Michigan Small Business Tax Guide — 2026
Income Tax Rate
4.25% flat rate + some cities levy local income tax
Sales Tax Rate
6%
Filing Deadline
April 15 (matches federal deadline)
Michigan Income Tax
Michigan imposes a state income tax with rates of 4.25% flat rate + some cities levy local income tax. Self-employed individuals, freelancers, and sole proprietors pay this tax on their net business income in addition to federal income tax and federal self-employment tax (15.3%).
Self-Employment in Michigan
Michigan has a flat 4.25% income tax. Some cities (Detroit, Grand Rapids, etc.) levy additional local income taxes of 1% — 2.4%. No separate state SE tax.
Estimated Tax Requirements
Quarterly estimated payments required if you expect to owe $500 or more. Standard federal due dates apply.
Michigan Deductions & Credits
- Michigan starts with federal AGI with modifications
- Personal exemption: $5,600 per person
- Michigan does not allow itemized deductions — uses exemption system
- Homestead property tax credit
Business Filing Fees
LLC: $50 formation + $25 annual statement. Corporation: $60 formation + $25 annual report.
Key Facts About Michigan Taxes
- Michigan's flat 4.25% rate is straightforward and moderate
- Detroit levies a 2.4% local income tax — the highest city tax in Michigan
- Michigan does not allow itemized deductions — uses personal exemptions instead
- Very affordable LLC costs ($50 formation + $25/year)
The Part Michigan Does Not Do For You
Whatever Michigan takes, it takes on your net profit — and net profit is just what you earned minus what you can prove you spent. The proving is on you, and it is where most of the money leaks out.
TaxTidy is where the proof lives. Photograph a receipt and it reads the vendor, the amount and the date in about three seconds, then files the expense on its Schedule C line. Nothing gets typed in twice, and nothing depends on you remembering a purchase from eight months ago.
Because Michigan wants its own return alongside the federal one, the same organized record does double duty — one set of receipts, sorted once, ready for whichever deadline comes first. Your Audit Readiness Score shows you how solid that record is before anyone else asks.
Frequently Asked Questions
What is Michigan's income tax rate?
Michigan has a flat 4.25% state income tax. Some cities add local income taxes — Detroit adds 2.4%, other cities typically add 1%.
Can I itemize deductions in Michigan?
No. Michigan does not allow itemized deductions. Instead, it uses a personal exemption system ($5,600 per person) and various credits.
When are Michigan estimated taxes due?
Quarterly on April 15, June 15, September 15, and January 15. Required if you expect to owe $500 or more.
Official source: Michigan Department of Revenue
TaxTidy provides expense organization tools based on the most current US tax law available to it. TaxTidy is not a CPA, Enrolled Agent, or licensed tax professional. All categorizations, deductions, and tax calculations are estimates. Please verify all data for accuracy and consult a certified tax professional before filing.
Start Tracking Your Michigan Business Expenses
Your first 25 scans are on us — free for life, no card required. Enough to sort this quarter's receipts by Schedule C line and see your Audit Readiness Score for the first time.
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