In Brookfield, the Tax Bill Depends on Which Line the House Sits Inside
October 22, 2026
October 22, 2026
A Brookfield home that sells for about $600,000 can carry a property tax bill of roughly $5,300 a year. Another home at the same price can carry one closer to $6,600. The listing price, the square footage and the photos look the same in both cases. The difference comes from which municipality the parcel sits in and which school district collects from it.
"Brookfield" covers two separate governments, the City of Brookfield and the Town of Brookfield. The City is also split among three school district tax zones. That gives five tax rates for addresses that share a name, and the posted rates make the gaps between them look different from what they really are.
These are the 2025 rates, which apply to the December 2025 bills paid in 2026. They come from Waukesha County's 2025 tax rate table, dated December 11, 2025.
Municipality and school district | Net rate per $1,000 assessed | Assessment ratio | Net rate per $1,000 of full value |
|---|---|---|---|
City of Brookfield, Elmbrook | $11.96 | 88.81% | $10.62 |
City of Brookfield, Hamilton/Lisbon | $12.43 | 88.81% | $11.04 |
City of Brookfield, Waukesha | $10.52 | 88.81% | $9.35 |
Town of Brookfield, Elmbrook | $10.59 | 95.32% | $10.09 |
Town of Brookfield, Waukesha | $9.26 | 95.32% | $8.82 |
The county notes that these rates are rounded. They also leave out lake districts, fire districts, special charges and special assessments, so the bill for any single parcel can come in somewhat different.
Most people compare the first column, the net rate per $1,000 of assessed value. On that basis, a City home in the Elmbrook zone at $11.96 looks $1.37 more expensive per $1,000 than a Town home in the same district at $10.59.
That comparison leaves out how each government values homes. The City's assessments sit at 88.81% of market value, while the Town's sit at 95.32%. A City parcel is assessed further below its market price, so its higher rate is applied to a smaller number. Once both rates are converted to full market value, the City Elmbrook rate is $10.62 and the Town Elmbrook rate is $10.09. The real gap is $0.53 per $1,000, well under half of what the posted rates suggest.
Assessments drift below market because of timing. The City completed a citywide revaluation in 2023, and the one before that was in 2019, according to the City's 2023 revaluation notice. The 2026 Board of Review notice says plainly, "This is not a revaluation year for the City of Brookfield." As sale prices move and assessments stay put, the assessment ratio shifts, and the rate per assessed dollar shifts with it. The full-value column is the one that stays comparable from one zone to the next.
To put the full-value rates into dollars, start with a recent price. The Greater Milwaukee Association of REALTORS® reports a price figure of $599,009 for Brookfield sales from January 1 through September 30, 2026. That figure includes single-family homes, condominiums and two-family and multifamily properties.
Here is what each zone's 2025 full-value rate works out to on that price, before any special charges:
The highest and lowest zones are about $1,330 apart each year. Within the City alone, the Hamilton/Lisbon and Waukesha portions are about $1,010 apart. These are estimates built from rounded county rates. Each parcel's real bill uses its own assessed value.
The table also shows where the gap comes from. The local municipal rate, before the school, technical college and county portions are added, is $4.70 per $1,000 assessed in the City and $3.22 in the Town. The state credit is $1.50 in the City and $1.00 in the Town. The school portion is $7.05 for City Elmbrook, $7.52 for City Hamilton/Lisbon and $5.62 for City Waukesha.
Most of what changes a City of Brookfield bill from year to year comes from layers other than the City's own. The City's adopted levy ordinance set the levy funding the 2026 budget at $43.575 million. The City's budget hearing memo puts that levy 1.12% above the prior year's $43.091 million and projects a City rate of $4.7035 per $1,000 of assessed value. The memo also estimated that the City portion of the bill on a $460,000 average-value home would rise about $2 compared with December 2024. It put the increase in the total bill at about $69, mainly from the Elmbrook Schools levy.
