Self Employed Tax Deductions — Michigan, 2026

Self Employed Tax Deductions in Michigan for 2026: The Full List, With Real Numbers

The standard mileage rate went up to 72.5 cents per mile for 2026. The QBI deduction is now permanent. Solo 401(k) limits rose to $23,500. Most freelancers and contractors in Michigan are still using last year's numbers, or missing deductions entirely. Here's what actually applies for this tax year, plus what's specific to filing in Michigan.

📍 32008 Harper Ave, St. Clair Shores, MI 48082  |  ☎ 586-757-6116
72.5¢/mile2026 standard mileage rate (up from 70¢ in 2025)
20%QBI deduction on qualified business income, now permanent under OBBBA
$23,500Solo 401(k) employee contribution limit, 2026 (plus employer share)
15.3%Self-employment tax rate, half of which is deductible

2026 IRS figures per IRS Notice 2026-10 and the One Big Beautiful Bill Act (OBBBA). General information, not tax advice for your specific return.

What Changed for Self-Employed Filers in 2026

A handful of real changes landed for the 2026 tax year, and most self-employed filers haven't adjusted their numbers yet:

  • QBI deduction made permanent. The 20% Qualified Business Income deduction was scheduled to expire after 2025. The One Big Beautiful Bill Act made it permanent and widened the phase-in income ranges, so more self-employed filers qualify for the full deduction.
  • New $400 minimum QBI deduction. If you have at least $1,000 of qualified business income, you now get a guaranteed minimum $400 deduction, even if the standard 20% calculation works out to less. This helps small side businesses that previously saw little benefit.
  • Mileage rate increased to 72.5 cents. Up from 70 cents in 2025. On 10,000 business miles, that's an extra $250 in deductions just from the rate change.
  • 100% bonus depreciation made permanent. Equipment placed in service after January 19, 2025 can generally be deducted in full in the year of purchase rather than spread across several years.

The Deductions That Actually Move the Needle

Not all deductions are equal. These five typically account for the largest share of tax savings for self-employed Michigan filers:

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QBI Deduction (20%)

Deduct up to 20% of your qualified business income directly off taxable income, no itemizing required. On $80,000 in net business income, that's potentially $16,000 off your taxable income. Phase-outs apply for certain service businesses (law, accounting, consulting) above specific income thresholds.

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Vehicle & Mileage

72.5 cents per business mile in 2026, covering gas, maintenance, insurance, and depreciation in one number. Drive 12,000 business miles and that's $8,700 off your taxable income. Or use the actual expense method if you have a less fuel-efficient or expensive vehicle, but you can't switch methods after year one.

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Retirement Contributions

A Solo 401(k) allows up to $23,500 in employee contributions ($31,000 if 50+), plus an employer contribution of up to 25% of net self-employment income. A SEP IRA allows up to 25% of net SE income, capped at $70,000. This is one of the few deductions that benefits you twice: lowers your tax bill now and builds retirement savings.

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Self-Employed Health Insurance

Deduct 100% of health, dental, and qualifying long-term care insurance premiums for yourself, your spouse, and dependents, directly above the line on Form 1040 — not subject to the 2-AGI itemized threshold that applies to employees.

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Home Office Deduction

Simplified method: $5 per square foot, up to 300 square feet ($1,500 max). Regular method: actual percentage of rent/mortgage, utilities, and insurance based on office square footage — usually larger if your office takes up more than 10% of your home, but requires more recordkeeping.

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Half of Self-Employment Tax

You pay 15.3% SE tax on 92.35% of net self-employment income, but you can deduct half of that amount on Schedule 1. This mirrors the employer-side payroll tax that a traditional employer would have paid on your behalf.

Full Self-Employed Deduction Checklist for 2026

CategoryExamplesSchedule C Line
AdvertisingWebsite costs, Google Ads, social media ads, business cardsLine 8
Vehicle/mileage72.5¢/mile standard rate, or actual expenses (gas, insurance, depreciation)Line 9
Contract laborPayments to subcontractors and freelancers you hireLine 11
Depreciation / Section 179Computers, equipment, furniture (often fully deductible in year one under 100% bonus depreciation)Line 13
InsuranceGeneral liability, professional liability (E&O), cyber liabilityLine 15
Legal & professional servicesAttorney fees, accountant/bookkeeper fees, consultantsLine 17
Office expensesSupplies, software subscriptions (CRM, accounting, project management)Line 18 & 22
Taxes & licensesBusiness licenses, state/local business taxesLine 23
TravelAirfare, hotels, transportation for business tripsLine 24a
Meals50% deductible for business-related meals with documented purposeLine 24b
UtilitiesBusiness-use percentage of phone and internetLine 25
Home officeSimplified ($5/sq ft, max $1,500) or regular method (actual percentage)Line 30

What's Specific to Filing Self-Employed in Michigan

State-Level Considerations

  • Michigan applies a flat 4.25% income tax on net self-employment income, with no separate state self-employment tax
  • Federal deductions (QBI, home office, mileage) flow through to your Michigan taxable income, so maximizing federal deductions reduces your Michigan liability too
  • Quarterly estimated payments are due to both the IRS and Michigan Treasury on the same schedule: April 15, June 15, September 15, January 15
  • If your business operates in or you live in a Michigan city with a local income tax (Detroit, etc.), that's a separate filing on top of state and federal

The S-Corp Question

If your net self-employment income exceeds roughly $50,000–$80,000, electing S-corp status can reduce self-employment tax significantly by splitting income into a reasonable salary (subject to FICA) and distributions (not subject to SE tax). On $100,000 net income, this can save $4,000–$6,000 annually after accounting for added payroll and compliance costs.

