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Every winter, homeowners across Wayne County open a Notice of Assessment from their city or township. For many, the number on that notice feels out of step with what they believe their home is worth. Michigan gives property owners a defined path to challenge that number, and for most homeowners the final stop on that path is the Michigan Tax Tribunal.

This guide walks through how assessments work in Michigan, how the appeal process moves from your local Board of Review to the Tribunal, which deadlines matter, and what kind of evidence the Tribunal expects to see. Whether you own a bungalow in Detroit, a colonial in Livonia, or a ranch in Taylor, the framework is largely the same.

One point that surprises many residents: Wayne County does not set your assessment. Your local assessor in the city or township where the property sits does. That means local schedules and procedures can vary, so always confirm dates and requirements with your own assessing office.

 

 

How Michigan Property Assessments Work

Before filing an appeal, it helps to understand the three values on your assessment notice. Each one plays a different role, and knowing which one you are challenging shapes the entire appeal.

 

True cash value, assessed value, and SEV

Michigan law defines true cash value as the usual selling price of a property, which courts treat as market value. Your local assessor estimates that value as of Tax Day, which is December 31 of the prior year. The state constitution requires property to be assessed at 50% of true cash value, and after county and state equalization that figure becomes your State Equalized Value, or SEV.

 

Taxable value and the Proposal A cap

Your tax bill is not based on SEV. It is based on taxable value, which is the lower of your SEV or your capped value. Under Proposal A, approved by voters in 1994, taxable value on a property that has not changed hands can rise each year by no more than 5% or the rate of inflation, whichever is less, plus adjustments for additions or losses to the property.

 

Uncapping after a sale

When a property transfers ownership, the cap comes off. In the year after the transfer, taxable value is reset to equal the SEV, and the cap begins again the following year. New buyers in Wayne County often see their first full tax bill jump for this reason, which is one of the most common triggers for a first look at an appeal.

 

Why this matters for an appeal

An appeal usually argues that the assessor’s estimate of true cash value is too high. Lowering SEV only lowers your taxes if the reduced SEV falls below your current taxable value. For a long-time owner whose taxable value sits well under SEV, a successful value appeal may not change the bill at all. For a recent buyer whose taxable value just uncapped to SEV, it can. Review your notice carefully, or ask your assessor, before deciding whether an appeal makes sense for your situation.

 

 

The Appeal Path: From Your Assessor to the Tribunal

For residential property in Michigan, the appeal process runs in a fixed order. Skipping a step, especially the Board of Review, can close the door on everything that comes after it.

 

Step 1: Talk to your local assessor (optional but useful)

Most assessing offices will review a notice informally before the Board of Review meets. This is a chance to confirm that the property record is correct, including square footage, bedroom and bathroom counts, basement finish, garage, and condition. Many disputes come down to a simple data error that can be fixed at this stage.

Detroit has a more formal version of this step. The City of Detroit runs an Assessor’s Review each February, which in 2026 ran from February 1 through February 22. The city describes this review as optional but recommended before going to the March Board of Review.

 

Step 2: Protest at the March Board of Review (required)

The March Board of Review is a local board, separate from the assessor, that hears challenges to the current year’s assessment. For residential property, a protest at the March Board of Review is required before you can appeal to the Michigan Tax Tribunal. Each city and township sets its own hearing dates and petition deadline, usually in the first few weeks of March, and those dates are printed on your Notice of Assessment.

In Detroit, the 2026 March Board of Review petition deadline was March 9 at 4:30 p.m., and the city required hearings to be held in person. Suburban Wayne County communities such as Dearborn, Livonia, Westland, and the Grosse Pointes run their own boards on their own schedules.

The Board of Review issues a written decision. If you disagree with it, that decision becomes the starting point for the next step.

 

Step 3: Appeal to the Michigan Tax Tribunal

The Michigan Tax Tribunal is a state administrative court that hears property tax disputes. It is independent of your local assessor and Board of Review, and it decides cases based on the evidence both sides present. Most residential appeals are heard in its Small Claims Division, covered in detail below.

 
A note on July and December Boards of Review

Many communities also convene a Board of Review in July and December. These sessions handle a narrower set of issues, such as clerical errors, mutual mistakes of fact, and certain exemptions. They are generally not a substitute for a March protest on a value dispute.

 

 

Key Deadlines for Wayne County Homeowners

Missed deadlines are one of the most common reasons residential appeals fail before anyone looks at the evidence. The Tribunal’s jurisdiction depends on timely filing, so these dates are worth putting on a calendar the day your notice arrives.

  1. December 31: Tax Day. Your assessment reflects the property’s condition and market value as of this date.
  2. Late January to February: Notices of Assessment are mailed. In Detroit, the optional Assessor’s Review runs during February.
  3. Early to mid March: Your local March Board of Review meets. The petition deadline and hearing dates vary by community and appear on your notice.
  4. July 31: Deadline to file a petition with the Michigan Tax Tribunal for residential property, after a timely March Board of Review protest.
  5. 35 days after a July or December Board of Review decision: The window to take certain decisions from those sessions to the Tribunal.

For comparison, commercial and industrial real property follows a different track, with a May 31 Tribunal deadline and no Board of Review requirement. If your property is classified as anything other than residential, confirm which deadline applies to you.

 

Inside the Small Claims Division

The Tribunal has two divisions: the Entire Tribunal, a formal venue where parties are usually represented by attorneys, and the Small Claims Division, an informal venue built for cases like a typical homeowner’s. Most residential value appeals in Wayne County land in Small Claims.

 

Filing the petition

An appeal starts with a Small Claims petition, filed with the Tribunal by the July 31 deadline. You will need your parcel number, the property classification, the values you are contesting, the values you believe are correct, and a copy of your March Board of Review decision. The Tribunal accepts electronic filing as well as mail.

