Assessing

New! FY26 Tax Bills FAQ

Get answers to Frequently Asked Questions about FY26 (July 1, 2025-June 30, 2026) property taxes.

Assessor's Online Database

Look up an address and get property information via the Assessor's Online Database.

Responsibilities

The Assessor's Office is responsible for the valuation of all property in South Portland including real estate. The total taxable valuation of real estate for 2025/26  is $6,356,513,650. The total taxable valuation of personal property is $387,362,700. The total valuation of Real and Personal Property is $6,743,876,350. The total valuation base of South Portland after State Reimbursements is $7,119,911,585.

Annually, the Assessor's Office reviews valuations and makes adjustments to the valuations that include any additions and deletions. The department is also responsible for maintaining accurate records of property ownership.

In addition to these and other duties, the Assessor's Office is responsible for processing exemptions for homestead, veterans, and widows of veterans.

The Assessor's Office is a clearing house of information such as building and land records, monthly sales transactions, and assessment valuation information used by other City departments, the public, and their representatives (appraisers, brokers, attorneys, surveyors, title companies, etc.). Reports are often generated from the commitment file for use by various city departments, as well as the office being the source of addresses for public hearing notification. Computer reports containing various assessment and ownership information can be purchased for a reasonable fee.

General Tax Information

• Assessment Date: April 1st, 2025
• Commitment Date: September 11th, 2025
• Fiscal Tax Year: July 1st to June 30th
• Certified Ratio: 100%
• 2025 to 2026 Tax Rate: 13.65

Payment Dates (quarterly bills have been discontinued)

• November 16th, 2025
• May 17th, 2026