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 2018 Sales Report (PDF)

Exemptions & Current Use

2020 - 2021 Commitments:

Personal Property Commitment 2020 

Real Estate Commitment 2020

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 15.60
Due Dates October 7, 2020
March 3, 2021
Fiscal Year July 1, 2020 - June 30, 2021
Assessment Date April 1, 2020
Commitment Date August 7, 2020
Abatement App Deadline February 8, 2021
Certified Ratio 92%
Last Revaluation 2013