Macomb County Property Tax: Appeals, PRE & Due Dates (2026)

If you want to dispute a Macomb County property assessment, you file your appeal with your city or township's March Board of Review — not with Macomb County itself. Each of Macomb's cities and townships sets its own March meeting dates and appeal deadline (Warren's 2026 window, for example, runs through 5:00 p.m. on March 17), so check your local assessor's notice for the exact date. Appealing to that local board first is also the required first step before you can take a residential case to the Michigan Tax Tribunal.

Where and when to appeal

If you disagree with your property's assessment in Macomb County, you don't appeal to the county — you appeal to the March Board of Review in the city or township where the property sits (Warren, Sterling Heights, Clinton Township, Macomb Township, and every other Macomb city and township each run their own). Each local unit sets its own March meeting dates and hours, and appeal windows typically close in mid-March. For example, Warren's Board of Review hearings run March 11–17, with written appeals due by 5:00 p.m. on March 17, while Macomb Township's board has met for two days in early-to-mid March in recent years. Because there is no single county-wide deadline, check your own assessor's notice or website as soon as you receive your February assessment change notice.

How Michigan's assessment system actually works

Michigan doesn't have a county assessor valuing your home. Your local city or township assessor sets your assessment each year. Macomb County's Equalization Department doesn't assess individual parcels — its job is to study sales and appraisals across all local units and adjust each city's and township's assessment roll so that, countywide, assessments are applied at a uniform percentage of value. After county equalization, the State Tax Commission equalizes across all of Michigan's counties.

The single most important procedural fact for a Macomb homeowner: for most residential appeals, you must first protest to your local March Board of Review before you can take your case to the Michigan Tax Tribunal. Skipping the March Board of Review generally forecloses your right to appeal further for that tax year (there are narrow exceptions, such as some poverty-exemption denials, but don't count on one). The Board of Review is a panel of local residents who can lower, raise, or leave your assessment unchanged; if you're unsatisfied with its decision, you can then file with the Michigan Tax Tribunal's Residential and Small Claims Division — the Tribunal sets its own filing deadline each year, so confirm the current one directly with the Tribunal before your Board of Review hearing concludes.

State Equalized Value vs. Taxable Value — why your bill can jump

Every Michigan property has two key numbers on its assessment notice, and confusing them is the single most common homeowner mistake:

• State Equalized Value (SEV) is meant to equal roughly 50% of your property's true cash (market) value, recalculated each year from local sales studies.
• Taxable Value is what your tax bill is actually based on. Under Proposal A (1994), taxable value can only grow each year by the lesser of the rate of inflation (the state's CPI multiplier) or 5% — regardless of how much SEV or market value rises.

Because of this cap, taxable value in a rising market usually sits well below SEV, and a long-time owner's taxable value can lag market value substantially. But there's a catch: when a property transfers ownership, the cap resets — taxable value "uncaps" and jumps up to match the current SEV the following year. This is why a buyer's first full-year tax bill is often dramatically higher than what the seller was paying, even with no change in the assessor's valuation of the home. New physical improvements can also increase taxable value outside the cap.

The Principal Residence Exemption (PRE)

If Macomb County property is your primary home, you can claim the Principal Residence Exemption, which exempts your home from the local school district's operating millage — a significant chunk of most tax bills. You must affirmatively file an exemption affidavit (Form 2368) with your local city or township assessor; it is not automatic.

Under state law, the filing deadlines are:

• June 1 to have the exemption apply to that year's summer tax levy and all later levies, or
• November 1 to have it apply to that year's winter tax levy and all later levies.

If you buy a home, confirm the PRE affidavit was filed at closing or file it yourself promptly — a missed filing means paying full school operating millage you didn't have to. If a home stops being your principal residence, you're required to file a rescission within 90 days, or you risk being billed back taxes, interest, and penalties.

Millage rates: why "your rate" is really many rates

Your Macomb County tax bill isn't set by one rate. It's the sum of separate millages levied by overlapping taxing authorities — your city or township, Macomb County, your local school district, intermediate school district, community college, library, and other authorities that appear on the ballot in your area. Homestead (PRE-exempt) and non-homestead property are taxed at different total millage because the PRE removes the school operating mills for owner-occupied homes. Because rates differ by city/township and by school district, Grove Hopper cannot publish one countywide millage figure that applies to every Macomb property — check your own tax bill or your local assessor's published millage rate sheet for the exact rate applied to your parcel.

When Macomb County property taxes are actually due

This is separate from — and unrelated to — the March appeal deadline. Michigan local units bill property taxes twice a year:

• Summer tax bill, typically issued around July 1, covering school and other summer-levied millages
• Winter tax bill, typically issued around December 1, covering county and other winter-levied millages

Exact due dates and any installment options are set locally. As one example, Warren's summer levy is payable from July 1 through August 31 (with a second-installment option running into winter), and its county-levied winter tax is payable December 1 through February 28. Confirm your own city or township's due dates and any interest/penalty schedule on your tax bill — paying late doesn't affect your right to appeal the assessment, and appealing your assessment doesn't excuse you from paying your bill on time.

Poverty exemption and other relief

Michigan law lets local Boards of Review grant a poverty exemption — a full or partial reduction of taxes — to homeowners who meet locally adopted federal poverty income guidelines and asset tests, using state forms (such as Form 5737 and the poverty exemption affidavit, Form 4988). Each city and township adopts its own guidelines and application deadline, and poverty exemptions are typically available at the March, July, and December Board of Review sessions, not just March. Contact your local assessor's office for your municipality's income guidelines, required documentation, and deadline. If you are a disabled veteran, ask your local assessor directly whether you qualify for a separate state-law exemption — Grove Hopper could not confirm current Macomb-specific eligibility details for this guide.

How to look up your property record

Start with your own city or township assessor's office — most Macomb communities post an online property/tax/water search (often a "BS&A Online" portal) where you can look up your parcel's assessed value, taxable value, PRE status, and tax history by address or parcel number. If you don't know which local unit your property is in, or need historical equalization data, Macomb County's Equalization Department (586-469-5260, 1 S Main St., 6th Floor, Mount Clemens, MI 48043) can point you to the right city or township assessor.

Grove Hopper's role

Grove Hopper is not a law firm and does not file property tax appeals or exemption applications on your behalf. This guide explains the Macomb County process so you can act — or hire licensed local counsel — with the right deadlines and documents in hand. Any savings from an appeal are never guaranteed and depend entirely on the facts of your assessment.