What is a 529 Plan?

A 529 plan is a tax-advantaged savings account, named after Section 529 of the Internal Revenue Code (IRC), that lets you invest for education costs and withdraw the money tax-free when it goes toward qualified expenses. Anyone can open one for a named beneficiary, and the account owner keeps control of the funds rather than handing them to the student.

You contribute after-tax money, the investments grow without being taxed year to year, and qualified withdrawals come out federal-tax-free. Many states layer their own deduction or credit on top for residents who contribute to their home-state plan.

Types of 529 Plans

There are two kinds: education savings plans and prepaid tuition plans.

Education savings plans are investment accounts. You pick from a menu of portfolios (often age-based options that shift toward conservative holdings as the beneficiary nears college), and the balance rises and falls with the market. The money can go toward qualified expenses at eligible schools nationwide, not just in your state. This is by far the more common and flexible type.

Prepaid tuition plans let you lock in future tuition at today’s rates, usually at in-state public colleges. Fewer states offer them, several have closed to new enrollees, and they generally cover tuition and mandatory fees rather than room, board, or other costs. If the beneficiary attends a private or out-of-state school, the plan typically pays out its equivalent value rather than the full sticker price.

How 529 Plans Are Taxed

Contributions are not deductible on your federal return, but the two tax benefits that follow are the reason the account exists. Earnings grow federally tax-free, and withdrawals used for qualified expenses are federally tax-free, which means decades of compounding without a yearly tax drag.

State treatment varies. More than 30 states plus the District of Columbia offer a state income tax deduction or credit for contributions, though most tie the benefit to using your own state’s plan. A handful of states with no income tax offer nothing to deduct, and a few offer a deduction regardless of which state’s plan you use. Because the rules and dollar caps differ widely, check your specific state’s plan before assuming a deduction applies.

If you withdraw earnings for something that isn’t a qualified expense, that portion is taxed as ordinary income and generally hit with an additional 10% penalty. The penalty applies only to earnings, not to the contributions you already paid tax on. It’s waived, though the earnings are still taxed, when the beneficiary dies or becomes disabled, receives a tax-free scholarship (up to the scholarship amount), or attends a U.S. military academy, and for amounts that are taxable only because the same expenses were used to claim the American Opportunity or Lifetime Learning credit.

What Can 529 Funds Be Used For?

Qualified expenses at eligible colleges, universities, and vocational schools include tuition, mandatory fees, books, supplies, and required equipment. Computers, software, and internet access also qualify when the beneficiary uses them primarily while enrolled, whether or not the school requires them. Room and board also qualify for students enrolled at least half-time, capped at the school’s published cost-of-attendance allowance (or the actual amount billed for on-campus housing). Eligible schools include most accredited U.S. institutions and some foreign schools that participate in federal student aid programs.

Several categories extend 529 use beyond traditional college:

• K-12 costs. Up to $20,000 per year per beneficiary can go toward K-12 expenses at a public, private, or religious school, raised from $10,000 by the One Big Beautiful Bill Act effective 2026. Since 2025, qualified K-12 costs reach beyond tuition to include curriculum materials, tutoring, standardized-test fees, dual-enrollment fees, and educational therapies for students with disabilities. Not every state conforms to the expanded federal rules, so a withdrawal that’s federally qualified may still be taxable in your state.
• Apprenticeships and student loans. Funds can cover fees, books, and supplies for registered apprenticeship programs, and up to a $10,000 lifetime limit per beneficiary can repay qualified student loans (with a separate $10,000 limit available for each of the beneficiary’s siblings).
• Credentialing programs. Since the 2025 law, 529 funds can also cover tuition, fees, books, supplies, and testing costs for recognized postsecondary credentialing and licensing programs, such as trade certifications, commercial driver training, and professional licensing exams.

529 Plan Contribution Limits

There is no annual contribution limit set by the IRS. Instead, each state caps the total that can accumulate in an account, and once the balance hits that ceiling no further contributions are allowed (though the account can keep growing through investment returns). These lifetime aggregate limits are set by each state, often run to several hundred thousand dollars per beneficiary, and change over time.

