The Department of Finance values your property every year as one step in calculating your property tax bill.

FY2021 Tentative Property Assessment Data
(All NYC Properties)

The City's Tentative Assessment Roll lists the assessed value of every property.


FY21 Database Files by Tax Class Compressed
.zip file
Tax Class 1 72M
Tax Classes 2, 3 and 4 43M
Record Layout

NYC Property Tax Maps

The tax maps are currently being updated and will be available soon.

Class 1 Property Tax Estimator
Class 1 Property Tax Guide
Class 1 Property Tax Guide
Class 2 Property Tax Guide
Class 2 Property Tax Guide

Read more about property valuation and assessment:


Notice of Property Value (NOPV)
Challenge Your Assessment
Correcting Property Assessment Clerical Errors
Calculating Your Property Taxes
Assessment Definitions
Real Property Income & Expense (RPIE)
Real Estate of Utility Companies (REUC)
Statements of Assessment Procedures and Guidelines
Assessment Roll Archives

Download All NYC Property Data

The Department of Finance has made the data for all NYC properties available on the NYC Open Data portal for download. Visit the Open Data page for more information.