 Specialised Lending 3,042 - 456 3,498 Securitisation 7,098 - - 7,098 New Zealand 42,809 - 2,015 44,824 Credit valuation adjustment - - 5,353 5,353 Total Credit risk 274,779 37,536 30,451 342,766 Market risk 14,561 Operational risk 55,362 Interest rate risk in the banking book 42,635 Otherd 4,692 Total 460,016 a. IRB approaches excluding Foundation IRB (FIRB). b. Under FIRB, an ADI must provide its own estimates of PD and maturity and rely on supervisory estimates of LGD and EAD. c. Westpac’s standardised risk weighted assets are categorised based on their equivalent IRB categories. d. Other assets include cash items, unsettled transactions, fixed assets and other non-interest earning assets.

12 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT LEVERAGE RATIO Leverage Ratio The following table summarises Westpac’s leverage ratio. $ billion 30 June 2024 31 March 2024 31 December 2023 30 September 2023 Net Tier 1 Regulatory Capital 64.9 66.7 65.3 65.9 Total Exposures 1,207.1 1,214.9 1,207.4 1,196.7 Leverage ratio 5.38% 5.49% 5.41% 5.50%

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 13 CREDIT RISK EXPOSURES Summary credit risk disclosure $m Exposure at Default Risk Weighted Assets Regulatory Expected Lossa Regulatory expected loss for non-defaulted exposures Specific Provision for Non-performing Exposures Actual losses for the 9 months ended 30 June 2024 Corporate 43,186 25,608 554 157 164 4 Business Lending 45,394 24,774 599 255 354 11 Property Finance 57,099 31,041 331 173 156 4 Large Corporate 41,498 20,753 96 95 1 - Sovereign 147,008 1,991 3 3 - - Financial Institutions 39,526 12,871 62 27 19 - Residential Mortgages 548,536 117,554 1,369 865 507 34 Australian Credit Cards 13,455 3,692 165 124 41 94 Other Retail 4,064 4,151 191 131 60 78 Small Business 28,021 17,282 516 335 193 36 Specialised Lending 4,574 3,568 31 31 - - Securitisation 38,834 7,443 - - - - Standardisedb 27,249 26,018 - - 115 14 New Zealand 131,646 46,809 610 369 194 15 Total 1,170,090 343,555 4,527 2,565 1,804 290 a. Includes regulatory expected losses for defaulted and non-defaulted exposures. b. Includes credit valuation adjustment. $m Exposure at Default Risk Weighted Assets Regulatory Expected Lossa Regulatory expected loss for non-defaulted exposures Specific Provision for Non-performing Exposures Actual losses for the 6 months ended 31 March 2024 Corporate 42,936 25,269 547 151 163 14 Business Lending 43,815 23,426 554 240 322 6 Property Finance 55,503 30,386 328 173 153 3 Large Corporate 40,205 20,558 85 85 - - Sovereign 168,637 1,919 2 2 - - Financial Institutions 38,428 13,088 60 28 17 - Residential Mortgages 540,189 115,918 1,327 851 479 20 Australian Credit Cards 13,561 3,789 166 128 38 56 Other Retail 4,271 4,259 191 132 59 50 Small Business 28,002 17,378 510 341 183 26 Specialised Lending 4,116 3,276 30 30 - - Securitisation 38,009 7,317 - - - - Standardisedb 27,411 26,668 - - 125 2 New Zealand 132,888 46,490 583 374 157 10 Total 1,177,971 339,741 4,383 2,535 1,696 187 a. Includes regulatory expected losses for defaulted and non-defaulted exposures. b. Includes credit valuation adjustment.

14 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT CREDIT RISK EXPOSURES $m Exposure at Default Risk Weighted Assets Regulatory Expected Lossa Regulatory expected loss for non-defaulted exposures Specific Provision for Non-performing Exposures Actual losses for the 9 months ended 30 June 2023 Corporateb 38,372 24,542 593 140 140 (25) Business Lending 42,310 26,752 506 270 282 23 Property Finance 53,904 32,119 300 164 136 3 Large Corporate 39,493 20,281 64 64 - - Sovereign 208,470 2,360 5 2 - - Financial Institutions 37,980 14,895 66 31 16 6 Residential Mortgages 523,670 111,459 1,112 760 354 20 Australian Credit Cards 13,653 3,937 170 130 36 72 Other Retail 5,263 5,113 225 147 74 84 Small Business 29,387 17,908 568 376 187 43 Specialised Lending 3,965 3,042 24 24 - - Securitisation 36,023 7,098 - - - - Standardisedc 29,481 28,436 - - 90 5 New Zealand 129,733 44,824 530 353 127 15 Total 1,191,704 342,766 4,163 2,461 1,442 246 a. Includes regulatory expected losses for defaulted and non-defaulted exposures. b. Corporate loan losses include the recovery of a previously written off loan of $40 million. c. Includes credit valuation adjustment.

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 15 Provision for expected credit losses This table discloses the provision for expected credit losses. Stage 1 and Stage 2 expected credit losses are classified as provisions held against performing exposures. Stage 3 expected credit losses are classified as specific provisions (SPs) described as individually assessed provisions (IAPs). Since 31 March 2024, defaulted credit exposures have increased by $0.6 billion, mostly across the residential mortgage and small business portfolios. This has been driven by an increase in 90+ day delinquencies in the program-managed portfolio, reflecting the impact of higher interest rates and rising cost of living pressures on customers. In addition, certain defaulted transaction-managed counterparties have been downgraded to doubtful grades. This has led to an increase in IAPs, which have been raised against the portion of those defaulted exposures where the full collection of principal and interest is unlikely. Conversely, the decrease in collectively assessed provisions (CAPs) was driven by the impact of more favourable economic forecasts being used in the calculation of provisions for expected credit losses (ECL). AAS Provisions Total Regulatory $m IAPs CAPs Provisions 30 June 2024 Specific Provisions for impaired loans 526 283 809 for defaulted but not impaired loans - 995 995 Total Specific Provision 526 1,278 1,804 Provisions held against performing exposures - 3,324 3,324 Total provisions for ECL 526 4,602 5,128 31 March 2024 Specific Provisions for impaired loans 461 238 699 for defaulted but not impaired loans - 997 997 Total Specific Provision 461 1,235 1,696 Provisions held against performing exposures - 3,439 3,439 Total provisions for ECL 461 4,674 5,135 30 June 2023 Specific Provisions for impaired loans 407 243 650 for defaulted but not impaired loans - 792 792 Total Specific Provision 407 1,035 1,442 Provisions held against performing exposures - 3,656 3,656 Total provisions for ECL 407 4,691 5,098

