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News and Updates:

Jefferson County Treasurer Tax Lien Sale 

The tax lien sale is the final step in the treasurer's efforts to collect property taxes. We sell the unpaid property taxes not the property. The Jefferson County Treasurer Tax Lien Sale is an online public auction that will be held November 6 and November 7, 2023.  Please visit our tax lien sale page for more information. 

Jefferson County TABOR Refund Checks to Jeffco Residents

Jefferson County taxpayers will soon receive a TABOR refund check in the mail, as required by the state’s Taxpayer’s Bill of Rights Amendment (TABOR). The Jefferson County Treasurer's Office will cash any check under $200 (with valid ID). Additionally, we ask that you do not send your checks back, please cash them. The funds cannot be used by the county.  

Note from Jefferson County Treasurer

Every tax year I receive a few calls from taxpayers asking me to lower or waive their property taxes for various reasons.  The County Treasurer does not have the legal authority to lower or waive property taxes per state law.  

If you need assistance with paying your taxes, there are programs available for seniors and people with disabilities offered by the state of Colorado.  

If you believe your property has been incorrectly valued or classified, you may file an appeal with the Jefferson County Assessor.

Statewide Property Tax Assessment Rate Changes

As a result of the passage of SB21-293, and due to the failure of Proposition 120, changes to the property tax assessment rates will take effect for tax year 2022 payable 2023. The passage of SB22-238 changed the assessment rates for tax years 2023, 2024 and 2025.  A full explanation of these changes can be viewed on the Colorado Statewide Property Tax Assessment Rates for Tax Years 2022 through 2025 (PDF)

This image provides a simplified breakdown of these rates per property type. A chart of property tax rates by property type from 2022 through 2025

About the Treasurer’s Office

The Jefferson County Treasurer collects property taxes, invest funds, disburses money to cities and districts and acts as county banker.

The County Treasurer does NOT:

  • Raise or lower taxes 
  • Limit government
  • Protect property rights

Taxes are Impacted by the voters and county commissioners.

  1. Property Taxes
  2. Financial Reports
  3. NOTES

Additional Information

Important Dates

The due dates for 2022 payable 2023 were: 

First installment: February 28, 2023
Second Installment: June 15, 2023
OR Full Payment:  May 1, 2023 (since April 30 falls on a Sunday)

Treasurer's Important Due DatesTreasurer Due Dates button

Mailing Address Changes

Mailing address changes for the property tax records need to be with the Assessor’s office and can be changed by visiting the Assessor's Change of Mailing Address Forms page. It is the property owner’s responsibility to update mailing addresses in writing to ensure the receipt of annual property tax and value notifications. 

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Delinquent Property Taxes are Sold at the Tax Lien Sale

Every November the Treasurer’s office has an online auction for unpaid property taxes. We do not sell the property.  The taxes are purchased by investors. The investor that holds the lien will be notified every August of any unpaid taxes and can endorse those taxes to the existing lien. Owners have three years from said tax sale to payoff the lien before it becomes eligible for a Treasurer’s Deed.

Please contact our office to request the amount due. We will only accept cash or certified funds (e.g. Cashier’s Check or money order) payable to Jefferson County Treasurer for payment of a tax lien. Payments need to be received in our office by 5 p.m. the last business day of the month, postmarks are not accepted for tax liens. 

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