News & Information
Real Property Value Appeals are accepted May 1 through June 10, 2024
How to Appeal Your Property Value
Senior Exemption Applications
Senior Exemption Applications are currently being accepted through July 15. Please visit the Senior Exemptions page to learn more.
Qualifying Veteran with a Disability Exemption & Gold Star Spouse Applications
Qualifying Veteran with a Disability and Gold Star Spouse Exemption Applications are currently being accepted through July 1. Please visit the Veteran Related Exemptions web page to learn more.
Assessor Overview
The Assessor’s Office establishes values every two years for more than 120,000 properties within Boulder County, worth more than $120 billion in market value, using tools such as geographic information systems (GIS) and mass appraisal techniques to perform the appraisal analysis. Property values are used to set tax amounts which the Treasurer’s Office administers and collects.
Connect With Us
- Assessor/Treasurer Change of Address form.
- View the Assessor A-Z guide.
- Ask a question about your Business Personal Property. Appeals are accepted June 15–July 1.
- Ask a question about your Real Property. Appeals are accepted May 1–June 10, 2024.
- Ask a question about your Senior Exemption. Applications must be filed by July 15.
- Search for your Notice of Value (NOV) online.
