Cumberland County Property Tax Appeal, Maine
Cumberland County is Maine's most populous county with a population of approximately 303,000 residents, serving as the economic and industrial center of the state. The county seat is Portland, Maine's largest city, and includes the major cities of South Portland and Westbrook, along with 25 towns stretching from Casco Bay to the Lakes Region. Property tax appeals are particularly important here given the county's high tax burden, Cumberland County has the median property tax bill of $4,577 annually, significantly above both the state average and more than double the national median of $2,400. The county's median home value of $411,400 is the highest in Maine and 46% above the national median, while the effective tax rate of 1.11% sits near the national median, creating substantial annual bills that make successful appeals especially valuable for homeowners.
Notable cities: Portland, South Portland, Westbrook, Brunswick, Scarborough
Median Home
$411,400
Tax Rate
1.11%
Annual Tax
$4,577
Population
303,096
On the typical Cumberland County home, valued near $411,400 at the county’s effective tax rate of 1.11%, an over-assessment of even 10% means you are overpaying year after year until you appeal it. Here is how to find out if yours qualifies.
2026 Appeal Deadline: 185 days from the tax commitment date
In Maine, you must file an abatement application with your municipal assessor within 185 days of the commitment date (usually when tax bills are mailed, typically summer/early fall). The assessor has 60 days to respond; if no response is received, the request is deemed denied. You can then appeal to the Board of Assessment Review within 60 days of the assessor's decision or deemed denial.
See if your Cumberland County home is over-assessed
Free analysis in 30 seconds. If the numbers support a appeal, your complete evidence packet is $49.

How Cumberland County Assesses Property
Assessed by: Cumberland County Regional Assessing (for contracted municipalities) or individual municipal assessors
Assessment cycle: annual
Notices typically mailed: Around commitment date (typically summer/early fall)
Maine uses a 100% assessment ratio, meaning properties are assessed at their full market value, also called 'just value' under Maine law. For example, if your home's market value is $411,400 (the county median), at Maine's 100% assessment ratio your assessed value would be $411,400. At Cumberland County's effective rate of 1.11%, this would result in approximately $4,567 in annual property taxes. After applying the $25,000 homestead exemption, your taxable value would be $386,400, reducing your annual tax bill to approximately $4,289.
The Appeal Process
Appeals are heard by the Board of Assessment Review. The Board of Assessment Review will hold a public hearing where you can present evidence including comparable sales, photographs, appraisals, and repair estimates. Both you and the assessor will have the opportunity to provide written and oral testimony, and the Board will make a determination based on whether your property is assessed at fair market value.
Step 1: File a written abatement application with your municipal assessor within 185 days of the tax commitment date (when bills are mailed), stating the amount you believe your property is worth and reasons for the requested reduction.
Step 2: Provide supporting documentation including recent comparable sales (within the past year), independent appraisals, photographs of property conditions, repair estimates, or evidence of assessment errors.
Step 3: Wait for the assessor's decision (assessor has 60 days to respond; if no response is received within 60 days, the request is deemed denied).
Step 4: If denied or you disagree with the reduction offered, appeal to your local Board of Assessment Review within 60 days of receiving the assessor's decision by filing a written appeal application.
Step 5: Attend the Board of Assessment Review hearing where you and the assessor will present written and/or oral testimony; the Board will issue a decision typically within 60 days.
Step 6: If the Board denies your appeal, you may appeal to Superior Court (for residential properties) or the State Board of Property Tax Review (for non-residential properties valued over $1 million) within 60 days of the Board's decision.
Step 7: As a final option, if denied at Superior Court, you may appeal to the Maine Supreme Judicial Court.
Required form: Written abatement application (form varies by municipality, available from local assessor or Cumberland County Regional Assessing)
Filing Methods
Evidence to Bring
Cumberland County Assessor Contact
Cumberland County Regional Assessing
Phone: (207) 699-2475
Address: 25 Pearl Street, Portland, ME 04101
Website: https://www.cumberlandcountyme.gov/departments/regional_assessing/
Hours: Monday-Friday, 8:00 AM to 4:30 PM
Tax Exemptions in Cumberland County
Homestead Exemption
$25,000 reduction in assessed valueReduces the assessed value of your primary residence for property tax purposes
Veteran Exemption
$6,000 reduction in assessed value (standard); $50,000 for paraplegic veterans with VA specially adapted housingProvides property tax relief for qualifying veterans and their surviving spouses
Blind Exemption
Varies by municipality (approximately $3,000-$4,000 reduction in assessed value)Tax reduction for property owners who are legally blind
Property Tax Fairness Credit
Up to $2,000 for seniors 65+; up to $1,500 for othersRefundable Maine state income tax credit for property tax burden exceeding income thresholds
Renewable Energy Investment Exemption
100% exemption on renewable energy equipment valueExempts non-commercial renewable energy equipment from property taxation
Cumberland County Appeal Statistics
Avg Reduction
$1,574
Cumberland County Appeal Packet · $49
Comparable sales evidence, county-specific filing guide, and professional cover letter. Enter your address to get started.
Frequently Asked Questions
What is the deadline to appeal my property taxes in Cumberland County?
How much can I save by appealing my property taxes in Cumberland County?
What is the homestead exemption worth in Cumberland County?
What evidence do I need for a successful property tax appeal in Cumberland County?
What happens at a Board of Assessment Review hearing in Cumberland County?
Can I appeal my property taxes if I recently bought my home in Cumberland County?
Do I have to pay my property taxes while my appeal is pending in Cumberland County?
What is the difference between appealing to the Board of Assessment Review versus going to court in Cumberland County?
Official Resources
Cumberland County Regional Assessing Official Website →
Official county assessing website with forms, exemption applications, abatement deadlines, and property search tools for municipalities served by Cumberland County Regional Assessing.
Maine Revenue Services Property Tax Division →
State-level property tax information including exemption programs, Property Tax Fairness Credit, state tax forms, and guidance on Maine property tax law and procedures.
Maine State Board of Property Tax Review →
Information on appealing to the state board for commercial properties over $1 million, filing procedures, and state-level appeal guidance.
Maine Property Tax Bulletin No. 10 - Abatement and Appeals Procedures →
Official state guidance on the complete property tax abatement and appeal process, deadlines, procedures, and requirements under Maine law.
For state-wide appeal information including Maine's assessment ratio and deadlines, see our Maine Property Tax Appeal Guide →
Considering professional help with your appeal? Compare pricing, coverage, and pros/cons in our Best Property Tax Appeal Services (2026) or browse side-by-side service comparisons →
More Maine Counties
Sources: https://www.cumberlandcountyme.gov/departments/regional_assessing/ | https://www.maine.gov/revenue/taxes/property-tax | https://www.ownwell.com/trends/maine/cumberland-county | https://taxbycounty.com/maine/cumberland-county | https://www.maine.gov/dafs/boardproptax/
Last verified: 2026-07-24