Ohio state income tax calculator

Estimate Ohio income tax using the 0% to 3.5% bracket schedule.

How this calculator works

Step 1 starts with the Ohio taxable income you already calculated on your return. If you are a part-year resident or nonresident, the tool applies the Ohio income percentage you provide to focus on Ohio-source income.

Step 2 applies Ohio's three-tier bracket schedule to estimate total tax.

Step 3 summarizes the effective and marginal rates so you can see how additional income would be taxed and whether your current estimate matches your expectations.

Frequently asked questions

What income should I enter?

Use Ohio taxable income from your return. If you only know total income, estimate deductions first or use the standard deduction tool.

Do part-year residents prorate income?

Yes. Use the Ohio income allocation percentage from your return to prorate taxable income before applying the Ohio bracket schedule.

Does Ohio use brackets?

Yes. Ohio uses a three-tier schedule with a 0% bracket, a 2.75% bracket, and a 3.5% top rate. The published thresholds apply across filing statuses.

Is this tax advice?

No. This tool provides estimates based on the inputs you provide and is not legal or tax advice.

This tool provides estimates based on Ohio's published brackets. Not legal or tax advice.