How to Appeal Your Property Tax in Michigan: Step-by-Step Guide

Why Michigan Property Tax Appeals Matter

Michigan property taxes are above the national average, and the assessment system has unique features that can result in inflated tax bills — particularly after a home sale. The state uses three values for each property: State Equalized Value (SEV), assessed value, and taxable value. Understanding the difference between them — and knowing when your assessment is wrong — can save you hundreds or thousands of dollars per year.

Property tax appeals in Michigan follow a specific timeline with hard deadlines. Miss the March Board of Review window, and you’re locked into your assessment for the full tax year. This guide covers the exact steps, deadlines, and documentation you need to file a successful appeal.

Before starting, get a baseline estimate of what your taxes should be using our property tax calculator. If the number your municipality charges is significantly higher, you likely have grounds to appeal.

How Michigan Property Taxes Work: SEV, Assessed Value, and Taxable Value

Michigan’s system differs from most states in an important way. Under Proposal A (passed in 1994), your taxable value — not your assessed value — determines your actual tax bill. Here’s how the three values relate:

State Equalized Value (SEV): Set by the local assessor at approximately 50% of your property’s estimated market value. If your home is worth $300,000, the SEV should be roughly $150,000. The assessor recalculates this annually based on market conditions and property improvements.

Assessed Value: In Michigan, assessed value equals SEV. These terms are used interchangeably. Your assessment notice will show this number.

Taxable Value: This is what actually determines your tax bill. For existing homeowners, taxable value can only increase by the lesser of 5% or the rate of inflation each year — regardless of how much your SEV increases. This cap is the key protection under Proposal A. However, taxable value uncaps (resets to SEV) in the year after a property transfers ownership. This means new buyers often face a significant tax increase compared to the previous owner.

This gap explains why the previous owner’s tax bill on the same property can be dramatically lower than yours. The uncapping at sale is not appealable — it’s how the system works. What you can appeal is whether the SEV accurately reflects 50% of your property’s market value. For background, read our guide: Michigan property tax system explained.

Step 1: Review Your Assessment Notice (February)

Michigan municipalities mail assessment notices in February (sometimes called “Notice of Assessment, Taxable Valuation, and Property Classification”). This notice shows your new SEV, taxable value, and property classification. Review it as soon as it arrives — you have a narrow window to act.

Check for these common errors:

• Incorrect square footage — Compare the assessor’s records to your actual home. Finished basements, garages, and additions are frequently miscounted.
• Wrong property classification — Residential, commercial, agricultural, and industrial classifications carry different tax rates. Misclassification is rare but costly.
• SEV above 50% of market value — If your SEV is $175,000 but comparable homes are selling for $300,000 (suggesting a $150,000 SEV), you’re being over-assessed.
• Missing Principal Residence Exemption (PRE) — If you live in the home and haven’t filed your PRE, you’re paying an extra 18 mills on school operating taxes. This isn’t an appeal issue — it’s a filing issue (see our PRE guide).
• Condition not reflected — Major defects (foundation issues, outdated systems, flood damage) that reduce market value should lower your SEV.

Step 2: Gather Comparable Sales Data

The strongest property tax appeals are built on comparable sales — recent transactions of similar properties in your area that demonstrate your home’s actual market value. Gather 3-5 sales from the past 6-12 months that are:

• Within 1 mile of your property (closer is better)
• Similar in size (within 20% of your square footage)
• Similar in age and condition
• Similar in lot size
• Arm’s-length transactions (not foreclosures, family transfers, or bank-owned sales unless those are representative of your market)

Sources for comparable sales data include: county register of deeds (free, public records), Zillow/Redfin/Realtor.com (free estimates, actual sale prices), your local MLS (ask a real estate agent for a CMA — many will provide one for free), and Michigan’s BSA Online (state assessment database).

Calculate: if your comparables sold for an average of $280,000, your SEV should be approximately $140,000 (50% of market value). If your SEV is listed at $160,000, you have a $20,000 over-assessment — worth approximately $800/year in excess taxes at 40 mills.

Step 3: File with the March Board of Review

Every Michigan municipality holds a March Board of Review — this is your first and most important opportunity to contest your assessment. The board typically meets during the second week of March, with sessions on Monday and Tuesday (and sometimes Wednesday) to hear appeals.

Key deadlines:

• Board of Review convenes on the second Monday of March
• You must file a petition (Form L-4035 in most jurisdictions) before or during the board’s meeting dates
• Some municipalities accept petitions by mail if received before the first meeting date — check with your local assessor
• You can appear in person or submit a written petition (appearing in person is more effective)

What to bring:

• Completed petition form (L-4035 or your municipality’s equivalent)
• Your assessment notice
• Comparable sales data (printed, organized in a table)
• Photos of property condition issues (if applicable)
• Recent appraisal (if you have one — not required but strong evidence)
• Purchase agreement (if you bought recently and the sale price supports a lower SEV)

What to say: Keep it factual and brief. State your name, address, and the specific relief you’re requesting. Example: “My SEV is listed at $160,000. Based on comparable sales in my neighborhood over the past year, I believe the correct SEV is $140,000. Here are five comparable sales supporting that value.” Present your data and let the board review it.

The Board of Review can adjust your SEV, taxable value, and classification. They’ll typically notify you of their decision within 2-3 weeks by mail. If you disagree with the Board of Review’s decision, you have further appeal options.

