COST Costco Wholesale Corp Fiscal Quarter-End Dates

52/53-week fiscal year
Month-end approximation error: 29 days Extra week absorbed by Q4

“The Company operates on a 52/53-week fiscal year basis with the year ending on the Sunday closest to August 31.”

Costco Wholesale Corp Form 10-K, filed Oct 8, 2025 — SEC EDGAR

Quarter-End Dates

Period Quarter End Days Filing
FY2022 Q3 May 8, 2022 84 10-Q, Jun 2, 2022
FY2022 Q4 Aug 28, 2022 112 10-K, Oct 5, 2022
FY2023 Q1 Nov 20, 2022 84 10-Q, Dec 29, 2022
FY2023 Q2 Feb 12, 2023 84 10-Q, Mar 9, 2023
FY2023 Q3 May 7, 2023 84 10-Q, Jun 1, 2023
FY2023 Q4 Sep 3, 2023 119 10-K, Oct 11, 2023
FY2024 Q1 Nov 26, 2023 84 10-Q, Dec 20, 2023
FY2024 Q2 Feb 18, 2024 84 10-Q, Mar 13, 2024
FY2024 Q3 May 12, 2024 84 10-Q, Jun 6, 2024
FY2024 Q4 Sep 1, 2024 112 10-K, Oct 9, 2024
FY2025 Q1 Nov 24, 2024 84 10-Q, Dec 19, 2024
FY2025 Q2 Feb 16, 2025 84 10-Q, Mar 13, 2025
FY2025 Q3 May 11, 2025 84 10-Q, Jun 5, 2025
FY2025 Q4 Aug 31, 2025 112 10-K, Oct 8, 2025
FY2026 Q1 Nov 23, 2025 84 10-Q, Dec 17, 2025
FY2026 Q2 Feb 15, 2026 84 10-Q, Mar 11, 2026
FY2019 Q4 projected Sep 1, 2019 112 —
FY2026 Q3 projected May ??, 2026 —
FY2026 Q4
FY2027 Q1
FY2027 Q2

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