Troy property taxes & housing data
Troy is taxed at 30.6309–42.2594 mills across 7 school districts. That is 3.75 mills below the Oakland County median and 1.97 mills below the Southeast Michigan median — the 15th lowest of 52 municipalities in the county, and 101 of 236 region-wide.
Rates by school district
| School district | Homestead | Non-homestead | $250,000 | $350,000 | $500,000 |
|---|---|---|---|---|---|
| Royal Oak City School District | 30.6309 | 47.6000 | $3,829 | $5,360 | $7,658 |
| Bloomfield Hills School District | 34.2337 | 47.8501 | $4,279 | $5,991 | $8,558 |
| Avondale School District | 34.5094 | 52.5094 | $4,314 | $6,039 | $8,627 |
| Birmingham City School District | 34.8300 | 48.2094 | $4,354 | $6,095 | $8,708 |
| Warren Consolidated Schools | 35.9346 | 50.7972 | $4,492 | $6,289 | $8,984 |
| Troy School District | 36.0430 | 51.4634 | $4,505 | $6,308 | $9,011 |
| Lamphere Public School District | 42.2594 | 47.2025 | $5,282 | $7,395 | $10,565 |
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.
How Troy compares in Oakland County
| Municipality | Lowest millage | Annual tax on $350,000 |
|---|---|---|
| Orion Township | 29.0657 | $5,086 |
| Orchard Lake | 29.8531 | $5,224 |
| Lake Angelus | 30.3952 | $5,319 |
| Waterford Township | 30.4079 | $5,321 |
| Troy | 30.6309 | $5,360 |
| Rochester Hills | 30.8553 | $5,400 |
| Brandon Township | 30.9213 | $5,411 |
| West Bloomfield Township | 31.4531 | $5,504 |
| Bloomfield Township | 31.5648 | $5,524 |
← Waterford Township (lower) · Rochester Hills (higher) →
For sale in Troy right now
200 active listings in Troy — 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.
$349,900
3630 Wakefield DR · Troy
3 bd · 2 ba · 1,859 sqft
Listing courtesy of Real Estate One-Troy
$537,000
1392 Ogden DR · Troy
3 bd · 3 ba · 3,037 sqft
Listing courtesy of RE/MAX Eclipse
$248,900
3700 Old Creek Road · Troy
2 bd · 2 ba · 1,912 sqft
Listing courtesy of Remerica United Realty
$350,000
4632 Bradley CIR · Troy
3 bd · 3 ba · 1,541 sqft
Listing courtesy of EXP Z Real Estate
$409,000
1451 Wrenwood DR · Troy
4 bd · 3 ba · 1,795 sqft
Listing courtesy of The Agency Hall & Hunter
$230,000
1436 Minnesota RD · Troy
1 bd · 1 ba · 1,144 sqft
Listing courtesy of 3DX Real Estate LLC Troy
IDX provided courtesy of Realcomp II Ltd. via Match Realty LLC and Greater Metropolitan Association of REALTORS, MiRealSource, Realcomp II Ltd, ©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 2026-11-02T23:11+00:00; refreshed at least twice daily.
Waterfront in Troy: Rouge River — recorded sale prices and all-sports status for the lake.
Compare Troy with another community
Troy has 18 side-by-side comparisons, 15 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 Troy.
| Comparison | Their lowest millage | Annual tax on $350,000 | vs Troy |
|---|---|---|---|
| Troy vs Warren · same schools | 51.2043 | $8,961 | +$3,600 |
| Troy vs Southfield · same schools | 50.6993 | $8,872 | +$3,512 |
| Troy vs Madison Heights · same schools | 46.2962 | $8,102 | +$2,741 |
| Troy vs Huntington Woods · same schools | 43.6735 | $7,643 | +$2,282 |
| Troy vs Sterling Heights · same schools | 38.9277 | $6,812 | +$1,452 |
| Troy vs Birmingham · same schools | 38.1422 | $6,675 | +$1,314 |
| Troy vs Royal Oak · same schools | 37.9610 | $6,643 | +$1,283 |
| Troy vs Berkley · same schools | 36.3012 | $6,353 | +$992 |
| Troy vs Southfield Township · same schools | 25.6381 | $4,487 | −$874 |
| Troy vs Bloomfield Hills · same schools | 35.4018 | $6,195 | +$835 |
| Troy vs Auburn Hills · same schools | 32.4857 | $5,685 | +$325 |
| Troy vs Bloomfield Township · same schools | 31.5648 | $5,524 | +$163 |
| Troy vs West Bloomfield Township · same schools | 31.4531 | $5,504 | +$144 |
| Troy vs Orchard Lake · same schools | 29.8531 | $5,224 | −$136 |
| Troy vs Brandon Township | 30.9213 | $5,411 | +$51 |
| Troy vs Lake Angelus | 30.3952 | $5,319 | −$41 |
| Troy vs Rochester Hills · same schools | 30.8553 | $5,400 | +$39 |
| Troy vs Waterford Township | 30.4079 | $5,321 | −$39 |
Look up, pay and appeal your Troy taxes
Troy bills twice a year. The summer bill is issued July 1 and the winter bill December 1; most communities make them due September 14 and February 14, and anything still unpaid on March 1 moves to the county treasurer as delinquent, with interest added monthly. Both bills are collected by the Troy treasurer, so the balance on a specific parcel is on the city or township site first (most of Southeast Michigan uses BS&A Online for this) and on the county site once it is late.
