Michigan corporate income tax is 6.0%. Does not conform to federal bonus depreciation. PTET election deadline extended to September 30 for calendar-year filers.
Key Planning Insight:
Michigan extended its PTET election deadline to the last day of the 9th month after year-end (September 30 for calendar-year filers) — one of the most flexible deadlines in the nation. County-level income taxes also apply in some areas.
Michigan-Specific Tax Strategies
These strategies are especially powerful or unique in Michigan. Click any strategy to learn more.
Michigan's PTET election allows pass-through entities to pay the 4.25% flat state tax at the entity level. Owners receive a credit on their individual Michigan returns while the entity deducts the payment federally.
Michigan offers various tax credits and incentives for small businesses, including the Michigan Business Development Program and industry-specific credits. These can be combined with the PTET election and Michigan's flat 4.25% rate.
Section 179 allows businesses to deduct the full purchase price of qualifying equipment, vehicles, and software in the year of purchase rather than depreciating over time. The 2026 federal limit is over $1 million. Some states cap or limit Section 179 conformity — check your state rules.
S-Corp owners must pay themselves a "reasonable salary" subject to payroll taxes (15.3%), but remaining profits distributed as shareholder distributions avoid self-employment tax entirely. Optimizing the salary-to-distribution ratio is one of the most impactful tax strategies for business owners earning $60,000+ in net profit.
The home office deduction (IRC §280A) allows self-employed individuals and business owners to deduct a portion of rent, mortgage interest, utilities, insurance, and repairs based on the percentage of your home used exclusively for business. The simplified method allows $5/sq ft up to 300 sq ft ($1,500 max).
Choosing the right business structure is the single biggest tax decision you'll make. Here's what Michigan LLC and S-Corp owners need to know.
Michigan LLC Formation
Michigan LLCs are taxed as pass-through entities by default. All profits flow to your personal return and are taxed at 4.25% (flat, reduced to 3.99% by 2026 trigger). Electing S-Corp status can significantly reduce your self-employment tax burden.
LLC vs. S-Corp in Michigan
Michigan offers a Pass-Through Entity Tax (PTET) election — a major advantage for LLC and S-Corp owners. By paying state income tax at the entity level, you bypass the $10,000 federal SALT deduction cap and deduct the full state tax bill on your federal return.
Top LLC Write-Offs in Michigan
Michigan LLC owners can deduct: business expenses (IRC §162), home office (IRC §280A), vehicle mileage (IRC §179), Section 179 equipment expensing, retirement contributions (Solo 401k or SEP-IRA), health insurance premiums, and business meals. Note: Michigan does not conform to federal bonus depreciation — an add-back on your state return may be required.
Michigan Business Tax Note
Michigan corporate income tax is 6.0%. Does not conform to federal bonus depreciation. PTET election deadline extended to September 30 for calendar-year filers.
These federal strategies apply to Michigan residents and business owners. Click any strategy to see full details, savings estimates, and eligibility requirements.
Common questions about Michigan LLC taxes, S-Corp elections, and business write-offs — answered by Uncle Kam's tax advisors.
Michigan's top marginal income tax rate is 4.25% (flat, reduced to 3.99% by 2026 trigger). Business owners and self-employed individuals pay this rate on their net business income. Strategies like the S-Corp election, pass-through entity tax (PTET) election, and maximizing deductions can significantly reduce your effective Michigan tax rate.
The most powerful write-offs for Michigan LLC owners include: the S-Corp election to reduce self-employment taxes, Section 179 and bonus depreciation for equipment and real estate, the home office deduction, vehicle and mileage deductions, Solo 401(k) or SEP-IRA contributions, and business meals and travel. Michigan-specific strategies like the PTET election and state-specific credits can add further savings.
Yes. Michigan offers a pass-through entity tax election that allows S-Corps and partnerships to pay state income tax at the entity level. This is a powerful SALT workaround that lets business owners deduct state taxes on their federal return, bypassing the $10,000 SALT cap. Uncle Kam's tax advisors can help you determine if the Michigan PTET election is right for your business.
Michigan does not fully conform to federal bonus depreciation rules. You may need to add back bonus depreciation on your Michigan state return and depreciate assets over a longer schedule. However, Section 179 expensing may still be available up to Michigan's state cap. A tax advisor can help you navigate this.
For most Michigan business owners earning over $60,000 in net profit, electing S-Corp status can save $5,000–$20,000 per year in self-employment taxes. The right choice depends on your income level, Michigan's franchise or minimum tax requirements, and your business structure. Uncle Kam's advisors specialize in Michigan entity structuring — book a free call to get a personalized recommendation.
Self-employed individuals in Michigan can reduce state taxes by: maximizing business deductions (home office, vehicle, equipment), contributing to a Solo 401(k) or SEP-IRA, electing S-Corp status to reduce self-employment tax, using the PTET election if available, and timing income and deductions strategically. A Michigan-based tax strategy session with Uncle Kam can identify your biggest opportunities.
Real estate investors in Michigan benefit most from cost segregation studies (accelerating depreciation on commercial and rental properties), the 1031 exchange (deferring capital gains on property sales), bonus depreciation (if Michigan conforms), the short-term rental loophole, and real estate professional status (REPS). Michigan's specific tax rules can significantly impact your real estate ROI — get a free strategy review from Uncle Kam.
