07/21/2026
If you chose an installment plan to pay your taxes this year, please be reminded that your final installment is due on July 31st. You may pay property taxes four ways:
☑️In-person at the Finance Department in City Hall (106 Jones St.) M-F, 8 to 4:30
☑️Night deposit box in front of City Hall to the left of the main entrance
☑️Mail to Watertown Finance Department, PO Box 477, Watertown, WI 53094
☑️Online (credit card) at watertownwi.gov (convenience fee assessed by PSN, the payment processor) See less