16 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT CREDIT RISK EXPOSURES Exposure at Default by major type The following tables segment the portfolio by characteristics that provide an insight into the assessment of credit risk concentration. Off-balance sheet Total Exposure at Default Average 9 months $m ended On balance sheet Non-market related Market related 30 June 2024 Corporate 29,476 10,042 3,668 43,186 41,891 Business Lending 39,372 5,945 77 45,394 43,824 Property Finance 51,282 5,583 234 57,099 55,436 Large Corporate 22,696 14,515 4,287 41,498 40,687 Sovereign 141,450 220 5,338 147,008 168,301 Financial Institutions 17,539 5,135 16,852 39,526 37,649 Residential Mortgages 485,265 63,271 - 548,536 539,179 Australian Credit Cards 6,192 7,263 - 13,455 13,553 Other Retail 3,222 842 - 4,064 4,440 Small Business 20,921 7,100 - 28,021 28,093 Specialised Lending 2,410 1,995 169 4,574 4,170 Securitisation 32,335 6,418 81 38,834 38,257 Standardised 18,804 5,173 3,272 27,249 28,518 New Zealand 110,323 20,661 662 131,646 133,290 Total 981,287 154,163 34,640 1,170,090 1,177,288 Off-balance sheet Total Exposure at Default Average 6 months $m ended On balance sheet Non-market related Market related 31 March 2024 Corporate 29,177 10,236 3,523 42,936 41,459 Business Lending 37,449 6,258 108 43,815 43,301 Property Finance 50,026 5,148 329 55,503 54,882 Large Corporate 21,256 14,620 4,329 40,205 40,416 Sovereign 152,731 222 15,684 168,637 175,399 Financial Institutions 16,877 5,644 15,907 38,428 37,023 Residential Mortgages 475,874 64,315 - 540,189 536,060 Australian Credit Cards 6,284 7,277 - 13,561 13,586 Other Retail 3,413 858 - 4,271 4,565 Small Business 20,768 7,234 - 28,002 28,116 Specialised Lending 2,264 1,660 192 4,116 4,035 Securitisation 30,971 6,907 131 38,009 38,065 Standardised 19,131 5,319 2,961 27,411 28,941 New Zealand 111,206 20,973 709 132,888 133,838 Total 977,427 156,671 43,873 1,177,971 1,179,686 Off-balance sheet Total Exposure at Default Average 9 months $m ended On balance sheet Non-market related Market related 30 June 2023 Corporate 26,027 9,223 3,122 38,372 37,741 Business Lending 36,926 5,325 59 42,310 41,586 Property Finance 48,244 5,387 273 53,904 53,301 Large Corporate 20,522 14,657 4,314 39,493 39,871 Sovereign 170,171 246 38,053 208,470 209,668 Financial Institutions 16,651 4,356 16,973 37,980 37,834 Residential Mortgages 458,515 65,155 - 523,670 520,972 Australian Credit Cards 6,182 7,471 - 13,653 13,664 Other Retail 4,288 975 - 5,263 5,425 Small Business 22,229 7,158 - 29,387 29,473 Specialised Lending 1,889 1,954 122 3,965 3,856 Securitisation 27,212 8,769 42 36,023 34,427 Standardised 23,107 3,458 2,916 29,481 29,867 New Zealand 107,576 21,628 529 129,733 132,119 Total 969,539 155,762 66,403 1,191,704 1,189,804

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 17 Non-performing credit exposures by portfolio The table below discloses non-performing credit exposures by credit asset class. Non-performing exposures are those captured by the definition of default contained in APS 220 Credit Risk Management, which occurs when either one, or both, of the following has happened: • Westpac considers that the borrower is unlikely to pay its credit obligations to Westpac in full, without recourse to actions such as realising available security; • the borrower is 90 days or more past-due on a credit obligation to Westpac. Non-performing exposures can only be reclassified back to performing after the borrower demonstrates timely repayments over the relevant probationary period, which is 90 days for non-restructured exposures and six months for restructured exposures. $m Non Performing Exposures - Not Impaired Non Performing Exposures - Impaired Total Non Performing Exposures Specific provisions for Non Performing Exposures Actual Losses for the 9 months ended 30 June 2024 Corporate 79 160 239 164 4 Business Lending 827 246 1,073 354 11 Property Finance 703 10 713 156 4 Large Corporate 2 4 6 1 - Sovereign - - - - - Financial Institutions 59 4 63 19 - Residential Mortgages 5,449 358 5,807 507 34 Australian Credit Cards - 96 96 41 94 Other Retail - 119 119 60 78 Small Business 656 545 1,201 193 36 Specialised Lending - - - - - Securitisation - - - - - Standardised 345 108 453 115 14 New Zealand 818 213 1,031 194 15 Total 8,938 1,863 10,801 1,804 290 $m Non Performing Exposures - Not Impaired Non Performing Exposures - Impaired Total Non Performing Exposures Specific provisions for Non Performing Exposures Actual Losses for the 6 months ended 31 March 2024 Corporate 89 163 252 163 14 Business Lending 904 161 1,065 322 6 Property Finance 694 13 707 153 3 Large Corporate - - - - - Sovereign - - - - - Financial Institutions 44 11 55 17 - Residential Mortgages 5,123 298 5,421 479 20 Australian Credit Cards - 92 92 38 56 Other Retail - 118 118 59 50 Small Business 779 370 1,149 183 26 Specialised Lending - - - - - Securitisation - - - - - Standardised 365 118 483 125 2 New Zealand 719 156 875 157 10 Total 8,717 1,500 10,217 1,696 187

18 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT CREDIT RISK EXPOSURES $m Non Performing Exposures - Not Impaired Non Performing Exposures - Impaired Total Non Performing Exposures Specific provisions for Non Performing Exposures Actual Losses for the 9 months ended 30 June 2023 Corporate 54 145 199 140 (25) Business Lending 879 185 1,064 282 23 Property Finance 694 26 720 136 3 Large Corporate - - - - - Sovereign - - - - - Financial Institutions 41 13 54 16 6 Residential Mortgages 3,777 233 4,010 354 20 Australian Credit Cards - 96 96 36 72 Other Retail - 150 150 74 84 Small Business 691 356 1,047 187 43 Specialised Lending - - - - - Securitisation - - - - - Standardised 307 126 433 90 5 New Zealand 653 88 741 127 15 Total 7,096 1,418 8,514 1,442 246

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 19 SECURITISATION Banking book summary of securitisation activity by asset type This table shows assets transferred into securitisation schemes by underlying asset type (ADI originated) for the relevant period. For the 3 months ended Recognised 30 June 2024 Amount gain or loss $m securitised on sale Residential mortgages 972 - Total 972 - For the 6 months ended Recognised 31 March 2024 Amount gain or loss $m securitised on sale Residential mortgages 4,714 - Total 4,714 - For the 3 months ended Recognised 30 June 2023 Amount gain or loss $m securitised on sale Residential mortgages 1,819 - Total 1,819 -

20 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT SECURITISATION Banking book summary of on and off-balance sheet securitisation by exposure type On balance sheet Total Securitisation Securitisation Off-balance Exposure $m retained purchased sheet at Default 30 June 2024 Securities - 9,153 - 9,153 Liquidity facilities - - 323 323 Funding facilities 6,580 - 845 7,425 Underwriting facilities - - - - Lending facilities 1,732 - 271 2,003 Warehouse facilities 14,870 - 5,060 19,930 Total 23,182 9,153 6,499 38,834 31 March 2024 Securities - 7,942 - 7,942 Liquidity facilities - - 378 378 Funding facilities 6,988 - 720 7,708 Underwriting facilities - - - - Lending facilities 1,831 - 159 1,990 Warehouse facilities 14,210 - 5,781 19,991 Total 23,029 7,942 7,038 38,009 30 June 2023 Securities - 8,163 65 8,228 Liquidity facilities - - 289 289 Funding facilities 4,309 - 495 4,803 Underwriting facilities - - - - Lending facilities 1,842 - 151 1,993 Warehouse facilities 12,896 - 7,813 20,709 Total 19,046 8,163 8,814 36,023

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 21 Trading book summary of on and off-balance sheet securitisation by exposure type1 On balance sheet Total Securitisation Securitisation Off-balance Exposure $m retained purchased sheet at Default 30 June 2024 Securities - 922 - 922 Liquidity facilities - - - - Funding facilities - - - - Underwriting facilities - - - - Lending facilities - - - - Warehouse facilities - - - - Credit enhancements - - - - Basis swaps - - 78 78 Other derivatives - - 3 3 Total - 922 81 1,003 31 March 2024 Securities - 610 - 610 Liquidity facilities - - - - Funding facilities - - - - Underwriting facilities - - - - Lending facilities - - - - Warehouse facilities - - - - Credit enhancements - - - - Basis swaps - - 130 130 Other derivatives - - 1 1 Total - 610 131 741 30 June 2023 Securities - 455 - 455 Liquidity facilities - - - - Funding facilities - - - - Underwriting facilities - - - - Lending facilities - - - - Warehouse facilities - - - - Credit enhancements - - - - Basis swaps - - 37 37 Other derivatives - - 5 5 Total - 455 42 498 1. EAD associated with trading book securitisation is not included in the EAD by major type on page 16. Trading book securitisation exposure is captured and risk weighted under APS 116.

