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A Message from the Supervisor

“Welcome to Islip, the 3rd largest town in New York State, but with an endearing small town feel. We are so proud of our town…our beaches, golf courses, marinas, parks, housing opportunities for all, businesses, industrial parks, healthcare and educational institutions including our own Islip MacArthur Airport that provides many job opportunities. I sincerely hope you find this website helpful.” - Angie

May 17th, 2019 – Alexis Weik, Receiver of Taxes, reminds all Islip Taxpayers, that second half taxes are due May 31, 2018. THE LAST DAY FOR PAYMENT OF CURRENT TAXES AT THIS OFFICE will be THURSDAY, MAY 31, 2018, at which time the office will be open from 8:30 A.M. to 7:00 P.M.

The Tax Office, located at 40 Nassau Ave., Islip, is open Monday through Friday from 8:30 AM to 4:30 PM. The office will be closed on Monday, May 28, 2018 in observance of Memorial Day.

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