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Ohio Tax

How To Prepare And e-File Your 2020 Ohio Income Tax Return On eFile.com in 2021. Find Due Dates, OH Mailing Address, and OH Payment Options.

Amend Your Ohio Tax Return. Get Step by Step Instructions on How to File Tax Amendment Form IT-1040 for Various Tax Years. See Info on Penalties and Interest.

Ohio or OH Income Tax Brackets by Tax Year. A List of State Tax Rates By Which You Income is Calculated. Find Standard Deductions and Tax Forms.