22 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT LIQUIDITY COVERAGE RATIO Liquidity Coverage Ratio The Liquidity Coverage Ratio (LCR) measures a bank’s ability to meet its liquidity needs under an acute liquidity stress scenario (prescribed by APRA), measured over a 30-day time frame. LCR is calculated as High-Quality Liquid Assets (HQLA) as a percentage of Net Cash Outflows (NCO) as defined in APS 210. Westpac’s average LCR1 for the quarter was 130% (31 March 2024: 132%) and continues to be above the regulatory minimum of 100%. The decrease in average LCR for the quarter ended 30 June 2024 (130%) reflects a decrease in average liquid assets of $9.0 billion or 4.9%. This was driven by TFF maturities during the quarter, the higher average funding gap and lower average short-term wholesale borrowings partly offset by higher average issuance of term wholesale borrowings. Partly offsetting these factors was a decrease in average NCO driven by reduced wholesale funding outflows, primarily from long-term wholesale funding maturities. HQLA averaged $167.5 billion over the quarter (31 March 2024: $176.7 billion), comprising of cash and balances with central banks, Australian government and semi-government bonds. Westpac also holds other HQLA, mainly qualifying RBNZ securities. Funding is sourced from retail, small business, corporate and institutional customer deposits and wholesale funding. Westpac seeks to minimise the outflows associated with this funding by targeting customer deposits with lower LCR outflow rates and actively manages the maturity profile of its wholesale funding portfolio. Westpac maintains a buffer over the regulatory minimum of 100% in line with its liquidity risk tolerance. 30 June 2024 31 March 2024 $m Total unweighted value (average) Total weighted value (average) Total unweighted value (average) Total weighted value (average) Liquid assets, of which: 1 High-quality liquid assets (HQLA) 167,467 176,659 2 Alternative liquid assets (ALA) - - 3 Reserve Bank of New Zealand (RBNZ) securities 5,103 4,871 Cash Outflows 4 Retail deposits and deposits from small business customers, of which: 344,130 30,643 338,115 30,017 5 Stable deposits 165,424 8,271 163,129 8,156 6 Less stable deposits 178,706 22,372 174,986 21,861 7 Unsecured wholesale funding, of which: 164,497 74,059 172,818 78,521 8 Operational deposits (all counterparties) and deposits in networks for cooperative banks 73,227 18,240 76,920 19,160 9 Non-operational deposits (all counterparties) 81,023 45,572 82,377 45,840 10 Unsecured debt 10,247 10,247 13,521 13,521 11 Secured wholesale funding 2,269 2,039 12 Additional requirements, of which: 199,498 31,664 216,585 33,024 13 Outflows related to derivatives exposures and other collateral requirements 13,641 13,641 13,890 13,890 14 Outflows related to loss of funding on debt products 661 661 810 810 15 Credit and liquidity facilities 185,196 17,362 201,885 18,324 16 Other contractual funding obligations 9,825 6,910 8,425 6,186 17 Other contingent funding obligations 66,482 5,178 49,637 4,334 18 Total cash outflows 150,723 154,121 Cash inflows 19 Secured lending (e.g. reverse repos) 13,453 - 8,915 - 20 Inflows from fully performing exposures 10,716 5,790 9,863 5,387 21 Other cash inflows 11,743 11,743 11,626 11,626 22 Total cash inflows 35,912 17,533 30,404 17,013 23 Total liquid assets 172,570 181,530 24 Total net cash outflows 133,190 137,108 25 Liquidity Coverage Ratio (%) 130% 132% Number of data points used 63 63 1. Average LCR is calculated as a simple average of the daily observations over the quarter. Number of data points used is reported in the table.

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 23 APPENDICES APPENDIX I – APS 330 QUANTITATIVE REQUIREMENTS APPENDIX II – EXCHANGE RATES

24 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT APPENDIX I – APS 330 QUANTITATIVE REQUIREMENTS APS 330 reference Westpac disclosure Page General requirements Paragraph 51 Tier 1 Capital, total exposures and leverage ratio 9, 12 Attachment C: Table 3: Capital adequacy (a) to (e) Capital requirements 10 (f) Westpac’s capital adequacy ratios 9 Capital adequacy ratios of major subsidiary banks 9 Table 4: Credit risk (a) Exposure at Default by major type 16 (b) Non-performing and past due loans by portfolio 17 (c) Provisions held against performing exposures 15 Table 5: Securitisation exposures (a) Banking book summary of securitisation activity by asset type 19 (b) Banking book summary of on and off-balance sheet securitisation by exposure type 20 Trading book summary of on and off-balance sheet securitisation by exposure type 21 Attachment F: Table 20: Liquidity Coverage Ratio disclosure template Liquidity Coverage Ratio disclosure 22

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 25 APPENDIX II – EXCHANGE RATES Exchange rates against A$ 30 June 31 March 30 June As at 2024 2024 2023 USD 0.6633 0.6528 0.6625 GBP 0.5248 0.5167 0.5255 NZD 1.0932 1.0892 1.0890 EUR 0.6202 0.6033 0.6101

26 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT GLOSSARY

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 27 GLOSSARY Credit Quality Actual losses Represent direct write-offs and write-offs from provisions after adjusting for recoveries. Australian accounting standards (AAS) A set of Australian reporting standards and interpretations issued by the Australian Accounting Standards Board. Collectively assessed provisions (CAPs) Collectively assessed provisions for expected credit loss under AASB 9 represent the Expected Credit Loss (ECL) which is collectively assessed in pools of similar assets with similar risk characteristics. This incorporates forward-looking information and does not require an actual loss event to have occurred for an impairment provision to be recognised. Credit valuation adjustment (CVA) risk Refer to mark-to-market related credit risk. Default From 1 January 2023: Refer to Non-performing exposures definition. Defaulted but not impaired From 1 January 2023: Non-performing exposures that are not captured by the definition of impaired exposures contained in this glossary. Expected credit loss (ECL) Expected credit losses are a probability-weighted estimate of the cash shortfalls expected to result from defaults over the relevant time frame. They are determined by evaluating a range of possible outcomes and taking into account the time value of money, past events, current conditions and forecasts of future economic conditions. Exposure at default (EAD) EAD is calculated at facility level and includes outstandings as well as the proportion of committed undrawn that is expected to be drawn in the event of a future default. Impaired exposures Includes exposures that have deteriorated to the point where full collection of interest and principal is in doubt, based on an assessment of the customer’s outlook, cashflow, and the net realisation of value of assets to which recourse is held: • facilities 90 days or more past due, and full recovery is in doubt: exposures where contractual payments are 90 or more days in arrears and the net realisable value of assets to which recourse is held may not be sufficient to allow full collection of interest and principal, including overdrafts or other revolving facilities that remain continuously outside approved limits by material amounts for 90 or more calendar days; • non-accrual facilities: exposures with individually assessed impairment provisions held against them, excluding restructured loans; • restructured facilities: exposures where the original contractual terms have been formally modified to provide for concessions of interest or principal for reasons related to the financial difficulties of the customer; • other assets acquired through security enforcement (includes other real estate owned): includes the value of any other assets acquired as full or partial settlement of outstanding obligations through the enforcement of security arrangements; and • any other facilities where the full collection of interest and principal is in doubt. Individually assessed provisions (IAPs) Provisions raised for expected credit losses on credit exposures that are known to be impaired and are assessed on an individual basis. The estimated losses on these impaired exposures is based on expected future cash flows discounted to their present value and, as this discount unwinds, interest will be recognised in the income statement. Internal Ratings-Based approach (IRB & Advanced IRB) These approaches allow banks to use internal estimates of the risks of their loans as inputs into the determination of the amount of credit risk capital needed to support the organisation. In the Advanced IRB approach, banks must supply their own estimates for all three credit parameters – Probability of Default, Loss Given Default and Exposure at Default. Loss given default (LGD) The LGD represents an estimate of the expected severity of a loss to Westpac should a customer default occur during a severe economic downturn. Westpac assigns LGD to each credit facility, assuming an event of default has occurred and taking into account a conservative estimate of the net realisable value of assets to which Westpac has recourse and over which it has security. LGDs also reflect the seniority of exposure in the customer’s capital and debt structure. Mark-to-market related credit risk The risk of mark-to-market losses related to deterioration in the credit quality of a derivative counterparty also referred to as credit valuation adjustment (CVA) risk. Non-performing exposures Credit exposures captured by the definition of default contained in APS 220, which occurs when either one, or both, of the following has happened: • Westpac considers that the borrower is unlikely to pay its credit obligations to Westpac in full, without recourse to actions such as realising available security; • the borrower is 90 days or more past-due on a credit obligation to Westpac. Non-Performing Exposures – Impaired Exposures that meet the characteristics of Non-Performing exposures and Impaired exposures (see separate definitions). Off-balance sheet exposure Credit exposures arising from facilities that are not recorded on Westpac's balance sheet (under accounting methodology). Undrawn commitments and the expected future exposure calculated for Westpac's derivative products are included in off-balance sheet exposure. On balance sheet exposure Credit exposures arising from facilities that are recorded on Westpac's balance sheet (under accounting methodology). Probability of default (PD) Probability of default is a through-the-cycle assessment of the likelihood of a customer defaulting on its financial obligations within one year.

