Updated October 4, 2026. Quick answer: Yes. Ohio’s Department of Taxation says “This deduction is limited to $4,000 per beneficiary per year”. Contributions to any state’s 529 plan qualify, and the excess over $4,000 carries forward.
What Ohio allows for 529 contributions
| Item | What the documents say |
|---|---|
| Treatment | Deduction from federal adjusted gross income |
| Limit | $4,000 per beneficiary per year; spouses are combined, filing jointly or separately |
| Plans that qualify | Any state’s 529 plan, from tax year 2023 |
| Carryforward | Contributions over the limit carry forward until fully deducted |
| Not-qualified withdrawals | Added back, up to the amounts previously deducted |
| Source | Ohio Department of Taxation FAQ; Ohio Revised Code 5747.70 |
A $10,000 contribution by a married couple
A married couple who put $10,000 into one beneficiary’s 529 account can deduct $4,000 this year, because the limit is $4,000 per beneficiary and spouses share it. The other $6,000 carries forward to later years.
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Any state’s plan counts
The Department’s FAQ says “Beginning with tax year 2023, contributions to any state’s 529 plan” are eligible, so an out-of-state plan does not cost an Ohio taxpayer the deduction.
Carryforward and withdrawals
The FAQ adds: “Contributions exceeding the $4,000 limitation may be carried forward”. On the other side, the statute says an add-back “shall not exceed amounts previously deducted under division (A)”, which keeps the add-back to what you actually deducted.
What the documents do not say
- The Department’s FAQ is undated; the statute is effective April 3, 2023.
What changes in 2026
No change for tax year 2026 appears in the documents read for this page.
Federal rules
A state break sits beside the federal rules for 529 plans: the statute is 26 U.S.C. 529 and the IRS explains it in Publication 970, Tax Benefits for Education.
Common mistakes
- Deducting more than $4,000 per beneficiary in a single year instead of carrying the excess forward.
Related: how Ohio taxes retirement income, whether Ohio taxes pensions, the five questions behind any 529 state tax break, and the state-by-state table of 529 deductions.
Sources
- Ohio Revised Code 5747.70, 529 plan deduction: https://codes.ohio.gov/ohio-revised-code/section-5747.70
- Income: 529 Plan Account Deduction (FAQ): https://tax.ohio.gov/help-center/faqs/income-529-plan-account-deduction/income-529-plan-account-deduction
Sources: the primary documents linked above, read on October 4, 2026. General information, not tax advice. Your own facts decide the outcome, and a preparer, the plan administrator or the agency itself is the right place to confirm anything consequential.