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Representative Page
Below are forms for various practitioners of assessment review (AR), provided by the Assessment Review Commission (ARC).
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.
ARC Representative Due Dates
| DATE | ITEM DUE |
|---|---|
| February 19, 2021 | Deadline for residential status change and processing any Consents to Change |
| March 1, 2021 | Deadline for commercial status change and processing of Consents to Change |
| March 1, 2021 | Last day to file Grievances |
| Forms For Attorneys and Other Representative Adobe Acrobat format (PDF) |
|---|
| 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 Protest e-File Layout (PDF) (NEW for 2022/23) 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 2021 for the 2022-23 year (updated 5/31/21) (PDF ~3mb) |