28 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT GLOSSARY Capital Adequacy Additional Tier 1 capital (AT1) Comprises high quality components of capital that provide a permanent and unrestricted commitment of funds that are freely available to absorb losses but rank behind claims of depositors and other more senior creditors. They also provide for fully discretionary capital distributions. Common equity Tier 1 (CET1) capital The highest form of capital. The key components of common equity are shares, retained earnings and undistributed current year earnings. Interest rate risk in the banking book (IRRBB) The risk of loss in earnings or economic value in the banking book as a consequence of movements in interest rates. Risk weighted assets (RWA) Assets (both on and off-balance sheet) are risk weighted according to each asset's inherent potential for default and what the likely losses would be in case of default. In the case of non-asset backed risks (i.e. market and operational risk), RWA is determined by multiplying the capital requirements for those risks by 12.5. Tier 2 capital Includes other capital elements, which, to varying degrees, fall short of the quality of Tier 1 capital but still contribute to the overall strength of an entity as a gone concern capital. Value at Risk (VaR) VaR is a measure of the potential loss in economic value arising from adverse market movements and is calculated over a defined time horizon (typically 1-day or 1-year) at a 99% confidence internal using a minimum of one year of historical data. VaR takes account of all material market variables that may cause a change in the value of the trading portfolio or the banking book including interest rates, foreign exchange rates, price changes, volatility, and the correction among these variables. Leverage Ratio Leverage ratio The leverage ratio is defined by APRA as Tier 1 capital divided by the “Exposure measure” and is expressed as a percentage. “Exposure measure” includes on-balance sheet exposures, derivatives exposures, securities financing transaction (SFT) exposures, and other off-balance sheet exposures. Securitisation Banking book The banking book includes all securities that are not actively traded by Westpac. Trading book Trading book activity represents positions in financial instruments, including derivative products and other off-balance sheet instruments, that are held either with trading intent or to hedge other elements of the trading book. Liquidity Alternative Liquid Assets (ALA) Assets that qualify for inclusion in the numerator of the LCR in jurisdictions where there is insufficient supply of HQLA. Committed Liquidity Facility (CLF) Facility made available by the RBA to cover the shortfall in Australian dollars between the ADI's holding of HQLA and net cash outflows, subject to qualifying conditions. The facility was phased out by 1 January 2023. The CLF was treated as an ALA for the Group's LCR calculation. Funding gap Difference between customer deposits and customer loans. High-quality liquid assets (HQLA) Assets which meet APRA’s criteria for inclusion as HQLA in the numerator of the LCR. Liquidity coverage ratio (LCR) An APRA requirement to maintain an adequate level of unencumbered high quality liquid assets, to meet liquidity needs for a 30 calendar day period under an APRA-defined severe stress scenario. Absent a situation of financial stress, the value of the LCR must not be less than 100%. LCR is calculated as the percentage ratio of stock of HQLA, CLF and qualifying Reserve Bank of New Zealand securities over the total net cash out flows in a modelled 30 day defined stressed scenario. Net cash outflows Total expected cash outflows minus total expected cash inflows in the specified LCR stress scenario calculated in accordance with APRA’s liquidity standard. Term Funding Facility (TFF) A facility that was established by the RBA in March 2020 to provide 3 year term funding to Australian ADIs via repurchase transactions, subject to qualifying conditions, to help support lending to Australian businesses. The facility closed to new draw downs in June 2021. Other ADI Authorised deposit-taking institution. ADIs are corporations that are authorised under the Banking Act 1959 to carry on banking business in Australia. APRA Australian Prudential Regulatory Authority APS Australian Prudential Standards CCB Capital Conservation Buffer D-SIBs Domestic Systemically Important Banks ELE Extended licensed entity. ELE's comprises of an ADI and any subsidiaries of the ADI that have been approved by APRA as being part of a single ‘stand-alone’ entity. FIRB Foundation Internal-Ratings Based Approach G-SIB Global Systemically Important Banks ICAAP Internal Capital Adequacy Assessment Process RBA Reserve Bank of Australia RBNZ Reserve Bank of New Zealand SMA Standardised Measurement Approach WNZL Westpac New Zealand Limited

PILLAR 3 REPORT APPENDICES GLOSSARY DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS 29 DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS

30 WESTPAC GROUP JUNE 2024 PILLAR 3 REPORT DISCLOSURE REGARDING FORWARD-LOOKING STATEMENTS The information contained in this report contains statements that constitute “forward-looking statements” within the meaning of section 21E of the U.S. Securities Exchange Act of 1934. Forward-looking statements are statements that are not historical facts. Forward-looking statements appear in a number of places in this report and include statements regarding Westpac’s current intent, belief or expectations with respect to its business and operations, macro and micro economic and market conditions, results of operations and financial condition and performance, capital adequacy and risk management, including, without limitation, future loan loss provisions and financial support to certain borrowers, forecasted economic indicators and performance metric outcomes, indicative drivers, climate- and other sustainability- related statements, commitments, targets, projections and metrics, and other estimated and proxy data. Words such as ‘will’, ‘may’, ‘expect’, ‘intend’, ‘seek’, ‘would’, ‘should’, ‘could’, ‘continue’, ‘plan’, ‘estimate’, ‘anticipate’, ‘believe’, ‘probability’, ‘indicative’, ‘risk’, ‘aim’, ‘outlook’, ‘forecast’, ‘f’cast’, ‘f’, ‘assumption’, ‘projection’, ‘target,’ goal’, ‘guidance’, ‘ambition’ or other similar words are used to identify forward-looking statements, or otherwise identify forward-looking statements. These forward-looking statements reflect Westpac’s current views on future events and are subject to change, certain known and unknown risks, uncertainties and assumptions and other factors which are, in many instances, beyond Westpac’s control (and the control of Westpac’s officers, employees, agents and advisors), and have been made based on management’s expectations or beliefs concerning future developments and their potential effect upon Westpac. Forward-looking statements may also be made, verbally or in writing, by members of Westpac’s management or Board in connection with this report. Such statements are subject to the same limitations, uncertainties, assumptions and disclaimers set out in this report. There can be no assurance that future developments or performance will align with Westpac’s expectations or that the effect of future developments on Westpac will be those anticipated. Actual results could differ materially from those Westpac expects or which are expressed or implied in forward-looking statements, depending on various factors including, but not limited to, those described in the section titled ‘Risk factors’ in Westpac’s 2024 Interim Financial Results Announcement. When relying on forward-looking statements to make decisions with respect to Westpac, investors and others should carefully consider such factors and other uncertainties and events. Except as required by law, Westpac assumes no obligation to revise or update any forward-looking statements in this report, whether from new information, future events, conditions or otherwise, after the date of this report.

