Assessor's Office Duties and Responsibilities

The Role of the Assessor's office is to establish a value for all real & personal property for tax purposes and to maintain ownership records as required by Maine Title 36. Among other duties, this office is responsible for updating and maintaining tax maps, administering tax exemptions, and answering assessing questions.

The Town of Casco has partnered with the Cumberland County Regional Assessing Program. This program is designed to ensure quality, professional assessing services to the town at a reduced cost. Benjamin Thompson has been appointed director of the Cumberland County Regional Assessing Program and has taken the oath of office as the official Assessor for Casco.

Forms & Reports:

Casco Name Change

Change of Address Form (PDF)

Casco  Sales Report (PDF)

Exemptions & Current Use

2021 - 2022 Commitments:

Personal Property Commitment 2021-2022

Real Estate Commitment 2021-2022

Casco Office Hours: 

Wednesdays from 9:00-12:00

July & August 8 - 3:30

Portland Office Hours:


8:00 AM - 4:30 PM




Email the assessor

Mail to:

Cumberland County Regional Assessing
25 Pearl Street
Portland, Maine 04101

Annual Assessment Data

Tax Rate 15.66
Due Dates October 6, 2021
March 2, 2022
Fiscal Year July 1, 2021 - June 30, 2022
Assessment Date April 1, 2021
Commitment Date August 6, 2021
Abatement App Deadline February 7, 2022
Certified Ratio 89%
Last Revaluation 2013