File an Ohio Tax Return Amendment

Need to Correct an Error?

If you discover an error on your previously filed Ohio return, use Form IT-1040 to file an amended return. This applies for both the current and past tax years. However, note that Form IT-1040 is specific to Ohio and cannot be used for federal tax amendments. For federal errors, please refer to IRS Form 1040X.

IRS Adjusted Your Federal Return?

The IRS will automatically notify the Ohio Department of Taxation if adjustments are made to your federal return. In this case, you have one year to file an amended Ohio return using Form IT-1040 to ensure your state taxes are accurate.

Changing Your Filing Status (Married Filers Only)

An amended return allows married filers to change their filing status from "married filing separately" to "married filing jointly." However, changing from "married filing jointly" to "married filing separately" is not permitted through an amended return.

Additional Considerations

While eFile.com can assist in preparing your amended Ohio return, it cannot electronically submit the amendment. You will need to mail the completed form to the Ohio Department of Taxation.
For further information and instructions, please refer below.

Function

Description

Ohio Tax Deadlines, Forms, Extension, Penalties

Instructions, Resources on how to prepare and e-File Ohio Tax Returns or how to prepare an Extension and/or previous Year Tax Returns

Prepare, eFile a current tax year OH + IRS Tax Return: Detailed eFile.com Service Overview

Start Federal and Ohio Tax Returns

Prepare only an OH State Return

Step by step instructions on how to only Prepare - not e-File - one or more State Returns on eFile.com.

File a current tax year Ohio Tax Amendment

You can prepare an Ohio Tax Amendment for the current tax year here on eFile.com; the amendment can not be e-filed. After you have prepared the amendment, download the PDF from your My Account, check the box and mail in the form to the address listed below. For other tax years complete the form below before you print, sign and mail in the form.
Option 1: Sign into your eFile.com account, modify your Return and download/print your IT-1040 under My Account. Check off the space next to "Check here if this is an amended return. Include the Ohio IT RE (do NOT include a copy of the previously filed return)." to indicate that it's an amended return. Sign the amended return and mail it to one of the addresses listed below.
Option 2: If you don't have an eFile.com account follow the step by step instruction on how to prepare a tax return/amendment.
Option 3: If you want to do the math on your own paper return then complete, sign OH Form IT-1040 - Print, Mail the Form to this address if you are including a tax payment:
Ohio Department of Taxation
P.O. Box 2057
Columbus, OH 43270-2057
Mail the Form to this address if you are not including a tax payment:
Ohio Department of Taxation
P.O. Box 2679
Columbus, OH 43270-2679

Check this box on the OH Tax Return Form IT-1040. This Form can be used to file a: Tax Return, Tax Amendment, Change of Address.

OH Tax Amendment Form IT-1040
This Form can be used to file an: Income Tax Return, Tax Amendment, Change of Address. Complete a Form IT-1040 and check the space next to "Check here if this is an amended return. Include the Ohio IT RE (do NOT include a copy of the previously filed return)" to report that it's an amended return.

Step 1: Select the OH Form IT-1040 by Tax Year below
Step 2: Check the space next to "Check here if this is an amended return. Include the Ohio IT RE (do NOT include a copy of the previously filed return)." reporting it's an amended return
Step 3: Sign, Mail Form IT-1040 to one of the addresses listed above

Current tax year only: Prepare online on eFile.com until the October deadline. When done Print, Sign and Mail in - not eFile - Your Tax Amendment, Address Change, etc.

After the October deadline, Prepare, Print, Sign and Mail-In - see address above - your Current tax year - Form IT-1040.

How to correct a rejected Tax Return

If your OH Tax Return was rejected by the OH Tax Agency - not eFile.com - instructions on how to correct a rejected Ohio Tax Return.

For all Tax Years prior to 2022 Prepare, Print, Sign and Mail-In - see address above - your Tax Amendment by Tax Year as soon as possible. Be aware that for Tax Year 2014 and earlier amended returns, you will need to download and complete Form IT-140X. You will also file an IRS Tax Amendment Form 1040X.

Tax Year 2023 - Form IT-1040
Tax Year 2022 - Form IT-1040
Tax Year 2021 - Form IT-1040
Tax Year 2020 - Form IT-1040
Tax Year 2019 - Form IT-1040
Tax Year 2018 - Form IT-1040
Tax Year 2017 - Form IT-1040
Tax Year 2016 - Form IT-1040
Tax Year 2015 - Form IT-1040
Tax Years 2014, Earlier - Form IT-140X

Check Your OH Tax Amendment Status

1. Call the OH Department of Revenue at (800) 282-1780.
2. Contact the OH Department of Revenue

Ohio Refund Deadlines

A. Three years from the due date of the original tax year return, including valid filing extensions.
B. One year from the final determination of the amended federal return or federal change, whichever is later, provided that the allowable refund is not more than the decrease in Ohio tax attributable to the federal change or correction.
C. Two years from the payment of an assessment, provided the amended return raises issues relating only to the prior assessment and the refund does not exceed the amount of tax paid on the prior assessment.
D. Two years from the filing of an amended Ohio return resulting in the payment of additional tax, provided that the current amended return raises issues relating solely to the prior amended return and that the refund does not exceed the amount of the tax payment made as a result of the prior amended return.
Additional Ohio Tax Income Taxes Deadlines

Ohio Income Tax Penalties

Find out how Ohio Late Filing and Late Payment Penalties are calculated.
For IRS Tax and Late Filing Penalties we have an easy to use tool: The PENALTYucator.

File an IRS Tax Amendment by Tax Year

Instructions on how to prepare an IRS Tax Amendment on eFile.com, however the IRS does not accept Tax Amendments electronically.

Will I get a bigger tax refund in 2024?

Many taxpayers can expect a bigger tax refund on their 2023 taxes. To help you keep up with soaring inflation, the IRS is making bigger changes than usual that could save you big money on your 2023 taxes, which is the tax return you'll file in 2024.

Take control of your personal life relationships, finances, and taxes: follow the tips on this page and keep up with tax planning for next year. You can use this free Tax Refund Calculator 2023 to get a high-level understanding of your taxes.

TurboTax^® is a registered trademark of Intuit, Inc.
H&R Block^® is a registered trademark of HRB Innovations, Inc.