You can use a 529 plan to pay student loans, up to a lifetime limit of $10,000 per borrower, and the distribution comes out tax-free at the federal level. Both federal and private student loans qualify, and the same benefit extends separately to each sibling of the account’s beneficiary. A few rules shape how far that money goes: a cap that follows the borrower rather than the account, restrictions on what counts as a qualifying loan, and a prohibition on claiming two tax breaks for the same interest payment.
The $10,000 Per-Borrower Lifetime Cap
Federal law caps the total amount of 529 money that can be applied to any one person’s student loans at $10,000 across their lifetime.1Office of the Law Revision Counsel. 26 USC 529 – Qualified Tuition Programs – Section 529(c)(9)(B) This is cumulative, not annual. Once a borrower has received $10,000 in 529 distributions for loan repayment, any further distributions for that purpose are non-qualified, and the earnings portion becomes subject to federal income tax plus an additional 10% tax.
The cap tracks the borrower, not the account. If a grandparent’s 529 plan and a parent’s 529 plan both send money toward the same person’s loans, every dollar counts against that borrower’s single $10,000 limit. Families with more than one 529 account for the same beneficiary need to coordinate withdrawals to avoid tipping over the cap.
Which Student Loans Qualify
To be tax-free, the distribution has to go toward a “qualified education loan” as defined in Internal Revenue Code Section 221(d). That means the loan was taken out solely to pay higher education costs — tuition, fees, room and board, books, and similar expenses — at an eligible institution.2Legal Information Institute. 26 USC 221(d)(1) – Definition of Qualified Education Loan
Private loans qualify alongside federal ones, as long as the borrower used the funds for eligible education expenses and the lender is not a relative.3eCFR. 26 CFR 1.221-2 – Deduction for Interest Due and Paid on Qualified Education Loans Refinanced student loans also qualify, because the statute expressly covers debt used to refinance an otherwise qualifying education loan.2Legal Information Institute. 26 USC 221(d)(1) – Definition of Qualified Education Loan
Loans that do not qualify include borrowing from a relative, loans from a qualified employer plan such as a 401(k) loan, and personal loans or credit card balances used to cover school costs. If the loan was not taken out solely to pay qualified higher education expenses — for example, a general-purpose personal loan that happened to cover some tuition — it falls outside the definition.
Parent PLUS Loans
Parent PLUS loans belong to the parent, not the student. Since the $10,000 benefit applies to loans owed by the account’s designated beneficiary, a parent cannot pull funds from a 529 that names the child and send them to a Parent PLUS servicer as a qualified distribution. The workaround is to change the beneficiary from the child to the parent. Parents count as “members of the family” under Section 529, so the change itself carries no tax consequences.4Internal Revenue Service. 529 Plans: Questions and Answers Once the parent is the named beneficiary, they can take up to $10,000 in tax-free distributions toward their own student loans, including Parent PLUS debt. This uses the parent’s own $10,000 lifetime allowance, and while the parent is the beneficiary, distributions no longer count toward the child’s education expenses.
Siblings and Other Family Members
The benefit is not limited to the person named on the account. Under Section 529(c)(9), tax-free distributions can go toward the student loans of a sibling of the designated beneficiary, and “sibling” includes brothers, sisters, stepbrothers, and stepsisters.5Office of the Law Revision Counsel. 26 USC 529 – Qualified Tuition Programs – Section 529(c)(9) Each sibling gets a separate $10,000 lifetime cap. A single 529 account with enough money could pay $10,000 toward the beneficiary’s loans and another $10,000 toward each sibling’s loans without changing the account’s beneficiary at all.
Account owners can also formally change the named beneficiary to reach other relatives. The statute defines “member of the family” broadly, and no tax consequences apply when the new beneficiary is a qualifying family member.6Office of the Law Revision Counsel. 26 USC 529 – Qualified Tuition Programs – Section 529(e)(2)4Internal Revenue Service. 529 Plans: Questions and Answers A family with several children and money left in one 529 could rotate the beneficiary designation to help each child use their own $10,000 loan repayment allowance.