That flat City line comes after a vote. In April 2025, the City asked voters to approve a permanent $6 million annual levy increase. The City estimated the cost at $87 per $100,000 of assessed value, or about $300 a year on an average $460,000 home. The Freeman reported that it failed, 11,008 votes to 9,612, or 53.4% to 46.6%. For a buyer, that leaves the school portion as the part of a Brookfield tax bill most likely to change. The next decision on it comes on Tuesday.
On Tuesday, November 3, 2026, the School District of Elmbrook will ask voters to approve up to $100 million in general obligation bonds. The money would pay for renovations and upgrades at Pilgrim Park Middle School, Tonawanda Elementary School, Swanson Elementary School and Wisconsin Hills Middle School, plus additions at Pilgrim Park and Tonawanda. The question affects addresses in the Elmbrook zone, which covers parts of both the City and the Town.
The district's referendum FAQ puts the tax impact at $0.11 per $1,000 of property value, or about $11 a year per $100,000. That equals about $55 on a $500,000 property and $66 on a $600,000 one. That figure compares against today's debt rate. The FAQ also describes what happens with no new referendum. The $62.1 million borrowed in 2008 for Brookfield Central and Brookfield East currently accounts for about $0.56 per $1,000 and is scheduled to be paid off in 2028. "Without a new referendum, property owners would receive that projected reduction," the district states. With the new bonds, the district estimates a debt rate of about $0.67 per $1,000.
So a buyer pricing out an Elmbrook-zone home around 2028 has two possible outcomes, and they are about $0.67 per $1,000 apart. On the $599,009 Brookfield price figure, that comes to about $400 a year. If the measure passes, the bill is close to today's level plus $0.11 per $1,000. If it fails, the 2008 debt portion drops away. For context, the district lists its total 2025–26 rate as $6.26 per $1,000 of equalized value, which it calls the lowest in district history.
Homes in the Waukesha and Hamilton/Lisbon portions of Brookfield are outside this vote. Any change on those bills will come from their own districts' levies.
The Brookfield market in 2026 leaves more room for this kind of homework than it did a year ago. GMAR counted 388 Brookfield sales from January through September 2026, down 9% from 427 in the same months of 2025. Average days on market rose from 17 to 24, while the price figure moved up only 1%, from $594,834 to $599,009.
Across Waukesha County, the picture is steadier. GMAR's September 2026 release counted 459 county sales in September, up from 439, with new listings up 3.8%. The county's January-to-September average sale price was $577,348, down 0.1% from 2025. Borrowing costs are higher too. The Wisconsin REALTORS® Association's August 2026 report cited an average 30-year mortgage rate of 6.67%, up from 6.05% in February, and said statewide affordability had reached its lowest level since WRA began tracking it in 2009.
When affordability is that tight, a $1,000 difference in yearly taxes takes room out of a monthly budget that is already stretched. Homes are also staying on the market longer, so buyers have more time to confirm a home's municipality, school tax district and assessed value before making an offer.
Is a Town of Brookfield address always cheaper to own than a City address? Not always, based on the 2025 rates. A City home in the Waukesha district has a full-value rate of $9.35, which is lower than the $10.09 rate for a Town home in the Elmbrook district.
Will a City of Brookfield revaluation change these comparisons? A revaluation would reset the City's assessment ratio, which would change the rate per assessed dollar. The City has said 2026 is not a revaluation year, and its most recent citywide revaluation was in 2023.
Do these rates cover everything on the bill? No. The county table leaves out lake districts, fire districts, special charges and special assessments, so an individual parcel's bill can be different.
This post is general information, not legal, tax or financial advice. Please confirm the tax figures for any specific property with the county, the municipality or a tax professional.
When you compare Brookfield homes, the parcel's tax zone belongs in the comparison alongside the price and the floor plan. Walters Realty Group can pull the tax history and assessment details for the specific addresses you are considering and set out the yearly carrying cost of each before you write an offer. Schedule a consultation and bring your shortlist.
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