A 529 plan is a state-sponsored savings account designed to make education expenses more affordable through federal and sometimes state tax advantages. You contribute after-tax dollars, the money grows tax-free, and withdrawals are tax-free when used for qualified expenses. The account is named for Section 529 of the Internal Revenue Code.
529s have expanded well beyond traditional four-year college costs. As of 2026, they cover graduate school, community college, vocational programs, K-12 tuition, student loan repayment, and — through a SECURE 2.0 provision — can eventually be rolled into a Roth IRA if the money goes unused.
What counts as a qualified expense
The IRS defines qualified education expenses broadly (IRS Tax Topic 313):
| Expense type | Eligible? | Notes |
|---|---|---|
| College tuition and fees | Yes | At accredited institutions |
| Room and board | Yes | If enrolled at least half-time |
| Books, supplies, equipment | Yes | Required for enrollment |
| K-12 tuition | Yes | Up to $20,000/year per beneficiary (IRS TC313; increased from $10,000 before Dec. 31, 2025) |
| Student loan repayment | Yes | Up to $10,000 lifetime per borrower or sibling |
| Computers and internet | Yes | If used primarily for school |
| Special needs services | Yes | Eligible beneficiaries |
| Apprenticeship programs | Yes | Registered with Department of Labor |
The K-12 limit doubled from $10,000 to $20,000 for distributions after December 31, 2025, per IRS Tax Topic 313, expanding access for families paying private school tuition.
How contributions work
There are no annual contribution limits set by the IRS, but 529 contributions are considered gifts and subject to gift tax rules. The 2025 annual gift tax exclusion is $19,000 per donor per beneficiary (IRS Form 709 Instructions, 2025) — a single person can contribute up to $19,000 per year without gift tax reporting; a married couple filing jointly can contribute up to $38,000.
Superfunding (the 5-year election): You can make a lump-sum contribution of up to $95,000 ($190,000 for a married couple) and elect to spread it across five years for gift tax purposes ($19,000 × 5 years). This lets you fund a large balance early and maximize tax-free compounding. The election is made on IRS Form 709, Schedule A. Per IRS Form 709 Instructions, if the donor dies during the 5-year period, the unallocated portion is brought back into the taxable estate.
Each state sets its own aggregate (lifetime) contribution limit per beneficiary — the maximum total balance the account can hold before new contributions are blocked. According to savingforcollege.com, limits range from around $235,000 to over $600,000 depending on the state. Investment returns can push the balance above the limit without penalty; only new contributions are restricted. You can open accounts in multiple states for the same beneficiary.
Investment options
Most 529 plans offer three types of investments:
- Age-based portfolios — Automatically shift from higher-equity to more conservative allocations as the beneficiary approaches college age. Most popular choice for hands-off investors.
- Static portfolios — Fixed allocation regardless of the child’s age. Useful if you want to control the glide path yourself.
- Individual fund options — Select specific underlying funds (often low-cost index funds) to build a custom allocation.
The IRS allows only two investment option changes per calendar year, or when the beneficiary changes.
SECURE 2.0: rolling unused funds to a Roth IRA
If the beneficiary doesn’t use all the 529 money for education, a 2024-effective SECURE 2.0 provision allows rolling up to $35,000 lifetime into a Roth IRA in the beneficiary’s name. All five conditions must be met:
- The 529 account has been open for at least 15 years
- Only contributions (and their earnings) made at least 5 years before the rollover are eligible
- The rollover is capped at the Roth IRA annual contribution limit each year ($7,000 in 2025 per IRS; irs.gov/newsroom/401k-limit-increases-to-23500-for-2025-ira-limit-remains-7000)
- The Roth IRA must be in the same beneficiary’s name
- No income limits apply to this rollover — IRS TC313 explicitly states the rollover is not subject to modified AGI limits that apply to regular Roth IRA contributions
At $7,000/year, rolling the full $35,000 takes a minimum of five years.
What if the money goes unused
Non-qualified withdrawals are subject to:
- 10% federal penalty on earnings only (not contributions, which were already after-tax)
- Ordinary income tax on those earnings
- Possible state income tax on earnings as well
However, the penalty is waived in several situations: if the beneficiary receives a tax-free scholarship (penalty waived up to the scholarship amount), dies, becomes disabled, attends a U.S. Military Academy, or uses employer-provided educational assistance.
Better alternatives to taking a non-qualified withdrawal:
- Change the beneficiary to another eligible family member — siblings, cousins, parents, even the account owner. Changing to a family member in the same or higher generation is typically free of gift and generation-skipping transfer (GST) tax consequences; changing to a lower generation may have tax implications.
- Keep the account open indefinitely — there’s no required distribution date or deadline to use the funds.
- Use the SECURE 2.0 Roth rollover after 15 years.
State tax deductions
Most states offer a state income tax deduction or credit for contributions to their own state’s 529 plan. A handful of states offer a deduction for contributions to any state’s 529 plan. This benefit varies significantly by state — check your state’s department of revenue for current limits before choosing a plan.
Choosing a plan
You’re not required to use your home state’s plan. Families often choose based on:
- State tax deduction available (if any) for your state’s residents
- Investment options and underlying fund expense ratios
- Account fees and administrative costs
Savingforcollege.com and Morningstar publish annual 529 plan ratings based on investment options, fees, and management quality — useful starting points when comparing plans.