Detroit Property Taxes for Landlords: Lookup, Assessments, and Appeals

Detroit property taxes are calculated by multiplying a property's taxable value by the total millage rate, and rental owners pay the higher non-homestead rate because rentals don't qualify for Michigan's Principal Residence Exemption. You can look up any Detroit parcel's assessed value, taxable value, and tax history for free on the City's BS&A Online portal, and check for delinquent taxes on the Wayne County Treasurer's site.

The catch for investors is that the seller's tax bill is almost never your tax bill. Michigan resets a property's taxable value the year after it sells, and the jump can be large. This guide covers how the system works, how to look up a property, how to appeal, what happens when taxes go unpaid, and how to put the right number into your underwriting before you buy.

How do Detroit property taxes work?

Every Michigan property carries three values on its assessment notice. Knowing the difference is what separates a good underwrite from a bad surprise.

Assessed value (and SEV). Michigan law requires property to be assessed at 50% of its market value, which the City of Detroit calls "true cash value" in its Office of the Assessor FAQs. The State Equalized Value (SEV) is the assessed value after county and state equalization. For most homes, assessed value and SEV are the same number.

Taxable value. This is the number your taxes are actually calculated on. Under Proposal A, the 1994 Michigan ballot measure, taxable value can rise each year by no more than the rate of inflation or 5%, whichever is less, even if the market value climbs faster. For 2026, the State Tax Commission set that inflation cap at 2.7% (Bulletin 14 of 2025). Taxable value can never exceed SEV.

Millage. A mill is $1 of tax per $1,000 of taxable value. Your total millage stacks the City of Detroit, Detroit Public Schools Community District, Wayne County, the library, the community college, and state levies. Multiply taxable value by total mills, divide by 1,000, and you have the annual tax.

Why does the tax bill jump after a Detroit property sells?

Because Proposal A's cap ends when ownership changes. The City's assessor explains that a transfer of ownership causes taxable value to "uncap" in the calendar year after the sale, so taxable value resets to equal the assessed value (Office of the Assessor FAQs).

A seller who has owned a house for 15 years may have a taxable value far below the current SEV. Their bill looks cheap. Yours will not be. The new owner also has to file a Property Transfer Affidavit within 45 days of the transfer, and the City charges daily penalties for late filing.

Why do rentals pay more than owner-occupied homes?

Michigan's Principal Residence Exemption (PRE) exempts an owner-occupied home from 18 mills of school operating tax, according to the City of Detroit assessor. To qualify, the owner has to live in the home as their primary residence. A rental property fails that test by definition, so it pays the full non-homestead rate.

Two practical points for investors:

• If you buy from an owner-occupant, the PRE goes away. The seller's bill reflects the exemption. Yours won't, on top of the uncapping.
• If you move out and rent your former home, you have to rescind the exemption. Michigan Treasury handles PRE claims and rescissions (see the Treasury PRE page). Keeping a PRE on a rental can lead to back taxes, interest, and penalties when the state audits it.

How do I look up property taxes for a Detroit property?

Detroit runs its assessment and tax records through BS&A Online, which the City links from the Office of the Assessor page. Delinquent taxes from prior years live with Wayne County, so a complete check uses both.

Step 1: Check current assessment and taxes on BS&A Online

1. Go to the City of Detroit's BS&A Online page.
2. Search by address, owner name, or parcel number.
3. If you use a parcel number, include the period or dash in the ninth position (for example 12345678. or 12345678-9). Searches without it often come back empty.
4. Open the record and review the assessing tab (assessed value, SEV, taxable value, property class, PRE percentage, and the last sale) and the tax tab (summer and winter bills, amounts paid, and balances).

Things to look for as an investor:

• PRE percentage. If it shows 100%, the current bill includes the homestead exemption. Your bill won't.
• Gap between SEV and taxable value. A big gap means a big jump after you buy.
• Property class. Make sure a house you plan to rent is classed as residential.
• Payment history. A pattern of late or missing payments tells you something about the seller and the property.

