Important Dates
IMPORTANT DATES
The Property Tax Deadlines in New York State vary from county to county. In order to file an appeal during a tax year a Grievance as well as a Petition must be filed by the appropriate deadline.
While your case is being appealed you must pay your taxes by the due date listed on your tax bill or you will incur interest and penalties.
Below is a list of due dates by county for your reference. Please note these dates are subject to change and must be verified each year. The dates are listed for general information only and should not be relied upon without verification by the respective municipality.
Please note if your property is in a Village, City or Upstate (Westchester or higher) these dates may not apply and you should call to confirm.
NASSAU COUNTY
Deadlines to Protest Taxes
County
March 1 – File Grievance
April 30 – File Petition
Village
Third Tuesday of February – File Grievance
April 30 – File Petition
Deadlines to Pay Taxes
County
General Taxes – First Half February 10; – Second Half August 10
School Taxes – First Half; November 10; Second Half May 10
Villages
Most due July 1
ASIE Deadline
If you own an income-producing property you must supply the Annual Survey of Income and Expense to the Nassau County Department of Assessment by April 1.
SUFFOLK COUNTY
Deadlines to Protest Taxes
Town
Third Tuesday of May – File Grievance
July 31 – File Petition
Village
Third Tuesday of February – File Grievance
April 30 – File Petition
Deadlines to Pay Taxes
Town
First Half January 10; – Second Half May 31
Village
Most due July 1
NEW YORK CITY
Deadlines to Protest Taxes
March 1 – File Grievance
October 24 – File Petition
Deadline to File RPIE -June 1
Must be filed by property owner online
Deadlines to Pay Taxes
If your assessment is lower than 250,000 pay in 4 installments due:
July 1
October 1
January 1
April 1
Deadlines to Pay Taxes
If your assessment if over 250,000 pay in 2 installments due:
July 1
January 1
UPSTATE
**PLEASE NOTE THE DEADLINES BELOW DO NOT APPLY TO ALL UPSTATE TOWNS. PLEASE CALL TO CONFIRM IF YOU ARE UNSURE.
Westchester County
Deadlines to Protest Taxes
Third Tuesday of June – File Grievance
September 15th – File Petition
Villages
Third Tuesday of February – File Grievance
April 30th – File Petition
Deadlines to Pay Taxes
Town/County Bill – April 30
School Bill – First Half September 30; Second Half January 31
Villages
Most Due in June
****there can be exceptions ie: if you are located in a City
Most Other Upstate Counties
Deadlines to Protest Taxes
Towns
Third Tuesday of May – File Grievance
July 31 – File Petition
Villages
Third Tuesday of February – File Grievance
April 30 – File Petition
Deadlines to Pay Taxes
Town/County Bill – January 31
School Bill – September 30
Villages
Most Due in June