Ohio state tax calculator

Use this Ohio state tax calculator hub to estimate income tax, check refund timelines, and plan withholding based on Ohio-specific rules. These tools cover common questions people search for in Ohio, including state income tax estimates, quarterly payments, and deductions. Start with the core calculator below, then explore related Ohio tools to refine your estimate and avoid surprises at filing time.

Popular Ohio tools

How to estimate Ohio taxes

  • Start with the Ohio income tax calculator to estimate your base liability.
  • Add withholding and estimated payments to see if you expect a refund or balance due.
  • Use deductions and credits tools to refine the estimate and reduce tax.
View all Ohio tools