Anticipating questions on property tax increases that “many homeowners” in Alamosa will face, Alamosa County Treasurer Amy McKinley and Assessor Jason Duncan issued an explainer on reasons for the hikes.
Increases on 2025 property tax bills point back to the Colorado Legislature and action it took to create property tax relief for Coloradans in the tax years 2023 and 2024, according to McKinley and Duncan. In addition, they say, the state legislature changed the residential assessment rates for 2025 as they relate to school districts and local governmental bodies.
“My aim is mainly to educate Alamosa County taxpayers,” Duncan said. “Many will see higher property taxes this year, as the legislative property tax relief enacted by the Colorado legislature (for tax years 2023 and 2024) expires. I want our constituents to understand the reasons behind the increases.”
Here is the full explanation the county treasurer and assessor provided:
The Alamosa County Treasurer’s office and the Alamosa County Assessor’s office want
to explain the 2025 property tax increases for Alamosa County homeowners.
Many homeowners in Alamosa County will be concerned by the increase in their property valuation and property tax bills. There are some key circumstances leading to these increases.
For the 2023 and 2024 tax years, the Colorado legislature provided a $55,000 reduction in actual value for all residential properties. This reduction helped lower property taxes for those two years, but is not in effect for the 2025 tax year.
The 2025 reassessment resulted in a median 12 percent increase in residential property values. This reassessment is based off of comparable home sales from January 1, 2023, through June 30, 2024. A Notice of Valuation was mailed to all property owners in Alamosa County on May 1, 2025.
In addition, the Colorado legislature has changed the residential assessment rates for 2025. The assessment rate for school districts has gone up, while the assessment rates for local governments have been reduced.
Unfortunately, the impact of these factors means an increase in 2025 property taxes for many homeowners.
As an example, a specific home in Alamosa County had a 2024 actual value of $222,135. After figuring in the $55,000 value adjustment, the 2024 taxable value of that home was $167,135, resulting in a 2024 tax bill of $827.82. Without the $55,000 value adjustment, the taxes would have been $1,100.23. Because of market conditions, that home increased in value to $249,015 for 2025, resulting in a tax bill of $1,215.84.
What property owners can do:
The Alamosa County Treasurer has partnered with EscrowTaxes to help alleviate the impact of larger tax bills. Taxpayers can split their property tax payments into smaller monthly payments that may be more manageable. Visit escrowtaxes.com or contact the Treasurer’s office for more information.
If you feel your property values are incorrect, you can contact the Alamosa County Assessor’s office. The period for appealing your property values in 2026 runs from May 1 through June 8.
For further information, contact:
Alamosa County Treasurer
Amy McKinley
8999 Independence Way, Suite 104
Alamosa, CO 81101
(719) 589-3626
amckinley@alamosacounty.org
Alamosa County Assessor
Jason Duncan
8999 Independence Way, Suite 105
Alamosa, CO 81101
(719) 589-6365
jduncan@alamosacounty.org