The Town of Kittery operates on a fiscal year, July 1 to June 30.
Real estate and personal property taxes are billed in three installments and mailed out a minimum of 30 days prior to each due date. Taxes are collected in arrears, covering the following period:
- Period: July 1 - October 31
- Due: October 31
- Period: November 1 - February 28/29
- Due: February 15
- Period: March 1 - June 30
- Due: May 31