Property Tax Due Dates in Wisconsin

Wisconsin property taxes are administered at the municipal level — cities, towns, and villages each have their own assessor. Property is assessed at its full market value (100%) in most municipalities, and the state Department of Revenue monitors assessment quality through annual equalization studies. Wisconsin's property tax bills include several built-in credits that are applied directly to the bill, automatically reducing what you owe. These credits — including the Lottery and Gaming Credit and the First Dollar Credit — are applied without requiring any application from the homeowner.

Wisconsin property taxes are due January 31 in full, or you may pay the first installment by January 31 and the second installment by July 31. Most municipalities allow splitting into two equal payments. Interest of 1% per month applies to late payments. Most municipalities offer online payment, payment by mail, and in-person payment at the municipal office. Some counties also accept payment at the county treasurer's office for delinquent taxes.

Wisconsin property tax credits and exemptions: Lottery and Gaming Credit — Owner-occupied primary residences automatically receive a credit funded by Wisconsin lottery and gaming revenues. The credit appears directly on the tax bill as a reduction. The credit amount varies annually (typically $100–$200). No application required. First Dollar Credit — A small credit applied to the first dollar of school, county, and municipal taxes on all real property. Applied automatically, no application required. Homestead Credit — An income-based refundable credit for low-income Wisconsin homeowners (and renters). Claim on the Wisconsin income tax return. Manufacturing and Agricultural Credits — Various credits for agricultural and manufacturing properties. Veterans and Surviving Spouses — Property tax exemptions and credits for qualifying veterans and their surviving spouses.

Wisconsin property tax appeals go to the local Board of Review: Deadline: The municipal Board of Review meets annually in May (or as scheduled by the municipality). You must file your objection and appear in person before the board during this period. Contact your local assessor for the exact date. Process: Present evidence that the assessed value exceeds fair market value — comparable sales or an independent appraisal. Wisconsin has specific rules about what evidence is admissible. Further appeal: Appeal Board of Review decisions to the Wisconsin Tax Appeals Commission or Circuit Court within 90 days.