Guide
529 Plans
529 plans are the most widely used tool for saving toward college costs. This section covers how they work, what they cover, and how to manage them.
A 529 plan lets money grow free of federal income tax when used for qualified education expenses. Each state runs its own plan or plans, and the rules governing contributions, investment options, state tax benefits, and penalties for non-qualified withdrawals vary by state.
A 529 plan does one core job: it lets savings grow without federal income tax being owed on the earnings, provided the money is eventually spent on qualified education expenses. That single feature drives most of the decisions this section walks you through — who opens the account, which state's plan to use, how to invest the money, and what to do if circumstances change.
The pages here are grouped around four practical questions: setting the account up correctly, spending from it correctly, understanding how it interacts with financial aid and taxes, and handling what happens when plans change. None of those questions can be answered in isolation, which is why this section exists as a whole rather than as scattered articles.
If you are just arriving, start with *What Is a 529 Plan? A Plain-English Guide* and the *Terms and Definitions* page to build a working vocabulary. If you already own a plan and have a specific problem — a change of beneficiary, a non-qualified withdrawal, leftover funds — go directly to the relevant child page. The checklist is useful both before you open an account and before you take a withdrawal.
This section covers the 529 plan itself — how it is structured, invested, spent, and adjusted. It does not cover the cost figures you are saving toward (see What College Actually Costs or Net Price vs Sticker Price), other savings tools such as Coverdell accounts or UGMA accounts (see Other Ways to Save), or the tax credits that can apply alongside or instead of a 529 (see Education Tax Credits).
What you need to understand first
Tax-free growth
Earnings inside a 529 are not subject to federal income tax as long as withdrawals are used for qualified expenses. Most states also exempt earnings from state income tax. The benefit compounds over time, so the longer money stays invested, the larger the tax advantage relative to a taxable savings account.
Plan type: savings vs prepaid
Savings plans invest contributions in market-based options and grow with investment returns. Prepaid tuition plans lock in today's tuition rates at participating institutions. The two types carry different risks, different flexibility, and different rules about which expenses they cover. The child page on this distinction explains how to choose between them.
Account owner and beneficiary
A 529 has two roles: the owner, who controls the account and makes decisions, and the beneficiary, whose education expenses the account is meant to fund. These can be the same person. Ownership affects financial aid treatment, gift-tax rules, and what happens if the beneficiary does not use the funds.
Qualified vs non-qualified expenses
Federal law defines which expenses can be paid from a 529 without triggering tax and a penalty. Tuition, fees, and certain room and board costs generally qualify. Many other costs do not. The line matters because a non-qualified withdrawal triggers income tax on the earnings plus an additional penalty on top.
State tax deduction
Many states allow residents to deduct 529 contributions from state taxable income, but only for contributions to their own state's plan, or in some states any plan. The deduction amount, the plan requirement, and whether the state has an income tax at all are state-specific details published by each state's plan administrator.
Roth IRA rollover rule
A rule that took effect for tax years beginning after the end of a specified transition period allows unused 529 funds to be rolled into a Roth IRA for the beneficiary, subject to conditions including a minimum account age and annual rollover caps. This rule changed on a date effective after the original SECURE 2.0 passage; the current IRS guidance and plan-specific rules govern who qualifies.
Mistakes to avoid with 529 Plans
Defaulting to your own state's plan without checking
Why it happens: Families assume their home state's plan is automatically the right choice because of the state tax deduction, without checking whether the deduction applies to out-of-state plans or whether a different plan offers meaningfully better investment options at lower cost.
What to do instead: Check your state's deduction rules first — some states allow a deduction for any plan — then compare investment options and fees before deciding; the child page on in-state versus out-of-state plans walks through this comparison.
Spending 529 money on expenses that don't qualify
Why it happens: The list of qualified expenses is narrower than most families expect, and some costs that feel obviously educational — transport, health insurance, certain technology — may not qualify under current federal rules.
What to do instead: Check the qualified expenses page before making any withdrawal, and keep receipts for every purchase so that the qualified portion can be documented if questioned.
Opening the account in a grandparent's name to keep it off the FAFSA
Why it happens: Before a rule change effective for the FAFSA covering a specific academic year beginning after 2023, grandparent-owned 529 distributions were counted as student income, which had a large impact on aid calculations — so families structured ownership to avoid that, and that habit persisted even after the treatment changed.
What to do instead: Read the grandparent-owned 529 page and the financial aid treatment page together, because the FAFSA and CSS Profile treat grandparent accounts differently from each other, and the right ownership structure depends on which forms the school requires.
529 Plans: common questions
Can I use a 529 for a school in another state?
Yes. A 529 savings plan can be used at any eligible institution in the United States and at many abroad, regardless of which state's plan you hold or where the school is located. Eligible institutions are those that participate in federal student aid programs. The child page on qualified expenses covers which costs at those schools the 529 can pay.
What happens to a 529 if my child doesn't go to college?
Several options exist. You can change the beneficiary to another family member, hold the account in case the original beneficiary returns to school later, use the funds for qualifying apprenticeship programs or K–12 tuition up to a federal limit, or roll a portion to a Roth IRA under conditions introduced after SECURE 2.0. A non-qualified withdrawal is always available but triggers tax and a penalty on the earnings.
Does a 529 plan affect financial aid?
It can. A parent-owned 529 is counted as a parental asset on the FAFSA, which is assessed at a lower rate than student assets. A student-owned plan is assessed at the student rate. The CSS Profile, used by many private colleges, treats 529 accounts differently from the FAFSA and may assess them more heavily. The financial aid treatment page and the grandparent accounts page cover this in detail.
Can I contribute to a 529 if my child is already in high school?
Yes, there is no age cutoff for opening or contributing to a 529. The practical consideration is that a shorter investment horizon means less time for growth and less tolerance for investment risk, which affects which portfolios make sense. An age-based portfolio will shift to more conservative holdings automatically as the beneficiary gets closer to enrollment.
Is there a contribution limit on a 529?
There is no annual contribution limit set by federal law, but contributions are treated as gifts for gift-tax purposes, and contributions above the annual gift-tax exclusion amount require a gift-tax return. Federal law also permits a strategy called superfunding that lets you front-load several years of contributions at once. Each state's plan sets its own aggregate account balance limit; that figure is published by the individual plan.
Can I move money from one 529 to a different state's plan?
Yes. A rollover from one 529 to another is permitted once every twelve months for the same beneficiary without triggering tax or a penalty. Changing the beneficiary at the same time resets that clock. If your state's plan offers a deduction and you roll out, you may have to repay the deduction — your state's tax authority publishes the recapture rules.