The Acton Assessor’s office has been conducting the FY 2026 Quinquennial Revaluation as required by Mass. State Law. This update of values ensures that all property is assessed at full and fair market value as of January 1, 2025. The Assessor has received preliminary certification by the Mass. Dept. of Revenue. Public Disclosure period will be available to the public from 10/17/25 to 10/23/25

The revaluation requires the verification, analysis and use of at arms-length sales from calendar year 2024. Sales from the year 2023 were used to value property when the numbers of 2024 sales were insufficient for analysis. Market trends may indicate that different property types may change in value more or less than other property types. On average, class 101, single-family homes increased in value by 8.74%, class 102, condominiums increased by approximately 8.79%. Apartments class 111’s and 112’s increased by 3.32%. The commercial class increased by 5.3% and the industrial class by 5.46%. Individual parcel valuations may vary from the average class increase due to typical differences, data updates and corrections, new construction and the effect of market trends for specific characteristics. 

 The preliminary assessed values for FY 26 will be available for public review beginning Friday 10/17/25 through Thursday 10/23/25 at the Assessor’s Office, the Acton Senior Center, and the Acton Memorial Public Library and on the Assessors web page of the Town of Acton website.

 Contact the assessors’ office during the public disclosure period to ask questions, review, discuss and request changes in proposed values.

The Assessor’s Office is open from, 8:00 am to 4:00 pm Monday, Wednesday, and Thursday, 8:00 am to 6:00 pm Tuesday, and 8:00 am to 12:00 pm on Friday.

 More information about the Certification of Values here. To view the list of values and changes in value by class visit the Assessing Department page.