Taxes
The Waukesha County Treasurer collects all Town of Brookfield tax payments. Please visit the Waukesha County Treasurer webpage for more tax payment information.
Waukesha County Treasurer’s office hours are Monday through Friday, 8 am – 4:30 pm. Offices are closed for major holidays.
Three ways to pay your Property Taxes:
- Mail*: Waukesha County Treasurer, 515 W Moreland Blvd., Rm AC148, Waukesha, WI 53188
- Dropbox: The blue & white drive-up drop box is located on east side of Waukesha County Courthouse facing Pewaukee Rd, on the island near the blue postal box
- Online: https://tax.waukeshacounty.gov
Online Payment Methods
- Direct Debit from checking account – $1.50 fee (If payment is greater than $10,000 – $10.00 fee)
- Debit Card – $3.95 fee
- Credit Card – 2.39% of payment amount, $1.50 minimum fee
Dropbox Location
A blue & white drive-up drop box is located on the east side of the Waukesha County Administration Building, across from Door 35, facing Pewaukee Road. Any tax payments deposited in the drop box by 7:30 a.m. will be dated for the previous day.
*Advisory for Property Taxpayers: USPS Policy Change Regarding Postmarks
If you pay your property taxes by mail, please be aware of a recent U.S. Postal Service policy change that may affect when envelopes are postmarked.
In August 2025, the Postal Service instituted a nationwide change as to when a postmark is affixed to incoming mail. Instead of postmarks being affixed when the item is first touched by the Postal Service, postmarks are now stamped at regional sorting centers. This means that your postmark could be several days after you put it in your mailbox.