Maine property tax by county

Updated

Across Maine's 16 counties, the typical (median) effective property-tax rate is 1.04% of a home's value. Rates vary widely by county, from 0.83% in Hancock County to 1.17% in Knox County. The full ranking is below; each county links to its own page. Figures are from the U.S. Census Bureau.

Property tax rate by county in Maine

Maine counties by effective property-tax rate (Census ACS, reviewed September 23, 2026)
County Effective rate Median tax Median home value
Knox County 1.17% $3,786 $324,900
Androscoggin County 1.16% $2,940 $252,800
Penobscot County 1.16% $2,481 $214,100
Aroostook County 1.12% $1,672 $149,700
Kennebec County 1.09% $2,605 $238,200
Somerset County 1.08% $1,798 $166,900
Cumberland County 1.04% $4,707 $451,200
Franklin County 1.04% $2,027 $194,700
Sagadahoc County 1.04% $3,470 $333,300
Waldo County 1.04% $2,684 $257,700
Washington County 1.04% $1,683 $161,800
Oxford County 0.99% $2,162 $217,300
York County 0.96% $3,787 $395,700
Piscataquis County 0.9% $1,537 $170,200
Lincoln County 0.85% $2,828 $332,700
Hancock County 0.83% $2,561 $310,400

Effective rate = median real estate taxes paid divided by median home value. Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020-2024), tables B25103 and B25077.

Why county rates vary so much

Property tax is set locally, not by the state, so the rate depends on the county, city, school district, and special districts where a home sits, and on how those local budgets compare to local home values. A county with low home values can still have a high effective rate if its local budgets are large, and a wealthy county can have a low effective rate. The effective rate shown here is the median tax bill divided by the median home value, which is the standard way to compare places; your own bill depends on your assessment and any exemptions.

For Maine's income and retirement taxes, see Maine income tax and Maine retirement taxes.

How does Maine assess homes for property tax?

Maine towns assess property at its just value, which the state says is the same thing as market value, fixed as of April 1 each year. There is no single statewide assessment ratio, because each municipality certifies its own ratio of local assessed value to just value and that number drifts as the market moves between revaluations. State law sets a floor rather than a fixed number: a town is expected to keep assessments at a minimum of 70% of just value and no higher than 110%. So the same house can be assessed at a different percentage of market value in two neighboring towns.

Maine has no statewide reappraisal schedule. A town revalues when its own officials decide assessments have drifted too far from market value, and a full revaluation by an outside firm usually requires a town vote to fund it. Maine Revenue Services specifically calls it a myth that the State will step in and order a revaluation when a town's ratio drops below 70%. In between, the local assessor reviews records each year, adds new construction and watches sales.

Is there a homestead exemption in Maine?

Yes. Maine has a homestead exemption of $25,000, applied to just value on a permanent resident's home. There is a wrinkle worth understanding. The exemption removes up to $25,000 of just value, but what comes off your local assessed value depends on your town's certified ratio: the assessor multiplies $25,000 by that ratio, so a town assessing at 91% of market value takes off $22,750 instead of the full $25,000. That sounds like a smaller break, but a town with a lower ratio also carries a higher tax rate, so the dollar saving works out about the same. You must have owned a home in Maine for the 12 months before applying and occupy it as your permanent residence on April 1. Camps and vacation homes do not qualify. Apply once with your town assessor on or before April 1.

Other state relief for homeowners:

Maine sets these rules and each county's property tax office applies them, which is where the application, the filing deadline and the form come from. Some counties add programs of their own; where we have checked a county, its page lists them.

When are property taxes due in Maine?

Maine sets no statewide due date and no statewide number of installments. Each municipality votes its own payment dates when it raises the tax, along with the dates interest starts and the taxes become delinquent, so a town may bill once a year, twice, or quarterly. Check your own tax bill or town office. Towns may also vote a discount of up to 10% for taxpayers who pay early.

That is the state rule. Each county issues and collects its own bill, so the dates printed on your statement are the ones that bind you.

How do you appeal a property assessment in Maine?

You contest the assessed value with the your local assessors, then the municipal board of assessment review or the county commissioners, then Superior Court. The filing deadline is typically 185 days after the commitment date. Start by asking your local assessors in writing for an abatement, and note the clock runs from the date the town commits the tax roll, which is not the same as the date on your bill. If the assessors say no, you have 60 days from that notice to appeal to your town's board of assessment review, or to the county commissioners if your town has not created one. Silence counts as a denial: if the assessors do not answer within 60 days, the application is treated as denied and your appeal clock starts. While an appeal is pending you must keep paying the undisputed part of your taxes or the appeal is put on hold.

Maine property-tax rules from primary state sources (revenue department and statute), reviewed September 7, 2026. Exemption amounts and credits change; confirm the current figures with your county assessor. Sources: assessment, exemptions, due dates, appeals.

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