Ohio and federal tax deadlines you should know.

Here are the main federal and Ohio tax deadlines for the 2026 tax year. Deadlines can shift when a date falls on a weekend or holiday, so always confirm the current-year date before you rely on it - or just ask us.

Deadline	Date	What it's for
Federal individual filing deadline	April 15, 2026	File and pay your 2025 federal individual tax return, or file for an extension.
Ohio individual filing deadline	April 15, 2026	Ohio individual income tax returns generally follow the same deadline as federal returns.
Q1 2026 estimated tax payment	April 15, 2026	First quarterly payment for income not covered by withholding (self-employment, gig work, rental income, etc.).
Q2 2026 estimated tax payment	June 15, 2026	Second quarterly estimated tax payment.
Q3 2026 estimated tax payment	September 15, 2026	Third quarterly estimated tax payment.
Q4 2026 estimated tax payment	January 15, 2027	Fourth and final estimated tax payment for the 2026 tax year.
Federal and Ohio extended filing deadline	October 15, 2026	If you filed IRS Form 4868 by April 15, 2026, this is your new deadline to file your return. Ohio automatically follows the federal extension. This is an extension to file, not an extension to pay - any tax owed was still due April 15.

These dates are for individual filers in the most common situations. Some business entity types, like partnerships and S corporations, have earlier deadlines (mid-March). If that's you, ask us and we'll confirm the right date for your entity.

This is general information, not personalized tax or legal advice. Talk to us about your specific situation.