Costco Wholesale (COST) Earnings: Q4 Fiscal 2026 Results and Next Report Date

The quarter ended August 30, 2026 and Costco published the results on September 24, 2026. Revenue and diluted EPS are shown against Q4 fiscal 2025, the same quarter a year earlier, which takes seasonal swings out of the comparison.

• Costco's fiscal year has 52 or 53 weeks and ends on the Sunday nearest the end of August. The fourth quarter has 16 weeks and the first three have 12 each, so Q4 revenue is larger than the other quarters in the table below for calendar reasons.
• Costco said Q4 fiscal 2026 EPS included a non-recurring benefit of $0.15 per diluted share from IEEPA tariff refunds, less partial reinvestment of those refunds in increased member values.

Source: Costco Q4 fiscal 2026 earnings release, September 24, 2026. Also in the Form 10-K for the fiscal year ended August 30, 2026. Figures as reported; checked against the release on November 10, 2026.

How Costco splits revenue in its own release, under its own labels, for Q4 fiscal 2026 against Q4 fiscal 2025. Indented lines are parts of the line above them.

• Costco's Net sales revenue was $93.9 billion in Q4 fiscal 2026, up 11% from $84.4 billion in Q4 fiscal 2025, 98% of total revenue.
• Costco's Membership fees revenue was $1.9 billion in Q4 fiscal 2026, up 7% from $1.7 billion in Q4 fiscal 2025, 2% of total revenue.

Segment lines are the figures writers cite most often, because they show where the growth in a quarter came from. Companies redraw their segments from time to time and restate the prior year to match, so a year-ago figure here can differ from the one printed a year ago. When that has happened, the note above says so.

Revenue and diluted EPS for the last 5 quarters. Each date links to that quarter's release.

Total revenue (net sales plus membership fees) and GAAP diluted EPS, each as first reported in that quarter's release. Fourth quarters cover 16 weeks and the others 12, so compare a quarter with the same quarter a year earlier.

Costco's next report is scheduled for December 10, 2026. This page will show Q4 fiscal 2026 until those results are out and have been checked against the release.

Each quarter keeps its own page with the figures as reported, so a link to one stays pointed at the same numbers after the next report.

• Q4 fiscal 2026 (this page), reported Sep 24, 2026

Costco's total revenue of $95,723 million in Q4 fiscal 2026 was $93,873 million of net sales and $1,850 million of membership fees. Net sales rose 11.2 percent from $84,432 million a year earlier. The quarter covers the 16 weeks ended August 30, 2026. (Costco Q4 fiscal 2026 earnings release, Sep 24, 2026)

Costco's total company comparable sales rose 9.4% in the quarter, or 6.7% excluding the impacts of gasoline prices and foreign exchange. U.S. comparable sales rose 10.7% (7.2% adjusted), Canada 5.0% (4.6% adjusted) and Other International 7.0% (6.2% adjusted). Digitally-enabled comparable sales rose 19.5%. (Costco Q4 fiscal 2026 earnings release, Sep 24, 2026)

By merchandise category, Costco's fiscal 2026 net sales of $297,247 million were Foods and Sundries $116,788 million, Non-Foods $77,375 million, Fresh Foods $41,715 million and Warehouse Ancillary and Other Businesses $61,369 million. Gasoline was 11% of total net sales, and higher gasoline prices added $3,501 million, or 130 basis points, to net sales for the year. Costco said comparable sales were helped by increases of 5% in average ticket and 3% in shopping frequency. (Costco Form 10-K, fiscal 2026, Oct 7, 2026)

Costco's United States segment produced $219,823 million of fiscal 2026 total revenue of $303,154 million, Canada $40,561 million and Other International $42,770 million. At the time of the Q4 release Costco operated 939 warehouses, 647 of them in the United States and Puerto Rico and 115 in Canada. (Costco Form 10-K, fiscal 2026, Oct 7, 2026; Costco Q4 fiscal 2026 earnings release, Sep 24, 2026)

