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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

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UNDER CONSTRUCTION.
Check back soon.

  • This search component will be specifically geared to 3rd party individuals, i.e. financial intuitions, title companies, Realtors, attorneys, etc. who are looking to verify property tax information. In the meantime, until this option is available, please call the office to verify this information.

  • For PROPERTY OWNERS ONLY, who are looking to view/pay their property taxes, please visit https://tax.islipny.gov/ and create/log into your account. NO 3rd PARTY INDIVIDUALS/COMPANIES ARE ALLOWED TO USE THIS OPTION!