QUICK ACCESS


Town Square

Permits & Applications Portal

Documents Center

Report a Concern

FAQ

Town Phone Directory

Loading...

Folder Assessor

Documents

Select Toggle Title
pdf 2021-2022 Tentative Assessment Roll ( pdf, 16.82 MB ) (75 downloads)
pdf 2022-2023 Final Assessment Roll ( pdf, 19.01 MB ) (91 downloads)
pdf 2022-2023 Tentative Assessment Roll ( pdf, 16.80 MB ) (79 downloads)
pdf 2023-2024 Final Assessment Roll ( pdf, 16.82 MB ) (61 downloads)
pdf 2023-2024 Tentative Assessment Roll ( pdf, 16.84 MB ) (85 downloads)
pdf 2024-2025 Tentative Assessment Roll ( pdf, 19.10 MB ) (129 downloads) Popular
pdf 2025/2026 Tentative Assessment Roll ( pdf, 19.12 MB ) (1305 downloads) Popular
pdf Chapter 14. Code of Ethics and Financial Disclosure Law Article IV. Conflicts of Interest and Disclosure ( pdf, 125 KB ) (88 downloads)
pdf Commercial Assessment Estimate Request Form ( pdf, 718 KB ) (96 downloads)
pdf Disclosure Affidavit For Town of Islip Officers and Employees ( pdf, 192 KB ) (106 downloads) Popular
pdf FORM RP-467-Renewal ( pdf, 508 KB ) (257 downloads) Popular
pdf Residential Assessment Estimate Request Form ( pdf, 99 KB ) (124 downloads) Popular
pdf RP-421-F: Residential Capital Improvement ( pdf, 54 KB ) (70 downloads)
pdf RP-425-B: Application for Basic STAR Exemption ( pdf, 651 KB ) (108 downloads) Popular
pdf RP-425-E: Application for Enhanced STAR Exemption ( pdf, 666 KB ) (142 downloads) Popular
pdf RP-425-Wkst: Income for STAR Purposes Worksheet ( pdf, 335 KB ) (80 downloads)
pdf RP-425–IVP: Supplement to Form RP-425–E ( pdf, 709 KB ) (94 downloads)
pdf RP-457: First Time Homebuyer - New Construction ( pdf, 53 KB ) (67 downloads)
pdf RP-458-A Instructions ( pdf, 188 KB ) (339 downloads) Popular
pdf RP-458-a-Dis: Alternative Veterans Exemption - Disability ( pdf, 86 KB ) (395 downloads) Popular