2023 Ohio State Tax Deadlines

Ohio Individual Income Tax Filing deadlines and extensions for 2023.

If you are a resident or have been involved in significant business operations within Ohio then you might be required to file Ohio State Taxes. We look at the most important tax deadlines and tax extensions for Ohio in 2023.

C Corporation

Ohio C Corporation Tax Deadlines for 2023

You must file & pay The Commercial Activity Tax (CAT) Annual return in Ohio by May 10, 2024.

Applicable form:
Commercial Activity Tax (CAT)

Extension to File Taxes in Ohio for 2023

There is no extension for time to file the Commercial Activity Tax return.

Pass-Throughs

Ohio S Corporation & Partnership Tax Deadlines for 2023

You must file in Ohio by April 16, 2024.

Applicable forms:
Form IT 1140 - Pass-Through Entity and Trust Withholding Return

Extension to File S Corporation & Partnership Taxes in Ohio for 2023

You must send payment for taxes in Ohio for the fiscal year 2023 by April 16, 2024.

The Extension Deadline is September 16, 2024 to file your Ohio income tax return.

Ohio automatically grants 5 months extensions on pass-through entity income tax returns if a federal extension is filed. This means you do not need to file for an extension in Ohio.

This is an extension to FILE, not an extension to PAY - payment is still due April 16, 2024.

Ohio Individual Tax Deadlines for 2023

Estimated Tax Deadline for Ohio 2023

Estimated tax payments should be made:  

  • April 18, 2023
  • June 15, 2023
  • November 15, 2023
  • January 15, 2024

See Ohio IT-1040 ES for the amount to pay with each voucher.

Individual Tax Deadline for Ohio 2023

You must file & pay Individual Income Taxes in Ohio by April 16, 2024.

Applicable forms:
Form IT-1040  - Full Time Residents

Extension to File Taxes in Ohio for 2023

You must send payment for taxes in Ohio for the fiscal year 2023 by April 15, 2024.

The Extension Deadline is October 15, 2024 to file your Ohio Individual Income tax return.

Ohio will automatically grant a 6 months extension on filing personal income taxes if a federal extension is filed. There is no Ohio-specific extension form, Federal Form 4868 serves as the Ohio extension request.

This is an extension to FILE, not an extension to PAY - payment is still due April 15, 2024.

Estates Tax Deadline for Ohio 2023

Ohio does not have an Estate Tax.

Farmer and Fisherman Taxes for Ohio 2023

If at least 2/3 of your gross income for the taxable year is derived from farming, you may pay estimated tax at any time on or before January 15, 2024. If you wait until January 15, 2024, you must pay the entire balance of the estimated tax. However, if farmers file their tax return on or before March 1, 2024, and pay the total tax at that time, they need not file estimated tax.

Sources

The material discussed on this page is meant for general illustration and/or informational purposes only and is not to be construed as investment, tax, or legal advice. You must exercise your own independent professional judgment, recognizing that advice should not be based on unreasonable factual or legal assumptions or unreasonably rely upon representations of the client or others. Further, any advice you provide in connection with tax return preparation must comply in full with the requirements of IRS Circular 230.

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