North Dakota state income tax calculator

Estimate North Dakota income tax using the 0% to 2.5% bracket schedule.

How this calculator works

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

Step 2 applies North Dakota'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 North Dakota 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 North Dakota income allocation percentage from your return to prorate taxable income before applying the North Dakota bracket schedule.

Does North Dakota use brackets?

Yes. North Dakota uses a three-tier schedule with a 0% bracket, a 1.95% bracket, and a 2.5% top rate that varies by filing status.

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 North Dakota's published brackets. Not legal or tax advice.