Wayne County · Official 2025 state millage

Flat Rock property taxes & housing data

Flat Rock is taxed at 50.0835–53.9763 mills across 3 school districts. That is 0.00 mills below the Wayne County median and 17.48 mills above the Southeast Michigan median — the 22nd lowest of 43 municipalities in the county, and 203 of 236 region-wide.

Rates by school district

School districtHomesteadNon-homestead$250,000$350,000$500,000
Gibraltar School District50.083568.0835$6,260$8,765$12,521
Woodhaven School District50.731668.7316$6,341$8,878$12,683
Flat Rock Community School District53.976371.9763$6,747$9,446$13,494

Homestead (PRE) applies to your primary residence. Non-homestead applies to rentals and second homes. Dollar columns are the annual bill at the uncapped taxable value — half the purchase price — at the homestead rate.

Which side of the boundary matters here. Flat Rock spans 3 school districts, from 50.0835 mills (Gibraltar School District) to 53.9763 mills (Flat Rock Community School District). On a $350,000 home that is $681 a year — $57 a month — decided by which street you buy on. Most listing sites do not show you this.

How Flat Rock compares in Wayne County

Municipality Lowest millageAnnual tax on $350,000
Allen Park47.8721$8,378
Rockwood49.5771$8,676
Taylor49.8402$8,722
Hamtramck49.9446$8,740
Flat Rock50.0835$8,765
Gibraltar50.2453$8,793
Dearborn50.8704$8,902
Grosse Pointe52.2962$9,152
Grosse Pointe Shores Village52.4293$9,175

← Hamtramck (lower)  ·  Gibraltar (higher) →

For sale in Flat Rock right now

21 active listings in Flat Rock — the 6 newest below. Remember: every one of them uncaps the year after closing, so the bill you should budget is the uncapped one above, not the seller's.

IDX provided courtesy of Realcomp II Ltd. via Match Realty LLC and Realcomp II Ltd, Southeastern Border Association of REALTORS, ©2026 Realcomp II Ltd. Shareholders. The accuracy of all information, regardless of source, is not guaranteed or warranted. All information should be independently verified. Listings refreshed 2026-09-04T09:58-04:00; refreshed at least twice daily.

Compare Flat Rock with another community

Flat Rock has 11 side-by-side comparisons, 8 of them with a community that shares a school district — same schools, different bill. Dollar columns are the annual homestead bill on a $350,000 home at the uncapped taxable value, and the last column is the difference against Flat Rock.

Comparison Their lowest millageAnnual tax on $350,000 vs Flat Rock
Flat Rock vs Berlin Township · same schools22.6405$3,962−$4,803
Flat Rock vs Ash Township · same schools25.2584$4,420−$4,344
Flat Rock vs Brownstown Township · same schools27.5563$4,822−$3,942
Flat Rock vs Huron Township · same schools38.3702$6,715−$2,050
Flat Rock vs Romulus · same schools44.9077$7,859−$906
Flat Rock vs Woodhaven · same schools52.7444$9,230+$466
Flat Rock vs Dearborn50.8704$8,902+$138
Flat Rock vs Rockwood · same schools49.5771$8,676−$89
Flat Rock vs Taylor49.8402$8,722−$43
Flat Rock vs Gibraltar · same schools50.2453$8,793+$28
Flat Rock vs Hamtramck49.9446$8,740−$24

Common questions

What is the property tax rate in Flat Rock, Michigan?

Flat Rock is taxed at 50.0835–53.9763 mills for a homestead (principal residence) under the official 2025 Michigan Department of Treasury millage report. On a $350,000 home at the uncapped taxable value that is about $8,765 a year.

Does the tax rate change by address within Flat Rock?

Yes. Flat Rock spans 3 school districts and the rate runs from 50.0835 to 53.9763 mills depending on the district your address falls in — a difference of $681 a year on a $350,000 home. The district table above lists every rate.

How much are property taxes on a $350,000 home in Flat Rock?

About $8,765 a year at the homestead rate. Michigan taxes the taxable value, not the sale price, and after a sale that value uncaps to roughly half what you paid — so $350,000 is taxed on about $175,000.

Why is the tax bill on a Flat Rock listing lower than what I would pay?

Because the figure on the listing is the seller's. Michigan caps annual taxable-value growth while an owner keeps the property, and that cap is removed the year after it sells. The longer the seller owned it, the further their bill sits below yours.

How does Flat Rock compare with the rest of Wayne County?

It is the 22 lowest of 43 municipalities in Wayne County and 203 of 236 across the eight-county region — 0.00 mills below the county median.

Is down payment assistance available for homes in Flat Rock?

Likely, but verify per program: 100% of the 75 Flat Rock sales evaluated by Down Payment Resource over the last 12 months were flagged as potentially matching at least one assistance program. The flag is an indicator, not a promise — compare the programs and check your numbers.

Run your own numbers

What your Flat Rock taxes become after you buy

Michigan taxable value uncaps the year after a sale and resets to roughly half the purchase price. The calculator below is already set to Flat Rock — enter a price and the seller's current taxable value.

The one nobody else built

Uncapping calculator

When a Michigan home changes hands, its taxable value uncaps the following year and resets to roughly half the sale price. Buyers routinely get blindsided by a bill that's thousands higher than the listing showed. Here's your actual number.

Buyer Tool

What will your tax bill be after closing?

Your taxable value uncaps the year after closing and resets to roughly half the purchase price — so a $350,000 home is taxed on about $175,000, whatever the seller was paying. Enter the price and the current taxable value below.

236 municipalities across the 8-county Southeast Michigan region.
Most cities span several districts, and the rate difference between them can exceed 10 mills. This is the step every other calculator skips.
Auto-filled from the official 2025 state report. Override it with the exact rate from your tax bill if you have it.
Not the same as market value or SEV. This is what's capped today.
Non-homestead adds roughly 18 mills of school operating tax.
Your annual tax increase
Seller pays today
Your new taxable value
You'll pay after uncapping
Added to monthly escrow
Why this matters: the increase hits in the tax year after your closing — so your first year looks fine and year two jumps. Lenders often escrow off the seller's old bill, which creates a shortage and a payment increase you didn't plan for.

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