The rewards rate is the number everyone compares. It's rarely the number that determines whether a card actually pays off for your business.

Business credit card comparisons tend to start and end with the headline rewards rate — cash back or points per dollar spent. That number matters, but it only tells part of the story, because it's applied against your actual spending pattern, not against a generic average.

Match the card to your spending, not the other way around

Cards with elevated rewards in specific categories — office supplies, gas, travel — are only worth chasing if that category reflects where your business genuinely spends money. A card offering 3% back on travel is worse than a flat 1.5% card for a business that spends almost nothing on travel and everything on inventory and shipping. Pulling a few months of actual spending by category before comparing cards is worth the ten minutes it takes.

The annual fee math

Premium business cards often carry annual fees in the hundreds of dollars, justified by higher rewards rates and added perks like travel insurance or airport lounge access. Whether that trade is worth it comes down to simple math: multiply your rewards rate difference by your annual spend, and check whether that gap actually clears the fee, rather than assuming a higher rewards rate automatically wins.

What else to check

Beyond rewards, look at whether the card offers free employee cards with individual spending limits — useful once you have staff making purchases — and whether it integrates with your accounting software for automatic expense categorization. A card that saves bookkeeping time every month can be worth more in practice than a marginally better rewards rate.