Guide
529 Plans
529 plans are the most widely used tool for saving toward college costs. This section explains how they work, what they cover, and what they don't.
A 529 plan lets you invest money that grows free of federal tax and can be withdrawn tax-free when spent on qualified education expenses. States administer their own plans, each with different investment options, contribution rules, and tax treatment for residents.
This section covers everything that happens inside a 529 account: how the account is structured, who controls it, what you can put in, how it gets invested, and what happens when you take money out. The pages are grouped here because all of these decisions are connected. How you title the account affects financial aid. Where you open it affects your state tax bill. What you spend it on determines whether the withdrawal is tax-free or penalized.
Two rules changed on 1 July 2026 and affect how you read some of these pages. The financial aid treatment of grandparent-owned 529 accounts shifted under the revised FAFSA rules—students enrolled before that date are subject to the older treatment, while those entering the aid process from that date onward fall under the new one. A rollover option allowing unused 529 funds to move into a Roth IRA also became available; eligibility depends on the account's age and the beneficiary's situation, and the details are on the relevant child pages.
A good place to start is the plain-English guide if you are new to 529s, or the checklist if you are ready to open an account. From there, move through the pages in whatever order matches your situation: state choice, ownership, investment options, and then the spending and exit rules when the time comes.
What you need to understand first
Tax-free growth and withdrawals
Earnings inside a 529 grow free of federal income tax. When you withdraw money for a qualified expense, you owe no federal tax on those earnings. Some states also exempt withdrawals from state income tax. The value of this benefit depends on how long the money stays invested and what your marginal tax rate is.
State plan choice
Every state runs its own 529 plan, and you are not required to use your home state's plan. The decision comes down to whether your state offers a tax deduction or credit on contributions, and whether the investment options and fees in your home plan are competitive. The page on in-state versus out-of-state plans walks through how to compare them.
Qualified versus non-qualified expenses
Federal law defines which expenses can be paid from a 529 without triggering tax and a penalty on the earnings. The list includes tuition, fees, and certain room and board costs, among others. Spending on anything outside that definition turns part of your withdrawal into taxable income plus a penalty. The exact boundaries are set by the Internal Revenue Code.
Account ownership and control
The person who opens a 529 is the account owner, and ownership matters for two reasons: it determines who controls investment decisions and withdrawals, and it affects how the account is counted on financial aid forms. A parent-owned account is treated differently from a grandparent-owned account, and that difference is significant enough to have its own pages here.
Beneficiary flexibility
The beneficiary is the student the account is meant for, but you can change the beneficiary to another qualifying family member without tax consequences in most cases. This makes a 529 useful across siblings or even across generations. The rules on who counts as an eligible family member are set by federal law and published by the IRS.
Leftover money and exit options
If a student graduates, does not attend school, or receives scholarships that leave funds unused, you have several options: change the beneficiary, keep the account for graduate school, roll a limited amount into a Roth IRA under rules that took effect 1 July 2026, or withdraw the money and pay the tax and penalty on earnings. Each option has conditions covered in the exit pages.