Step 2: Check for delinquent taxes with Wayne County

Under state law, unpaid City of Detroit real property taxes transfer to the Wayne County Treasurer for collection on March 1 of the following year (City of Detroit property tax page). That means a clean current-year record on BS&A does not prove the parcel is clean.

1. Go to the Wayne County Treasurer's online tax search.
2. Search by parcel number (same period-or-dash format) or by address.
3. Review any delinquent years, the amount due, and whether the parcel is in forfeiture.

A title company should catch delinquent taxes before closing, but checking yourself before you make an offer saves time and keeps you from overpaying.

Step 3: Estimate the tax as a non-homestead owner

The Michigan Department of Treasury publishes a free Property Tax Estimator that uses current millage rates by local unit and school district. Enter Detroit, the school district, and the SEV (not the seller's taxable value), and choose the non-homestead option. That gives you a much more realistic year-two tax number than the seller's last bill.

How do I appeal my Detroit property assessment?

If your assessed value is higher than half of what the property is actually worth, you can appeal. For a rental, the most common reason is an assessment that doesn't reflect the property's condition, such as fire damage, a missing roof, or a gutted interior.

The City of Detroit lays out a three-step process on its Property Assessment Appeal Information page:

1. Assessor's Review (optional). An informal review in February. In 2026 the window ran February 1 through February 22.
2. March Board of Review (required for residential). This is the step you can't skip. In 2026, petitions were due by March 9 at 4:30 p.m., and hearings ran March 4 through March 28. You can file online through the City's March Board of Review portal or in person at the Detroit Taxpayer Service Center, 2 Woodward Avenue, Suite 130.
3. Michigan Tax Tribunal (state level). If the Board of Review denies you, you can appeal to the Michigan Tax Tribunal. Commercial and industrial parcels generally must file by May 31. Residential parcels generally have until July 31. Confirm your deadline with the Tribunal for your property class and tax year.

Dates change every year, so check the City's appeal page each January. Watch for your Notice of Assessment early in the year, since it starts the clock on the review period.

What do I need to file an appeal?

You need to show standing, meaning you have a legal interest in the property. The City accepts items like the assessment notice in your name, a deed or transfer affidavit, a land contract, or a receipt showing you paid the taxes. If someone files for you, they need a signed letter of authorization (appeal information page).

For evidence, bring what a buyer or appraiser would care about:

• Your purchase price and closing statement, if you bought recently in an arm's-length sale
• Photos of the property's condition as of December 31 (Michigan's assessment date)
• Contractor estimates for major repairs
• Recent sales of comparable homes nearby

What about the July and December Boards of Review?

Detroit also holds a July Board of Review (the Tuesday after the third Monday in July) and a December Board of Review (the Tuesday after the second Monday in December). These sessions handle narrower issues like clerical errors, mutual mistakes of fact, and certain exemptions, not general valuation disputes. If you missed the March deadline because your assessment is simply too high, these boards usually can't help.

What happens if Detroit property taxes go unpaid?

Wayne County runs a firm schedule, and it ends with the county taking title. Based on the Wayne County Treasurer's forfeiture and foreclosure timeline, here is how a missed tax year plays out:

In plain terms, you have roughly two years after a tax year goes delinquent before you lose the property. Interest and fees pile up fast along the way. Wayne County offers payment plans, and its tax information line is (313) 224-5990.

Two lessons for landlords:

• Escrow or calendar your taxes. If you own free and clear, nobody is paying them for you. A property manager who handles your books should track every due date.
• Foreclosed properties feed the auction market. The same pipeline that costs one owner a house creates buying opportunities for another. If you're looking at auction properties, read our guide to buying from the Detroit Land Bank and get help with auction and acquisition guidance before you bid.

How should I budget property taxes when underwriting a Detroit rental?

