Assessor's Office

Business Personal Property

• Business Personal Property Overview
• About Business Personal Property Declarations
• Business Personal Property value appeals are accepted as on-time June 15 through July 2 each year.
  Appeal your Business Personal Property valuation.

Senior Tax Exemption

The Colorado Constitution establishes a property tax exemption for qualifying senior citizens, surviving spouses of senior citizens who previously qualified, and for disabled veterans.

Applications must be filed no later than July 15 for the exemption to apply to your tax bill the following year.

• Senior Tax Exemption Qualifications, Amount, Forms, and Instructions

Valuation Appeals—Notice of Determination

• About your Notice of Determination
• Assessment Calendar

Property Information, Mapping, & Data

Property Search

• Property Search
• Property Search Help

Property Data Download

• Downloadable Data Sets

Records Policies

• The Assessor’s Office policies reflect those of Boulder County, outlined in the Colorado Open Records Act (CORA).

Comparable Property Sales

• Current 2017/2018 Tax Year Base Period Sales

Recent Sales

• Recent Sales Activity—lists of sales for specified time frames. These lists are not intended to be used for real property assessment appeals.

Real Property Value Appeals were accepted May 1 through June 1, 2018

The Assessor’s Office will mail Notices of Determination to property owners who filed on-time appeals at the end of August, 2018. Property owners will have until September 15, 2017 to appeal their determination to the Board of Equalization.

Ask a Question about Your Property

• Real Property appeals are accepted as on-time May 1 through June 1 each year.
  Ask a question about your real property.
  Search for your Notice of Value (NOV) online.

Learn more about:

• The Assessment Process
• Business Personal Property
• Agricultural Land
• Tax Exemptions for Seniors & Disabled Veterans
• Additional Resources