What is an Assessor?
The Jefferson County Assessor’s Office provides quality customer service by being courteous, respectful and informative while identifying, describing and valuing all property within Jefferson County in a fair, ethical, accurate and professional manner.
Watch the videos below (English or Spanish) and learn more about who an assessor is and how your property taxes are calculated.
Fri Apr. 15Business Personal Property Declaration Due Date Taxpayers who own taxable personal property (busin...
Sun May 1Notices of Value Go Out The assessor mails a notice of valuation annually ...
Sun May 1 - Wed Jun. 1Real Property Appeal Period If you disagree with your property value, you have...
Assessor’s Office Notices
- We are currently processing deeds recorded in August, 2021.
- For information on property taxes and property values during COVID-19, please view this note from the assessor regarding property taxes and values (PDF).
- To send us an email, please use our contact form.
- If you would like to schedule a time to meet with us, please book an appointment.
Important Alerts for Tax Notices:
- If you did not receive a tax notice for property you own, you may find the tax notice using the Treasurer’s Property Records Search Application. Please search by address or PIN/Schedule #, if known.
Click the button below to search Property Records.
The Assessor is available anytime to present the Re-Appraisal Valuation and Assessment Process. Please contact the Assessor’s Office to schedule.
If a property owner believes the assessor has incorrectly valued or classified their property or business personal property, an appeal may be filed.
The assessment process involves setting standards for fair and equitable values, discovering and listing information about properties and determining property values.
This is your one-stop-shop to find all of the change of address forms you need to inform the Jefferson County Assessor's Office of an address change.
Find documents and forms related to the Assessor's office.
Find questions people ask the Jefferson County Assessor frequently.
See Assessor's online services.
Business personal property must be reported to the Assessor’s Office every year by April 15 so that the Assessor’s Office can value it for taxation purposes. According to § 39-1-102(11), C.R.S., personal property includes “everything that is the subject of ownership and that is not included within the term ‘real property.’”
You can find information about the appraisal of commercial property as well as the commercial income survey forms in this section.
The property description department identifies property, maintains and updates the assessor parcel maps, updates the ownership records for the tax roll per recorded documents and assigns new schedule numbers and parcel numbers for new divisions of land.
Get all the information you need about property taxes, how they are calculated, the dates you need to know and the exemptions for disabled veterans and seniors.
Sales files used in reappraisal for the mass appraisal analysis and value compliance review
Certification of Values, Mill Levies, Abstract Reports
The Jefferson County Assessor's Office provides quality customer service by being courteous, respectful, and informative while identifying, describing and valuing all property within Jefferson County in a fair, ethical, accurate and professional manner.