WESTPAC.COM.AU

ASX Release 19 August 2024 WESTPAC 3Q24 UPDATE Following is Westpac’s 3Q24 update for the three months ended 30 June 2024. For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised for release by Tim Hartin, Company Secretary. Level 18, 275 Kent Street Sydney, NSW, 2000

ASX ANNOUNCEMENT I WESTPAC 3Q24 UPDATE ASX ANNOUNCEMENT 3Q24 UPDATE 19 AUGUST 2024 FINANCIAL HIGHLIGHTS $1.8bn Unaudited net profit up 6% on 1H24 average up 2% ex Notable Items 1.92% Net interest margin up 3bps on 1H24 12.0% CET1 capital ratio above target operating range of 11.0% to 11.5% 11.3% Return on tangible equity1 up 79bps on 1H24 1.82% Core NIM2 up 2bps on 1H24 1.34% CAP to credit RWA down 4bps on Mar-24 Westpac Third Quarter 2024 Update Peter King – Chief Executive Officer "Our consistent focus on customer service has contributed to another solid quarter. We grew the business and maintained a strong financial position. Our unaudited net profit of $1.8 billion was up 6% compared to the first half 2024 quarterly average. Excluding the impact of Notable Items, related solely to hedge accounting which will reverse over time, unaudited net profit increased 2% to $1.8 billion. The slight decline in pre-provision profit was more than offset by a reduction in impairment charges. Net interest margin (NIM) of 1.92% was well managed with Core NIM rising 2 basis points to 1.82%. Operating momentum was positive with customer deposit growth of $15.4 billion and loan growth of $14.7 billion. This includes Australian household deposit growth of 3%3 and housing loan growth of 8%3 , which outperformed system4 .. I’m particularly pleased with our efforts to enhance customer experience and keep customers safe. This quarter we: • Launched an online ID verification process for new to bank home loan customers; • Introduced mobile notifications alerting customers of bonus interest opportunities on their savings; • Reduced the time for existing small business customers to receive a cash-backed Bank Guarantee from up to five days to less than two days; and • Released a new version of Westpac Verify to enhance detection of payment scams and reduce mistaken payments. We were joint lead manager on the first issuance under the Australian Government Green Bond Framework, a $7 billion 10-year sovereign green bond.

ASX ANNOUNCEMENT I WESTPAC 3Q24 UPDATE We continue to prioritise financial strength with capital, funding and liquidity well above regulatory minimums. The cost of living and high interest rates remain a challenge for some customers while many businesses are facing cost pressures and experiencing lower demand. We encourage customers to call us if they need help." Operating trends The NIM of 1.92% comprised: • Core NIM of 1.82%, up 2 basis points, reflecting the benefit of higher earnings on capital and hedged deposits; • Treasury and Markets income of 12 basis points, down 2 basis points; and • Hedging items, that will reverse over time, which detracted 2 basis points. Net interest income increased by 2% reflecting both higher net interest margin and loan growth. Non-interest income declined by 4% on lower financial markets revenue. Expenses increased by 2% due to higher investment spend which is weighted towards the second half 2024, along with ongoing inflationary pressures particularly in technology services. Impairment charges to average loans of 4 basis points were down from 9 basis points, reflecting an improvement in the economic outlook. Financial strength The CET1 capital ratio was 12.0% as at 30 June 2024, above the target operating range of 11.0% to 11.5%. The proforma CET1 capital ratio of 11.9% incorporates the partial reduction in the APRA capital risk overlay, which became effective in July 2024, the benefit from APRA's approval of our IRRBB model and assumes completion of the remaining on market share buyback. The quarterly average liquidity coverage ratio of 130% and net stable funding ratio of 113% remain above regulatory minimums. The Group has raised $36 billion of new long-term wholesale funding in the financial year to date. Credit impairment provisions were $5.1 billion as at 30 June 2024, $1.6 billion above expected losses of the base case economic scenario. The ratio of CAP to credit RWA decreased slightly to 1.34%. The Group has completed 60%5 of the previously announced $2.5 billion on market share buyback. Refer to the 3Q24 Investor Discussion Pack slides for further details.

ASX ANNOUNCEMENT I WESTPAC 3Q24 UPDATE Financial summary6 Excluding Notable Items $b 3Q24 % Mov't 3Q24 - 1H24 qtr ave 3Q24 % Mov't 3Q24 - 1H24 qtr ave Net interest income 4.7 2 4.7 - Non-interest income 0.7 (4) 0.7 (4) Net operating income 5.4 1 5.4 - Operating expenses (2.7) 2 (2.7) 2 Pre-provision profit 2.6 1 2.7 (2) Impairment charges (0.1) (58) (0.1) (58) Net profit after tax 1.8 6 1.8 2 Return on equity 10.0% 69bps 10.1% 36bps Return on tangible equity 11.3% 79bps 11.4% 42bps Further information Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations +61 402 393 619 +61 422 800 321 Content in this announcement principally covers and compares the 3Q24 and 1H24 quarterly average periods unless otherwise stated. All amounts are in Australian dollars. Certain amounts and ratios, including amounts and ratios excluding Notable Items are not defined by Australian Accounting Standards (AAS). These non-AAS measures are identified and described in the ‘Introduction – Non-AAS financial measures’ section in the 2024 Interim Financial Results. This announcement contains ‘forward-looking statements’ and statements of expectation reflecting Westpac’s current views on future events. They are subject to change without notice and certain risks, uncertainties and assumptions which are, in many instances, beyond its control. They have been based upon management's expectations and beliefs concerning future developments and their potential effect on Westpac. Should one or more of the risks or uncertainties materialise, or should underlying assumptions prove incorrect, actual results may differ materially from those expressed or implied in such statements. Investors should not place undue reliance on forward-looking statements and statements of expectation. Except as required by law, Westpac is not responsible for updating, or obliged to update, any matter arising after the date of this announcement. The information in this announcement is subject to the information in Westpac’s ASX filings, including in its 2024 Interim Financial Results. Also refer to the disclaimer on page 16 of the Westpac 3Q24 Investor Discussion Pack. Footnotes: 1. The ROTE calculation is described further in the 2024 Interim Financial Results Announcement. See also the return on equity set out in the Financial Summary table above. 2. Net interest margin excluding Notable Items, Treasury & Markets. 3. 3Q24 annualised. 4. Based on Monthly ADI statistics published by APRA for the 3 months ending 30 June 2024. 5. As at 16 August 2024. 6. Table may not add due to rounding.

ASX Release 19 August 2024 WESTPAC 3Q24 INVESTOR DISCUSSION PACK Following are Westpac’s 3Q24 slides covering financial performance, capital, credit quality and funding for the three months ended 30 June 2024. For further information: Hayden Cooper Justin McCarthy Group Head of Media Relations General Manager, Investor Relations 0402 393 619 0422 800 321 This document has been authorised for release by Tim Hartin, Company Secretary. Level 18, 275 Kent Street Sydney, NSW, 2000

3Q24 INVESTOR DISCUSSION PACK FOR THE 3 MONTHS ENDED 30 JUNE 2024 © Westpac Banking Corporation ABN 33 007 457 141 This document should be read in conjunction with Westpac’s June 2024 Pillar 3 Report. All amounts are in Australian dollars.

