Welcome to the Town of Groton, Connecticut


The Assessment Division’s job is to ensure that the Town’s tax base is distributed fairly and accurately. This is done through the discovery, data collection, and valuation of all property on the Grand List. The division also administers the various exemption and abatement programs related to property taxation.

Links, Information, and Downloads:

An error has occurred during the 2022 PERSONAL PROPERTY DECLARATION printing process - the 2021 forms were inadvertently mailed instead of the 2022 forms.
The 2022 Personal Property Declarations will:
• Be mailed Wednesday, 10/5/2022
• Be yellow, for easy identification
• Include an Updated Tax Form message For more information please contact the Groton Assessor’s Office, 45 Fort Hill Road, Groton; 8:30 a.m. to 4:30 p.m., Monday through Friday, (860) 441-6660.

2023 Income & Expense

2022 Personal Property Declarations

2021 Personal Property Grand List – List of Assessments

2021 Town-wide Revaluation of Real Property

Antique Affidavit for Motor Vehicles over 20 Years

Board of Assessment Appeals

Charitable/Other Organizations Quadrennial Tax Exemption Applications

Military Members & Veteran Exemptions

Motor Vehicle Assessment Information Pamphlet & Handicap Vehicle Exemption Information

Motor Vehicle Information

Motor Vehicle – CT DMV Links

PA490 Farm, Forest & Maritime Heritage Programs

Personal Property Frequently Asked Questions

Property Tax & Rent Relief for the Elderly & Totally Disabled & Veterans Exemptions Information

Removal Statement for Mobile/Manufactured Home

Tax Exemption Application for Certain Energy Systems