Does Citi Double Cash rewards expire?

Yes, Citi Double Cash rewards do expire only if cardholders do not make any purchase or bill payment for 12 months. At the same time, when cardholders close their accounts and forget to redeem their remaining money, the Citi Double Cash rewards expire as well. 

There are a few ways for all cardholders to avoid losing all their cash rewards:

1. Cardholders are recommended to redeem their cash back rewards regularly through a statement credit or direct deposit. Even though this way does not affect the expiration countdown, it prevents you from losing all your potential rewards.
2. Cardholders are recommended to make one purchase every year at least to avoid inactivity. Any purchase will do the job, so you can just spend a few dollars at a supermarket or grocery store.

While Citi Double Cash rewards can expire due to inactivity, cardholders only need to do simple things to avoid their cash rewards getting taken away.