Tax History



The historical record of property taxes assessed on a property by the County Tax Assessor. The data includes the valuation used to establish the tax amount, the applicable tax, and any exemptions 

ATTOM ID 145695081
Tax Year 2013
Assessed Value $48,399
Assessed Land Value $8,050
Assessed Improvement Value $40,349
Market Value $138,284
Market Land Value $28,000
Market Improvement Value $115,284
Homeowner Exemption $0
Disabled Exemption $0


Mortgage: As part of risk mitigation, mortgage companies have a need to closely monitor property prices after mortgages and other loans have been provided.

Property Analysis: Any analysis based on property values can make use of the assessed values as an indication of property values

Note: Market values sourced from County Tax Assessors are usually considered to be only a rough approximation of a property's value. For applications requiring a more accurate estimate of a property's value, AVM models should be used. See AVM. Property listings can also provide an alternative source of a property's market value.


Many, but not all, counties make assessed values available as public record data that can be collected in the same way as other data published by County Tax Assessor. ATTOM Collects this data and matches it against its property databases, assigning an ATTOM ID which allows our customers to cross-reference this data with other property data. Counties update assessed values at most once per year, with some counties only updating data every 2-3 years.


The following table summarizes the number of properties tax records collected each year

Year Properties Year Properties
2010 2.6 million 2017 146.9 million
2011 32.3 million 2018 149.9 million
2012 79.4 million 2019 150.4 million
2013 97.4 million 2020 152.7 million
2014 104.7 million 2021 154.7 million
2015 116.1 million 2022 138.2 million
2016 141.7 million 2023* 7.7 million

Tables and Views

The following tables can be used to access Address information. When delivering solutions to customers, some or all of the address information found in these tables may be consolidated into one or more views.


The latest known assessed value for each property. See Assessed Values. Each county has its own timetable as to when it published the assessed values of properties.

Rows: 167 million
Columns: 14
Family: Property
Type: Point


Property values assessed by County Tax Assessor for each year on US properties.

Rows: 1.5 billion
Columns: 25
Family: Property
Type: Point

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