Important Dates and Deadlines for Property Owners

In Massachusetts, the fiscal year begins on July 1 and ends on the following June 30. Property taxes are assessed for the fiscal year (July 1 through June 30) based on the market value of the property as of the previous January 1, plus any improvements up to June 30.


January 1st
Property Assessment Date for the following fiscal year
February 1stProperty Tax Abatement applications due
March 1st
  • 3ABC forms due
  • Personal Property Form of Lists due
April 1st
  • Income and Expense forms due
  • Property Tax Exemption and deferral applications due
June 30
Fiscal year ends
July 1st
Fiscal year begins
December 1stChapter Land applications (61,61A,61B) filing deadline