In practice, the gift tax sets the limit that matters for yearly contributions. Contributions count as gifts to the beneficiary, so they fall under the annual gift tax exclusion, which is $19,000 per donor per beneficiary for 2026. Stay at or below that and there is nothing to report.

A special 529 rule lets you front-load. Through five-year gift-tax averaging, sometimes called superfunding, you can contribute up to five years of exclusions at once, up to $95,000 (5 x $19,000) in a single year, and elect to spread it across five years for gift tax purposes without touching your lifetime exemption. You make that election on a gift tax return, Form 709, even when no gift tax is due. A married couple can contribute up to $190,000 for one beneficiary this way if each spouse gives from their own funds, or if they elect gift splitting, which also requires Form 709. The tradeoff is that you generally cannot make additional exclusion-eligible gifts to that same beneficiary during the five-year window.

To check whether a contribution pace keeps up with tuition, you can add a 529 to your ProjectionLab plan, fund it with a monthly flow, and pay a college expense from it.

What Happens to Leftover 529 Money?

Unused funds do not have to be wasted. The most flexible option is to change the beneficiary to another eligible family member, such as a sibling, a cousin, or the account owner, with no income tax consequence, which keeps the money growing for a different education goal. Moving the account to someone in a younger generation than the current beneficiary, such as the beneficiary’s own child, can count as a gift for gift tax purposes.

A newer option comes from the SECURE 2.0 Act. Starting in 2024, you can roll leftover 529 funds into a Roth IRA in the beneficiary’s name, subject to conditions: the money has to move as a direct trustee-to-trustee transfer (withdrawing it and depositing it yourself makes it a non-qualified withdrawal), the 529 account must have been open for at least 15 years, the rollover is capped at a $35,000 lifetime total per beneficiary, each year’s rollover counts against that year’s Roth contribution limit, contributions made in the last five years (and their earnings) can’t be rolled over, and the beneficiary needs earned income to qualify. Unlike a regular Roth IRA contribution, the rollover isn’t subject to the Roth IRA income phase-out, so a high earner can still use it, though the amount rolled over each year can’t exceed the beneficiary’s earned income.

One open question: the IRS hasn’t said whether changing the account’s beneficiary restarts the 15-year clock. If you’ve changed beneficiaries or plan to, check with your plan administrator before counting on a rollover.

If neither fits, you can simply take the money out. You will owe income tax and the 10% penalty on the earnings portion of a non-qualified withdrawal, but your original contributions come back tax-free and penalty-free.

Frequently Asked Questions

How does a 529 plan work? You open an account, name a beneficiary, and invest after-tax contributions in the plan’s portfolio options. The balance grows without yearly tax, and withdrawals for the beneficiary’s qualified education expenses come out federally tax-free. You stay the owner, so you decide when money comes out and can switch the beneficiary to another family member.

Who can open a 529 plan? Almost anyone: a parent, grandparent, other relative, family friend, or the future student. The beneficiary doesn’t have to be related to you, and you aren’t limited to your own state’s plan, though your state’s tax deduction or credit may be.

Can you roll a 529 into a Roth IRA? Yes, up to $35,000 over the beneficiary’s lifetime, by direct transfer into a Roth IRA in the beneficiary’s name once the 529 has been open 15 years. The other conditions are covered under leftover 529 money above.

How much can you contribute to a 529 plan? There is no federal annual limit, only a state-set aggregate ceiling. In practice, the $19,000 annual gift tax exclusion for 2026 and five-year averaging (up to $95,000 at once) set the pace, as described under contribution limits above.

Does a 529 plan affect financial aid? A little, if a parent or the student owns it. For a dependent student, a 529 owned by a parent or by the student is reported on the Free Application for Federal Student Aid (FAFSA) as a parental asset, which the aid formula assesses at no more than 5.64% of its value, far less than a student-owned asset like a custodial account. Since the 2024-25 FAFSA, a 529 owned by a grandparent isn’t reported at all, and its distributions no longer count as student income.

Is a 529 plan worth it? If you are saving specifically for education, tax-free growth gives a 529 a clear edge over a taxable account, especially if your state adds a deduction or credit. The main consideration is flexibility: if there is a real chance the money will not go toward education, weigh the 10% penalty on non-qualified earnings against the newer escape hatches like beneficiary changes and the Roth rollover.