Is there an age limit by which the funds of a Coverdell ESA must be used?

Yes. In most cases, funds in a Coverdell Education Savings Account (ESA) must be used before the beneficiary reaches age 30. Any remaining balance generally must be distributed within 30 days after the beneficiary turns 30, unless the beneficiary has special needs. Remaining funds may also be transferred to another eligible family member's Coverdell ESA.