3Q24 SUMMARY1 2 Westpac Group 3Q24 Investor Discussion Pack SUMMARY 1 30 June 2024 compared to 31 March 2024 unless otherwise stated. 2 3Q24 annualised. 3 Based on Monthly ADI statistics published by APRA for the 3 months ending 30 June 2024. 4 Target operating range is 11.0-11.5%. 5 Quarterly average liquidity coverage ratio. FUNDING AND LIQUIDITY REMAIN WELL POSITIONED • LCR 130%5 • NSFR 113% • Deposit to loan ratio 83.3%, up 40bps CAPITAL ABOVE OPERATING RANGE • CET1 capital ratio of 12.0%, above target operating range4 • RWA up $7.3bn or 1.6% mainly due to loan growth and higher IRRBB WELL PROVISIONED • Total provisions $5.1bn, flat • CAP to credit RWA 134bps, down 4bps • Stressed assets to TCE 1.42%, up 6bps • Mortgage 90+ day delinquencies: • Australia 1.12%, up 6bps • New Zealand 0.47%, flat STRONG FINANCIAL PERFORMANCE • Net profit $1.8bn, up 6%, excluding Notable Items up 2%: − revenue flat − expenses up 2% • NIM up 3bps to 1.92%, Core NIM up 2bps to 1.82% • Australian household deposit growth of 3%2 and housing loan growth of 8%2, which outperformed system3 • Expenses increased 2% reflecting higher investment and technology spend • Impairment charges to average loans of 4bps, down from 9bps

NET INTEREST MARGIN $b 3Q24 % movement 3Q24 - 1H24 qtr average Net interest income 4.7 - Non-interest income 0.7 (4) Net operating income 5.4 - Expenses (2.7) 2 Pre-provision profit 2.7 (2) Impairment charges (0.1) (58) Tax and non-controlling interests (NCI) (0.8) 2 Net profit 1.8 2 LOANS AND DEPOSITS ($BN) NET PROFIT EXCLUDING NOTABLE ITEMS Westpac Group 3Q24 Investor Discussion Pack FINANCIAL PERFORMANCE Composition of NIM (%) 1Q24 2Q24 3Q24 Core NIM 1.80 1.79 1.82 Treasury & Markets 0.13 0.15 0.12 Core NIM, Treasury & Markets 1.93 1.94 1.94 Notable Items: Hedging (0.15) 0.06 (0.02) NIM 1.78 2.00 1.92 756 785 800 Jun-23 Mar-24 Jun-24 Up 6% 636 651 666 Jun-23 Mar-24 Jun-24 FINANCIAL PERFORMANCE Up 5% Loans Deposits 3

12.55 39 11.96 11.91 (58) (21) (11) (5) (3) (5) Mar-24 3Q24 Net profit 1H24 dividend RWA Special dividend Share buyback Other Jun-24 Jun-24 Pro forma Key capital ratios (%) Sep-23 Mar-24 Jun-24 Level 2 CET1 capital ratio 12.4 12.5 12.0 Additional Tier 1 capital ratio 2.2 2.5 2.4 Tier 1 capital ratio 14.6 15.0 14.4 Tier 2 capital ratio 5.9 6.4 6.5 Total regulatory capital ratio 20.5 21.4 20.9 Risk weighted assets (RWA) ($bn) 451 444 452 Leverage ratio 5.5 5.5 5.4 Level 1 CET1 capital ratio 12.6 12.8 12.1 Internationally comparable ratios5 Leverage ratio (internationally comparable) 6.0 6.0 5.8 CET1 capital ratio (internationally comparable) 18.7 18.6 17.8 LEVEL 2 CET1 CAPITAL RATIO MOVEMENTS (%, BPS) CET1 CAPITAL RATIO 12.0% CAPITAL 1 Capital deductions and other items including FX translation impacts. 2 Remaining $1.4 billion of announced on market share buybacks in Nov-23 and May-24. 3 Reduction in operational risk capital overlay from $1 billion to $500 million effective Jul-24. 4 APRA approved IRRBB model effective Aug-24. 5 Internationally comparable methodology references the Australian Banking Association (ABA) study on the comparability of APRA’s capital framework and finalised reform released on 10 March 2023. 1 Remaining share buyback: (33bps)2 Op risk overlay removal: 17bps3 IRRBB model approval: 11bps4 Lending : (10bps) Credit quality : (5bps) IRRBB: (8bps) 4 Westpac Group 3Q24 Investor Discussion Pack

(0.3) 444.4 3.8 2.9 0.6 0.3 451.7 Mar-24 Credit risk IRRBB Market risk Operational risk Other Jun-24 RWA1 ($BN) CREDIT RWA1 ($BN) IRRBB RWA1 ($BN) 16 8 9 20 21 22 5 5 5 40 34 36 4.26 3.79 4.21 -4 -3 -2 -1 0 1 2 3 4 -10 0 10 20 30 40 50 60 Sep-23 Mar-24 Jun-24 RISK WEIGHTED ASSET MOVEMENTS CAPITAL 1 Chart may not add due to rounding. 2 Counter-party credit and mark to market risk. 339.7 3.5 1.9 (0.7) (0.5) (0.4) 343.6 Mar-24 Lending Credit quality Data refinement CPC & MTM risk FX translation Jun-24 Up $3.8bn or 1.1% Up $7.3bn or 1.6% 2 5 Westpac Group 3Q24 Investor Discussion Pack Driven by residential mortgage arrears Optionality and basis risk Embedded loss/(gain) Repricing and yield curve risk 3y Swap rate (in %)

407 351 442 461 526 1,035 1,061 1,109 1,231 1,278 2,200 2,405 2,410 2,478 2,399 809 692 708 705 712 647 432 403 260 213 5,098 4,941 5,072 5,135 5,128 Jun-23 Sep-23 Dec-23 Mar-24 Jun-24 Overlay Stage 1 CAP Stage 2 CAP Stage 3 CAP Stage 3 IAP Increased mortgage 90+ day delinquencies Forecasts for base case ECL2 Base case Downside 2024 2025 Trough / peak3 GDP growth 1.6% 2.3% (6%) Unemployment 4.3% 4.6% 11% Residential property prices 4.2% 4.0% (27%) Commercial property prices (9.3%) 1.4% (32%) TOTAL PROVISIONS FOR EXPECTED CREDIT LOSSES KEY RATIOS 1 ($M) PROVISIONS FOR EXPECTED CREDIT LOSS CREDIT QUALITY 1 Includes provisions for debt securities. 2 Forecast date is 17 June 2024. 3 These key economic indicators represent trough or peak values that characterise the scenarios considered in setting downside severity. Residential and commercial forecasts represent cumulative reduction over a two-year period. Includes a reduction in overlay for mortgage delinquencies reflected in higher stage 3 modelled provisions Increase driven by 4 single name exposures Reduction reflects changes to economic forecasts and the transition to stage 3 CAP Sep-23 Mar-24 Jun-24 Provisions to gross loans (bps) 63 65 64 Impaired asset provisions to impaired assets (%) 43 47 43 Collectively assessed provisions to credit RWA (bps) 135 138 134 6 Westpac Group 3Q24 Investor Discussion Pack FORECASTS USED IN ECONOMIC SCENARIOS

0.12 0.11 0.11 0.12 0.15 0.35 0.39 0.42 0.46 0.49 0.23 0.22 0.22 0.24 0.23 0.46 0.54 0.47 0.54 0.55 1.16 1.26 1.22 1.36 1.42 Jun-23 Sep-23 Dec-23 Mar-24 Jun-24 Impaired Non-performing, 90+ days Non-performing, <90 days Watchlist & substandard AUSTRALIAN MORTGAGE DELINQUENCIES (%) AUSTRALIAN CONSUMER FINANCE 90+ DELINQUENCIES (%) STRESSED EXPOSURES AS A % OF TCE CREDIT QUALITY METRICS CREDIT QUALITY 1 Portfolio has been in run off since March 2022. 0.78 2.64 4.10 0.0 1.0 2.0 3.0 4.0 5.0 6.0 Jun-22 Dec-22 Jun-23 Dec-23 Jun-24 Credit cards Personal loans Auto finance (consumer - in run off) 0.76 1.12 1.90 0.0 1.0 2.0 3.0 4.0 Jun-22 Dec-22 Jun-23 Dec-23 Jun-24 90+ dpd excl. 6 months serviceability hold-out period 90+ day delinquencies 30+ day delinquencies 1 7 Westpac Group 3Q24 Investor Discussion Pack

