Supervisor Tom Croci

View and/or Pay Taxes

Receiver of Taxes

Alexis Weik Receiver of Taxes
Tax Office
40 Nassau Ave
Islip, New York 11751
(631) 224-5580

Tax Due DatesPay OnlineOffice Hours | Pay by Mail | Where Your Taxes Go | Forms

Schedule of Penalty on First Half of Tax
December 1st to January 10th - No Penalty
After January 10th - 1% Penalty
After February 10th - 2% Penalty
After March 10th - 3% Penalty
After April 10th - 4% Penalty
May 11th to May 31st - 5% Penalty

CAUTION: Banking websites which allow the Bill Pay option should caution you that you should not pay your local, state or federal taxes by that method. The process of Bill Pay through a banking site typically sends your payment to a Payment Center and then to a mail-house. This will often result in a late payment.
**This does NOT refer to the Town of Islip Online Tax Payment System.

Also, please note that using a online stamp site or vending machine stamp will not guarantee an official USPS Postmark on an envelope.

January 10th (First Half)
May 31st (Second Half)

** TAX REMINDER:  Please Note:  Both first and second half due dates fall on a weekend. The Tax Office will NOT be open on Saturday, January 10,  2015 or Sunday, May 31, 2015. The last day for 2014/2015 property tax payments without penalty/interest will be Monday, January 12, 2015 and  Monday, June 1, 2015. Please see below for office hours.

After this date, taxes plus penalty and interest must be paid to the Suffolk County Treasurer, Angie Carpenter, 330 Center Drive, Riverhead, NY 11901, (631) 852-3000.



  1.  CLICK HERE and you will be able to view and/or pay your taxes online.
  2. Each visitor will register and will be given access to two parcels.  If you own more than two parcels you will click on support and with proper information, you will be granted access to your additional properties. You will only need to register once.
  3. Any problems or questions regarding the website – you must click on support for assistance. Town of Islip cannot fix online problems. Problems with the payment website are corrected through the online company, not the Town of Islip.

Questions regarding your tax information – please contact the Town of Islip Office of the Tax Receiver at (631) 224-5580.

Questions regarding your assessment or exemptions – please contact the Assessor’s office at (631) 224-5585.

Questions regarding the STAR Program, please call (631) 224-5058.

Methods of Payment:

•   E-Check – with a convenience fee of $2.00 (not collected by the Town of Islip).

•   All Major Credit Cards – with a convenience fee of 2.49% on the amount that is being charged (not collected by the Town of Islip).

**Partial payments will not be accepted online**

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2014 / 2015 Tax Calendar

Regular Office Hours: 8:30 am to 4:30 pm
  Monday through Friday
Office Closed: Wednesday, December 24, 2014 Christmas Eve
  Thursday, December 25, 2014 Christmas Day
Half Day:  8:30 am to 12 noon
  Wednesday, December 31, 2014, New Year's Eve
Office Closed: Thursday, January 1, 2015 New Year’s Day
Special Payment Hours: 8:30 am – 7:00 pm
 ** Monday, January 12, 2015 (Since January 10th falls on a Saturday)
 ** Monday, June 1, 2015 (Since May 31st falls on a Sunday)
**Please note that both first and second half due dates fall on a weekend this year, so the following business day will be the last day for payment without penalty/interest.

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Pay by Mail:
Payments can be made by credit card or by check. Make checks payable to Alexis Weik, Receiver of Taxes. Mail payments to Town of Islip Tax Receiver’s Office, 40 Nassau Avenue, Islip NY 11751. Envelopes must be postmarked by the due dates of January 10th for the first half of your taxes and by May 31st for the second half of your taxes. Refer to the back of your tax bill for penalty information.

Always include a daytime phone number on your check

**No meter postage will be accepted**

**No vending machine or online postage will be accepted without a USPS postmark**

The Office of the Receiver of Taxes is not a policy making office, it is an administrative office. We do not determine the tax rates, we merely collect and distribute the taxes. Taxes are collected in accordance with New York State Real Property Tax laws and the Suffolk County Tax Act.

Town, County and School taxes in Suffolk County cover the period from December 1st through November 30th of the following year. Public Hearings are set for school, county and town budgets. Below is a description of how your taxes are divided up.

School Taxes:
School budgets are set by your local school districts. Every year you have the opportunity to vote on the school budget. This determines the amount of taxes you will pay for schools in your district.

County Taxes:
County Taxes are set by a county budget, approved by the County Executive and the Suffolk County Legislature.

Town Taxes:
Town Taxes are set by a town budget, approved by the Supervisor and Town Board. 

Other Taxes:
Taxes for other districts - (Fire, Ambulance, etc.) are also collected by this department.

**Taxes become a lien on December 1st of each year**

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