Michigan Property Tax Calculator (Assessed Value & Millage Rates)

Ranked #13 out of 50 states at an average effective rate of 1.18%, Michigan lands above the national median. Nationally, the average effective rate runs close to 1.0%, which puts Michigan modestly above the national average of roughly 1.0%.

As in most of the Midwest, property tax revenue in Michigan funds local school districts, county services, and municipal budgets rather than flowing through a state-level general fund, so the rate is effectively set locally even though the average is reported statewide.

Because assessment and appeal procedures in Michigan are administered locally rather than by a single statewide office, the exact timeline for a reassessment or an appeal can vary by county. The sections below outline the exemptions and appeal windows generally available to owners who want to contest a valuation.

Michigan tracks two numbers on every parcel: state equalized value, which is half of market value, and taxable value, which can rise only by the lesser of 5% or inflation each year until the property is sold. The sale uncaps it, so a Michigan buyer often inherits a much larger bill than the seller was paying.

None of that detail is asked for here. This calculator works one level up, applying Michigan's average effective property tax rate of 1.18% to the value you enter. That rate is the ratio of property taxes actually paid to home value across the state, so the assessment ratios, caps, and exemptions described above are already baked into it.

Working through it in order:

1. Start from taxable value. That is the capped figure, not the state equalized value, unless the property transferred last year.
2. Claim the principal residence exemption. It exempts an owner-occupied home from the 18-mill local school operating levy, which is a large share of the total.
3. Multiply by the effective rate. At 1.18%, a $400,000 home in Michigan comes to $4,720 a year before any exemption you enter above.
4. Divide by twelve for escrow. That same home works out to $393.33 a month set aside in a mortgage escrow account.
5. Compare it against your own bill. The uncapping on transfer means a Michigan effective rate depends heavily on how recently the home changed hands. Your county's number is the one that governs; this figure tells you whether it is roughly where a Michigan home of that value ought to land.

Using this calculator's baseline inputs: a $400,000 home in Michigan, taxed at the state's 1.18% average effective rate (rank #13 of 50 states).

1. Start with the assessed value. The home is assessed at its full $400,000.00 market value, with no homestead exemption applied in this baseline scenario.
2. Apply the effective rate. $400,000.00 × 1.18% = $4,720.00 in annual property tax, Michigan's statewide average effective rate.
3. Convert to a monthly escrow. Lenders typically collect property tax in twelve equal installments alongside principal and interest: $4,720.00 ÷ 12 = $393.33 per month.
4. Project a five-year hold. At a flat rate, five years of ownership totals $4,720.00 × 5 = $23,600.00, before any reassessment, exemption change, or millage increase.

At 1.18%, Michigan lands roughly in the middle nationally, ranking #13 of 50 states. That is a moderate but still material carrying cost for homeowners.

The engine multiplies taxable value by a single effective rate of 1.18%, so the twelve-row value sweep is a straight line with no threshold in it. The three questions it can answer are what the exemption is worth, what a change in value costs, and what value hits a target escrow figure.

Pricing the exemption. On the baseline $400,000 home the engine returns $4,720.00 a year with no exemption, or $393.33 a month. Apply the calculator's $25,000 homestead scenario and it returns $4,425.00 a year, or $368.75 a month. The exemption is therefore worth exactly $295.00 a year in Michigan, which is $25,000 multiplied by the 1.18% rate. That figure scales with the exemption and not with the home: a $25,000 exemption saves $295.00 on a $300,000 home and on a $3,000,000 home alike.

The marginal cost of the next unit. Each additional $10,000 of assessed value costs $118.00 a year. The engine returns $4,720.00 at $400,000 and $4,838.00 at $410,000. At $300,000 the annual bill is $3,540.00 and the monthly escrow $295.00; at $500,000 they are $5,900.00 and $491.67. There is no bracket anywhere in the sweep, so the cost per $10,000 is identical at the bottom and the top of the range.

The reverse question. Buyers usually work from an escrow ceiling rather than a tax figure. Holding the monthly Michigan escrow to $295.00 a month, or $3,600 a year, means an assessed value of $305,084.75, which the engine confirms exactly. Every further $100 a month of escrow tolerance corresponds to about $101,695 of additional assessed value.

Where the sweep table and the headline disagree. The twelve-row schedule steps assessed value from one sixth to two times the value entered, but it computes each row from the raw value, not from the value after the homestead exemption. Set the exemption to $25,000 and the headline drops to $4,425.00 while row 6 of the table, which sits at the entered $400,000, still reads $4,720.00. The gap is the $295.00 the exemption is worth, and it appears in every row of the table. The table is the correct answer to "what would this cost with no exemption at each value"; it is not a projection of the exempted bill.

A Michigan-specific caution about the exemption field. Michigan's Principal Residence Exemption works by exempting an owner-occupied home from the local school operating millage, not by subtracting a dollar figure from taxable value, and the size of that relief depends on the local millage rather than on any statewide number. The engine subtracts a flat dollar amount from value instead, so the $295.00 shown is a stand-in for relief of that magnitude and not a computation of the PRE. Michigan's separate cap on taxable value growth under Proposal A, which uncaps on transfer, is likewise absent from this code path.

What the single rate cannot express. 1.18% is a statewide average effective rate, and Michigan sets millage locally, so no individual parcel is taxed at exactly this figure. The engine holds one number per state, has no field for county or municipality, and applies no reassessment schedule of any kind. The rank of #13 of 50 is likewise a stored figure rather than something recomputed from the other 49 states inside this page.

• Specific hyper-local county and municipal millage district variations within Michigan.
• Special assessment district charges. Michigan cities and townships can form special assessment districts under state law to bill an additional charge for street, sidewalk, sewer, or water improvements to benefiting parcels, layered on top of the base millage.
• Commercial vs residential assessment classification differentials.
• Property tax appeal reductions or localized board of equalization adjustments.

• Confusing Market Fair Value with Assessed Basis: Some jurisdictions assess property at fractional ratios rather than 100% of market value.
• Failing to File Homestead Paperwork: Homestead exemptions are rarely automatic; homeowners must file timely paperwork with the county appraisal district.
• Underestimating Post-Sale Supplemental Assessments: Purchasing a newly constructed or reassessed property often triggers catch-up supplemental tax bills.
• Ignoring Property Tax Appeal Windows: Missing the annual 30-to-60 day statutory protest window forfeits the right to challenge over-assessed property values for that tax year.

• U.S. Census Bureau: American Community Survey (ACS) Real Estate Assessment Benchmark Data. census.gov/programs-surveys/acs
• Michigan Department of Treasury, the official state tax authority. michigan.gov/treasury

Also consulted: Michigan State Tax Commission: Property Tax Assessment Guidance.