For paid Creator, Pro and Enterprise subscribers, unused credits roll over into the next month, if you remain a paid subscriber.

Note that credits only carry over for one month only, and not after that. For example: 

• Month 1: Customer receives 100 new Credits, uses 90, and carries over 10 to Month 2. 

• Month 2: Customer receives 100 new Credits, carried over 10 from Month 1, totaling 110 Credits available. Uses 90 Credits, leaving 20 Credits unused, 10 of which can roll over to Month 3 (as the 10 credits carried over from Month 1 will expire in Month 3).

• Month 3: Customer receives 100 new Credits, carries over 10 from Month 2, totaling 110 Credits available. Uses 90 Credits, leaving 20 Credits unused of which only 10 from Month 2 can roll over to Month 4. 

Credits do not roll over into the free month after you cancel your subscription.

For users on the free Starter plan, unused credits do not roll over into the next month.