Wauwatosa property tax is a single annual bill that funds four jurisdictions at once: the City of Wauwatosa, Milwaukee County, the Wauwatosa School District, and Milwaukee Area Technical College. The amount you owe is your property’s assessed value multiplied by a combined rate expressed in dollars per $1,000 of value. You can pay it in full by January 31 or in three interest-free installments due January 31, March 31, and May 31. Credits already printed on the bill lower the net, and additional relief claimed through your state income tax return can lower it further.
How Your Bill Is Calculated
The City Assessor sets a value for every taxable parcel in Wauwatosa. Under state law, that value is supposed to reflect what the property would sell for in an ordinary private sale, based on comparable arm’s-length transactions and other factors accepted appraisal practice considers.1Wisconsin State Legislature. Wisconsin Code 70.32 – Real Estate, How Valued Zoning restrictions, conservation easements, and environmental contamination factor in when they’d affect what a buyer would pay.
Each of the four taxing jurisdictions sets its own levy to fund its budget, and those levies are rolled into a single combined rate applied to your assessed value. To estimate your bill, divide the assessed value by 1,000 and multiply by the combined rate. A home assessed at $350,000 at a combined rate of $22 per $1,000 would owe $7,700 before credits. The rate changes every year because each jurisdiction adopts a new budget each year, so last year’s number is only a rough guide. The current rate prints on your annual bill.
Wauwatosa completed a citywide revaluation in 2025; the one before that was in 2019.2City of Wauwatosa. Revaluation Between revaluation years, the assessor still adjusts individual properties for new construction, additions, or significant condition changes, but neighboring homes that haven’t changed may sit at slightly stale values until the next full cycle.
When the Bill Arrives and How to Pay
By law, the city must mail tax bills by the third Monday in December, though they usually go out earlier. If nothing arrives in your mailbox, you can pull the bill from the city’s online property tax portal before the paper copies ship.3City of Wauwatosa. Property Tax Collection Not receiving a bill does not excuse a late payment.
You can pay the full amount at once or split it into three interest-free installments due January 31, March 31, and May 31. No sign-up is required for the installment plan.3City of Wauwatosa. Property Tax Collection Each payment must be received by the deadline, not just postmarked.
Payment methods:
- Mail a check or money order with the payment coupon in the envelope included with your bill.4City of Wauwatosa. Current Year Property Tax Information
- Use the 24-hour secure drop box on the southwest end of City Hall, near the employee entrance. Include the payment coupon with your check.5City of Wauwatosa. Frequently Asked Questions
- Pay online by e-check or credit card through the city’s web payment system. Convenience fees apply: a small flat fee for e-checks and a percentage of the bill for credit cards. On a large tax bill the card fee alone can run into hundreds of dollars, so check the current amounts before you submit.
If your mortgage lender collects taxes through escrow, the lender pays directly and you usually don’t need to do anything. You can confirm the payment posted by checking the Milwaukee County property tax portal, which updates in real time.3City of Wauwatosa. Property Tax Collection If you pay off your mortgage or change your escrow arrangement, tell the city your current mailing address so the bill reaches you directly.
What Happens If You Pay Late
Miss a deadline and interest starts at 1% per month, or any fraction of a month, on the delinquent amount.6Wisconsin State Legislature. Wisconsin Code 74.47 – Interest and Penalty on Delinquent Amounts The county or an authorized city may add a further penalty of up to 0.5% per month. Combined, delinquent taxes can accumulate up to 1.5% per month. On a $7,000 bill that’s over $100 a month.
The stakes rise sharply after the summer. On September 1 each year, the county treasurer issues a tax certificate covering every parcel with unpaid taxes as of August 31.7Wisconsin State Legislature. Wisconsin Code 74.57 – Issuance of Tax Certificate That certificate starts a two-year redemption window. Pay everything owed, including accumulated interest and penalties, within those two years and you keep the property. Miss it and the county can take a tax deed, foreclose on the certificate, or foreclose on the underlying tax lien. Any of those paths ends with you losing the property.
Credits That Lower What You Owe
Two state-mandated credits already appear on most Wauwatosa bills.
