Cumberland County Property Tax Appeal, Maine

Travis BunnTravis Bunn·Updated July 24, 2026

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.

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Maine house on the rocky coast. Cumberland County appeal guide.

How Cumberland County Assesses Property

100%of market value

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.

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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.

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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.

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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).

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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.

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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.

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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.

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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

mail:Cumberland County Regional Assessing, 25 Pearl Street, Portland, ME 04101
email:assessor@cumberlandcounty.org
in-person:Submit to your local municipal assessor's office or Cumberland County Regional Assessing office

Evidence to Bring

Comparable sales (recent sales of similar properties in your area, preferably within the past year)Independent professional appraisalPhotographs documenting property condition, defects, or needed repairsContractor estimates for repairs or correctionsEvidence of assessment errors or incorrect property characteristics

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 value

Reduces the assessed value of your primary residence for property tax purposes

Eligibility: Must be a permanent Maine resident, own the home as your permanent residence, and have owned a home in Maine for 12 months prior to April 1 of the application yearDeadline: April 1 (one-time application, remains in effect as long as you occupy the property)

Veteran Exemption

$6,000 reduction in assessed value (standard); $50,000 for paraplegic veterans with VA specially adapted housing

Provides property tax relief for qualifying veterans and their surviving spouses

Eligibility: Veterans who served during a recognized war period and are age 62 or older, OR became 100% disabled while serving, OR non-remarried surviving spouses of qualifying veteransDeadline: April 1

Blind Exemption

Varies by municipality (approximately $3,000-$4,000 reduction in assessed value)

Tax reduction for property owners who are legally blind

Eligibility: Property owners determined to be legally blindDeadline: April 1

Property Tax Fairness Credit

Up to $2,000 for seniors 65+; up to $1,500 for others

Refundable Maine state income tax credit for property tax burden exceeding income thresholds

Eligibility: Homeowners whose property taxes exceed 4-6% of Maine adjusted gross incomeDeadline: Claimed on annual Maine income tax return

Renewable Energy Investment Exemption

100% exemption on renewable energy equipment value

Exempts non-commercial renewable energy equipment from property taxation

Eligibility: Solar panels and other renewable energy equipment used on-site for primary residence, installed after April 1, 2020Deadline: April 1 of the first year exemption is requested

Cumberland County Appeal Statistics

Avg Reduction

$1,574

Cumberland County Appeal Packet · $49

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Frequently Asked Questions

What is the deadline to appeal my property taxes in Cumberland County?
In Cumberland County, you must file a written abatement application with your municipal assessor within 185 days from the tax commitment date, which is typically when your tax bills are first mailed (usually in summer or early fall). This is one of the longest appeal windows in the country, giving you ample time to gather evidence. If the assessor denies your request or doesn't respond within 60 days, you can then appeal to the Board of Assessment Review within 60 days of that decision. Missing these deadlines means you must wait until the next tax year to appeal, so mark your calendar carefully.
How much can I save by appealing my property taxes in Cumberland County?
Successful property tax appeals in Cumberland County save homeowners an average of $1,574 per year, according to appeal service data. The actual savings depends on how much your assessment is reduced and your municipality's tax rate. For example, if you successfully reduce your assessed value by $50,000 on a property in a town with a 20 mill rate, you would save $1,000 annually. Given Cumberland County's median tax bill of $4,577 (significantly above the national median of $2,400), even a modest percentage reduction can result in substantial savings over time. Studies show approximately 25% of homes in America are over-assessed, making appeals worthwhile for many homeowners.
What is the homestead exemption worth in Cumberland County?
Maine's homestead exemption reduces your property's assessed value by $25,000 for property tax purposes. In Cumberland County, with an effective tax rate of 1.11%, this exemption saves you approximately $278 per year on your tax bill. Some individual municipalities may have different effective rates, for example, in the Town of Cumberland with its 2026 revaluation, the exemption provides a $14,250 reduction in property value at the current assessment ratio, saving about $360 annually at their mill rate. You must apply once by April 1st after owning and occupying your Maine home for at least 12 months, and the exemption remains in effect as long as you continue to occupy the property as your primary residence.
What evidence do I need for a successful property tax appeal in Cumberland County?
The strongest evidence for a Cumberland County property tax appeal includes recent comparable sales of similar properties in your area, preferably from within the past year, showing that homes like yours sold for less than your assessed value. You should also gather an independent professional appraisal, photographs documenting any property condition issues or needed repairs, and contractor estimates for any significant repairs or defects. Evidence of factual errors in your property record (incorrect square footage, wrong number of bathrooms, etc.) is also very effective. Maine law considers a property's valuation reasonable if it's within 10% of its probable selling price, so your evidence needs to demonstrate your assessment exceeds this threshold. The more comprehensive and recent your documentation, the stronger your appeal.
What happens at a Board of Assessment Review hearing in Cumberland County?
At a Board of Assessment Review hearing in Cumberland County, you will present your case to an appointed board of local citizens who will review your appeal of the assessor's decision. Both you and the assessor will have the opportunity to provide written and oral testimony, and you can present your evidence including comparable sales, appraisals, photographs, and repair estimates. The hearing is relatively informal, and you can represent yourself or hire an attorney. The Board will evaluate whether your property is assessed fairly compared to similar properties and at true market value. After the hearing, the Board will issue a written decision, typically within 60 days, either upholding the assessment, granting a reduction, or in some cases even increasing the assessment if evidence warrants it.
Can I appeal my property taxes if I recently bought my home in Cumberland County?
Yes, you can appeal your property taxes in Cumberland County even if you recently purchased your home, and a recent purchase can actually strengthen your case. If you bought your home for significantly less than the assessed value, your purchase price serves as strong evidence of market value, especially if the sale was an arm's-length transaction between unrelated parties. However, keep in mind that Maine's statutory assessment date is April 1, so the previous owner's name may appear on the tax bill for the entire fiscal year if you purchased after that date. You still have the right to appeal within 185 days of the commitment date. Be prepared to provide your closing documents, and note that assessors may question sales involving family members, foreclosures, or other non-market conditions.
Do I have to pay my property taxes while my appeal is pending in Cumberland County?
Yes, you must continue to pay your property taxes on time in Cumberland County even while your appeal is pending. Filing an abatement application or appeal does not suspend, stop, or exclude you from paying your taxes by the deadline dates, and failure to pay on time will result in interest charges and potential penalties. Maine law requires that property taxes remain current when filing an appeal. If your appeal is successful and you receive an abatement, your local tax collector will adjust your tax amount and issue a refund or credit for any overpayment. The refund will include any interest you paid on the excess amount. This requirement protects municipal budgets while your appeal is being reviewed.
What is the difference between appealing to the Board of Assessment Review versus going to court in Cumberland County?
The Board of Assessment Review is your first level of appeal after the assessor denies your abatement request, and it's a less formal, less expensive option that doesn't require an attorney. The Board consists of local appointed citizens who review property tax appeals, and the process is designed to be accessible to homeowners. If the Board denies your appeal or you disagree with their decision, you can then appeal to Maine Superior Court within 60 days for residential properties (or to the State Board of Property Tax Review for commercial properties over $1 million). Court appeals are more formal, often require legal representation, involve stricter rules of evidence, and can be significantly more expensive. Most property tax appeals in Maine are resolved at the assessor or Board of Assessment Review level, making it important to present your strongest case early in the process.

Official Resources

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