2025 Ohio Form 1040

What Is Ohio Form IT-1040?

Ohio IT-1040 is the form used by full-year residents to file their state income tax return. The purpose of Form IT-1040 is to determine your tax liability for the state of Ohio. Part-year resident and nonresident filers will also complete Ohio Form IT-1040. Part-year residents must attach Ohio Form IT RC if claiming a credit for taxes paid to another state. Nonresidents must attach Ohio Form IT NRC to claim the nonresident credit for income not subject to Ohio tax.

Read the What Is my Ohio Residency Status section of the IT-1040 instructions book to help determine if you should file as a resident, part-year resident, or nonresident for tax year 2025.

Who Must File Ohio Form IT-1040?

In Ohio, all residents, part-year residents, and nonresidents with Ohio-sourced income are generally required to file an individual income tax return using Form IT-1040. Ohio-sourced income includes wages earned in Ohio, lottery or casino winnings, income from Ohio property, and income from businesses operating in the state. Full-year nonresidents living in reciprocal states (Indiana, Kentucky, West Virginia, Michigan, or Pennsylvania) are exempt from filing if their only Ohio-sourced income is wages.

Certain exceptions exist where individuals may not need to file an Ohio income tax return. You are exempt if your Ohio adjusted gross income is less than or equal to $0, your exemption amount equals or exceeds your Ohio adjusted gross income, or your applicable credits (such as the senior citizen credit) equal or surpass your income tax liability. Despite these exceptions, if you have a school district income tax liability, you are still required to file the Ohio IT 1040.

Read the Who Must File section of the Ohio IT-1040 instructions booklet to help determine if you need to file a state income tax return for tax year 2025.

Printable Ohio State Tax Forms

Printable Ohio IT-1040 Instructions

Click any of the Ohio income tax forms and instructions links above to download, save, view, and print the file for the corresponding year. These free PDF files are unaltered and are sourced directly from the publisher.

How To Check The Status Of My Ohio Tax Return?

To check the status of your Ohio IT-1040 income tax return online, visit the Ohio Department of Taxation website and use their Check My Refund Status service. Ohio Department of Taxation asks that you wait three weeks before checking the status of an electronically filed return and 12 weeks for a mailed-in paper return.

To check the status of your Ohio income tax return for 2025, you will need the following information:

• Social Security Number
• Date of Birth
• Type of Tax Return

The requested information must match what was submitted on your 2025 Ohio Form IT-1040. To check prior year returns, you will need to contact the Ohio Department of Taxation service center by phone, email, or mail.

To contact the Ohio Department of Taxation service center by phone or email, use the check your refund status link above. Alternatively, read or print the 2025 Ohio Form IT-1040 instructions to obtain the proper phone number and mailing address.

Frequently Asked Questions (FAQ)

Here are answers to some of the most common questions about Ohio Form IT-1040. These FAQ can help clarify how to fill out, document, and submit Form IT-1040 correctly.

Who must file Ohio Form IT-1040?

Ohio residents, part-year residents, and nonresidents with Ohio-source income may need to file Form IT-1040. Use the current Ohio instructions to determine whether your income and filing status create a filing requirement.

Do I need to file Ohio Form IT-1040 if I live in another state?

You may need to file if you are a nonresident who earned income taxable to Ohio. The Ohio IT-1040 instructions explain how nonresidents report Ohio income and claim available credits.

When is Ohio Form IT-1040 due?

For tax year 2025, Form IT-1040 is generally due April 15, 2026. An extension of time to file does not extend the time to pay the tax you owe.

Can I amend an Ohio Form IT-1040?

Yes. File an Ohio amended individual income tax return when you need to correct a previously filed return. Follow the current Ohio instructions and include the schedules that support your changes.

Should I keep a copy of my Ohio Form IT-1040?

Yes. Keep a copy of your completed return, W-2s, 1099s, and supporting schedules with your tax records. These documents can help if Ohio requests more information or you need to amend your return later.

Can I file Ohio Form IT-1040 electronically?

Yes, OH Form IT-1040 can be filed electronically as part of your overall Ohio tax return. If you're using income tax software, the program will prompt you to complete OH Form IT-1040 if your tax situation requires it.

Last updated: July 15, 2026

State Tax Forms