2025 REAL ESTATE TAX BILL INFORMATION IS ON THE COUNTY WEBSITE AND ON LINE PAYMENTS ARE AVAILABLE. YOUR PAPER TAX BILLS ARE BEING MAILED.

You can pay your property tax bill online using a Town of Merton payment site by clicking HERE. Fees apply (2.15% for credit/debit cards with a $3.99 minimum or $2.00 for electronic checks). The same fees apply whether paying online or at the Town Hall.

Property tax bills can also be paid online at the Waukesha County website by clicking HERE. Fees apply (2.39% for credit cards, $1.50 for electronic checks up to $10,000 and $10 for electronic checks over $10,000 or a flat rate of $3.95 for a debit card transaction).       

2025-2026 Tax Collection

Mailed payments will be receipted December 31, 2025 if postmarked by that date.

Payments deposited in the drop box (outside Town Hall main entrance) on or before 12/31/2025 will be receipted as paid in 2025.

If you would like a receipt for online payment from your mortgage company or mailed in payments send a self-addressed stamped envelope.

Receipts are given for in-person payments .

Receipts will be sent for payments sent via mail or drop box, if an email is provided.

After January 31, 2026, checks should be made payable and sent to: Waukesha County Treasurer, 151 W. Moreland Blvd. Room 148, Waukesha, WI 53188.

Please issue a separate check for dog license and/or a compost pass.

Name change needed on your tax bill? Contact the Waukesha County Register of Deeds at 262-548-7583.

Address changed, please mail coupon back with box marked and new address written on the coupon.