Ohio State Tax Return: How to File, Rates, and Refund Status
Ohio residents, part-year residents and nonresidents who earn income from Ohio sources are required to file a state income tax return using Form IT-1040, the Ohio Individual Income Tax Return. Ohio's income tax is progressive, with rates ranging from 0% to 3.125% for the 2025 tax year.
Ohio income tax returns are due April 15, the same deadline as your federal return. If you need more time to file, Ohio automatically grants an extension when you obtain a federal extension; no separate state form is required.
Who Must File an Ohio State Tax Return?
Individuals must file state income tax returns if they live in Ohio for any part of the year or earn money from Ohio sources, such as wages, property income, sports betting, or the lottery.
It's not necessary for taxpayers who live in Indiana, Kentucky, West Virginia, Michigan, or Pennsylvania and earn their sole Ohio income from wages to file an Ohio return. For additional information about who must file state returns, access the Ohio Department of Taxation's website.
Ohio Income Taxes and Brackets
Ohio uses a graduated income tax system. For the 2025 tax year, there are three brackets:
- 0% on the first $26,050 of taxable income
- 2.75% on income between $26,050 and $100,000
- 3.125% on income over $100,000
Only the portion of income within each bracket is taxed at that rate, not your total income.
Ohio does not use a standard deduction. Instead, you claim a personal exemption for yourself, your spouse (if filing jointly) and each dependent. For the 2025 tax year, personal exemption amounts range from $0 to $1,900 to $2,400 per person, based on your modified adjusted gross income (MAGI).
How to File or Amend Your Ohio State Tax Return
All Ohio residents, part-year residents and nonresidents with Ohio-sourced income file using Form IT-1040, regardless of whether you itemize deductions.
You can file online for free through Ohio's OH|TAX eServices portal at tax.ohio.gov/OHTAX, or through an IRS authorized e-file provider like E-file.com. E-filing gets your refund faster and can help reduce the risk of errors.
If you discover an error on a previously filed return, file an amended Ohio IT-1040.
If mailing your amended return with a payment, send it to:
Department of Taxation
PO Box 2057
Columbus, OH 43270-2057
If mailing without a payment, send to:
Department of Taxation
PO Box 2679
Columbus, OH 43270-2679
To check the status of your Ohio tax refund, visit the OH|TAX eServices portal and select "Check My Refund Status." For all other refund, amendment and return inquiries, call 800-282-1780.
Filing Deadline and Extensions
Ohio income tax returns are due April 15, the same as the federal deadline.
Ohio does not have a separate state extension form. If you need more time to file, obtain a federal tax extension since Ohio automatically grants a corresponding state extension. Extended returns must be filed by October 15 and, if mailing, include a copy of your federal extension.
The extension applies to filing only; it does not extend your payment deadline. If you owe tax, mail your payment by April 15 with an IT-40P payment coupon to:
Department of Taxation
PO Box 182131
Columbus, OH 43218-2131
You can also pay online at tax.ohio.gov/OHTAX.
Penalties for Failure to File
If you fail to file your Ohio return on time, the penalty is the greater of 5% of the amount due or $50 per month, up to a maximum of 50% of the tax due or $500. If you file on time but don't pay the full amount owed, interest accrues at a set monthly rate on the unpaid balance until it's paid in full.
Estimated Tax Payments
If you are self-employed or your withholding doesn't fully cover your Ohio tax liability, you may need to make quarterly estimated payments. Pay online through the OH|TAX eServices portal, or use the Ohio Universal Payment Coupon (OUPC) if paying by check or money order.
Ready to File Your Ohio State Tax Return?
E-file your IT-1040 online with E-file.com. Fast, accurate and backed by step-by-step guidance for every filing situation. Start Your Ohio State Return.
Frequently Asked Questions
When can I expect my Ohio tax refund?
E-filed returns are generally processed within two to three business days of receipt, while paper returns can take several weeks to appear in the system. Most refunds are issued within 60 days, but please allow at least 120 days before contacting ODT.
Do Ohio school districts have their own income tax?
Yes. Some Ohio school districts levy a local income tax. If you lived in or earned income in a taxing district, you may need to file Form SD 100 in addition to your state IT-1040. File each return in a separate envelope.
Does Ohio tax the income I earn in other states?
Ohio residents are generally taxed on all income, including wages earned in other states. If you paid income tax to another state on the same income, you may be able to claim a credit on your Ohio return to avoid double taxation. Residents of Indiana, Kentucky, West Virginia, Michigan and Pennsylvania whose only Ohio income is wages are exempt from filing under reciprocity agreements.
What is the Ohio state tax filing deadline?
April 15, aligned with the federal deadline. Extended returns are due October 15. Ohio does not have a separate state extension form; a federal extension automatically covers your Ohio filing.
Note: States & U.S. territories may make changes to their tax laws with little notice. We do our best to keep this information up-to-date, but it is provided on an "AS IS" basis. For more see our terms.