Nine states offer 529 tax parity, meaning residents can deduct contributions to any state’s 529 plan rather than being locked into the in-state option. Seven of those states — Arizona, Kansas, Maine, Missouri, Montana, Ohio, and Pennsylvania — give the same deduction regardless of which plan you use. Two more, Arkansas and Minnesota, offer a smaller benefit for out-of-state contributions than for in-state ones. Deduction limits run from $1,000 per beneficiary in Maine to $19,000 per beneficiary in Pennsylvania, and several states multiply the cap by the number of children you’re saving for.
What Tax Parity Means for Your Deduction
Most states that offer a 529 income tax deduction restrict it to their own plan. Contribute to another state’s plan and you get nothing back at tax time. A parity state treats every 529 the same: the deduction attaches to the act of saving, not to where the account sits. That freedom matters because 529 plans differ substantially in expense ratios, fund lineups, and portfolio options. In a parity state you can pick the cheapest or best-performing plan nationwide and still claim your state break.
At the federal level, 529 earnings grow tax-free and qualified withdrawals avoid federal income tax, but there is no federal contribution deduction.1Internal Revenue Service. 529 Plans: Questions and Answers The state deduction is where your immediate tax savings live, and parity is what determines whether an out-of-state account qualifies.
The Seven Full Parity States
Each of these states gives the same deduction whether you contribute to the in-state plan or any other state’s 529. Limits vary widely, and several apply per beneficiary, which lets families with multiple children multiply the deduction.
- Arizona — Up to $2,000 per beneficiary for single filers and heads of household, $4,000 per beneficiary for married couples filing jointly. Arizona’s law specifically references any plan established under Section 529 of the Internal Revenue Code.2Arizona’s Education Savings Plan. AZ Tax Advantages
- Kansas — Up to $3,000 per beneficiary for single filers, $6,000 for joint filers. Kansas explicitly includes contributions to plans sponsored by any other state.3Kansas State Treasurer. Learning Quest Frequently Asked Questions
- Maine — Up to $1,000 per beneficiary. An income cap applies: the deduction phases out for single filers with federal adjusted gross income above $100,000 and joint filers above $200,000.
- Missouri — Up to $8,000 for single filers, $16,000 for married couples filing jointly, among the most generous flat limits of any parity state.4MOST 529. Tax Advantages
- Montana — Up to $4,500 for single filers, $9,000 for joint filers where both spouses contribute or funds come from joint accounts. These limits took effect in tax year 2025 and will adjust annually for inflation.5Montana Department of Revenue. Family Education Savings Account Deductions
- Ohio — Up to $4,000 per beneficiary, with an unlimited carry-forward for excess contributions. Put in $6,000 for one child this year and you deduct $4,000 now and $2,000 next year.6Ohio Legislative Service Commission. Ohio Revised Code Chapter 5747 – Section 5747.70
- Pennsylvania — Up to $19,000 per beneficiary for single filers, $38,000 for married couples filing jointly (assuming each spouse earned at least $19,000). The cap matches the federal annual gift tax exclusion and is the highest flat deduction of any parity state.7PA 529 College and Career Savings Program. Frequently Asked Questions
The per-beneficiary structure in Arizona, Kansas, Ohio, and Pennsylvania is worth understanding. A couple with three children contributing to separate 529 accounts can claim the deduction limit three times over. In Pennsylvania, that means up to $114,000 in deductible contributions on a joint return in a single year.
The Two Partial Parity States
Arkansas and Minnesota give some benefit for out-of-state contributions, but on different terms than their in-state plans.
Arkansas
Arkansas rewards contributions to its Brighter Future plan more heavily: up to $5,000 for single filers, $10,000 for married couples. Contributions to another state’s 529 qualify for a smaller deduction of $3,000 per taxpayer ($6,000 for married couples), and only if you haven’t already deducted the same contribution on another state’s return.8Arkansas Brighter Future 529. Tax Advantages For an Arkansas resident, the investment savings from an out-of-state plan need to outweigh the reduced deduction.
Minnesota
Minnesota offers two separate benefits, and both apply to any state’s 529. The first is a subtraction of up to $1,500 ($3,000 for joint filers) from state taxable income. The second is a nonrefundable tax credit equal to 50% of contributions, capped at $500. The credit begins phasing out at $93,610 in adjusted gross income for all filers and disappears entirely above $193,500 for joint filers.9Minnesota House of Representatives. Minnesota’s 529 Tax Credit and Subtraction The credit is more valuable for lower-income families; higher earners past the phaseout still get the subtraction.
Contribution Deadlines
In most parity states, contributions must land in the account by December 31 to count toward that year’s deduction. Miss the date and the contribution rolls to next year’s return. Kansas is the exception: its deadline is April 15, giving residents an extra three and a half months to fund accounts and still claim the deduction for the prior tax year.3Kansas State Treasurer. Learning Quest Frequently Asked Questions Outside of that kind of extended window, a January contribution cannot be applied retroactively.
Recapture: When You Owe the Deduction Back
Taking a state deduction creates a contingent obligation. If the money later leaves the 529 system for a non-qualified reason, most states will add the previously deducted amount back to your taxable income for the year of the withdrawal. This happens in two common situations.
Non-Qualified Withdrawals
Pulling money out for anything other than qualified education expenses triggers a 10% federal penalty on the earnings portion plus ordinary federal income tax on those earnings.10Internal Revenue Service. Publication 970 – Tax Benefits for Education The state recapture stacks on top. The federal penalty has exceptions for scholarships, military academy attendance, and the beneficiary’s death or disability, but state recapture rules don’t always mirror those exceptions.
Rollovers to Another State’s Plan
Federal rules allow one 529-to-529 rollover per 12-month period without tax consequences. Some states, however, treat an outbound rollover the same as a non-qualified withdrawal for recapture purposes. In a parity state the risk is lower because you already had the freedom to pick any plan. If you originally took a deduction in a non-parity state and later moved to a parity state, rolling the funds could trigger recapture in the original state. Check the former state’s rules before initiating any transfer.
K-12 Tuition Is Not Always Covered at the State Level
Federal law allows 529 funds to pay up to $10,000 per year in elementary and secondary school tuition without federal tax.1Internal Revenue Service. 529 Plans: Questions and Answers States are not required to conform. Around ten states treat K-12 tuition withdrawals as non-qualified for state tax purposes and will recapture any deduction previously claimed on those contributions, potentially taxing the earnings as well. If you plan to use 529 money for private school before college, confirm your parity state follows the federal K-12 rule. Getting the deduction on the way in and owing it back on the way out is worse than never claiming it.