This page was updated March 2026.
Wellesley property tax bills mailed
March 2026–Payments for Wellesley real estate and property tax bills are due on or before 4:00 p.m. on Friday, May 1, 2026. You can pay online here.
In-person payments may be delivered to the Treasurer’s Office at Wellesley Town Hall, 525 Washington Street.
Payments may also be delivered to the secure ballot and payment drop box which is located in front of Town Hall, directly across from the Washington Street entrance.
Questions? Contact the Treasurer’s Office at 781-431-1019 ext. 2266.
Tax Classification Hearing on December 2
Nov. 25, 2025–The Wellesley Select Board will hold a public hearing on Tuesday, December 2 at 6:30 p.m. at Town Hall to determine the local property tax rate for Fiscal Year 2026.
Members of the Select Board and Board of Assessors will participate in the joint meeting, which will be held in-person in the Juliani Room .
Information and data about the fiscal effect of the tax rate will be available for the public to view on December 1 in either the Select Board Office or the Assessor’s Office.
Comments may be submitted in writing prior to the public hearing by emailing the Assessor’s Office or the Select Board Office. Citizens may also share comments at the meeting.
AG approves ADU Zoning Bylaw Amendment
The Massachusetts Attorney General’s office has approved amendments to Wellesley’s Zoning Bylaw for Accessory Dwelling Units (ADUs) that were passed by 2025 Annual Wellesley Town Meeting.
This decision was announced on July 29, 2025, but the zoning bylaw amendments are effective as of April 15, 2025, which is the date Town Meeting approved Article 40.1.
Concerns about the validity of Zoning Bylaw amendments may be submitted within 90 days of this posting, or by October 27, 2025.
Earlier this month, the AG’s office issued approvals for General Town Bylaws and Zoning Bylaws, other than the ADU decision.
