So, until 4/1/2016, perhaps the best card to use at Costco is the Fidelity AmEx for 2%. (I never understood why people were so hot on their TrueEarnings Card from Costco and American Express which only earned 1% at Costco.)

Starting April 1st of 2016, some of the best cards to use at Costco will be:

1. BankAmericard Travel Rewards Visa which can earn 2.625% toward travel if you qualify for Bank of America’s Preferred Rewards Platinum Honors status. (Or 2.25% with Platinum status or 1.875% with Gold status or 1.5% with no Preferred Rewards status.)

2. Capital One Venture Visa which earns 2% toward travel.

3. U.S. Bank FlexPerks Travel Rewards Visa Signature card which earns about 1.66% toward travel on spending at Costco and about 3.32% on cell phone as well as either gas, grocery stores, or airfare, whichever you spend the most on each month.

4. Capital One Quicksilver Visa which earns 1.5% cash back.

You might also want to try the reward calculator at CreditCardTuneUp. com to see which Visa cards will earn you good rewards for your Costco spending and other expenses. The calculator factors in bonuses and annual fees as well.