Real Estate Tax Information Real estate/personal property taxes: The Town of Northport tax bills are mailed to property owners, usually in July of each year, and are due in two installments:  September 30th and March 1st.  Taxes may also be paid in full upon receipt or anytime before the due dates with interest accruing.  Interest is charged on the unpaid balance beginning on the day after those dates.  The amount of interest to be charged is set by the residents at the annual town meeting. Please have your bill(s) or account number(s) with your payment to ensure proper credit to your account.  We welcome partial payments on all currect accounts as payments may be made at any time. For 2009 property tax information, click this link. Maine Resident Property Tax and Rent Refund forms: Click this link to download forms or visit website. For applications for various tax relief exemption forms, click on the links below: Blind Exemption Application Farmland Exemption Application Homestead Property Tax Exemption Application Open Space Exemption Application Tree Growth Exemption Application Veterans Exemption Application Veterans Widow/Widower Application Parapalegic Veterans Exemption Application