You have heard other parents mention "a 529" and nodded along. It is named after a section of the tax code, and underneath the dull name is a simple deal: an investment account for education where the growth is never taxed as long as the money pays for school.
What a 529 is
A 529 is a state-sponsored account with a federal tax perk attached. You put in money that has already been taxed (contributions do not lower your federal income tax), you invest it, and when it comes out for qualified education expenses the growth is federally tax-free. In a regular brokerage account you owe tax on the gains; in a 529 spent on school, you owe none.
| Term | Plain meaning |
|---|---|
| Account owner | You — you open it, control it and can change the beneficiary |
| Beneficiary | The future student the money is for; you keep control after they turn 18 |
| Contribution | Money you put in, from already-taxed dollars |
| Qualified withdrawal | Money taken out for an approved education cost — growth is tax-free |
| Non-qualified withdrawal | Money taken out for anything else — growth is taxed plus a 10% additional tax |
Three facts that surprise most people:
- You can open almost any state's plan. You are not locked into your own state, though your own state's plan is usually the one that carries a state income-tax deduction or credit (below).
- There is no income limit to contribute. Unlike a Roth IRA, high earners are not shut out.
- The 529 belongs to you, not the child. That matters for financial aid: the aid lesson shows a parent-owned 529 is assessed at no more than 5.64% on the FAFSA, against 20% for money in the student's name.
Two kinds: education-savings vs prepaid-tuition
| Feature | Education-savings 529 | Prepaid-tuition 529 |
|---|---|---|
| How it grows | Invested in funds; value rises and falls with markets | Locks in tuition credits at today's price |
| What it covers | Tuition, fees, room and board, books, computers and more | Mostly tuition and fees at in-state public schools |
| Where it works | Any accredited school nationwide, and many abroad | The state's own schools, with a conversion value elsewhere |
| Who carries the risk | You do — returns are not guaranteed | The plan does — it promises future tuition |
| Availability | Every state | A handful of states |
The education-savings version is what everyone means by "a 529". You choose an investment mix — usually an age-based portfolio that shifts from mostly stocks to mostly bonds as the child nears 18 — and the same rules from risk, return and diversification apply. The prepaid version trades growth for price certainty and is tied to particular schools.
What counts as a qualified expense
| Expense | Qualified? |
|---|---|
| College tuition and required fees | Yes |
| Room and board while enrolled at least half-time | Yes, up to the school's published cost-of-attendance allowance |
| Books, supplies, required equipment, a computer and internet access | Yes |
| K-12 tuition (public, private or religious school) | Yes — up to $20,000 per student per year from 2026 ($10,000 through 2025) |
| Registered apprenticeship fees, books, supplies and equipment | Yes |
| Student-loan payments for the beneficiary (or a sibling) | Yes — up to $10,000 per person, lifetime |
| Transportation, a car, a phone plan, travel home | No |
The K-12 limit applies to tuition only, and the student-loan use is a lifetime cap per borrower, not a yearly one.
The unused-money exits
Plans change: scholarships, a different school, a child who skips college. Four exits keep the tax break intact:
- Change the beneficiary to another family member — a sibling, a cousin, yourself — with no tax.
- Roll up to $35,000 into the beneficiary's Roth IRA, lifetime. The 529 must have been open for at least 15 years, contributions (and their earnings) from the last 5 years cannot be moved, and each year's rollover counts against the IRA limit — $7,000 for 2025 — so the full $35,000 takes at least five years.
- Withdraw up to the amount of a scholarship without the 10% additional tax (income tax on the earnings still applies).
- Keep it invested for graduate school, a career change or a grandchild — there is no deadline to spend it.
The state-tax sweetener
The federal break applies whichever state's plan you use. On top of it, most states with an income tax give a deduction or credit for contributions, a few give it for contributions to any state's plan, and states with no income tax give none. Look up your state's plan page before you open an account elsewhere: two families doing the same thing in different states get different tax results.
What a non-qualified withdrawal costs
Take money out for anything else and only the earnings portion is taxed — your contributions come back tax-free because they were taxed going in. The earnings are added to your income for the year and charged an extra 10% additional tax. That is the price of the flexibility, and the worked example shows its size.
A 529 is not the only way to save for school; the college plan lesson sets a monthly target and shows where a 529 fits beside custodial accounts and plain savings.