529 Plans Explained: A Parent's Guide to Tax-Free College Savings

A 529 plan is a tax-advantaged account built for one job: paying for education. You put in after-tax dollars, the money grows tax-free, and as long as you spend it on qualified education expenses, the withdrawals are tax-free too. It's the closest thing to a Roth IRA that exists for college savings.

The plans are run by states (you can use almost any state's plan, not just your own), and nearly all of them are education savings plans — you pick from a menu of investment portfolios and the balance rises and falls with the market. A smaller, older category called prepaid tuition plans lets you lock in tuition at today's prices, but most families today use the savings version, so that's what this guide focuses on.

The three things to know up front

1. Growth and withdrawals are tax-free — for qualified expenses. That's the whole advantage. Pull money out for something non-qualified and the earnings get taxed as income plus a 10% penalty.
2. You stay in control. Unlike a UTMA, a 529 never transfers to the child. You own it for as long as it exists, and you can change the beneficiary to another family member whenever you want.
3. Your state may hand you a deduction. Many states give a state income-tax deduction or credit for contributions to their plan — effectively a discount on every dollar you put in.

What counts as a "qualified" expense?

The list is broader than most parents assume. Tax-free 529 withdrawals can cover:

• College — tuition, fees, books, supplies, and required equipment.
• Room and board — for students enrolled at least half-time, up to the school's cost-of-attendance figure.
• K-12 expenses — up to $20,000 per year, per student starting in 2026 (doubled from $10,000), and now covering curriculum materials, tutoring, and testing fees on top of tuition. Some states don't follow the federal expansion, so check how your state treats it before withdrawing.
• Apprenticeships — registered programs, including fees, books, and equipment.
• Student loans — up to a $10,000 lifetime cap, per borrower, toward principal or interest.

What doesn't count: transportation, college application fees, health insurance, and general "extras" that the school doesn't bill as part of attendance. When it's actually time to spend the money, we walk through the timing traps in how to use a 529 for college — and the state-tax gotchas in 529 state tax treatment. To see your own state’s 529 deduction or credit at a glance, use the kids’ accounts by state explorer.

The financial-aid advantage over a UTMA

This is the quiet reason a 529 often wins for college-bound families. A parent-owned 529 is counted as a parent asset on the FAFSA, which reduces aid eligibility by at most ~5.6% of the balance. A UTMA is the child's asset, assessed at a much steeper ~20%. Same dollars, very different impact on a need-based aid package. (The full breakdown is in how custodial accounts affect financial aid.)

The new escape hatch: 529-to-Roth rollovers

The oldest objection to 529s was "what if my kid doesn't go to college?" A recent change softened that. Leftover 529 money can now be rolled into a Roth IRA in the beneficiary's name, subject to a few guardrails:

• The 529 must have been open for at least 15 years.
• There's a $35,000 lifetime rollover cap per beneficiary.
• Each year's rollover counts against the normal Roth IRA contribution limit, and the beneficiary needs earned income that year.
• Contributions (and earnings) from the last five years aren't eligible to move.

It's not a blank check, but it meaningfully lowers the "trapped money" risk: a 529 that overshoots can become a head start on retirement instead of a penalty. (Curious how the Roth side works? See the custodial Roth IRA guide.) If your child has a disability, a 529 can also be rolled into an ABLE account, which protects benefits like SSI and Medicaid.

When a 529 makes sense

A 529 is a strong fit when:

• Education is the primary goal you're saving for.
• You want tax-free growth and your state offers a deduction or credit.
• You'd rather keep control of the money than hand it over at 18.
• Your child may apply for need-based financial aid.

It's a weaker fit when:

• You want the money usable for anything, not just school (a UTMA is more flexible).
• You're fairly sure your child won't pursue education that qualifies, and the rollover cap wouldn't absorb the balance.

Weighing it against the other big options? We put them head-to-head in Trump Accounts vs. 529 vs. Roth IRA.

What to do this week

1. Check whether your state offers a tax deduction or credit — that often decides which state's plan to use.
2. Compare a couple of plans on fees and investment menus (your home-state plan and one top-rated national plan are a fine shortlist).
3. Open the account with you as owner and your child as beneficiary.
4. Set a small recurring contribution — consistency matters more than size this early.
5. Connect it in MemoryBank so the balance lives alongside every other account your kid can see and understand.

Frequently asked questions

What is a 529 plan?

A tax-advantaged account built for education. Contributions are made with after-tax dollars, the money grows tax-free, and withdrawals for qualified education expenses are tax-free too.

How does a 529 plan work?

You open a 529 through your state's plan (or another state's), name a beneficiary — usually your child — and contribute after-tax money. You choose how it's invested, typically from a menu of funds or an age-based option that grows more conservative as college nears. The money grows tax-free, and when it's time for school you withdraw it tax-free for qualified education expenses.

How much can you contribute to a 529 plan?

There's no annual federal contribution limit, but contributions count as gifts, so most people stay within the annual gift-tax exclusion (or use the 5-year 'superfunding' election to front-load five years at once). Each state also sets a high lifetime aggregate cap — often $300,000-$550,000 per beneficiary — after which no new contributions are allowed.

Does a 529 plan earn interest?

Not a fixed interest rate like a savings account — a 529 is invested, so its growth depends on the funds you choose. Most plans offer index funds and age-based portfolios; some also offer a stable-value or savings option that pays interest. Your return isn't guaranteed, but over a long horizon the invested growth is the whole point.

What can a 529 plan be used for?

Qualified education expenses: college tuition, fees, books and required equipment; room and board for at-least-half-time students; up to $20,000 per year of K-12 costs starting in 2026; registered apprenticeships; and up to a $10,000 lifetime cap toward student loans.

What happens to a 529 if my child doesn't go to college?

You can change the beneficiary to another family member, hold it for grad school, or use the 529-to-Roth rollover (15-year-old account, $35,000 lifetime cap, earned income required). A truly non-qualified withdrawal owes income tax plus a 10% penalty on the earnings.

Is a 529 better than a UTMA for financial aid?

Generally yes. A parent-owned 529 is treated as a parent asset (assessed at most around 5.6% on the FAFSA), while a UTMA is a student asset assessed at a flat 20%.

Does a 529 plan give a tax deduction?

Many states offer an income-tax deduction or credit for contributions. The federal benefit is tax-free growth and tax-free withdrawals for qualified education expenses.

Is a 529 or a Roth IRA better for a child?

They optimize for different goals. A 529 is best when education is the target — tax-free growth, a possible state deduction, and you keep control. A custodial Roth IRA is best for flexible, long-term (retirement-and-beyond) growth, but it requires the child to have earned income. Many families use both.

What's the difference between a Trump Account and a 529?

A 529 is a state-run education account with tax-free growth and withdrawals for qualified school costs. A Trump Account is a newer federal program that seeds $1,000 for eligible children born 2025 to 2028 and converts to the child's IRA at 18 — it's aimed at long-term savings generally, not education specifically, and its growth is taxed as ordinary income on withdrawal. They serve different goals and can be used together.