Step 4: Appeal to the Michigan Tax Tribunal (If Needed)

If the March Board of Review denies your appeal or reduces your SEV by less than you believe is warranted, you can escalate to the Michigan Tax Tribunal. This is a state-level quasi-judicial body that handles property tax disputes.

Two divisions handle residential appeals:

Small Claims Division: For properties with an SEV of $100,000 or less ($200,000 market value). Filing fee is $50. No attorneys required. Decisions are final — no further appeal is possible. Hearings are informal and typically last 20-30 minutes.

Entire Tribunal: For properties with SEV above $100,000. Filing fee is $250. More formal proceedings. Decisions can be appealed to the Michigan Court of Appeals. Attorneys are common but not required.

Deadline: Petitions must be filed by July 31 of the tax year. Do not miss this deadline — it is absolute. File online through the Michigan Tax Tribunal’s e-filing system at michigan.gov/taxtrib.

The Tribunal typically schedules hearings 6-12 months after filing. Bring the same documentation you presented to the Board of Review, plus any additional comparable sales or appraisal evidence gathered since March. The Tribunal examines the evidence independently and can set a new value.

Step 5: Consider a Professional Appraisal

For properties where the disputed amount exceeds $2,000/year in taxes, a professional appraisal ($350-$500) can be a worthwhile investment. Licensed appraisers provide a credible, independent opinion of market value that carries significant weight with both the Board of Review and the Tax Tribunal.

An appraisal is particularly useful when:

• Your property has unique features that make comparable sales difficult to find
• The property has condition issues (foundation, environmental, structural) that reduce value
• You’re appealing to the Tax Tribunal (where evidentiary standards are higher)
• The disputed amount is large enough to justify the appraisal cost

Choose an appraiser who is licensed in Michigan and familiar with your specific market. Ask whether they have experience with tax appeal appraisals — the format and emphasis differ slightly from mortgage appraisals.

Common Mistakes in Michigan Property Tax Appeals

Appealing the taxable value uncapping: When you buy a property, the taxable value resets to SEV. This is not an error — it’s how Proposal A works. You can only appeal the SEV itself, not the uncapping mechanism.

Missing the March deadline: The Board of Review meets for a few days in March and then closes. If you miss it, you cannot appeal until the following year (with limited exceptions). Mark your calendar in February.

Using Zillow estimates as evidence: Automated valuations (Zestimates, Redfin estimates) are not accepted as evidence by the Board of Review or Tax Tribunal. Use actual sale prices of comparable properties, not algorithm-generated estimates.

Comparing to unequal properties: A comparable sale must be genuinely comparable. A 1,200 sq ft ranch is not comparable to a 2,400 sq ft colonial, even if they’re on the same street. The Board of Review will reject poorly matched comparables.

Getting emotional: The Board of Review hears dozens of appeals. Present facts, not feelings. “I can’t afford my taxes” is not grounds for an assessment reduction. “My SEV exceeds 50% of market value based on these comparable sales” is.

How Much Can You Save?

The savings depend on the size of the over-assessment and your local millage rate. Here’s a quick reference:

A successful appeal doesn’t just save money for one year — the corrected SEV becomes the baseline for future assessments. A $10,000 SEV reduction today saves $350-$450/year for as long as you own the home, compounding into thousands of dollars over a typical ownership period. Pair this with proper Principal Residence Exemption filing to maximize your savings.

Frequently Asked Questions

Can I appeal my property taxes every year?

Yes. You can petition the March Board of Review annually. If market conditions have changed, new comparable sales have occurred, or your property’s condition has deteriorated, you can file a new appeal each year. There’s no penalty for filing — the worst outcome is that your assessment remains unchanged.

Will appealing my property taxes trigger an inspection?

Possibly. The assessor may request an interior inspection to verify your property’s condition, especially if you claim condition-related reductions in value. You have the right to refuse an interior inspection, but doing so may weaken your appeal. If your appeal is based solely on comparable sales data (not property condition), an inspection is less likely.

Do I need a lawyer to appeal my property taxes?

No. The March Board of Review process is designed for homeowners to represent themselves. At the Tax Tribunal’s Small Claims Division ($100K SEV or less), the process is similarly informal. For Entire Tribunal cases on higher-value properties, an attorney or tax consultant can be helpful but isn’t required. Many successful appeals are filed by homeowners without legal representation.

What if I just bought my house — can I still appeal?

Yes, and recent buyers often have the strongest cases. Your purchase price is strong evidence of market value. If you paid $280,000 for your home and the SEV is set at $160,000 (implying a $320,000 market value), you can argue that the SEV should be $140,000 based on your actual arms-length transaction. The Board of Review gives significant weight to recent sales of the subject property. Run your expected tax bill through our property tax calculator to see if an appeal is worth pursuing.

What’s the difference between the Board of Review and the Tax Tribunal?

The Board of Review is a local body (city or township level) that meets in March. It’s your first required step. The Michigan Tax Tribunal is a state body that handles appeals of Board of Review decisions — you must go through the Board of Review first before petitioning the Tribunal. The Tribunal has a July 31 filing deadline and typically hears cases 6-12 months later. The Board of Review is free to petition; the Tribunal charges $50 (Small Claims) or $250 (Entire Tribunal). Start with the Board of Review — many appeals are resolved there without needing to escalate. For help estimating what your taxes should be, use our mortgage calculator which includes property tax estimates.