You Cannot Double Up With the Student Loan Interest Deduction
The IRS does not allow two tax benefits on the same interest payment. If you use a 529 distribution to pay student loan interest, you cannot also deduct that interest through the student loan interest deduction. The statute reduces the otherwise allowable interest deduction by the amount of 529 distributions used for loan repayment that would have been taxable but for the Section 529(c)(9) exclusion.7Office of the Law Revision Counsel. 26 USC 221 – Interest on Education Loans – Section 221(e)(1)
For most borrowers, the tax-free 529 distribution comes out ahead. The student loan interest deduction is capped at $2,500 a year and phases out at higher incomes. If your remaining 529 balance is small and your annual interest payments are large, compare the two before requesting a distribution. You can also split the difference: use 529 money for part of your interest and claim the deduction on the rest. The offset applies only to the portion covered by the 529 withdrawal.
State Tax Treatment Varies
Federal law treats a 529 distribution for student loan repayment as tax-free, but not every state has aligned its tax code with the federal rule. In a non-conforming state, a loan repayment withdrawal may be treated as a non-qualified distribution for state income tax purposes. Two things can happen: the state taxes the earnings portion, and if you previously received a state deduction or credit for your contributions, the state may recapture that benefit.
If you live in a state with an income tax, confirm your state’s treatment before requesting a distribution. Your plan administrator or state tax agency can tell you where the state stands. Even in a non-conforming state, the federal tax break still applies — only the state-level treatment is at risk.
How to Request the Distribution
Contact your 529 plan administrator and request a withdrawal designated for student loan repayment. Most plans let you choose among an electronic transfer to your bank, a check mailed to the account owner or beneficiary, or in some cases a direct payment to the loan servicer. Sending funds straight to the servicer is the cleanest way to make sure the money lands on the right loan, though not every plan offers that option for loan payments.
Expect the plan to ask for:
- The loan servicer’s name and payment address or electronic payment details
- The borrower’s loan account number
- The dollar amount to withdraw
- The borrower’s name and, for a sibling’s loan, their relationship to the beneficiary
After the payment reaches the servicer, it is applied under the servicer’s standard allocation rules, typically to outstanding fees and interest before principal. Check the loan account to confirm the payment posted correctly, and hold onto the confirmation for your tax records.
Tax Reporting
Your 529 administrator will issue IRS Form 1099-Q for the year of the distribution, showing the total gross amount.8Internal Revenue Service. Instructions for Form 1099-Q The form does not identify the withdrawal as a loan repayment. It is your responsibility to report that the distribution went to a qualified expense. Keep the loan payment confirmation alongside the 1099-Q so you can show that the withdrawal matched a qualifying loan payment if the IRS asks.
If You Have Leftover 529 Funds After the $10,000 Cap
Families with money still in a 529 after using the loan repayment allowance have another option. The SECURE 2.0 Act of 2022 permits a rollover of unused 529 funds into a Roth IRA in the beneficiary’s name for distributions made after December 31, 2023.9Internal Revenue Service. Publication 590-A, Contributions to Individual Retirement Arrangements (IRAs) The rules:
- The 529 account must have been open for more than 15 years.
- Total rollovers cannot exceed $35,000 per beneficiary over their lifetime.
- Each year’s rollover cannot exceed the Roth IRA annual contribution limit, which is $7,500 for 2026.10Internal Revenue Service. 401(k) Limit Increases to $24,500 for 2026, IRA Limit Increases to $7,500
- Contributions (and earnings on them) added to the 529 within the five years before the distribution date cannot be rolled over.
- The rollover has to be a direct trustee-to-trustee transfer to a Roth IRA in the beneficiary’s name.
At the maximum annual pace, it would take roughly five years of rollovers to reach the $35,000 lifetime cap. The loan repayment benefit and the Roth IRA rollover are not mutually exclusive; you can use both, each within its own limits.