Key Dates on Assessment Calendar

May 1st(Taxable Status Date):  Assessments reflect the ownership and physical condition of the property as of this date.  In addition, exemption applications must be filed / postmarked by this day. 

June 1st(Tentative Assessment Roll):  Date tentative assessments are made available. This is also the date that CHANGE OF ASSESSMENT NOTICES are mailed for any property seeing a change in assessment including changes resulting from the systematic analysis, building permits, inventory discrepancies, etc.  If a property owner disagrees with the assessed value of their property, a grievance may be filed beginning this day.  
June 1st
thru THIRD TUESDAY in June:
   Timeframe to file a grievance.  The Board of Assessment Review convenes on the third Tuesday in June (Grievance Day).

September 15th(Final Assessment Roll):  Date on which final assessments are made available and the first day to file Small Claims Assessment Review / Certiorari petitions.  Final assessments include all changes made by the Board of Assessment Review. 

July 1st of Preceding Year (Valuation Date):   The Valuation Date is the date upon which the value of your property is based. In the Town of Mamaroneck the Valuation Date is July 1st of the prior year.   For instance, assessments on the 2018 assessment roll  were based on the value of property as of July 1, 2017.