Michigan's Flow-Through Entity (FTE) election at 4.25% becomes available once you've made the S-corp switch, offering an additional workaround for the federal SALT deduction cap.

5 Mistakes That Cost Self-Employed Filers the Most

  • Reconstructing mileage logs at tax time. The IRS requires contemporaneous records: date, destination, business purpose, miles. A log built in March for last year's driving is a documented audit red flag.
  • Mixing personal and business expenses. No separate business bank account or card means hours of reconstruction at tax time and significantly higher audit risk if questioned.
  • Skipping retirement contributions entirely. A Solo 401(k) is one of the few deductions that reduces your tax bill while building wealth that stays yours, unlike most deductions that simply offset spending.
  • Not tracking the home-office exclusive-use test. A kitchen table or couch with a laptop doesn't qualify. The space must be used regularly and exclusively for business.
  • Three or more years of reported losses. Under IRC Section 183, the IRS may reclassify a chronically unprofitable activity as a hobby, disallowing the deductions that would otherwise apply.

How We Help Self-Employed Filers in Michigan

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Schedule C Preparation

Federal and Michigan returns filed together, with every applicable deduction reviewed against your actual records, not a generic checklist.

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Quarterly Estimated Payments

Calculated based on your actual year-to-date income, not last year's number, so April doesn't bring a surprise.

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S-Corp Election Analysis

If your income justifies it, we model the real savings, set up payroll, and document a defensible reasonable salary from day one.

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Bookkeeping for Freelancers

Monthly categorization and reconciliation so your deductions are documented as the year happens, not reconstructed in March.

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Retirement Plan Setup

SEP IRA, Solo 401(k), or SIMPLE IRA, set up correctly with contribution limits calculated for your specific income.

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Deduction Review for Prior Years

If you suspect you've missed deductions in past returns, we review and file amended returns where it makes sense.

Serving Self-Employed Professionals Throughout Macomb County, MI

Our office is at 32008 Harper Ave in St. Clair Shores. We work with freelancers, consultants, contractors, and gig workers throughout:

  • St. Clair Shores
  • Warren
  • Sterling Heights
  • Roseville
  • Eastpointe
  • Clinton Township

Frequently Asked Questions

What is the standard mileage rate for 2026?

The IRS standard mileage rate for 2026 is 72.5 cents per mile for business driving, up from 70 cents in 2025. You can add parking fees and tolls on top of this rate. You must choose either the standard mileage rate or the actual expense method in the first year you use a vehicle for business, and you generally can't switch methods later for that same vehicle.

Is the QBI deduction still available in 2026?

Yes. The Qualified Business Income (QBI) deduction was set to expire after 2025 but was made permanent under the One Big Beautiful Bill Act (OBBBA). Eligible self-employed filers can deduct up to 20% of qualified business income. Starting in 2026, a minimum $400 deduction applies if you have at least $1,000 of qualified business income, even if the standard calculation produces less.

How much can I contribute to a Solo 401(k) in 2026?

Up to $23,500 in employee contributions if you're under 50, or $31,000 if you're 50 or older, plus an employer contribution of up to 25% of net self-employment income. The combined limit is generally capped around $72,000 (or $80,000 for those 50 and older), making it one of the largest available deductions for profitable self-employed filers.

Can I deduct health insurance premiums as a self-employed person?

Yes. Self-employed individuals can deduct 100% of health, dental, and qualifying long-term care insurance premiums paid for themselves, their spouse, and dependents. This is an above-the-line deduction on Form 1040, available even if you don't itemize. The deduction isn't available for any month you were eligible to participate in an employer-sponsored plan (your own or a spouse's).

What documentation do I need for the home office deduction?

The space must be used regularly and exclusively for business. Keep records of square footage, a description of how the space is used, and (for the regular method) receipts for rent/mortgage, utilities, and insurance. The simplified method just requires accurate square footage up to 300 square feet, calculated at $5 per square foot.

At what income level should I consider an S-corp election?

Most tax professionals point to roughly $50,000-$80,000 in net self-employment income as the break-even point, since S-corp compliance costs (payroll, additional tax prep, state fees) typically run $3,500-$5,000 per year. Below that range, the added cost often exceeds the self-employment tax savings.

Do these deductions apply differently on my Michigan state return?

Federal deductions like QBI, mileage, home office, and retirement contributions reduce your federal taxable income, which flows through as the starting point for your Michigan return. Michigan applies its flat 4.25% rate to that reduced income, so maximizing federal deductions also lowers your Michigan tax liability. There's no separate Michigan self-employment tax.

Find Out What You're Actually Missing

Bring your records to a free consultation. We'll review your specific income and expenses against the full 2026 deduction list, not just the obvious ones.

Schedule a Free Consultation Call 586-757-6116