- Oakland County Property Gateway — parcel and tax search for Oakland County addresses.
- Oakland County Treasurer — where a bill goes once it is delinquent: balances, payment plans and the hardship deferral.
- Estimate a bill before you look one up — the figure on the current owner's statement is capped; this gives you the uncapped one.
Appealing the assessment
Assessment notices go out in late February. If the assessed value is more than half of what the house would actually sell for, the appeal runs in two steps and the first one cannot be skipped: the March Board of Review in Troy (dates and the petition form are on the assessor's notice), then, if the board does not move, a petition to the Michigan Tax Tribunal by July 31 for residential property. The July and December boards do not re-value: they correct qualified errors (clerical mistakes, mutual mistakes of fact, a wrong principal residence exemption) and hear poverty exemptions. A successful appeal lowers the assessed value, not the millage — the 30.6309–42.2594 mills above apply to whatever value stands after it.
A home bought this year is a special case: the taxable value uncaps to the assessed value next year regardless of the appeal, so the number to check on the first notice after closing is the assessed value against the price you paid.
What it's like to own in Troy
Beyond the tax rate, three things shape what owning in Troy actually costs: the age of the homes, what the water utility reports at the tap, and what local air testing has turned up. Each figure below carries the date of the survey it came from.
Housing stock
1978
average year built · 2,224 sqft average across 24,568 single-family homes
SEMCOG Buildings_2024
Lead in drinking water
0 ppb
90th percentile for Troy · below Michigan's 12 ppb action level. Standard sampling — not comparable to systems that sample at the fifth liter.
EGLE / MDHHS water-system monitoring, periods ending 2025-12-31
Radon
2.23 pCi/L
average across 1,057 home tests · 12% above the EPA 4 pCi/L action level — elevated. ZIPs 48085, 48083, 48098, 48084.
MDHHS indoor radon test results by ZIP
Lead is measured at the water system, not the house — it cannot tell you whether a specific property has a lead service line. Radon is a ZIP-level test distribution, not a prediction for any one home; the EPA recommends testing every home regardless. Screening information only.
Common questions
What is the property tax rate in Troy, Michigan?
Troy is taxed at 30.6309–42.2594 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 $5,360 a year.
Does the tax rate change by address within Troy?
Yes. Troy spans 7 school districts and the rate runs from 30.6309 to 42.2594 mills depending on the district your address falls in — a difference of $2,035 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 Troy?
About $5,360 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 Troy 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 Troy compare with the rest of Oakland County?
It is the 15 lowest of 52 municipalities in Oakland County and 101 of 236 across the eight-county region — 3.75 mills below the county median.
How do I look up or pay my Troy property tax bill?
Summer and winter bills are collected by the Troy treasurer, so the balance on a parcel is on the municipality's own site (usually BS&A Online). Once a bill is delinquent — March 1 — it moves to the Oakland County Treasurer, whose parcel search covers every address in the county.
How do I appeal my Troy property tax assessment?
Petition the Troy March Board of Review first — the dates are on the assessment notice mailed in late February — and, if that fails, the Michigan Tax Tribunal by July 31 for residential property. The board step is mandatory; the Tribunal will not hear a residential appeal that skipped it. An appeal changes the assessed value, not the millage (30.6309–42.2594 mills).
Is down payment assistance available for homes in Troy?
Likely, but verify per program: 92% of the 651 Troy 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.
What your Troy 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 Troy — enter a price and the seller's current taxable value.
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.
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.