Nine states are 529 tax parity states: Arizona, Arkansas, Kansas, Maine, Minnesota, Missouri, Montana, Ohio, and Pennsylvania. In each one, you can deduct contributions to any qualified 529 plan, not just the plan your home state sponsors. Every other state with an income tax either restricts its 529 deduction to the in-state plan or offers no deduction at all.
What Parity Actually Buys You
Most states with a 529 deduction tie it to their own plan. Contribute to a lower-fee plan run by another state and you lose the tax break. Parity removes that penalty. You can shop nationwide on expense ratios, investment lineup, and track record, and still take the deduction on your state return.
Parity is only relevant if your state taxes income and offers a 529 benefit in the first place. Residents of Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming pay no state income tax, so the question does not arise. Several other states have an income tax but no 529 deduction, in which case the plan you pick has no state tax consequence either.
The Nine Parity States and Their Deduction Caps
Caps vary widely, and a couple of these states have quirks that change the math.
Pennsylvania. Up to $19,000 per beneficiary for single filers, and $38,000 for married couples filing jointly, provided each spouse has at least $19,000 of income. This is the most generous cap in the group and tracks the federal annual gift tax exclusion.
Ohio. $4,000 per beneficiary per year, with unlimited carryforward. A $20,000 contribution in one year keeps deducting at $4,000 annually until fully absorbed.
Montana. $4,500 per contributor, or $9,000 for joint filers when both spouses contribute or the funds are jointly owned. The limit adjusts for inflation starting in 2026.
Kansas. $3,000 per beneficiary for single filers, $6,000 for joint filers.
Arkansas. Parity applies, but the deduction favors the in-state plan. Contributions to the Arkansas plan qualify for up to $5,000 per person ($10,000 for a married couple). The out-of-state deduction is lower, so confirm the current figure before choosing an out-of-state plan for the tax benefit alone.
Minnesota. You choose between a subtraction (up to $1,500 for single filers, $3,000 for joint filers) or a nonrefundable credit equal to 50 percent of contributions, capped at $500. The credit phases out with income and disappears above roughly $193,500 for joint filers. You claim one, not both.
Arizona, Maine, and Missouri. All three offer parity deductions. Limits vary and change from year to year, so confirm the current cap with your state revenue department or plan administrator before you file.
These caps apply to total contributions per beneficiary across every 529 you fund. Putting $2,000 into an Ohio plan and $2,000 into a Nevada plan for the same child means you have already hit Ohio’s $4,000 ceiling.
Carryforward for Excess Contributions
If you contribute more than your cap, carryforward decides whether the excess is saved or lost. Ohio allows unlimited carryforward, so every dollar eventually reduces taxable income. Other parity states set specific windows, and some allow none at all. Across all states with 529 deductions, carryforward periods range from four years to unlimited.
The practical consequence: in a state without carryforward, front-loading a large contribution wastes the excess as a deduction. Spacing contributions across tax years captures more of the benefit. If you plan a large lump-sum gift, verify your state’s carryforward rule before writing the check.
Contribution Deadlines
In most parity states, contributions must land in the account by December 31 to count for that tax year. Miss the date and the contribution rolls forward.
Kansas is the outlier. Its deadline runs to April 15, so you can make prior-year contributions while preparing the return itself. Everywhere else, plan for ACH transfers to take several business days. A contribution initiated in late December can clear in January and miss the year you wanted.
Federal Gift Tax and Your State Cap Are Separate
Contributions to a 529 count as gifts federally. The 2026 annual gift tax exclusion is $19,000 per recipient, or $38,000 for a married couple electing gift splitting.1Internal Revenue Service. Rev. Proc. 2025-32 A special rule under 26 U.S.C. ยง 529 lets you front-load five years of gifts at once: $95,000 individually or $190,000 for a couple, with an election on Form 709 that spreads the gift over five years.2Office of the Law Revision Counsel. 26 U.S. Code 529 – Qualified Tuition Programs
The federal gift ceiling and your state deduction cap are independent. Front-loading $95,000 into a 529 does not create a $95,000 state deduction. If your state caps the deduction at $4,000, you deduct $4,000 that year. The balance grows federally tax-free but generates no additional state benefit unless your state allows carryforward.
Recapture: When the State Takes the Deduction Back
Taking a deduction comes with a condition. The money needs to go toward qualified education expenses. If it does not, most states require you to add the previously deducted amount back to taxable income in the year of the non-qualified withdrawal. This is recapture, and it reverses the tax break.
The most common trigger is a non-qualified withdrawal: money used for something other than tuition, fees, books, room and board, or other qualified costs. The earnings portion of that withdrawal also faces federal income tax and a 10 percent federal penalty. Some states add their own. Montana imposes a 6.75 percent recapture tax on non-qualified withdrawals.
Rolling funds from one 529 into another can trigger recapture too. If you claimed a deduction for contributing to Plan A and then rolled those funds into Plan B in a different state, some states treat the rollover as a withdrawal and demand the deduction back. That hidden cost can wipe out the fee savings you expected from the switch. Check your state’s rollover treatment first.
K-12 Tuition, Student Loans, and Roth Rollovers
Federal law treats up to $10,000 per year in K-12 tuition and up to $10,000 lifetime in student loan repayment as qualified 529 expenses. States decide independently whether to follow suit. Where a state does not conform, using 529 funds for those purposes triggers state tax on the earnings and recapture of any prior deduction.
Among parity states, Minnesota does not treat K-12 tuition as qualified. A Minnesota resident who withdraws for private elementary or high school owes recapture on the subtraction or credit claimed, plus state tax on the earnings. Roughly ten other states share this position, though most are not parity states. Student loan conformity is uneven as well. Colorado has said student loan repayments are not qualified in its system. Minnesota and Montana also impose minimum holding periods before a distribution qualifies for favorable tax treatment, so contributing and immediately withdrawing to pay a loan does not always work.
The 529-to-Roth IRA rollover, available since 2024, is another recapture flashpoint. The federal rules require the 529 to have been open at least 15 years, exclude contributions made within the prior five years, cap the rollover at the Roth annual contribution limit (currently $7,000 under age 50), and set a $35,000 lifetime ceiling. Transfers must be trustee-to-trustee, and normal Roth income limits are waived. On the state side, at least seven states plus the District of Columbia have indicated they will recapture prior deductions when 529 funds are rolled to a Roth: Indiana, Louisiana, Massachusetts, Michigan, Minnesota, Utah, and Vermont. Minnesota is the parity state most clearly affected. The other eight parity states have not publicly taken the same position as of early 2026, but guidance is still developing. Confirm with your state before initiating a rollover.
Claiming the Deduction on Your Return
You need a year-end account statement from the plan administrator showing total contributions for the calendar year. No IRS form reports contributions going in. Form 1099-Q covers distributions coming out, not deposits.3Internal Revenue Service. Instructions for Form 1099-Q The plan’s statement or your online summary is the document.
On the state return, the deduction typically shows up in the adjustments or subtractions section. Some states use a supplemental schedule where you list the plan, the beneficiary, and the amount. If you contributed to plans in more than one state for the same beneficiary, combine the totals and check them against your state’s cap. Reconcile the account statement to your bank records before filing. Mismatched numbers can prompt an adjustment notice and delay your refund, and out-of-state contributions sometimes draw closer scrutiny from state revenue departments.