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pdf 2021-2022 Tentative Assessment Roll ( pdf, 16.82 MB ) (27 downloads)
pdf 2022-2023 Final Assessment Roll ( pdf, 19.01 MB ) (26 downloads)
pdf 2022-2023 Tentative Assessment Roll ( pdf, 16.80 MB ) (23 downloads)
pdf 2023-2024 Final Assessment Roll ( pdf, 16.82 MB ) (26 downloads)
pdf 2023-2024 Tentative Assessment Roll ( pdf, 16.84 MB ) (23 downloads)
pdf 2024-2025 Tentative Assessment Roll ( pdf, 19.10 MB ) (44 downloads)
pdf 2025/2026 Tentative Assessment Roll ( pdf, 19.12 MB ) (97 downloads)
pdf Chapter 14. Code of Ethics and Financial Disclosure Law Article IV. Conflicts of Interest and Disclosure ( pdf, 125 KB ) (33 downloads)
pdf Commercial Assessment Estimate Request Form ( pdf, 718 KB ) (35 downloads)
pdf Disclosure Affidavit For Town of Islip Officers and Employees ( pdf, 192 KB ) (35 downloads)
pdf FORM RP-467-Renewal ( pdf, 508 KB ) (67 downloads)
pdf Residential Assessment Estimate Request Form ( pdf, 99 KB ) (37 downloads)
pdf RP-421-F: Residential Capital Improvement ( pdf, 54 KB ) (22 downloads)
pdf RP-425-B: Application for Basic STAR Exemption ( pdf, 651 KB ) (27 downloads)
pdf RP-425-E: Application for Enhanced STAR Exemption ( pdf, 666 KB ) (45 downloads)
pdf RP-425-Wkst: Income for STAR Purposes Worksheet ( pdf, 335 KB ) (33 downloads)
pdf RP-425–IVP: Supplement to Form RP-425–E ( pdf, 709 KB ) (38 downloads)
pdf RP-457: First Time Homebuyer - New Construction ( pdf, 53 KB ) (21 downloads)
pdf RP-458-A Instructions ( pdf, 188 KB ) (56 downloads)
pdf RP-458-a-Dis: Alternative Veterans Exemption - Disability ( pdf, 86 KB ) (72 downloads)