What Happens to Leftover 529 Funds: Rollover Rules and Roth IRA Conversions

Change the Beneficiary

The simplest fix for leftover 529 money is switching the beneficiary to another family member without any tax or penalty. Eligible new beneficiaries include the original beneficiary's siblings, parents, cousins, aunts, uncles, and even the account owner, as long as the new person fits the IRS definition of a qualifying family member. This move works well when one child gets a full scholarship or finishes school with money still in the account and a younger sibling still needs education funding.

Pay Down Student Loans

You can withdraw up to $10,000 total, over the beneficiary's lifetime, tax free from a 529 account to pay down that beneficiary's own qualified student loans. The law also allows an additional $10,000 lifetime limit for each of the beneficiary's siblings, so a family with multiple 529 accounts and multiple graduates with loans can spread this benefit across each child, according to Saving for College . This $10,000 cap is a lifetime limit, not an annual one, and it applies across all 529 accounts combined for that beneficiary.

Keep documentation for whichever option you choose. Loan payoff withdrawals need proof the money went to a qualified education loan in the beneficiary's name, and the payment needs to happen after the loan already exists rather than as an advance.

Roll Unused Funds Into a Roth IRA

Since 2024, families can roll unused 529 money directly into a Roth IRA owned by the beneficiary, without the usual early withdrawal penalty or income tax on the growth. The lifetime rollover cap is $35,000 per beneficiary, and the 529 account must have been open for at least 15 years before you use this option, according to Fidelity . Contributions made to the 529 within the last five years, and the earnings on those contributions, do not count toward the rollover, and each year's rollover amount still counts against the beneficiary's normal annual Roth IRA contribution limit, set at $7,500 for 2026 for savers under 50.

The Roth IRA receiving the rollover must be in the beneficiary's own name, so a parent cannot redirect a child's unused 529 balance into the parent's own retirement account through this provision.

Save for a Future Family Member

529 accounts have no time limit on when you must spend the money, so leaving funds invested for a future grandchild or a beneficiary's future graduate degree works as a strategy on its own. The account keeps growing tax free the entire time, and you can change beneficiaries again later if plans change.

Grandparent-Owned Accounts

If a grandparent owns the 529 account instead of a parent, the same rollover, student loan payoff, and beneficiary change options apply. Under the current FAFSA formula, distributions from a grandparent-owned 529 no longer count as untaxed student income, so spending down leftover funds from a grandparent's account does not reduce a grandchild's aid eligibility in later years the way it once did.

State Tax Recapture on Non-Qualified Withdrawals

If your state gave you a tax deduction or credit for contributions and you later take a non-qualified withdrawal, the state may require you to add back that deduction on your state tax return for the year of the withdrawal, on top of the federal income tax and 10% penalty on earnings. This recapture rule varies by state, so check your state plan's rules before assuming a non-qualified withdrawal only costs you the federal penalty.

Combining Multiple Options

You do not have to pick one option for leftover funds. A family could use $10,000 toward the original beneficiary's student loans, roll a separate amount into that beneficiary's Roth IRA once the account turns 15 years old, and change the beneficiary on the remaining balance to a younger sibling still in school. Splitting leftover funds across a few of these options often beats taking one non-qualified withdrawal for the full balance.

Take a Non-Qualified Withdrawal

If none of the above options fit, you can withdraw the money for any purpose. You owe ordinary federal income tax plus a 10% penalty, but only on the earnings portion of the withdrawal, not on the amount you originally contributed, since that money already came from after-tax dollars. Some states also add back any state tax deduction you claimed on the contributions. Run the math on the smaller-penalty options above before choosing a straight non-qualified withdrawal, since the tax hit adds up on an account that has grown for many years.

Which Option Makes Sense

Changing the beneficiary works best when another family member has education costs ahead. The student loan payoff option suits a beneficiary who already graduated with debt. The Roth IRA rollover fits families with an older account and a beneficiary who wants a retirement head start instead of more schooling. Compare your specific numbers before deciding, since each option carries its own limits and paperwork.