Property tax in Wisconsin generally runs between $17 and $22 per $1,000 of a property’s value, so a home assessed at $250,000 can expect a gross bill of roughly $4,250 to $5,500 a year before state-funded credits are subtracted. The exact figure depends on which county, municipality, and school district the property sits in, and three automatic credits plus a few income-based ones can bring the net bill down meaningfully.
How Mill Rates Determine Your Tax Bill
Your bill starts with a mill rate, which is the tax owed per $1,000 of your property’s value. A combined mill rate of 20.00 means you owe $20 for every $1,000 of assessed value, so a $200,000 home generates a $4,000 gross bill before credits.1Wisconsin Department of Public Instruction. Wisconsin School District Taxes and Levy Rates That total rate is actually the sum of four separate levies: county government, your city or town, your school district (usually the largest share), and your technical college district.
Rates vary widely because each district sets its own levy based on its budget. If a school district passes a referendum for new construction, the debt service gets folded into the school portion of the mill rate. A community with a large base of high-value commercial property can spread the burden across more assessed value, which keeps residential rates lower than in a community that relies mostly on homes.
Your tax bill will show two key numbers. The gross tax is your assessed value multiplied by the full mill rate. The net tax is what remains after the municipality subtracts three state-funded credits automatically. Special assessments or charges, if any, are then added back on to produce the amount you actually owe.2Wisconsin Department of Revenue. DOR School Levy Tax Credit
How Your Property Is Valued
The second input is the assessed value. Under Wisconsin law, local assessors must determine the full value of every parcel of real property, which is essentially the price a willing buyer would pay in a normal private sale.3Wisconsin State Legislature. Wisconsin Code 70.32 – Real Estate, How Valued Assessors look at recent comparable sales, current construction costs, and site characteristics.
Full revaluation is not required every year. Assessed values must stay within 10 percent of actual market value at least once every five years.4WI Dept of Revenue. 2022 Property Assessment Information When a municipality falls outside that range, the Department of Revenue can order a comprehensive revaluation.
If your assessed value changes from the prior year, you’ll get a notice. That notice gives you the right to attend an Open Book session with the assessor and, if you still disagree, to file an objection with the local Board of Review before the tax roll is finalized.5Department Of Revenue. DOR Board of Review Calendar Inquiry
Credits That Lower the Bill Automatically
Three state-funded credits are calculated by your municipality and subtracted directly from your bill. You do not apply for these on an income tax return.
School Levy Tax Credit
The school levy tax credit applies to every taxable property in the state, whether or not it is your primary residence. The state distributes a fixed pool, $1.275 billion as of 2025, to municipalities based on their share of statewide school levies, and each municipality then allocates the credit across properties in proportion to assessed value.2Wisconsin Department of Revenue. DOR School Levy Tax Credit The school tax levy line on your bill already reflects it, and a separate box shows the credit amount.
First Dollar Credit
The First Dollar Credit goes to every taxable parcel that has a real property improvement, meaning a building or structure on the land. It is not limited to primary residences; commercial and rental properties qualify too. The credit amount is recalculated each November based on available state funds and the number of qualifying parcels, and it splits equally across both installments if you pay in two payments.6Wisconsin Department of Revenue. DOR First Dollar Credit
Lottery and Gaming Credit
The Lottery and Gaming Credit is funded by Wisconsin’s lottery and pari-mutuel wagering proceeds and is reserved for homeowners who use a property as their primary residence on January 1 of the year the taxes are levied. You can claim only one primary residence. Manufactured and mobile homes qualify if the owner also owns the land and the home sits on a foundation connected to utilities.7Department Of Revenue. Wisconsin Lottery and Gaming Credit Program You must file an application with the county treasurer certifying your eligibility. The average credit per household was estimated at $193 for 2025–26 and $191 for 2026–27, though the actual amount varies by municipality.8Wisconsin State Legislature. Revenue – Lottery Administration
Credits You Claim on Your Income Tax Return
Two more credits can reduce what you ultimately pay, but you claim them when filing your Wisconsin income tax return rather than seeing them on the property tax bill.
Homestead Credit
The Homestead Credit targets low-income homeowners and renters. You must be a Wisconsin resident, at least 18 years old, and your household income must be below $24,680.9Wisconsin Department of Revenue. Homestead Credit Fact Sheet 1116 The maximum credit is $1,168. Because the formula factors in both income and the amount of property tax or rent paid, the credit phases down as income rises and reaches zero at the $24,680 ceiling. Renters qualify through a rent certificate from the landlord showing the portion of rent that went toward property taxes. You cannot claim the credit if someone else claimed you as a dependent on their federal return, unless you are 62 or older.10Wisconsin State Legislature. Homestead Tax Credit Informational Paper 13
Veterans and Surviving Spouses Property Tax Credit
This credit equals 100 percent of the real property taxes paid on a principal residence by an eligible veteran or their spouse. To qualify, the veteran must have a service-connected disability rating of 100 percent, or a 100 percent rating based on individual unemployability.11Wisconsin State Legislature. Veterans and Surviving Spouses Property Tax Credit Informational Paper 14 Unremarried surviving spouses of eligible veterans may also claim it. You pay the bill first and recover the full amount back as a credit at tax time.
Lower Rates for Farm and Forest Land
Not all land is taxed on market value. Agricultural land in Wisconsin is assessed based on the income it could generate from its rental for agricultural use.12Wisconsin State Legislature. Wisconsin Code 70.32 – Real Estate, How Valued Because farmland rental income is typically much lower per acre than what the land might sell for, use-value assessment substantially reduces the tax on working farms. Agricultural forest land and undeveloped land are assessed at 50 percent of their full market value, a provision effective since the January 1, 2004 assessments.
Enrolled forest acreage in Wisconsin’s Managed Forest Law program pays a flat per-acre tax instead of the standard property tax. The rates in effect through 2027 are:
- Land entered 2005 or later, open to public: $1.90 per acre
- Land entered 2005 or later, closed to public: $9.49 per acre
- Land entered before 2005, open to public: $0.72 per acre
- Land entered before 2005, closed to public: $1.68 per acre
These rates represent substantial savings compared to standard property tax on land with high market value.13Wisconsin DNR. Forest Tax Rates
Payment Deadlines and Late Penalties
Local municipalities mail tax bills in mid- to late-December. You have two options:
- Pay in full to your local municipal treasurer by January 31.
- Pay in two equal installments: the first half to the local treasurer by January 31, the second half to the county treasurer by July 31.
If the total tax on your property is less than $100, the installment option is not available and the full amount is due January 31.14Wisconsin State Legislature. Wisconsin Code 74.11 – Payment of Taxes
Missing the January 31 deadline makes the entire tax bill immediately delinquent and triggers interest at 1 percent per month. Your county or city may add a penalty of up to 0.5 percent per month on top of the interest, so the maximum combined charge reaches 1.5 percent per month.15Wisconsin State Legislature. Wisconsin Code 74.47 – Interest and Penalty on Delinquent Amounts Those charges accrue on any fraction of a month, so even a short delay adds a full month’s charge. Taxes that stay unpaid for several years, typically around three, can lead to a tax foreclosure proceeding in which the county seeks a court judgment to take ownership of the property.