File an Ohio Tax Return Amendment

amend Ohio taxes
"The Buckeye State"

If you need to change or amend an accepted Ohio State Income Tax Return for the current or previous Tax Year you need to complete Form IT-1040 for the appropriate Tax Year (or IT-140X for 2014 and earlier Tax Years). Form IT-1040 is a Form used for the Tax Return and Tax Amendment. You can prepare a 2019 Ohio Tax Amendment on, however you cannot submit it electronically. In comparison, the IRS requires a different Form - Form 1040X -to amend an IRS return (do not use Form 1040 for an IRS Amendment). 

Did the IRS send you a notification to change an error on your current or previous Tax Return? Or, did you discovered an error on one of your Returns? In either case, if the IRS amended or changed one of your IRS Tax Return(s), the IRS will report this to the Ohio Tax Agency, thus you should file an Ohio Tax Amendment within one year. Be aware that you can change your filing status from married filing separately to married filing jointly on your amended return, but you can't change your status from married filing jointly to married filing separately.

Prepare, eFile a 2019 OH + IRS Tax Return: Detailed Service Overview
File a 2019 Ohio Tax Amendment
You cannot eFile an OH Tax Amendment anywhere, except mail it in. However, you can prepare it here on
Option 1: Sign into your 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 the address listed below.
Option 2: If you don't have an 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 OH Tax Department to:
Ohio Department of Taxation
P.O. Box 1460
Columbus, OH 43216-1460
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 the address listed above
Tax Year 2019 only: Prepare online on until Oct. 15, 2019. When done Print, Sign and Mail in - not eFile - Your Tax Amendment, Address Change, etc.
After Oct. 15 Prepare, Print, Sign and Mail-In - see address above - your Tax Year 2019 - Form IT-1040. (To Be Added)
How to correct a rejected Tax Return
If your OH Tax Return was rejected by the OH Tax Agency - not - instructions on how to correct a rejected Ohio Tax Return.
For all Tax Years prior to 2019 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.
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, however the IRS does not accept Tax Amendments electronically.



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