2027 Property Tax Due Dates
Varies by town
First installment (Oct-Nov typical)
Varies by town
Second installment (Mar-Apr typical)
Payment Methods
Online, Mail, In-Person
Knox County Treasurer
How to Pay
Online
Pay using credit card or e-check
By Mail
Mail check payable to Knox County Treasurer
In Person
Visit the Treasurer's office
About Property Taxes in Maine
Maine property taxes are administered at the municipal level — the state has no county-level property tax. Each of Maine's cities and towns has its own assessor who determines property values and its own mill rate. Property is assessed at "just value," which means 100% of market value (though practice can vary by municipality). Maine has no state property tax. All property tax revenue goes to municipalities to fund local services and education. Due dates vary by municipality, with most bills due in the fall or split between fall and spring.
Payment & Assessment
Property tax due dates in Maine vary by municipality: Most towns bill annually with taxes due in September or October. Some municipalities split the bill into two semi-annual payments, typically due in fall and spring. A 7% annual interest rate (or the rate set by state law) applies to late payments. Contact your town tax collector for your specific due date and payment options. Most municipalities accept payment online, by mail, or in person.
Statewide framework for Maine. Your county's specific rates and deadlines are shown above.
Other Counties in Maine
About Knox County
Knox County is a county located in the state of Maine, United States. As of the 2020 census, the population was 40,607. Its county seat is Rockland. The county is named for Revolutionary War general and Secretary of War Henry Knox, who lived in the county from 1795 until his death in 1806. The county was established on April 1, 1860, and is the most recent county to be created in Maine. It was carved from parts of Waldo and Lincoln counties. The Union Fair, started in 1868, began as the efforts of the North Knox Agricultural and Horticultural Society.
Source: Wikipedia — content available under CC BY-SA 4.0
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Due dates shown are for reference only. Contact your county treasurer's office to confirm official deadlines before making payments.