Amazon Business Prime American Express

The Amazon Business Prime American Express is no longer accepting applications, so it matters mainly to existing cardholders. Its strength is 5% back on U.S. purchases at Amazon.com, Amazon Business, AWS, and Whole Foods Market, with no annual fee, on up to $120,000 in spending per year before the rate drops to 1%. That cap is generous enough that most small businesses will never hit it. The rest of the earning is modest: 2% at U.S. restaurants and gas stations and 1% on everything else. For a business that buys heavily from Amazon, it remains a worthwhile card to keep, but everything outside Amazon is better put on a card with a stronger base rate.