Assessor’s Office

The assessors job is to ensure that the city’s tax base is distributed fairly and accurately. This is done through the discovery, data collection and valuation of all property — real estate, business personal property and motor vehicle — on the grand list. Property is assessed at 70% of fair market value. The assessor’s office also administers the various exemption and tax relief programs related to property taxation.

Important Updates for Tax Relief Programs

Staff Members are in the office from 9 a.m. to 5 p.m. Monday through Friday. All documents can be emailed, inserted into the drop box at the Main Street entrance of City Hall, or dropped off at the outside window on the Campbell Avenue side of the building. The window closes at 4:30 p.m. To request an in-office appointment, the request must be emailed 24 hours in advance. Appointments are available on a limited basis from 10 a.m. to 3 p.m. Tuesday through Friday. The request must state the date, time and reason for the visit.


2019 Property Records are available online at West Haven GIS.

2020 Personal Property Declarations will be mailed at the end of September with an Online Access Code to the online portal. We encourage all businesses to use the online filing. The 2019 personal property assessment information is found in the online portal. All online Information is confidential. The deadline for filing is Monday, Nov. 2, 2020.