Print

General Taxation Information

Under Maine State Law, the ownership and valuation of all real estate or personal property subject to taxation shall be fixed as of April 1st.  For fiscal year 2025-2026, that date was April 1, 2025.

After eight (8) months, and no later than one (1) year from the date of commitment, a lien will be placed on all real estate for which taxes remain unpaid.  This lien will be filed in the name of the owner assessed on April 1, 2025.  

FMI on the sale of property and property tax responsibility, please see the information bulletin "Important Notice about Property Taxes for Buyers and Sellers of Real Estate" on the Maine Revenue Website.
 
Tax Due Dates for Fiscal Year 2025-2026: October 20, 2025 and March 11, 2026
Tax Due Dates for Fiscal Year 2024-2025: October 9, 2024 and March 5, 2025.
 
Interest Rates for Fiscal Year 2025-2026: 4.00%
Interest Rates for Fiscal Year 2024-2025: 4.00 %
 
Mil Rate for fiscal year 2025-2026: 10.25 per thousand dollars of valuation
Mil Rate for fiscal year 2024-2025: $9.77 per thousand dollars of valuation 
 
How Are Property Taxes Determined?
Property taxes are levied according to a mill rate. The mill rate is the dollars/cents per $1,000 of value that you will pay in property taxes. For example, if you own a home valued at $200,000 and the tax rate is 9.77 mills (or .00977), then your tax bill will be $1,954.00 (or .00977 x $200,000).
 
In calculating a property tax rate, the legislative body of the municipality (town meeting) determines the amount of revenue needed to be raised by property tax to fund municipal services and pay its school and county assessments. That amount is then divided by the total local assessed valuation to get the local tax rate. For example, a town that has a local assessed valuation of $100 million and needs to raise $2 million in property taxes will require a tax rate of 20 mills to do so ($2,000,000 divided by $100,000,000 equals .020).  
 
The municipal assessor calculates how much must be raised in property taxes based on what the legislative body has approved to provide Town services plus the two assessments levied against the town by the school district and county.
 
A tax commitment listing all the property in town, its value and the taxes that are owed is completed and given to the tax collector who sends out the tax bills. Click here for the complete Maine Municipal Association’s Guide to Property Tax.
 
The Town of Casco collects property taxes in two installments each fiscal year. FY26 (July 1, 2025 - June 30, 2026) tax payments are due on the following dates:
 
  • 1st Half Due: October 20, 2025
  • 2nd Half Due: March 11, 2026