The Lottery and Gaming Credit goes to homeowners who use the property as a primary residence on January 1 of the levy year. You can claim it on only one property, and it doesn’t apply to rentals, vacant land, or business property.8Wisconsin Department of Revenue. Wisconsin Lottery and Gaming Credit Program If you move or convert the home to a rental, tell the local treasurer so the credit is removed. Letting it ride anyway can mean recapture with interest.
The First Dollar Credit applies automatically to every taxable parcel with a building on it. It doesn’t require the property to be your primary residence, and there is no application.9Wisconsin Department of Revenue. First Dollar Credit Both credits show as deductions on the bill.
Additional Relief You Have to Claim Yourself
Three programs can cut your tax further, but you claim them through your state income tax return or an outside agency rather than through the city.
Homestead Credit
The Homestead Credit is for lower-income homeowners and renters. Household income must be below $24,680 for the 2025 tax year. You claim it by filing Schedule H or Schedule H-EZ with your Wisconsin income tax return, and the amount depends on how your household income relates to the property taxes or rent you paid that year.10Wisconsin Department of Revenue. Claiming Homestead Credit
Veterans and Surviving Spouses Property Tax Credit
Wisconsin veterans with a 100% service-connected disability rating can claim a credit equal to the full property tax on their primary home. Unremarried surviving spouses of eligible veterans may also qualify. You’ll need an eligibility verification from the Wisconsin Department of Veterans Affairs the first year you file, attached to your Wisconsin income tax return.11Wisconsin Department of Revenue. Veterans and Surviving Spouses Property Tax Credit – Qualifications
Senior Property Tax Deferral
The Wisconsin Housing and Economic Development Authority offers deferral loans that let qualifying elderly homeowners put off paying property taxes. Call WHEDA at (800) 755-7835 for eligibility and application details.12Wisconsin Department of Revenue. Property Tax Relief Credits
Appealing Your Assessment
If the assessed value is higher than what the property would actually sell for, you can challenge it. The process has two stages. Most homeowners handle the first one without hiring anyone.
Open Book Review
Each year the Assessor’s Office opens the preliminary assessment roll for public review during a designated Open Book period. You can meet with assessment staff, ask how your value was set, and point out anything that was missed: a comparable sale that suggests a lower value, a condition issue, or a data error like the wrong square footage.13City of Wauwatosa. Open Book Review Period Many disputes resolve here. Dates and hours are posted on the city’s website each year.
Board of Review
If Open Book doesn’t resolve things, the next step is a formal hearing before the Board of Review. This is a quasi-judicial proceeding and the filing rules are strict enough that one missed step can disqualify your objection.
Two filings are required. First, give the Board of Review clerk written or oral notice of your intent to file an objection at least 48 hours before the board’s first scheduled meeting. This is a heads-up, not the objection itself.14Wisconsin State Legislature. Wisconsin Code 70.47 – Board of Review Second, file a completed written objection form (PA-115A) with the clerk within the first two hours of the board’s first meeting.15Wisconsin Department of Revenue. Board of Review – Filing Objections and Forms If you missed the 48-hour notice, you can request a waiver by appearing in person during those first two hours and showing good cause.
The PA-115A form asks for your opinion of the property’s total value along with a written explanation of why you believe the assessment is wrong.16Wisconsin Department of Revenue. Objection to Real Property Assessment If someone else will represent you at the hearing, submit a separate written authorization form (PA-105).
Testimony at the hearing is under oath. Bring whatever supports your value: a recent appraisal, comparable sale printouts from your neighborhood, photographs of damage or deferred maintenance. The board weighs the evidence from both sides and issues a decision. A successful appeal adjusts your assessed value and recalculates the bill for that year.
A Note on Special Assessments
A special assessment is a separate charge, not part of your regular property tax, and shows up when the city improves the street, sidewalk, alley, or driveway approach next to your property. The project finishes in year one; the Treasurer’s Office sends the bill the following April. You have 30 days from the billing date to pay in full with no interest, file a Notice to Pay by the due date to extend payment interest-free to November 1, or do nothing and get placed into a five-year installment plan where principal and interest are added to your property tax bill.17City of Wauwatosa. Special Assessments Delinquent special assessments carry the same 1% monthly interest as regular property taxes.