Costco raises gas cash back to 5% for cardholders at its own stations.

Costco has quietly raised cash back rewards on gas purchases at its own stations to 5% for holders of the Costco Anywhere Visa Card, up from 4%, with the change applying only to fuel bought at Costco-owned pumps. The update, not widely publicized, does not affect rewards for other purchases or gas bought elsewhere. The adjustment aims to boost card usage at Costco locations.