Appealing Your Property Tax Assessment in Michigan: The March Board of Review and the Tax Tribunal

Every spring the county assessor mails West Michigan homeowners a letter with a number on it: the new assessed value of the house. For most owners the number is right, and the right move is to file the letter. For some, the number is high, and that is where the appeal process comes in. It is not hard to start, but it is unforgiving about deadlines, and the most common way a valid complaint dies is a missed window.

What you can actually appeal

You appeal the value, not the bill. The tax you pay is the taxable value multiplied by a stack of millages: the state school aid fraction, the county or township, the school district, the library, and any special district on the roll. The board of review does not set millages; a millage problem is a ballot question, not an appeal. What the board can review is the assessed value and the tentative taxable value that flows from it.

The anchor for a valuation appeal is state law's requirement that most residential property be assessed at one-half of its fair market value. So the question is not whether you like the number, but whether the value tracks what a house like this is selling for. If the number is off, you can argue for a lower value. The reverse is also true: the board can raise a value if your evidence points the wrong way, which is another reason not to file on a hunch.

New owners get a value reset when they buy. That reset is not appealable just because it raised the value; you appeal the same way everyone else does, by showing the new market value is wrong.

The March board of review is the main window

Each city and township in West Michigan runs its own March board of review, and it hears appeals of that year's assessed and tentative taxable values. The state publishes key dates every fall. The board holds its organizational meeting the Tuesday after the first Monday in March (March 3, 2026), and it does not hear appeals that day. Appeal hearings began on the second Monday, March 9, 2026, unless the city or township had adopted a Tuesday or Wednesday alternative in that same week, and the board finished its work by the first Monday in April.

The 2027 cycle follows the same statutory pattern. The board will organize on Tuesday, March 2, 2027, and appeal hearings are expected to begin on or near the second Monday, March 8, 2027, with the board's work ending by April 5. The assessor prints the hearing schedule on the notice, so treat the notice as the controlling document.

Hearings are public, and you can represent yourself without an attorney. Most residential appeals are handled by the owner, the assessor's office, and sometimes a broker or an appraiser.

How to build an appeal that gets heard

The board wants proof, not a complaint. The strongest cases rest on a few concrete things:

• Comparable sales of similar homes, recent, in the neighborhood where the property sits. Address, sale date, and price. Three or four solid comps beat a long letter of frustration.
• A documented factual discrepancy: assessor square footage that does not match the house, a detached structure that was omitted or should not have been included, land dimensions that do not match the recorded survey, or deferred maintenance the assessor did not account for.
• A clear ask: the value you want, the basis for it, and the evidence tied to it.

You do not need a professional appraisal to file, but one can help where the value is high or the comparables are not clean. File the appeal form your assessor's office provides, submit it before the hearing date, and keep proof of delivery. Then show up. Appeals argued on paper, with the owner absent from the hearing, get thin treatment.

When the board says no: the Tax Tribunal

A board of review decision can lower the value, hold it, or raise it, and the board's written decision spells out the next step. If you disagree, the next stop is the Michigan Tax Tribunal, the statewide body in Lansing. For residential property, the petition is due by July 31. Most residential cases go to the small claims division, where owners typically appear without an attorney, and the filing fee is modest. The deadline is the part that matters. It is not negotiable, and it runs from the start of the tax year, not from when you read the board's letter.

What the July and December boards can still fix

Here is where things get useful for owners who missed March. The July and December boards of review do not revalue property. They correct qualified errors for the current year and the year before, and the list is specific: clerical or mathematical errors in the assessment figures, a mutual mistake of fact between the assessor and the owner, errors measuring the physical dimensions of the property, the omission or inclusion of a part of the property, and errors in taxable status.

The 2026 dates for that round: the July board met the Tuesday after the third Monday of July, which was July 21, 2026, and the December board meets the Tuesday after the second Monday of December, which is December 15, 2026, unless the city or township has set an alternate start date in the same week.

So if your problem is a mismeasured figure or a structure left off the roll, the December board is the remedy, not the spring. If your problem is that the house is worth less than the roll says, that is a valuation case for March. A denial of a qualified error correction can be taken to the Tax Tribunal on a short deadline, so read the board's written decision for the time allowed.

A realistic look at the odds

Most appeals that get a value reduced do so on clean evidence: a handful of recent, on-record sales of similar homes, or a factual error the assessor can verify on a map. Appeals that are a letter of frustration about the market or the millage usually do not, because the board is not the audience for that argument.

Weigh the cost side. A successful appeal lowers the tax going forward; it does not usually refund taxes already paid. If the case is borderline, the time to build and argue it may cost more than the appeal is worth. For a house clearly worth less than the roll says, the math usually favors filing. For one right on the line, it often does not.

The short version

Appeal the value, not the bill. The March board of review is the main window, and it wants comparable sales and documented facts. The Michigan Tax Tribunal is the next stop for residential appeals, with a July 31 deadline. The July and December boards correct qualified errors only, and the December 15, 2026 meeting is the live round for owners who found a mismeasured square footage, an omitted structure, or a math error. Keep every submission in writing, and let the written decision tell you the next deadline.

This article is general information about Michigan property tax procedures, not tax or legal advice. Hearing dates are set locally, the state updates key dates each year, and deadlines vary by the type of appeal. Confirm the specifics for your property with your city or township assessor, the local board of review, or a tax professional.

If you are a homeowner in Grandville, Grand Rapids, or anywhere in West Michigan and this year's assessment notice does not look right, call or text me at (616) 856-1492. I can walk through the notice with you, pull comparable sales for the neighborhood, and tell you honestly whether an appeal is worth the effort before the deadline is gone.