Waukesha County property tax
Last verified October 24, 2026.
Your collector depends on your municipality.
Not tax or legal advice; confirm with your county and local collector.
Find your local tax office
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Use the municipality where your property is located. Confirm the collector and payment instructions on your bill.
Municipal tax pages
Use the directory to confirm the collecting office for your property.
Wisconsin payment rules
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Officially published
Local governments can provide a different installment schedule. Check your bill and local clerk before relying on the default dates.
Officially published
Municipal bill dates: Not yet announced here. Statewide rules describe the general schedule and its exceptions; they do not establish your property’s payment deadline. Check the official tax page above.
County collection role
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Assessment appeals
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State exemptions and relief
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State rule verification
Verified: October 24, 2026.
All Wisconsin rules and sources
Not tax or legal advice; confirm with your county and local collector.
Find counties by ZIP or city
A ZIP can cross county and municipal boundaries. The finder lists matching counties; use the official directory to confirm your property’s collector.
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Local collection sources
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Read the source quotations (11)
https://www.waukeshacounty.gov/treasurer/note-to-mortgage-companies-and-escrow-agents/
The Waukesha County Treasurer's Office has contracted with the following fifteen communities to collect the first installment of property taxes:
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https://www.waukeshacounty.gov/treasurer/note-to-mortgage-companies-and-escrow-agents/
Please use the Municipal Directory for local addresses.
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https://www.waukesha-wi.gov/housing/property-tax.php
Tax Collection hours at City Hall are Monday-Friday, 8:00 a.m. - 4:00 p.m.
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https://www.waukeshacounty.gov/treasurer/note-to-mortgage-companies-and-escrow-agents/
Payments for the remaining communities in Waukesha County should be made payable to the local treasurer and mailed directly to that community's treasurer.
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https://www.revenue.wi.gov/DOR%20Publications/pb060.pdf
If you pay by installment, your first payment is due by January 31; the second installment is due July 31
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https://www.revenue.wi.gov/DOR%20Publications/pb060.pdf
State law provides the following payment schedule unless your local governing unit enacted a different schedule. Be sure to check with your local clerk to ensure timely payment of your general property taxes.
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https://www.revenue.wi.gov/Pages/Municipalities/bor-calendar.aspx
if the property owner is not satisfied with the assessment after attending Open Book, the property owner can bring his/her appeal to the BOR.
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https://www.revenue.wi.gov/DORForms/pa-105f.pdf
If an agent is representing the property owner or municipality, the property owner or municipality must provide prior written authorization for the agent to represent the company or municipality when contacting the reviewing authority.
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https://www.revenue.wi.gov/pages/faqs/ise-home.aspx
You are a legal resident of Wisconsin for all of 2025, from January 1 through December 31. You are 18 years of age or older on December 31, 2025. You have less than $24,680 in household income for 2025.
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How we verified this page
Official sources, verification dates and corrections
Property tax in Waukesha County: county, state and US
Compare Census estimates and read the sampling notes
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Census ACS 2020–2024 estimates for owner-occupied homes. The median annual tax paid is a historical survey estimate, not a quote for this year’s bill.
| Area | Median annual tax paid | Median home value | Effective rate estimate |
|---|---|---|---|
| Waukesha County | $4,554 | $398,200 | 1.14% |
| Wisconsin | $3,792 | $266,500 | 1.42% |
| United States | $3,119 | $332,700 | 0.94% |
Waukesha County’s effective-rate point estimate is 0.28 percentage points below Wisconsin’s and 0.21 percentage points above the US estimate.
Effective rate = median annual real estate taxes paid (B25103) ÷ median owner-occupied home value (B25077). State and US figures use their own Census medians, not averages of counties. These ratios are not rates set by law or medians of individual tax rates. Differences are not tests of statistical significance. Bounded or missing estimates stay unavailable.
Census sources, quotations and sampling uncertainty
Waukesha County
Annual taxes: $4,554 (90% margin of error: ±$38). Census table B25103_001E.
0500000US55133|4554|38|4595|51|4481|63
Home value: $398,200 (90% margin of error: ±$3,967). Census table B25077_001E.
0500000US55133|398200|3967
Estimated effective rate: 1.14%. Census source.
0500000US55133|4554|38|4595|51|4481|63
Wisconsin
Annual taxes: $3,792 (90% margin of error: ±$12). Census table B25103_001E.
0400000US55|3792|12|3908|14|3605|19
Home value: $266,500 (90% margin of error: ±$1,051). Census table B25077_001E.
0400000US55|266500|1051
Estimated effective rate: 1.42%. Census source.
0400000US55|3792|12|3908|14|3605|19
United States
Annual taxes: $3,119 (90% margin of error: ±$4). Census table B25103_001E.
0100000US|3119|4|3489|4|2576|4
Home value: $332,700 (90% margin of error: ±$236). Census table B25077_001E.
0100000US|332700|236
Estimated effective rate: 0.94%. Census source.
0100000US|3119|4|3489|4|2576|4
Guides and related dates
Waukesha County property tax calculator
Estimate your bill, check exemptions and compare counties
Tools: Waukesha County, WI
Property tax calculator
Estimated annual property tax $4,554
$398,200 home value × 1.14% Census effective rate ≈ $4,554 per year. Uses the unrounded ratio; your actual bill may differ.
Estimate only. Not tax, legal or financial advice; confirm with your county.
Starts at the Census median for Waukesha County, WI.
Math and official Census sources
$4,554 median annual tax ÷ $398,200 median home value = 1.14%. Census ACS 2020–2024; a historical survey ratio, not a parcel tax rate.
0500000US55133|398200|3967
Census source. Last verified 2026-10-24.
0500000US55133|4554|38|4595|51|4481|63
Census source. Last verified 2026-10-24.
Full Waukesha County, WI calculator: exemptions, rates, dates and reminders
Prorated property tax calculator
Nearby counties and other due dates
Nearby counties
Related counties in the same Census area: Milwaukee-Waukesha, WI (Metropolitan Statistical Area).
Why these counties are listed
Census delineation, verified October 24, 2026.
33340 | Milwaukee-Waukesha, WI | Metropolitan Statistical Area | Waukesha County | Wisconsin | 55 | 133
Other counties in Wisconsin due soon
Published payment dates in the next 60 days.
No other county payment dates are verified here for this period. Check the county’s official site.
Updated , from cited verification dates. Individual sources may have earlier checks.