Company: COST
Filing Date: 2025-10-08
Form Type: 10-K
Source: 0000909832-25-000101
Chunk: 60

Company: COSTCO WHOLESALE CORP /NEW
Filing Date: 2025-10-08
Form: 10-K
Item: Item 8
Chunk 60
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Table of Contents

Item 8—Financial Statements and Supplementary Data

COSTCO WHOLESALE CORPORATION

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

PageReports of Independent Registered Public Accounting Firm34Consolidated Statements of Income37Consolidated Statements of Comprehensive Income38Consolidated Balance Sheets39Consolidated Statements of Equity40Consolidated Statements of Cash Flows41Notes to Consolidated Financial Statements42

33

Table of Contents

REPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

To the Stockholders and Board of Directors 

Costco Wholesale Corporation:

Opinion on the Consolidated Financial Statements

We have audited the accompanying consolidated balance sheets of Costco Wholesale Corporation and subsidiaries (the Company) as of August 31, 2025 and September 1, 2024, the related consolidated statements of income, comprehensive income, equity, and cash flows for each of the fiscal years in the three-year period ended August 31, 2025, and the related notes (collectively, the consolidated financial statements). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company as of August 31, 2025 and September 1, 2024, and the results of its operations and its cash flows for each of the fiscal years in the three-year period ended August 31, 2025, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company’s internal control over financial reporting as of August 31, 2025, based on criteria established in Internal Control – Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission, and our report dated October 7, 2025 expressed an unqualified opinion on the effectiveness of the Company’s internal control over financial reporting.

Basis for Opinion

These consolidated financial statements are the responsibility of the Company’s management. Our responsibility is to express an opinion on these consolidated financial statements based on our audits. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance