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All Representatives and Attorneys filing on any property as a representative, where you are not the owner, must register and obtain a representative number from ARC. Please email arcoperations@nassaucountyny.gov for further information.
DATE | ITEM DUE |
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February 9, 2024 | Deadline for residential and commercial status change, withdrawals of applications 2024/25 and processing any Consents to Change for tax year 2024/25. |
March 1, 2024 | Last day to file Grievances |
Forms For Attorneys and Other Representative Adobe Acrobat format (PDF) |
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Form AR 10 (PDF) Authorization to Represent an Individual Taxpayer (PDF) |
Residential Rent Roll Template (PDF) |
Commercial Rent Roll Template (PDF) |
Form AR 70 (PDF) ARC Stipulation |
Form AR 71 (PDF) ARC Residential Stipulation |
ARC Stipulation Discontinuance (PDF) |
Consent to Change Attorney Template (PDF) |
Bulk Upload layout and Specification ARC Filing Procedures (PDF) Protest e-File Layout (PDF) Parcel Number Format (PDF) Authorization Image File Specification (PDF) |
AR20 Bulk Upload Layout and Specification AR 20 e-file Layout ARC AR20 Online Filing Procedures AR20 Bulk Upload Attachments Naming Convention AROW AR20 Filing Guide |
Duplicate Applications for Correction filed in 2024 for the 2025-26 year (Updated 4/3/2024 – PDF ~2mb) |
(Updated 4/3/2024 xlsx ~13mb) |
240 Old Country Road
5th Floor
Mineola, NY 11501
Ph: 516-571-3214
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