Under the Tribunal’s fee rules, there is no filing fee in Small Claims for a value appeal when the property carries a principal residence exemption of at least 50% for every year at issue. Other residential properties, such as rentals or second homes, pay a fee based on the value in dispute.

 

What happens after you file

Once the petition is accepted, the Tribunal issues a docket number and the local unit, such as the City of Detroit or your township, files an answer. The Tribunal then sends a Notice of Hearing at least 45 days before the hearing date. Formal discovery is generally not available in Small Claims, which keeps the process simpler but means you need to build your own case file.

 

The 21-day evidence rule

This is the rule that catches the most homeowners. Any documents you want the Tribunal to consider must be filed with the Tribunal and served on the other party at least 21 days before the hearing. Evidence that is not exchanged on time may be excluded, even if it is strong.

 

The hearing itself

Small Claims hearings are typically about 30 minutes and held by telephone, though parties can ask for an in-person or video hearing. A hearing referee or administrative law judge listens to both sides, asks questions, and reviews the documents. If you cannot attend, you can ask in advance to have your case decided “on the file” based on your written evidence alone.

After the hearing, a proposed decision is issued, and the parties have a set period to file exceptions before it becomes final. Tribunal staff can explain procedures but cannot advise you on how to prepare or present your evidence.

 

 

Building Your Evidence

In a Tribunal appeal, the petitioner carries the burden of proving the property’s true cash value. The Tribunal makes its own independent determination based on the record, so the strength and relevance of your documentation matter far more than how strongly you feel about the number.

 

Evidence the Tribunal can use

  • Sales of comparable homes in your area that closed near Tax Day, with notes on how they differ from your property
  • Photos documenting condition issues as of Tax Day, such as roof wear, foundation problems, water damage, or outdated mechanical systems
  • Contractor estimates or inspection reports that tie those issues to a cost
  • Corrections to the property record card, such as square footage, finished basement area, or bathroom count
  • An independent appraisal prepared by a Michigan licensed or certified appraiser with an effective date matching the Tax Day for the year under appeal

 

Arguments that tend not to work

  • Your tax bill went up by more than you expected
  • A neighbor with a similar home pays less in taxes
  • You cannot afford the increase
  • Online automated estimates without supporting sales data

 

Tax bill differences between neighbors are often explained by uncapping rather than assessment error, which is why the Tribunal focuses on market value evidence instead.

 

 

Where an independent appraisal fits

An appraisal for a tax appeal is a non-lending assignment. It is not tied to a mortgage, so the appraiser’s client is you, and the report can be written for the specific purpose of the appeal. A key detail is the effective date: the appraiser should value the property as of December 31 of the prior year, not as of the day they visit.

A well-supported appraisal gives the Tribunal a structured market analysis, including comparable sales, adjustments, and a reconciliation of the data. It does not guarantee a particular outcome, and the Tribunal will weigh it alongside the local unit’s evidence. Value conclusions are always specific to the property and the local market.

Banks Valuation provides non-lending appraisals for property tax appeals. If you are preparing for a Board of Review protest or a Tribunal hearing, reach out early so the report is complete before the 21-day evidence deadline.

 

Common Mistakes to Avoid

Skipping the March Board of Review is the most costly error, because for residential property it generally ends your right to appeal to the Tribunal that year. Close behind is missing the July 31 filing deadline or the 21-day evidence exchange.

Other common problems include relying on sales from well after Tax Day, appealing a value change that will not lower taxable value, and arguing about the tax bill instead of the market value. Each of these is avoidable with a little preparation.

 

Frequently Asked Questions

 

Do I have to go to the Board of Review before the Michigan Tax Tribunal?

For residential property, yes. A protest at your local March Board of Review is generally required before you can file a residential value appeal with the Tribunal. Commercial and industrial real property can go directly to the Tribunal by May 31.

 

What is the deadline to appeal to the Michigan Tax Tribunal for a home in Wayne County?

For residential property, the petition must be filed by July 31 of the tax year under appeal. Your March Board of Review protest must also have been timely for the Tribunal to hear the case.

 

Does it cost money to file a Small Claims appeal?

There is no filing fee for a Small Claims value appeal if the property has a principal residence exemption of at least 50% for each year at issue. Other residential properties pay a fee based on the value in dispute.

 

Do I need an attorney for the Small Claims Division?

No. The Small Claims Division is designed for homeowners to represent themselves, and hearings are informal. Some homeowners still choose to hire an attorney or authorized representative, particularly for more complex properties.

 

Can I use my purchase price as evidence?

A recent arm’s-length purchase can be relevant evidence, but Michigan law says the purchase price is not automatically the property’s true cash value. The Tribunal will consider it alongside other market data from around Tax Day.

 

Will a successful appeal lower my taxes?

It depends on your taxable value. If the reduced SEV falls below your current taxable value, your taxable value and your bill can go down. If your taxable value is already well below SEV because of the Proposal A cap, a lower SEV may not change what you owe.

 

 

Wayne County Tax Appeal Checklist

Use this list to keep your appeal on track from the day your notice arrives.

  • Review your Notice of Assessment and compare SEV, capped value, and taxable value
  • Request your property record card and check every detail for accuracy
  • Note your local March Board of Review petition deadline and hearing dates
  • In Detroit, consider filing with the February Assessor’s Review
  • File your March Board of Review petition and attend your hearing
  • Keep a copy of the Board of Review’s written decision
  • Gather comparable sales, condition photos, and any repair estimates as of Tax Day
  • Order an independent appraisal early if you plan to use one
  • File your Small Claims petition with the Tribunal by July 31
  • File and serve all evidence at least 21 days before your hearing

 

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