0.0 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 Property Wholesale & retail trade Manufacturing Agriculture, forestry & fishing Services Property & business services Utilities Transport & storage Construction Accommodation cafes & restaurants Mining Sep-23 Mar-24 Jun-24 CORPORATE AND BUSINESS STRESSED EXPOSURES BY INDUSTRY SECTOR (%) EXPOSURE AND CREDIT QUALITY BY SECTOR Sector Finance & Insurance1 Property2 Wholesale & retail trade Manufacturing Agriculture, forestry & fishing Services3 Property & business services Utilities Transport & storage Construction4 Accomm, cafes & restaurants Mining TCE ($bn) Jun-24 168.6 84.2 31.1 26.1 25.1 24.7 24.6 21.4 19.8 13.8 11.3 7.9 Mar-24 195.4 82.2 31.1 25.4 24.3 24.6 24.0 20.6 20.5 13.1 11.5 7.6 Stressed (%)5,6 Jun-24 0.1 2.5 5.6 3.3 5.5 3.2 3.1 0.4 1.1 5.3 3.9 4.7 Mar-24 0.1 2.6 5.2 3.1 5.2 3.0 2.8 0.5 1.1 5.7 3.7 5.2 Impaired (%)6 Jun-24 0.0 0.1 0.8 0.9 0.5 0.4 0.5 0.0 0.4 0.7 0.3 0.1 Mar-24 0.0 0.1 0.7 0.6 0.3 0.4 0.5 0.0 0.1 0.6 0.3 0.1 CREDIT QUALITY ACROSS SECTORS CREDIT QUALITY 1 Finance and insurance includes banks, non-banks, insurance companies and other firms providing services to the finance and insurance sectors. Includes assets held for liquidity portfolio. 2 Property includes both residential and non-residential property investors and developers and excludes real estate agents. 3 Services includes education, health & community services, cultural & recreational and personal & other services. 4 Construction includes building and non-building construction, and industries serving the construction sector. 5 Includes impaired exposures. 6 Percentage of portfolio TCE. 8 Westpac Group 3Q24 Investor Discussion Pack Downgrade of a small number of customers

Australian mortgage portfolio Sep-23 balance Mar-24 balance Jun-24 balance Total portfolio ($bn) 485.6 495.2 504.2 Owner occupied (OO) (%) 67.1 67.8 67.7 Investment property loans (IPL) (%) 31.6 31.0 31.2 Portfolio loan/line of credit (LOC) (%) 1.3 1.2 1.1 Variable rate / Fixed rate (%) 76/24 85/15 89/11 Interest only (I/O) (%) 12.8 12.3 12.0 Proprietary channel (%) 50.8 49.7 48.7 First home buyer (%) 10.8 11.3 11.5 Mortgage insured (%) 13.1 12.6 12.0 Sep-23 Mar-24 Jun-24 Average loan size1 ($’000) 301 309 316 Customers ahead on repayments including offset account balances (%) By accounts 79 80 81 By balances 75 77 78 Mortgage losses net of insurance2 ($m) 21 20 14 Annual mortgage loss rate3 (bps) 0.7 0.8 0.9 Hardship4 balances (% of portfolio) 0.71 1.05 1.18 FIXED RATE MORTGAGE EXPIRY SCHEDULE ($BN, FOR THE 6MTHS TO) LOAN-TO-VALUE RATIOS (LVRS) (%) AUSTRALIAN MORTGAGE PORTFOLIO COMPOSITION MORTGAGE CREDIT QUALITY 1 Average loan size includes amortisation. Calculated at account level, where split loans represent more than one account. 2 Mortgage losses for Sep-23 and March-24 are for the 6 months ending. Mortgages losses for June are for the 3 months ending. 3 Mortgage loss rates for September are actual losses for the 12 months ending. Mortgage loss rates for March are annualised, based on losses for the 6 months ending. Mortgage loss rates for June are annualised, based on losses for the 9 months ending. 4 Financial hardship assistance is available to customers experiencing temporary financial difficulty, including changes in income due to illness, a relationship breakdown or natural disasters. Hardship assistance often takes the form of a reduction or deferral of repayments for a short period. 5 Dynamic LVR is the loan-to-value ratio taking into account the current loan balance, changes in security value, offset account balances and other loan adjustments. Property valuation source CoreLogic. 18 19 12 20 19 51 37 30 21 14 10 Mar-22 Sep-22 Mar-23 Sep-23 Mar-24 Sep-24 Mar-25 Sep-25 >Sep-25 Expired Yet to expire 22 17 41 12 6 1 65 15 12 6 1 0.4 0.6 0 20 40 60 80 100 0<=60 60<=70 70<=80 80<=90 90<=95 95<=100 >100 Portfolio LVR at origination Portfolio dynamic LVR5 9 Westpac Group 3Q24 Investor Discussion Pack

10 CUSTOMERS AHEAD ON REPAYMENTS1 (% BY BALANCES) OFFSET ACCOUNT BALANCES2 ($BN) BUFFER TO BALANCE RATIO3 (%) 2 24 20 19 14 22 2 21 19 20 15 23 2 20 19 21 16 23 Behind On time < 1mth < 6mths >2yrs Sep-23 Mar-24 Jun-24 Westpac Group 3Q24 Investor Discussion Pack AUSTRALIAN MORTGAGE PORTFOLIO REPAYMENT BUFFERS MORTGAGE CREDIT QUALITY 1 Customer loans ahead on payments exclude equity/line of credit products as there are no scheduled principal payments. Includes mortgage offset accounts. ‘Behind’ is more than 30 days past due. ‘On time’ includes up to 30 days past due. 2 Includes RAMS from Sep-20 onwards. 3 Excludes Line of Credit. 14 5 4 16 39 Jun-24 Investment property loans – generally maintain higher balances for tax purposes Accounts opened in the last 12 months Structural restrictions on repayments e.g. fixed rate Residual – <1 month repayment buffer Chart does not add due to rounding >6mths to <2yrs Loans ‘on time’ and <1mth ahead 19.0 19.4 19.4 19.4 18.9 Sep-21 Sep-22 Sep-23 Mar-24 Jun-24 Buffer = Current Limit - Outstanding Balance + Offset Balance 41 46 51 53 57 60 60 Sep-19 Sep-20 Sep-21 Sep-22 Sep-23 Mar-24 Jun-24

MORTGAGE DELINQUENCIES (%) MORTGAGE PORTFOLIO LVR1,2 (% OF PORTFOLIO) BUSINESS STRESSED EXPOSURES TO BUSINESS TCE1 (%) UNSECURED CONSUMER DELINQUENCIES (%) NEW ZEALAND CREDIT QUALITY NEW ZEALAND CREDIT QUALITY 1 Chart may not add due to rounding. 2 LVR based on current exposure and property valuation at the latest credit event. 0.47 0.96 0.0 0.5 1.0 1.5 2.0 Jun-22 Dec-22 Jun-23 Dec-23 Jun-24 90+ day delinquencies 30+ day delinquencies 52% 20% 20% 6% 3% 0<=60 60<=70 70<=80 80<=90 90+ 0.1 0.1 0.1 0.2 0.2 0.4 0.3 0.3 0.3 0.5 2.0 2.1 2.2 2.1 2.2 2.4 2.5 2.5 2.5 2.9 Jun-23 Sep-23 Dec-23 Mar-24 Jun-24 Impaired Non-performing, not impaired Watchlist & substandard 0.90 2.03 0.0 1.5 3.0 4.5 6.0 Jun-22 Dec-22 Jun-23 Dec-23 Jun-24 90+ day delinquencies 30+day delinquencies 92% of mortgage portfolio has an LVR less than 80% 11 Westpac Group 3Q24 Investor Discussion Pack Increase driven by agriculture

