Earlier this summer, costco switched to visa from american express, meaning they now only accept visa in their stores. Verkkoyou’ll get 2% back on purchases at costco and costco. com, but the signature appeal of this card is that it turns your other spending into rewards you can use at costco. Verkkocostco members can earn cash back rewards with a costco anywhere visa ® card by citi. Here’s what qualified cardmembers can expect on eligible purchases: Verkkoearn costco cash back rewards with the costco anywhere visa ® card anywhere visa ® is accepted, with the costco anywhere visa® card by citi.