
Property Tax Assessment Data
Request a Demo
Request a Quote
- Determine and analyze real estate taxes
- Support comparable analyses on properties
- Confirm property characteristics and legal descriptions
- Verify data for loan origination during the underwriting process
Professionals in real estate, mortgage, capital markets and many other industries depend on Black Knight’s best-in-class tax assessment data for the property information they need. Our high-quality property tax assessment data provides 99.99% nationwide coverage and includes details on more than 156.3 million property records.
- Overview
- Features
About Our Property Tax Assessment Data
Our data delivers up-to-date information that includes:
- APN
- Property owners
- Owner mailing address
- Property address
- Occupancy status
- Legal description
- Assessed, market and tax values
- Tax exemptions
- Property/land use
- Lot size and building area
- Square footage
- Number of bedrooms/bathrooms, etc.
- Building improvements and other structural details
Rigorous Quality Control Process Delivers Data You Can Count On
Black Knight collects the majority of the data directly from assessors’ offices, enabling us to verify and update the information through a rigorous quality control process. Our QA includes double-keying critical data fields, running the data through a sophisticated platform with enhanced business rules to uncover subtle issues, and performing field-level validations for 99.99% of counties.
Maximize the Use of Your Data for the Best Results
We don’t just give you the data – we’re available to help you optimize it to support your vision and goals. Our highly experienced team leverages their deep, first-hand knowledge to provide you with powerful insights on how to best use the property tax assessment information. We also offer flexible permitted-use options, so you have more control of how you want to leverage the data.

Reliable, Up-to-Date Information
The majority of the data is collected directly from the source.
Comprehensive Coverage
99.99% nationwide coverage that provides a single source of data to help save time and reduce costs.
Link to More Data
Can be linked to other data sets providing single-source access to over 200 fields of data.
Easy Access, Quick Delivery
Variety of delivery options to support your business needs, including Bulk, Batch, FTP, XML, API, Match and Append, Rapid Analytics Platform℠ (RAP℠) and SiteXPro℠ on-demand data and solutions.
request a demo
Find out why professionals across the nation depend on Black Knight’s best-in-class property tax assessment data.
Request a Demo

Solutions for Property Tax Assessment Data
Our comprehensive data and actionable analytics solutions are used by industry professionals across the U.S. to help inform their critical business decisions. Select a solution suite below to learn more about our we can help transform your business.
Goals for Property Tax Assessment Data
Black Knight’s exceptional quality data can help you lower costs, improve portfolio management, mitigate risk, find and retain customers, benchmark and more. Gain greater data visibility from a provider with first-hand knowledge and experience in collecting and using data to drive excellence.
black knight News & Insights
other property data Products & Services
As a leading provider of innovative software, data and analytics, Black Knight is transforming the industry by delivering the products you need:
- Software & Technology (0)
- Data (0)
- Analytics, BI & Modeling (0)

Rapid Analytics Platform℠ (RAP℠)
Innovative, cloud-based software for users to access diverse data assets and run advanced analytics.

SiteXPro℠ On-Demand Property Data & Solutions
Web-based access to property reports, automated valuations and our comprehensive property-record database.

Match and Append
Receive the flexibility to customize a wide range of property data to meet your business needs.

Property Tax Data
Suite of tax solutions to help reduce the costs and challenges associated with procuring property tax data.

Public Records Data
Comprehensive, nationwide public records data from over 3,100 county recorder offices across the U.S.

SiteXPro℠ On-Demand Property Data & Solutions
Web-based access to property reports, automated valuations and our comprehensive property-record database.

Rapid Analytics Platform℠ (RAP℠)
Innovative, cloud-based software for users to access diverse data assets and run advanced analytics.