Our Business Credit Card Ranking Benchmarks: Our Data and Methodology

Most "best business credit card" lists rank cards by their advertised rewards. (And the affiliate commissions the publishers earn!)

We wanted to know what businesses actually earn from rewards. So we analyzed anonymized business-checking transaction data from roughly 5,769 small businesses — 506,801 purchases totaling $79.9 million — broken down by industry and spending category, then modeled what each major business card would return against each industry's real spending mix.

The headline finding: for most businesses, a flat-rate 2% card wins. In a typical small business's budget, about 70% of every dollar falls into categories no business card rewards above 1% — professional and business services, taxes, insurance, rent, utilities, payroll, and inventory. Bonus categories like dining, gas, and travel don't cover enough of the budget for a category card to beat a card paying 2% on everything.

We tested eight business profiles. The Wells Fargo Signify Business Cash (2% unlimited, no annual fee) won all eight: Law firms and consultants: 55–70% of spend is professional and business services that earn no bonus. Travel — the category consultants are usually sold on — is under 1% of spend.

• Construction: spending is scattered, with no category above roughly 20%.
• Restaurants: their highest cost is wholesale food, coded as wholesale rather than "dining," so it earns no dining bonus.
• Retail and ecommerce: inventory dominates and earns nothing. Only Amazon-sourced sellers (via the Amazon Business Prime Card, 5% back) or importers needing no-foreign-transaction-fee cards should deviate.
• Real estate: the most category-friendly profile, thanks to heavy phone spend — yet capped 5% cards still can't beat uncapped 2%.
• Sole proprietors: their spending mirrors the all-business average, landing on the same flat-rate answer.

Cards modeled included the Chase Ink Business Cash, Unlimited, and Preferred; American Express Blue Business Cash, Blue Business Plus, Business Gold, Business Platinum, and Graphite; U.S. Bank Triple Cash and Altitude Connect; Bank of America Business Advantage Customized Cash and Unlimited Cash; Capital One Spark Cash Select, Spark Classic, and Venture Business; and the Chase Sapphire Reserve for Business. Premium travel cards, carrying $375–$795 annual fees, consistently lost to fee-free flat-rate options. We excluded store-only accounts like Home Depot Commercial and the Lowe's business cards, which are financing tools rather than rewards cards.

Limitations. Our data spans a 90-day summer window, so seasonal categories (travel, retail) may be over- or under-stated, and figures are annualized. About 11.6% of spend was uncategorized. Some card-relevant categories are bundled in the source data — fuel sits inside "auto and transportation," internet inside "utilities" — so we estimated the rewardable share. We could not model per-account annual fees or reward caps, which favors fee and category cards; our flat-rate conclusion is therefore conservative. Industry labels are broad, so a few profiles (eCommerce, consultants) rely on close proxies. All card terms are current as of September 2026 and change frequently.