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Michigan Income Tax Calculator 2026

Michigan taxes income at a single flat 4.25% rate for 2026 — estimate yours below.

Updated for the 2026 tax year · Reconciled to the Michigan Department of Revenue at year-end
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Michigan's flat 4.25% income tax, explained

Michigan (MI) taxes income at a single flat 4.25% rate rather than graduated brackets, so — unlike the federal system — every dollar of Michigan taxable income is taxed at the same rate. That makes the state calculation simple, but it is separate from federal income tax and from Michigan sales tax.

What to know about Michigan tax

  • Michigan applies a single flat state income-tax rate.
  • Several Michigan cities (including Detroit) levy their own separate city income tax on top of the state flat tax.
  • Michigan has been expanding exemptions for retirement and pension income.

Frequently Asked Questions

Michigan uses a single flat income-tax rate of 4.25% (rather than graduated brackets) for 2026. Several Michigan cities (including Detroit) levy their own separate city income tax on top of the state flat tax. Confirm the current rate with the Michigan Department of Revenue.

No. It is an educational estimate based on published 2026 rates and is reconciled to the Michigan Department of Revenue at year-end. Confirm anything that affects a real decision with the Michigan Department of Revenue or a tax professional.

No. Some Michigan localities levy their own income tax that is separate from the state figure shown here.

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Disclaimer

This calculator provides estimates for informational and educational purposes only. SmartTaxCalcs does not provide tax advice. Your actual tax liability may differ based on your specific situation, recent law changes, and circumstances not modeled here (e.g., AMT, NIIT, special credits). We strongly recommend consulting a qualified tax professional (CPA, Enrolled Agent, or tax attorney) before filing or making financial decisions.

Data source: IRS Revenue Procedure / state Departments of Revenue. Last data update: May 19, 2026.

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