Costco's membership fee revenue was $5,907 million for fiscal 2026, up 11%, which it attributed to new member sign-ups, membership fee increases and upgrades to Executive membership. Paid members were 84,100 thousand at the end of fiscal 2026, against 81,000 thousand a year earlier, and sales to Executive members were about 75.2% of worldwide net sales. (Costco Form 10-K, fiscal 2026, Oct 7, 2026)

Costco reports one EPS figure, GAAP diluted, with no adjusted measure. Q4 fiscal 2026 diluted EPS was $6.75, against $5.87 a year earlier, on net income of $2,998 million. Costco said the quarter included a non-recurring benefit of $0.15 per diluted share from IEEPA tariff refunds received in the quarter, less partial reinvestment of those refunds in increased member values. (Costco Q4 fiscal 2026 earnings release, Sep 24, 2026)

Costco's 10-K says it paid about $500 million in IEEPA tariffs. After the U.S. Supreme Court ruled those tariffs unlawful in February 2026, Costco received $184 million during fiscal 2026, of which $174 million was refunds recorded as a reduction to merchandise costs and $10 million was interest income. It received $155 million more after the year ended. (Costco Form 10-K, fiscal 2026, Oct 7, 2026)

Costco's share count was nearly unchanged: diluted shares were 444,364 thousand in the quarter against 444,706 thousand a year earlier. Costco repurchased 891,000 shares for $847 million in fiscal 2026 and paid $2,458 million in dividends, and its quarterly dividend is $1.47 per share. The effective tax rate for fiscal 2026 was 24.7%, against 25.1% in fiscal 2025. (Costco Q4 fiscal 2026 earnings release, Sep 24, 2026; Costco Form 10-K, fiscal 2026, Oct 7, 2026)

Diluted EPS divides net income by the weighted average number of shares outstanding in the quarter, plus the shares that options and other equity awards could add. Buybacks shrink that count and lift EPS for the same profit; share issuance and stock awards enlarge it.

Costco does not publish a revenue or EPS outlook in its earnings release. The Q4 fiscal 2026 release reports results and comparable sales and points to a conference call on September 24, 2026, webcast on investor.costco.com. (Costco Q4 fiscal 2026 earnings release, Sep 24, 2026)

Costco's 10-K states two forward items: it intends to invest the majority of its IEEPA refunds, including the $155 million received after year end, in increased value for members, and its $4,000 million repurchase authorization expires in January 2027, with $1,115 million remaining at the end of fiscal 2026. (Costco Form 10-K, fiscal 2026, Oct 7, 2026)

A consensus figure is the average of the models published by the analysts who cover Costco, collected by a data provider and revised up to the day of the report. A quarter that lands above it says how expectations were set as much as how the business did, and the share price on the day also reflects the guidance and the lines no consensus covers.

The consensus figures on this page are Yahoo Finance's, as pulled on the date shown. Each comes with the number of analysts behind it; the smaller that number, the more one revised estimate can move the average.

The figures below are the ones Costco's own release and filings put weight on for Q4 fiscal 2026, with the latest reported value for each.

What the quarter means for a holding is a separate question from what it reported. The case for and against owning COST is on is COST a buy or a sell?, what analysts expect next is on the COST forecast, and what the company does is on the Costco Wholesale (COST) stock page.

Every number on this page can be traced to a document Costco published. Checking one takes a couple of minutes, and it is worth doing before you quote a figure anywhere.

• The results release is the document linked in the source line above. Companies publish it on their investor relations site at the moment results go out, and it carries the headline tables: revenue, operating income, net income and EPS for the quarter and the year-ago quarter.
• The same release is filed with the SEC as Exhibit 99.1 to a Form 8-K under Item 2.02, usually on the day of the report. The SEC copy does not change after the fact, which makes it the safer thing to link when you cite a number.
• The quarterly report (Form 10-Q) follows within a few weeks and carries the full financial statements, the segment note and management's discussion of what changed. The fourth quarter is covered by the annual report (Form 10-K) instead.
• Restated comparisons are flagged in the notes on this page. When a company redraws its segments or changes how it adjusts EPS, it restates the year-ago column, so the year-ago figure in a new release can differ from the one printed a year ago. This page always uses the comparison in the newer release, because that is the like-for-like one.

A walk-through of every line in a release, with what each one tells you, is in how to read an earnings report.