The Town of Palermo operates on a calendar year, from January to December. 2022 Taxes were committed on September 17th 2022, with payment due on November 17th 2022. Taxes are paid once per year. The interest rate for unpaid 2022 taxes is 4% annually; that rate was changed by Palermo voters at our 2022 Town Meeting.
You can find more information about Maine state taxes and regulations at the Maine Revenue Service's website.