Never underwrite off the seller's tax bill. Build your own number using the uncapped, non-homestead value, because that's what you'll pay starting the year after you close.

Here's a simple process:

1. Pull the SEV from BS&A Online. This is your best estimate of next year's taxable value after uncapping.
2. Sanity-check the SEV against your price. SEV should land near half the property's market value. If you're paying far more than twice the SEV (for example, after a full renovation), expect the assessment to rise in later years as the assessor catches up.
3. Run the Treasury estimator with the non-homestead setting to get the annual tax.
4. Divide by 12 and treat it as a fixed monthly expense, alongside insurance and management.
5. Add a buffer for year-over-year increases up to the inflation cap, and for reassessment after major improvements.

Worked example (illustration only)

The numbers below are made up to show the math. They are not real millage rates or a real property. Use the Treasury estimator for actual rates.

• You buy a Detroit single-family home for $100,000.
• The seller lived there for years. Their taxable value is $22,000, they have a 100% PRE, and their bill is low.
• BS&A shows the current SEV is $45,000.
• Assume a total non-homestead rate of 80 mills (illustrative).

Year after purchase: taxable value uncaps to $45,000. Tax = $45,000 x 80 / 1,000 = $3,600 a year, or $300 a month.

If you had underwritten off the seller's bill, you might have budgeted a fraction of that. On a house renting for $1,200 a month, that difference can turn a property with positive cash flow into one that loses money every month. For more on what Detroit homes actually rent for, see our Detroit rent breakdown.

Other tax items worth checking before you buy

• Property class and exemptions. Confirm the parcel isn't carrying an exemption or abatement that ends when it changes hands.
• Special assessments. Check the tax bill for line items beyond regular millage.
• Rehab plans. A major renovation can lead to a higher assessment. Build that into your hold-period numbers, not just year one.

This is exactly the kind of number that sinks out-of-state buyers who rely on listing data. If you're buying from a distance, our guide to investing in Detroit from out of state covers the rest of the due-diligence checklist.

How can Great Lakes PMG help?

Great Lakes Property Management Group is a licensed Michigan real estate brokerage based at 16554 Wyoming in Detroit. We've worked in the Detroit market since 2006 and completed more than 350 Detroit renovations.

• Before you buy: Our Detroit investment consulting is a flat $2,500 per property and covers sourcing, acquisition and auction guidance, and rehab strategy. That includes building a realistic tax number into your underwriting so the deal still works after the uncapping.
• After you buy: Our Detroit property management is 10% of rent collected. See how management fees compare across Detroit.

Want to see how this plays out on real deals? Read our case studies, or get in touch and we'll help you underwrite your next Detroit rental with the real tax number.

Frequently asked questions

How do I look up Detroit property taxes?

Search the property by address or parcel number on the City of Detroit's BS&A Online portal to see assessed value, taxable value, and current tax bills. Then check the Wayne County Treasurer's site for any delinquent prior-year taxes.

Why are property taxes higher on Detroit rental properties?

Rentals don't qualify for Michigan's Principal Residence Exemption, which removes 18 mills of school operating tax from owner-occupied homes. Rental owners pay the full non-homestead rate.

Will my Detroit property taxes go up after I buy?

Usually, yes. Michigan uncaps taxable value the year after a sale, so it resets to the assessed value. If the seller owned the home for a long time or had a homestead exemption, your bill can be much higher than theirs.

When is the deadline to appeal a Detroit property assessment?

The March Board of Review is the key deadline for residential property. In 2026, petitions were due March 9. Dates change each year, so check the City of Detroit's appeal information page every January.

What happens if I don't pay Detroit property taxes?

Unpaid taxes transfer to the Wayne County Treasurer on March 1 of the following year. If they stay unpaid, the property is forfeited the next March 1 and foreclosed the year after that, with title passing to the county.

Do I need to pay taxes on a vacant Detroit rental?

Yes. Property taxes are owed whether or not the property is rented, so budget for them during vacancies and renovations.