Oakland County · Official 2025 state millage

Novi property taxes & housing data

Novi is taxed at 27.1551–37.1177 mills across 8 school districts. That is 7.23 mills below the Oakland County median and 5.45 mills below the Southeast Michigan median — the 5th lowest of 52 municipalities in the county, and 74 of 236 region-wide.

Rates by school district

School districtHomesteadNon-homestead$250,000$350,000$500,000
TR-Novi-Wl Transfer27.155127.1551$3,394$4,752$6,789
Walled Lake Consolidated Schools32.042649.7006$4,005$5,607$8,011
TR-Novi-Nrthvl Trans33.724251.7242$4,216$5,902$8,431
South Lyon Community School District34.155152.1551$4,269$5,977$8,539
Northville Public School District34.519552.5195$4,315$6,041$8,630
Novi Community School District36.322453.3094$4,540$6,356$9,081
TR-Slyon-Novi Transfe36.322453.3094$4,540$6,356$9,081
TR-Nrthvl-Novi Trans37.117754.1047$4,640$6,496$9,279

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. Novi spans 8 school districts, from 27.1551 mills (TR-Novi-Wl Transfer) to 37.1177 mills (TR-Nrthvl-Novi Trans). On a $350,000 home that is $1,743 a year — $145 a month — decided by which street you buy on. Most listing sites do not show you this.

How Novi compares in Oakland County

Municipality Lowest millageAnnual tax on $350,000
Groveland Township23.5404$4,120
Commerce Township24.5296$4,293
Oakland Township24.6821$4,319
Southfield Township25.6381$4,487
Novi27.1551$4,752
Addison Township27.4430$4,803
Novi Township27.5569$4,822
Holly Township27.8444$4,873
Rose Township28.4752$4,983

← Southfield Township (lower)  ·  Addison Township (higher) →

For sale in Novi right now

114 active listings in Novi — 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, ©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 Novi with another community

Novi has 20 side-by-side comparisons, 17 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 Novi.

Comparison Their lowest millageAnnual tax on $350,000 vs Novi
Novi vs Northville · same schools42.1693$7,380+$2,627
Novi vs South Lyon · same schools42.1483$7,376+$2,624
Novi vs Walled Lake · same schools40.9991$7,175+$2,423
Novi vs Northville · same schools39.9709$6,995+$2,243
Novi vs Farmington Hills · same schools39.4568$6,905+$2,153
Novi vs Wixom · same schools35.8219$6,269+$1,517
Novi vs Northfield Township · same schools35.4789$6,209+$1,457
Novi vs Northville Township · same schools35.1832$6,157+$1,405
Novi vs Milford Township · same schools33.3601$5,838+$1,086
Novi vs Lyon Township · same schools31.6481$5,538+$786
Novi vs West Bloomfield Township · same schools31.4531$5,504+$752
Novi vs Orchard Lake · same schools29.8531$5,224+$472
Novi vs Commerce Township · same schools24.5296$4,293−$459
Novi vs Oakland Township24.6821$4,319−$433
Novi vs Green Oak Township · same schools25.3046$4,428−$324
Novi vs White Lake Township · same schools28.7703$5,035+$283
Novi vs Southfield Township25.6381$4,487−$265
Novi vs Salem Township · same schools26.6161$4,658−$94
Novi vs Novi Township · same schools27.5569$4,822+$70
Novi vs Addison Township27.4430$4,803+$50

What it's like to own in Novi

Beyond the tax rate, three things shape what owning in Novi 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

1990

average year built · 2,542 sqft average across 13,715 single-family homes

SEMCOG Buildings_2024

Lead in drinking water

0 ppb

90th percentile for Novi, City Of · 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

3.2 pCi/L

average across 1,367 home tests · 24% above the EPA 4 pCi/L action level — elevated. ZIPs 48375, 48374, 48377, 48167.

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 Novi, Michigan?

Novi is taxed at 27.1551–37.1177 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 $4,752 a year.

Does the tax rate change by address within Novi?

Yes. Novi spans 8 school districts and the rate runs from 27.1551 to 37.1177 mills depending on the district your address falls in — a difference of $1,743 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 Novi?

About $4,752 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 Novi 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 Novi compare with the rest of Oakland County?

It is the 5 lowest of 52 municipalities in Oakland County and 74 of 236 across the eight-county region — 7.23 mills below the county median.

Is down payment assistance available for homes in Novi?

Likely, but verify per program: 88% of the 505 Novi 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 Novi 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 Novi — 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.

Get this run on a specific address

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