Why do some grocery cards exclude Costco and Walmart?

Issuers categorize merchants by Merchant Category Codes (MCC). Costco and Walmart are coded as warehouse clubs and superstores, not supermarkets. To get bonus rewards at Costco, you need a Costco co-brand or a card that explicitly includes warehouse clubs.

Are online grocery orders eligible for the bonus rate?

Usually yes if you order from a grocery store's own site (Kroger, Safeway, Whole Foods). They're often coded as the same merchant. Third-party delivery apps like Instacart may be coded differently and might not earn the grocery bonus.

Is CardPilot really free?

Yes. CardPilot is 100% free. There are no accounts, paywalls, or premium tiers. The full calculator and every recommendation is available to everyone.

Does CardPilot affect my credit score?

No. CardPilot only does math on your spending. We never request a credit pull or share your information with issuers. Applying for a card on the issuer's website is a separate action that may affect your score.

Is this financial advice?

No. CardPilot provides educational comparisons and estimates. It is not financial, legal, tax, credit, lending, or banking advice, and it does not guarantee approval. Always verify terms with the issuer before applying.

Best Credit Cards for Groceries

Last updated: May 2026

Groceries are the single largest discretionary category for many U.S. households — frequently $500 to $1,200 per month. A high grocery multiplier can make a real, recurring difference: a 6% grocery card on $800/month is roughly $576 a year if you stay under the cap, versus $192 on a 2% flat card.

The catch is caps and exclusions. Many "grocery" cards exclude warehouse clubs (Costco, Sam's Club) and superstores (Walmart, Target). CardPilot models the cap and exclusions for every card. Run the grocery rewards calculator for a personalized list.

What counts as a grocery store?

Most issuers define groceries as standalone supermarkets that primarily sell food: Kroger, Safeway, Publix, Whole Foods (some issuers exclude Whole Foods or treat it specially), Trader Joe's, and most regional chains. Excluded by most: Costco, Sam's Club, Walmart, Target, and meal kits.

If your household shops mostly at Costco, you'll get more value from a Costco-friendly card (a flat-rate cash back or a Costco co-brand) than from a high-multiplier supermarket card that excludes warehouse clubs. CardPilot has an explicit "shops at Costco" preference that nudges the recommendation accordingly.

Caps that change the math

Many top grocery cards cap their bonus rate at $6,000/year (some at $25,000/year on premium cards). Above the cap, the rate typically falls to 1%.

Stress-test the math: if your grocery spend is $1,000/month ($12,000/year), a 6% card capped at $6,000 returns $360 on the first $6,000 plus $60 on the second $6,000 — total $420. A flat 2% card returns $240. The 6% card still wins, but by less than the headline rate suggests.

Annual fees on grocery cards

The strongest grocery cards charge a $95–$250 annual fee. To pay off, the fee card needs to out-earn the best comparable free card by more than the fee. CardPilot does this comparison on every results screen.

If your grocery spend is small (say, under $300/month), a no-fee 3% card or a flat 2% card almost always wins on net value. Save the fee cards for households with bigger grocery bills.

Combining a grocery card with a backbone card

Even the best grocery card pays only 1% on non-grocery spend. Pair it with a flat 2% or higher backbone card and you cover everything else. CardPilot's combo finder will assign each category to the right card in the combo automatically.

See best cash back credit cards for backbone options and best travel cards if you'd rather earn transferable points on groceries.

Frequently asked questions

Why do some grocery cards exclude Costco and Walmart?: Issuers categorize merchants by Merchant Category Codes (MCC). Costco and Walmart are coded as warehouse clubs and superstores, not supermarkets. To get bonus rewards at Costco, you need a Costco co-brand or a card that explicitly includes warehouse clubs.
Are online grocery orders eligible for the bonus rate?: Usually yes if you order from a grocery store's own site (Kroger, Safeway, Whole Foods). They're often coded as the same merchant. Third-party delivery apps like Instacart may be coded differently and might not earn the grocery bonus.
Is CardPilot really free?: Yes. CardPilot is 100% free. There are no accounts, paywalls, or premium tiers. The full calculator and every recommendation is available to everyone.
Does CardPilot affect my credit score?: No. CardPilot only does math on your spending. We never request a credit pull or share your information with issuers. Applying for a card on the issuer's website is a separate action that may affect your score.
Is this financial advice?: No. CardPilot provides educational comparisons and estimates. It is not financial, legal, tax, credit, lending, or banking advice, and it does not guarantee approval. Always verify terms with the issuer before applying.

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Disclaimer: CardPilot provides estimates based on publicly available rewards structures and simplified assumptions. Credit card terms, fees, rewards, APRs, benefits, and offers change frequently. Always verify details with the issuer before applying. This is not financial, legal, tax, credit, lending, or banking advice. See our disclaimer.