TERM DEBT ISSUANCE AND MATURITY PROFILE1,2 ($BN) FUNDING AND LIQUIDITY FUNDING AND LIQUIDITY 1 Based on residual maturity and FX spot currency translation. Includes all debt issuance with contractual maturity greater than 13 months excluding US Commercial Paper and Yankee Certificates of Deposit. Contractual maturity date for Additional Tier 1 and callable Tier 2 instruments is the first scheduled conversion date or call date for the purposes of this disclosure. Any early redemption would be subject to prior written approval from APRA, which may or may not be provided. Maturities exclude securitisation amortisation. 2 Year to date is 1 October 2023 to 12 July 2024. 3 Chart may not add due to rounding. 18 12 34 31 35 43 35 36 7 33 34 27 29 21 28 FY19 FY20 FY21 FY22 FY23 FY24 FY24 FY25 FY26 FY27 FY28 FY29 >FY29 Funding for Lending Programme (NZ) Term Funding Facility (Aus) Tier 2 capital Additional Tier 1 capital Covered bond Senior/Securitisation Issuance Maturities 59 14 5 15 7 Senior Bonds Covered Bonds Additional Tier 1 Capital Tier 2 Capital Securitisation 138 134 132 130 Jun-23 Sep-23 Mar-24 Jun-24 KEY FUNDING AND LIQUIDITY MEASURES Liquidity coverage ratio (LCR) (%) Quarterly average 118 115 114 113 Jun-23 Sep-23 Mar-24 Jun-24 Net stable funding ratio (NSFR) (%) 84.1 82.9 82.9 83.3 Jun-23 Sep-23 Mar-24 Jun-24 Customer deposits to net loans ratio (D2L) (%) • Quarterly LCR movement reflects the impact of Term Funding Facility maturities, with lower average net cash outflows more than offset by a reduction in high-quality liquid assets • Lower NSFR reflects growth in lending and increases in required stable funding for mortgages previously used as collateral for Term Funding Facility draw-downs • Increase in D2L ratio due to rate of growth in deposits slightly ahead of loan growth TERM DEBT ISSUANCE BY PROGRAM YEAR TO DATE2,3 (%) $36bn YTD YTD remaining 12 Westpac Group 3Q24 Investor Discussion Pack

Table may not add due to rounding APPENDIX 1: FINANCIAL SUMMARY APPENDIX Excluding Notable Items $b 3Q24 % movement 3Q24 - 1H24 qtr average 3Q24 % movement 3Q24 - 1H24 qtr average Net interest income 4.7 2 4.7 - Non-interest income 0.7 (4) 0.7 (4) Net operating income 5.4 1 5.4 - Operating expenses (2.7) 2 (2.7) 2 Pre-provision profit 2.6 1 2.7 (2) Impairment charges (0.1) (58) (0.1) (58) Tax and non-controlling interests (NCI) (0.8) 4 (0.8) 2 Net profit after tax 1.8 6 1.8 2 Return on equity (ROE) 10.0% 69bps 10.1% 36bps Return on tangible equity (ROTE) 11.3% 79bps 11.4% 42bps 13 Westpac Group 3Q24 Investor Discussion Pack

Table may not add due to rounding APPENDIX 2: NET PROFIT APPENDIX Excluding Notable Items $b 1Q24 2Q24 1H24 qtr average 3Q24 1Q24 2Q24 1H24 qtr average 3Q24 Net interest income 4.3 4.8 4.6 4.7 4.7 4.7 4.7 4.7 Non-interest income 0.7 0.7 0.7 0.7 0.8 0.7 0.7 0.7 Net operating income 5.0 5.5 5.3 5.4 5.4 5.4 5.4 5.4 Operating expenses (2.7) (2.7) (2.7) (2.7) (2.7) (2.7) (2.7) (2.7) Pre-provision profit 2.4 2.8 2.6 2.6 2.7 2.7 2.7 2.7 Impairment charges (0.2) (0.2) (0.2) (0.1) (0.2) (0.2) (0.2) (0.1) Tax and NCI (0.7) (0.8) (0.7) (0.8) (0.8) (0.8) (0.8) (0.8) Net profit after tax 1.5 1.8 1.7 1.8 1.8 1.7 1.8 1.8 ROE 8.3% 10.3% 9.3% 10.0% 9.8% 9.7% 9.8% 10.1% ROTE 9.4% 11.6% 10.5% 11.3% 11.0% 11.0% 11.0% 11.4% 14 Westpac Group 3Q24 Investor Discussion Pack

INVESTOR RELATIONS TEAM – CONTACT US CONTACT US INVESTOR RELATIONS CONTACT SHARE REGISTRY CONTACT For all shareholding enquiries relating to: • Address details and communication preferences • Updating bank account details, and participation in the dividend reinvestment plan For all matters relating to Westpac’s strategy, performance and results 1800 804 255 westpac@linkmarketservices.com.au investorcentre.linkmarketservices.com.au +61 2 9178 2977 investorrelations@westpac.com.au westpac.com.au/investorcentre 15 Westpac Group 3Q24 Investor Discussion Pack Lucy Graham Head of Corporate Reporting and ESG Catherine Garcia Head of Investor Relations, Institutional Arthur Petratos Manager, Shareholder Services Ethan Harry Graduate, Investor Relations Jacqueline Boddy Head of Debt Investor Relations Justin McCarthy General Manager, Investor Relations James Wibberley Manager, Investor Relations Nathan Fontyne Senior Analyst, Investor Relations

DISCLAIMER The material contained in this presentation is intended to be general background information on Westpac Banking Corporation (Westpac) and its activities. The information is supplied in summary form and is therefore not necessarily complete. It is not intended that it be relied upon as advice to investors or potential investors, who should consider seeking independent professional advice depending upon their specific investment objectives, financial situation or particular needs. The material contained in this presentation may include information derived from publicly available sources that have not been independently verified. No representation or warranty is made as to the accuracy, completeness or reliability of the information. All amounts are in Australian dollars unless otherwise indicated. This presentation contains statements that constitute “forward-looking statements” within the meaning of Section 21E of the US Securities Exchange Act of 1934. Forward-looking statements are statements that are not historical facts. Forward-looking statements appear in a number of places in this presentation and include statements regarding our intent, belief or current expectations with respect to our business and operations, macro and micro economic and market conditions, results of operations and financial condition, capital adequacy and risk management, including, without limitation, future loan loss provisions and financial support to certain borrowers, forecasted economic indicators and performance metric outcomes, indicative drivers, climate- and other sustainability-related statements, commitments, targets, projections and metrics, and other estimated and proxy data. We use words such as ‘will’, ‘may’, ‘expect’, ‘intend’, ‘seek’, ‘would’, ‘should’, ‘could’, ‘continue’, ‘plan’, ‘estimate’, ‘anticipate’, ‘believe’, ‘probability’, ‘indicative’, ‘risk’, ‘aim’, ‘outlook’, ‘forecast’, ‘f’cast’, ‘f’, ‘assumption’, ‘projection’, ‘target’, ‘goal’, ‘guidance’, ‘ambition’, or other similar words to identify forward-looking statements, or otherwise identify forward-looking statements. These forward-looking statements reflect our current views on future events and are subject to change, certain known and unknown risks, uncertainties and assumptions and other factors which are, in many instances, beyond our control (and the control of our officers, employees, agents and advisors), and have been made based on management’s expectations or beliefs concerning future developments and their potential effect upon us. Forward-looking statements may also be made, verbally or in writing, by members of Westpac’s management or Board in connection with this presentation. Such statements are subject to the same limitations, uncertainties, assumptions and disclaimers set out in this presentation. There can be no assurance that future developments or performance will align with our expectations or that the effect of future developments on us will be those anticipated. Actual results could differ materially from those we expect or which are expressed or implied in forward-looking statements, depending on various factors including, but not limited to, those described in the section titled ‘Risk factors' in our 2024 Interim Financial Results (Risk Factors) available at www.westpac.com.au. When relying on forward-looking statements to make decisions with respect to us, investors and others should carefully consider such factors and other uncertainties and events. Except as required by law, we assume no obligation to revise or update any forward-looking statements contained in this presentation, whether from new information, future events, conditions or otherwise, after the date of this presentation. We also make statements about our processes and policies (including what they are designed to do) as well as the availability of our systems or product features. Systems, processes and product features can be subject to disruption, and may not always work as intended, so these statements are limited by the factors described in our Risk Factors. DISCLAIMER 16 Westpac Group 3Q24 Investor Discussion Pack