529 Student Loan Repayment: $10,000 Cap, Timing, and State Rules

You can use a 529 plan for student loan repayment, up to $10,000 in principal or interest per borrower over that borrower’s lifetime, without owing federal income tax or the 10% penalty on the earnings portion. The allowance came from the SECURE Act of 2019 and applies to the account’s designated beneficiary and to each of the beneficiary’s siblings, with a separate $10,000 cap for each person whose loans get paid. A few details around eligible loans, timing, tax reporting, and state conformity decide whether the withdrawal actually stays tax-free.

How the $10,000 Cap Actually Works

The $10,000 is a lifetime ceiling per borrower, not an annual one, and it is cumulative across every 529 account that pays toward that person’s loans.¹ If a parent’s 529 and a grandparent’s 529 both name the same child as beneficiary, distributions from both accounts share a single $10,000 pool for that child’s loans. The statute explicitly reduces the remaining allowance by any amount treated as qualified loan repayment “for all prior taxable years.”²

The IRS has not issued detailed coordination guidance for multiple account owners, so the taxpayer carries the burden of tracking the running total. Go over the $10,000 and the excess becomes a non-qualified distribution: the earnings portion is taxed as ordinary income and hit with the 10% federal penalty.³

Which Student Loans Qualify

Eligibility follows the definition of “qualified education loan” in IRC Section 221(d): a loan taken out solely to pay qualified higher education expenses at an eligible institution.² Federal Direct loans, Stafford loans, and most private student loans from commercial lenders fit. The distribution can cover either principal or interest.

Two categories are out. Loans from a related party, meaning a family member or an entity controlled by the borrower under IRC Sections 267(b) and 707(b)(1), do not count. If a parent lent a child money informally instead of taking a federal PLUS loan, that debt is not eligible. Loans from a qualified employer plan, such as a 401(k) loan, are also excluded.⁴

Keep documentation linking each 529 withdrawal to the specific loan payment it covered. If the IRS questions whether the distribution was qualified, that paper trail is your defense.

Paying a Sibling’s Loans

The cap runs per borrower, which opens real planning room across a family. A 529 can distribute up to $10,000 for the designated beneficiary’s loans and a separate $10,000 for each sibling’s loans. The statute defines siblings to include brothers, sisters, half-siblings, and step-siblings.⁵ Amounts paid toward a sibling’s loans count against that sibling’s lifetime cap, not the original beneficiary’s.²

You can also change the designated beneficiary as often as you like, provided the new beneficiary is a “member of the family,” a term defined broadly to include the current beneficiary’s spouse, parents, stepparents, children, siblings, nieces, nephews, aunts, uncles, first cousins, and the spouses of most of those relatives.² The beneficiary change is itself a non-taxable event.

What About Parent PLUS Loans

This is where the rule trips people up. A federal Parent PLUS loan is legally the parent’s debt, not the student’s. The statute allows 529 distributions for loans “of the designated beneficiary or a sibling,” so a 529 with the child as beneficiary cannot directly pay down a parent’s PLUS loan.

The workaround: because parents qualify as members of the family, the account owner can change the beneficiary to the parent. Once the parent is the designated beneficiary, the account can distribute up to $10,000 toward that parent’s own qualified education loan, PLUS loans included. Each parent gets their own $10,000 cap, so a family with two parents who each borrowed under PLUS could free up $20,000 in tax-free repayment beyond what the student already used.

Timing and How to Move the Money

Take the 529 distribution in the same calendar year as the loan payment it covers. The IRS has not published an explicit matching rule, but the tax reporting structure and general guidance both point that way, and a mismatch risks the withdrawal being treated as non-qualified.

Most plan administrators let you transfer the funds to your bank account or send them to the beneficiary. Direct payment to a loan servicer is not universally available. The cleanest approach is to pull the money to your own bank account, pay the servicer from that account, and hold on to statements that tie the two transactions together.

Tax Reporting and the Student Loan Interest Deduction

The 529 plan administrator will issue Form 1099-Q to you and to the IRS for any year in which a distribution is made, showing the total distribution and breaking out the earnings portion.⁶ The form doesn’t prove the distribution was qualified; you do, with your records.

Now the part people miss: federal law forbids a double tax benefit for the same expense. If tax-free 529 earnings pay part of your student loan interest, that same interest cannot also be claimed under the student loan interest deduction.⁵ Reduce your deductible interest by the amount of interest covered by the tax-free earnings portion of the 529 distribution. The deduction is claimed on Schedule 1 of Form 1040.

In many cases the earnings share of a $10,000 distribution is modest next to the contribution basis, so the deduction hit is small. Run the numbers before assuming the trade-off eats a meaningful chunk of your interest write-off.

Check Your State Before You Withdraw

Not every state has conformed its tax code to the federal SECURE Act change. In a non-conforming state, a 529 distribution used for student loan repayment can be treated as non-qualified at the state level, even though it is fully qualified federally.

The consequences can include state income tax on the earnings portion and recapture of any state deduction or credit you previously claimed on your contributions. Some states also apply their own penalty on non-qualified distributions. If you took a state deduction going in and the state treats the loan-repayment withdrawal as non-qualified, you may owe that benefit back with interest. A handful of states have announced non-conformity outright and others are ambiguous, so confirm with your plan administrator or state tax authority before you pull the money.

If You Have More Left Over Than the Loans

The $10,000 loan cap is not the only exit for extra 529 funds. Under the SECURE 2.0 Act of 2022, starting in 2024 a beneficiary can roll unused 529 money directly into a Roth IRA in their own name.² The rules are strict:

The 529 account must have been open at least 15 years for the beneficiary receiving the rollover.
Contributions made in the last five years, and earnings on them, are not eligible.
The rollover in any year cannot exceed that year’s IRA contribution limit minus any other IRA contributions the beneficiary made. For 2026 the standard IRA limit is $7,500.⁷
Total 529-to-Roth rollovers for any one beneficiary cannot exceed $35,000 across all years.
The transfer must move directly from the 529 to the Roth IRA, trustee to trustee.

Under current interpretations of the statute, Roth IRA income limits do not apply to these rollovers, though the beneficiary needs earned income at least equal to the amount rolled. Combined with the $10,000 loan-repayment allowance, a family can redirect up to $45,000 of leftover 529 funds without triggering federal tax.

1
Internal Revenue Service. Topic No. 313, Qualified Tuition Programs (QTPs)
2
Office of the Law Revision Counsel. 26 USC 529 – Qualified Tuition Programs
3
Internal Revenue Service. 529 Plans: Questions and Answers
4
Office of the Law Revision Counsel. 26 US Code 221 – Interest on Education Loans
5
Internal Revenue Service. Publication 970 (2025), Tax Benefits for Education
6
Internal Revenue Service. Instructions for Form 1099-Q (Rev. April 2025)
7
Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026; IRA Limit Increases to $7,500