Funds left over from a coverdell education savings account after all expenses are paid go back to whom?

If there are funds remaining in a Coverdell Education Savings Account (ESA) after all qualified education expenses are paid, the funds remain in the account. They don't go back to the contributor or anyone else. However, the account must be closed or the funds must be rolled over into a different beneficiary's ESA (meeting the beneficiary's age requirements) otherwise the funds may be subject to taxes and penalties.