Is Costco Wholesale (COST) Halal?
Screener: Yes — Costco Wholesale passes Shariah screening as of October 2026. Its business is halal, its debt is 1.41% of market cap, and its interest income is 0.19% of revenue. Below: the full screening math, the question every investor asks, and the caveats that could change the answer.
Screen 1: Business activity
Costco Wholesale Corporation operates membership warehouse clubs selling groceries, household goods, electronics, and more, plus e-commerce. Revenue comes from merchandise sales and membership fees ($4.1B in the first 36 weeks of FY2026). None of its core businesses are in prohibited industries (alcohol, gambling, conventional finance, weapons, adult entertainment, non-halal food).
The nuance everyone asks about: the Costco credit card. The Costco Anywhere Visa is issued by Citibank — Citi is the lender and keeps the interest. Costco is not the lender, and its 10-Q shows no lending revenue; its income lines are net sales and membership fees.
Screen 2: Financial ratios
AAOIFI-style screening applies three ratio tests:
| Ratio | Costco Wholesale (Oct 2026) | Ceiling | Result |
|---|---|---|---|
| Total debt ÷ market cap | 1.41% ($5.7B total long-term debt (including $1M current portion) on $403.7B market cap) | < 33% | PASS |
| Cash + short-term investments ÷ market cap | 4.95% ($20.0B (cash $18,946M + short-term investments $1,050M) on $403.7B market cap) | < 33% | PASS |
| Non-compliant income ÷ total revenue | 0.19% ($392M interest income on $207,431M total revenue (36 weeks ended May 10, 2026)) | < 5% | PASS |
Figures: Q3 FY2026 10-Q (filed June 3, 2026) for revenue, debt, and cash (36 weeks ended May 10, 2026); market data September 30, 2026 close ($403.7B market cap at $910.34/share on 443.5M outstanding as of May 10, 2026).
Screen 3: Purification
Costco pays a quarterly dividend ($1.47/share declared April 15, 2026). With non-compliant income at 0.19% of revenue, the purification amount on that dividend is small — but if you follow a strict methodology, run any dividends through our purification calculator.
What could change the screener
- A business-mix shift into financial services. If Costco ever became a lender itself (rather than partnering with Citibank) at meaningful scale, the business-activity screen would need re-examination.
- A debt-funded mega-acquisition. At 1.41%, Costco has enormous headroom — but a very large debt raise would be worth re-checking.
- Rising interest income. Currently 0.19%; a large and growing cash pile earning interest would show up in the 5% income screen first.
We re-screen on a quarterly cadence — the screener above reflects the latest SEC filing and September 30, 2026 market data.
How Canadians buy it
Costco Wholesale trades only on the NASDAQ as COST — there is no TSX listing, so you buy in USD. To convert cheaply, use Norbert's gambit on Questrade rather than paying a broker's conversion spread. COST is available through Questrade and Wealthsimple's self-directed accounts, and it can be held in a TFSA, RRSP, or FHSA — all wrappers are neutral to Shariah compliance. See our Questrade vs Wealthsimple comparison for the practical differences.
Screened with our two-gate Shariah screening methodology (business-activity gate, then AAOIFI-style financial ratios).
FAQ
Is Costco halal to invest in?
As of October 2026: yes, it passes Shariah screening — a halal warehouse-retail business, 1.41% debt ratio, 0.19% interest income. This is a screening result, not a religious ruling.
What about the Costco credit card — doesn't that make Costco a lender?
No. The Costco Anywhere Visa is issued by Citibank; Citi is the lender and keeps the interest. Costco earns from merchandise margins and membership fees — its 10-Q shows no lending revenue, and screeners classify it as a retailer, not a financial company.
Do I need to purify Costco's dividend?
Costco pays a quarterly dividend ($1.47/share declared April 15, 2026). With non-compliant income at 0.19% of revenue, the purification amount on it is small — but if you follow a strict methodology, you can run any dividends through a purification calculator.
Costco carries about $5.7 billion in debt — doesn't that fail the debt screen?
The screen compares debt to market value, not to zero. Costco's ~$5.7B in total debt is about 1.41% of its ~$403.7B market cap — far under the 33% ceiling. The absolute number sounds large; the ratio is what the methodology measures.