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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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pdf RP-467-Questionnaire: SENIOR CITIZEN LOW INCOME EXEMPTION Popular
pdf RP-467-Wkst: Income Worksheet for Senior Citizens Exemption Popular
pdf 2023-2024 Final Assessment Roll Popular
default 2023-2024 Tentative Assessment Roll Popular
pdf Worksheet - Assessor's Office Popular
pdf RP-467 Instructions Popular
pdf FORM RP-467-Renewal Popular
pdf RP-458-b-Dis: Cold War Veteran's Exemption - Disability Popular
pdf RP-458-a-Dis: Alternative Veterans Exemption - Disability Popular
pdf 2022-2023 Final Assessment Roll Popular
pdf 2022/2023 Tentative Assessment Roll Popular
pdf 2021-2022 Final Assessment Roll Popular
pdf 2021-2022 Tentative Assessment Roll Popular
pdf RP-524 Grievance Complaint Form Popular
pdf Disclosure Affidavit For Town of Islip Officers and Employees Popular
pdf Chapter 14. Code of Ethics and Financial Disclosure Law Article IV. Conflicts of Interest and Disclosure Popular
pdf Commercial Assessment Estimate Request Form Popular
pdf Residential Assessment Estimate Request Form Popular
pdf RP-425-B: Application for Basic STAR Exemption Popular
pdf RP-425-Wkst: Income for STAR Purposes Worksheet Popular
pdf RP-425–IVP: Supplement to Form RP-425–E Popular
pdf RP-425-E: Application for Enhanced STAR Exemption Popular
pdf School Tax Relief (STAR) Credit Information Popular
pdf RP-485-B: Exemption Form Business, Commercial or Industrial Property Popular
pdf RP-467: Application for Partial Tax Exemption for Real Property of Senior Citizens Popular
pdf RP-466-C: Volunteer Firefighters/Ambulance Workers Exemption Popular
pdf RP-459-C: Exemption for Disablities & Limited Income Popular
pdf RP-458-B: Cold War Veterans Exemption Popular
pdf RP-458-A: Alternative Veterans Exemption Popular
pdf RP-457: First Time Homebuyer - New Construction Popular