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Assessing

Our mission is to accurately assess property and provide prompt and courteous help to the public. We determine the value of property in Boston for the purpose of taxation.

You can search FY 2019 Real Estate Assessments and Taxes through our online Assessing tool:

Go to Assessing Online

Assessing
Contact
1 City Hall Square
Room 301
Boston, MA 02201-2011
United States
Monday through Friday, 9 a.m. - 5 p.m.
Tax Data Administration (TDA): 617-635-3783
Personal Property: 617-635-1165
Main Number: 617-635-4321

2019 updates

FILING FOR Exemptions OR TAX Deferrals

The City has many tax relief programs for homeowners who occupy their property as their principal residence. These include residential exemptions, personal exemptions, and a tax deferral program for seniors.

The online applications for exemptions and tax deferrals are available through Assessing Online starting January 1, 2019. Follow the instructions on Assessing Online to find applications for your property.

The Fiscal Year 2019 filing deadline for exemptions and tax deferrals is April 1, 2019.

7-year property Maintenance Project

In the coming weeks, assessors will be performing inspections at properties across the City that have not been inspected or sold in the last seven years.

These inspections may take place between 8 a.m. and 5 p.m., Monday through Friday. Representatives will carry a City of Boston photo ID and drive a City vehicle. Have questions or concerns? Please contact us at 617-635-4321.

Community Preservation Act (CPA) Surcharge

In November 2016, Boston voters approved the Community Preservation Act (CPA) by voting “yes” on Ballot Question 5. By adopting the act, the City has created a Community Preservation Fund.

Community Preservation Act surcharge

The City finances the fund in part by a 1% property tax-based surcharge on residential and business property tax bills. You may see the surcharge on your property tax bills beginning with the Fiscal Year 2018 first-quarter tax bill in July 2017.

cpa surcharge information

Learn about the program

Taxpayer Referral and Assistance Center

"TRAC" offers a "one-stop" service at City Hall for Boston taxpayers on tax-related matters.

Tax agreements

The City has tax incentive programs to advance its economic development and housing goals. These programs include Chapter 121A, Chapter 121B, Tax Increment Financing, and Special Tax Assessment.

Want to learn more?

We created a page to give you more information about these programs. You can also download active tax agreements with the City.

Tax agreement information

Payment in Lieu of Tax (PILOT) Program

Many of Boston’s major schools, hospitals, and cultural institutions make a voluntary contribution to the City each year in the form of cash and community programs that uniquely benefit the City’s residents.