Every state permits families to withdraw money from a 529 plan for private K-12 tuition under federal law, but only about 20 states plus the 9 with no income tax leave those withdrawals fully tax-free. Roughly 13 states refuse to treat K-12 tuition as a qualified expense under their own tax codes, meaning the earnings portion of the distribution gets hit with state income tax and, in several states, an additional penalty. Where you live decides whether a 529 actually saves you money on private school.
States That Tax K-12 Withdrawals
About 13 states explicitly refuse to follow the federal rule that treats K-12 tuition as a qualified 529 expense. In these states, the earnings portion of a K-12 withdrawal is subject to state income tax, and some states pile on a penalty:
- California
- Colorado
- Hawaii
- Illinois
- Michigan
- Minnesota
- Montana
- Nebraska
- New Mexico
- New York
- Oregon
- Vermont
The result is an odd split at tax time. Your federal return shows nothing owed on the distribution. Your state return shows tax on the earnings, and possibly a penalty on top. How much you owe depends on your state’s income tax rate and how much of the account is earnings versus contributions. An account that has been growing for a decade will produce a much larger taxable earnings figure than one opened last year.
Penalty Rates by State
The penalty piece varies a lot. California adds 2.5% to the earnings portion of a K-12 distribution, on top of regular state income tax. Montana applies a recapture tax of roughly 6.75%. New Mexico and Vermont each impose penalties in the range of 10%. Missouri, which generally conforms to federal rules, still charges a penalty of at least 10% of earnings on any distribution that doesn’t meet the state’s own qualified-expense definition.
Recapture of Prior Deductions or Credits
The bill can grow larger if you already claimed a state deduction or credit for the contributions you’re now withdrawing. Several decoupling states will “recapture” that earlier benefit when the money leaves for a non-qualifying purpose. If you deducted $5,000 in contributions over several years and your state’s marginal rate is 6%, that’s $300 clawed back, added to the income tax and penalty on the earnings. Run the arithmetic before you pull the funds. The combined hit from state income tax, a state penalty, and recapture can wipe out much of the federal tax advantage.
States Where K-12 Withdrawals Are Fully Tax-Free
Two groups of states leave K-12 529 withdrawals untouched at the state level.
The first group is the nine states with no personal income tax at all: Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. Residents there follow federal rules only. If the withdrawal is federally qualified, it’s tax-free, full stop.
The second group is roughly 20 states that align their tax codes with the federal 529 K-12 rules. Withdrawals within federal limits produce no state tax on the earnings. Some of these states also offer a deduction or credit for contributions, which improves the math further. Indiana offers a credit worth 20% of contributions to its state 529 plan, and that credit applies to contributions earmarked for K-12 use.1Indiana Department of Revenue. Income Tax Information Bulletin 98 – Indiana 529 Savings Plan Credit
One caution for families in conforming states: federal law expanded the definition of a qualified K-12 expense beginning January 1, 2026, and not every state has passed matching legislation. A state that conformed to the older 2017 tuition-only rule may not yet recognize the newer categories like tutoring or homeschool curricula. Confirm with your state’s 529 plan administrator before withdrawing for anything beyond tuition.
Why States Diverge
The split comes from how each state ties its tax code to the federal Internal Revenue Code. Most states use the federal code as a starting point, but the mechanism differs. Some adopt federal changes automatically through “rolling” conformity. Others freeze their link to the federal code as of a specific date, called “static” or “fixed-date” conformity, and require legislative action before a new federal rule takes effect locally.
A rolling-conformity state that hasn’t specifically carved out the 529 K-12 rule generally follows the federal treatment by default. A static-conformity state pegged to a date before December 2017 may still not recognize K-12 distributions as qualified. And some rolling-conformity states have deliberately decoupled on this one issue, passing laws that adopt the federal code generally but exclude the 529 K-12 provision. You can’t rely on your state’s general conformity posture to predict the answer. The K-12 treatment is often a stand-alone carve-out.
What Federal Law Actually Allows
Understanding the state question means knowing what federal law now permits, since state-tax-free treatment tracks the federal definition wherever it applies.
The Tax Cuts and Jobs Act of 2017 first added K-12 tuition to the list of qualified 529 expenses, with a $10,000 annual per-student cap covering tuition only. The One Big Beautiful Bill Act, signed in 2025, made two significant changes effective January 1, 2026. It doubled the annual K-12 cap to $20,000 per student, and it expanded the list of qualified expenses well beyond tuition.
Qualified K-12 expenses under the 2026 rules include:
- Tuition at any public, private, or religious K-12 school
- Books and instructional materials, including homeschool curriculum packages
- Standardized testing fees, including college-entrance exams like the SAT and ACT
- Academic tutoring, with some restrictions
- Educational therapies for students with diagnosed learning differences, including support for conditions like ADHD and dyslexia
- Dual-enrollment college courses taken by high school students
- Structured homeschool curricula in states that recognize homeschooling
Room and board, transportation, and extracurricular fees still do not qualify at the K-12 level. Any withdrawal spent on those costs is a nonqualified distribution, with the earnings portion facing federal income tax plus a 10% federal penalty on top of any state consequences.
The $20,000 cap is per student, not per account. If both parents and grandparents keep separate 529s for the same child, every dollar withdrawn across all accounts counts against that single $20,000 ceiling. Going over triggers the same tax-and-penalty treatment as spending on a nonqualified expense.
Timing and Payment Mechanics
Even in a fully conforming state, a poorly timed withdrawal can turn qualified into nonqualified. The rule the IRS applies is calendar year, not academic year. The distribution and the expense it covers must occur in the same tax year. If a private school bills fall tuition in August and you don’t request the 529 withdrawal until January, the IRS sees a mismatch, and the earnings portion becomes taxable and penalized.
Two payment paths avoid this trap. You can direct the 529 plan to send funds straight to the school, which produces a clean paper trail and eliminates timing risk. Or you can pay out of pocket and reimburse yourself from the 529, provided the reimbursement lands in the same calendar year as the payment. Keep tuition invoices, receipts, and 529 statements organized. The IRS doesn’t require you to attach documentation to your return, but you need it if the return is questioned.
Documentation matters even more if you live in one of the decoupling states. You may have to separately calculate the earnings portion for the state return, because your state is treating the distribution differently than the federal government does.
The Practical Takeaway
If you live in a no-income-tax state or one of the roughly 20 conforming states, a 529 for private K-12 tuition works cleanly, and any state contribution deduction or credit is a bonus. If you live in California, Colorado, Hawaii, Illinois, Michigan, Minnesota, Montana, Nebraska, New Mexico, New York, Oregon, or Vermont, do the math first. Add up the state income tax on the earnings portion, any state penalty, and any recapture of prior deductions, then weigh that against the federal tax savings. In a high-tax state with significant account growth and prior contribution deductions claimed, the answer sometimes is to pay tuition out of pocket and let the 529 keep compounding for college.