City, Town & Village Governments
New York State Government
U.S. Government

Assessment Review Commission

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Information For Practitioners

Forms Below are ".pdf" Format Forms
Adobe Acrobat Reader® Required
Forms Below are ".doc" Format Forms
MS-Word® Wordprocessor Required
Forms for attorneys and other representatives
Form AR 10
Authorization to Represent an Individual Taxpayer (.pdf file)
Form AR 10
Authorization to Represent an Individual Taxpayer (.doc file)
Form AR 11
Authorization to Represent an Entity, Fiduciary or Attorney-In-Fact (.pdf file)
Form AR 11
Authorization to Represent An Entity, Fiduciary or Attorney-In-Fact (.doc file)
Form AR 12
Withdrawal of Applications for Correction of Assessment (.pdf file)
Form AR 12
Withdrawal of Applications for Correction of Assessment (.doc file)
Form AR 20 - Request for Information (.pdf file) Form AR 20 - Request for Information (.doc file)
Form AR 20 -
Instructions Request for Information
(.pdf file)
Form AR 20 -
Instructions Request for Information
(.doc file)

Residential Rent Roll Template (.pdf file)

Residential Rent Roll Template (.xls file)

Commercial Rent Roll Template (.pdf file)

Commercial Rent Roll Template (.xls file)

AR 70 - ARC Stipulation (.pdf file) AR 70 - ARC Stipulation (.doc file)
AR 71 - ARC Residential Stipulation (.pdf file) AR 71 - ARC Residential Stipulation (.doc file)
AR 80 - ARC Release (.pdf file) AR 80 - ARC Release (.doc file)
ARC Stipulation of Discontinuance (.pdf file) ARC Stipulation of Discontinuance (.doc file)
SCAR Withdrawal (.pdf file) SCAR Withdrawal (.doc file)
Bulk upload layout and specifications
Protest e-File Layout (.pdf file) Protest e-File Layout (.xls file)
Parcel Number Format (.pdf file) Parcel Number Format (.doc file)
Authorization Image File Specifications (.pdf. file) Authorization Image File Specifications (.doc file)
Ratios and projected tax rates
Nassau County Ratios (.pdf file) Nassau County Ratios (.xls file)
Final School Tax Rates for Year 2011-12
Note: updated 09/27/2011 - (.pdf file)

Final School Tax Rates for 2011-12
Final School Tax Rates for Year 2011-12
Note: updated 09/27/2011 - (.xls file)

Final School Tax Rates for Year 2011-12
ESTIMATED School Tax Rates for Year 2012-13
Note: updated 09/27/2011 - (.pdf file)

ESTIMATED School Tax Rates for 2012-13
ESTIMATED School Tax Rates for Year 2012-13
Note: updated 09/27/2011 - (.xls file)

ESTIMATED School Tax Rates for Year 2012-13
School District Names (.pdf file) School District Names (.xls file)
Spreadsheets containing data on individual parcels
Applications for Correction filed in 2014 for the 2015-16 (updated: 6/5/14)
Large File - Allow Adequate download time (.zip format - 9 mB)
note: Spreadsheet contains multiple sheets
Duplicate Applications for Correction filed in 2014 for the 2015-16 year (updated: 6/5/14)
(.zip format - 484 kB)