529 Plan State Tax Deduction Comparison 2026
Compare 2026 state income tax deductions and credits for 529 college-savings contributions across all 50 states. Enter your residence, contribution amount, marginal state tax rate, and filing status to see your real state tax savings — plus the top 10 states ranked by 2026 benefit.
| Step | Amount |
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| State | Limit | Tax saved |
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Source: Each state's Department of Revenue + the Saving For College state-by-state matrix (2026). Last updated: May 3, 2026.
What Is a 529 Plan State Tax Deduction?
A 529 plan state tax deduction (or credit) is a state-level income tax break for contributions to a 529 college-savings account. There is no federal deduction for 529 contributions — the only federal benefit is tax-free growth and withdrawals for qualified education expenses. State benefits, however, vary enormously: limits range from $0 (in 9 no-income-tax states and a few that simply offer no break) up to a full deduction of contributions in states like Pennsylvania, Connecticut, and Mississippi. Source: savingforcollege.com state-by-state matrix.
This calculator gives you the dollar value of the 2026 state benefit for your specific contribution amount, residence state, and filing status — using the latest published deduction caps and a typical marginal state rate when you don't supply one. All inputs stay in your browser.
How State Limits Differ in 2026
States fall into four broad buckets for 2026 529 tax treatment:
- Full-deduction states — Pennsylvania, Connecticut (up to $5k single / $10k MFJ but unused rolls forward), New Mexico, South Carolina, West Virginia. Effectively the entire contribution up to the federal gift-tax annual exclusion ($19,000/donor in 2026) is deductible.
- Capped-deduction states — New York ($5k/$10k), Illinois ($10k/$20k), Virginia ($4k per account), Michigan ($5k/$10k), Maryland ($2.5k per account). Most cap below the typical contribution.
- Credit states — Indiana (20% credit, max $1,500), Utah (4.55% credit), Vermont (10% credit). The credit reduces tax owed dollar-for-dollar within the cap.
- No-benefit states — the 9 no-income-tax states (AK, FL, NV, NH, SD, TN, TX, WA, WY) plus California, Hawaii, Kentucky, Maine, North Carolina, and Delaware which choose not to offer a 529 deduction.
"Tax Parity" States and Why Residency Matters
For most state residents, the deduction only applies if you contribute to YOUR home state's 529 plan. Seven "tax parity" states — Arizona, Arkansas, Kansas, Minnesota, Missouri, Montana, and Pennsylvania — let you deduct contributions to ANY state's 529 plan. This matters when another state has a stronger plan (lower fees, better investment lineup) but your home state offers a generous deduction.
If you move mid-year, deductibility usually applies to the year of contribution in the new state, but check the new state's DOR rules — some require six-months residency. Married couples filing jointly typically get double the limit. Some states (e.g., Wisconsin, Ohio) allow excess contributions to carry forward for several years, which the calculator surfaces in the "Carryforward" card when applicable. Last updated: May 3, 2026.
How to Use This Calculator
Pick your state, your filing status, and the contribution you plan to make in 2026. Enter your top state marginal tax rate if you know it (e.g., 6.85% for New York's mid-bracket); otherwise leave 0 and the tool will use a typical mid-bracket estimate for your state. The result shows your 2026 state tax saving, the deductible amount, and the effective benefit rate (savings ÷ contribution). The "Top 10" table re-ranks every state for your contribution amount, so you can see how much more (or less) you'd save by living elsewhere — useful when comparing job offers across state lines.
Frequently Asked Questions
Is there a federal tax deduction for 529 contributions?
No. The federal tax benefit of a 529 plan is tax-free growth and tax-free withdrawals for qualified higher-education expenses (and up to $10,000/year of K-12 tuition under the OBBB Act 2025 expansion). Federal income tax does NOT allow a deduction for the contribution itself.
Can I claim a 529 deduction for any state's 529 plan?
In most states, no — you must contribute to YOUR home state's 529 plan to claim the deduction. Seven "tax-parity" states (Arizona, Arkansas, Kansas, Minnesota, Missouri, Montana, Pennsylvania) allow you to deduct contributions to ANY state's 529 plan.
What is the 2026 federal contribution limit for 529 plans?
There is no annual federal contribution limit; gifts above the federal annual gift-tax exclusion ($19,000/donor in 2026) require a Form 709, but you can also use 5-year averaging (up to $95,000/donor in one year, prorated). Each state sets its own aggregate account ceiling — typically $300,000 to $570,000 per beneficiary.
Which states give a tax credit instead of a deduction for 529 contributions?
Indiana (20% credit, max $1,500), Utah (4.55% credit, max ~$115/$230), Vermont (10% credit, max $250/$500), Oregon (refundable credit, max $360), and Minnesota (deduction OR $500 credit, taxpayer's choice). Credits reduce tax dollar-for-dollar within the cap.
What happens if I contribute more than the state limit?
Most states only let you deduct/credit up to the cap and the excess is non-deductible. A few states allow carryforward of excess contributions: Connecticut (5 years), Maryland (10 years), Ohio (unlimited), Oklahoma (5 years), Virginia (unlimited), and Wisconsin (no limit). Check your state Department of Revenue.
Do the 9 no-income-tax states give any 529 benefit?
No state income tax means $0 state-level 529 deduction or credit. The 9 no-income-tax states are Alaska, Florida, Nevada, New Hampshire, South Dakota, Tennessee, Texas, Washington, and Wyoming. You still get the federal tax-free growth and tax-free qualified withdrawal benefit, which often dwarfs the state benefit anyway.