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Michigan Chamber | Two Tax Hike Proposals Threaten Michigan Employers — & What You Can Do About It

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Michigan businesses are under threat – again.

Two harmful tax proposals are gaining traction in Lansing that could directly impact your operations, workforce and bottom line.

Here’s what’s happening — and how we can work together to stop it:

Threat #1 | Graduated Income Tax ballot proposal 

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MI Chamber President & CEO Jim Holcomb and fellow business leaders hosted a virtual media briefing to push back on misleading information and underscore the consequences of pending high stakes ballot proposal on Main Street businesses, communities and the broader economy.

What’s happening: A proposed 2026 ballot initiative would amend Michigan’s Constitution and undo our state’s long-standing ban on a graduated income tax — replacing our flat tax system with a “surcharge” on higher earners.
Why it matters: This historic tax increase would be particularly devastating to smaller to mid-size businesses, many of which are pass-through entities (sole proprietorships, partnerships, S corporations, LLCs) whose income is taxed at the owner’s individual rate, and a negative economic ripple effect. 
⚠️This policy would more than double the income tax rate — from 4.25 to 9.25 — for individuals earning $500K or more and for couples earning $1M. That means this tax does not go after “the rich” — it goes after the business owners who provide jobs and economic opportunity, who reinvest locally, and who are now trying to survive inflation, talent shortages and regulatory overload.

It also would:

  • Make MI the 7th highest income tax rate in the country and highest in the Midwest — nearly tripling Indiana and Ohio’s rates (3% and 3.5% respectively).
  • Tax success instead of rewarding it. Business success comes with risk —  personal investment, payroll responsibility, debt, and long hours.
What’s missing: There are also no real guarantees on how the money would be spent. The proposal lacks specifics on how results would be delivered or measured — yet imposes permanent, sweeping tax changes.
What’s next: The Michigan Chamber will be relentless against this attack on Michigan businesses and showcasing the catastrophic impact this would have across our communities and state’s economy. 
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Become a member todayWhether it’s stopping bad policy or helping businesses stay compliant, access resources or make connections, the Michigan Chamber is here for you.

Threat #2 | Corporate Income Tax hike

Tax hikes for road fixes

What’s happening: Some lawmakers are pushing to raise Michigan’s Corporate Income Tax (CIT) from 6% to 8.5% — a 40% increase — to fund road repairs. 

Why it matters: Michigan already lags the country in population growth, talent retention and business investment. This tax hike would hurt job providers and weaken our competitiveness — especially against states like Indiana and Ohio, which already have lower business tax rates.

The bottom line: Despite the name, this tax hike doesn’t hit just big corporations. Nearly 90% of Michigan’s CIT filers are small and mid-sized businesses — the ones like you fueling our local economies and creating jobs..

⚠️If passed, this would:

  • Cost employers at least $800M/year in new taxes

  • Give Michigan one of the highest CIT rates in the U.S.

  • A direct hit to growth, hiring and investment just as other states are ramping up

Find out what this could cost you: Use our CIT calculator

What’s next: The Michigan Chamber is uniting businesses across the state to stop this harmful proposal and find a better way to fix our roads.

 

🛡️Your strongest defense: MI Chamber membership🛡️

Now more than ever, Michigan businesses like yours need a steady, experienced advocate to protect your interests. 

When you join the Michigan Chamber, you gain: 

✅A powerful voice at the Capitol standing up for your business.

      🗳️Voted again in 2025 as the most effective membership organization —now 20 years running.

✅Trusted compliance tools and resources

✅Real-time alerts and insider updates so you can stay ahead

✅A statewide network

Membership that means more. Join the movement. Add your voice. Protect your future.

 

👉 Learn more and become a Michigan Chamber member today. Take advantage of a $500 base rate for 12 months.

Questions? Contact Amanda Toy — we’re here to help protect, connect and strengthen Michigan businesses.

 

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