Money and taxes - Western Slope
Why two Archuleta County homes can have different tax bills
A Colorado property tax bill has three moving parts, and the local districts that overlap a parcel are a big reason two similar homes pay different amounts.
Published June 10, 2026 - Last verified June 10, 2026
A property tax bill in Colorado can feel like a single number, but it is built from three separate parts. Understanding them explains why two homes that sold for about the same price in Archuleta County can owe different amounts.
The first part is the actual value, the county assessor’s estimate of what the property is worth. The second is the assessment rate, a percentage set by the state that turns actual value into a smaller assessed value. The third is the mill levy, the local tax rate applied to that assessed value.
The mill levy is where neighbors often differ. A parcel sits inside a stack of local districts, such as a school district, a fire protection district, a water or sanitation district, or a metro district, and each adds its piece to the total. A home just across a district line can carry a different mix, and so a different bill, even with the same value.
Two county offices handle the process. The assessor sets the value. The treasurer sends the bill and collects the money. If a valuation looks wrong, there is a defined appeal process with deadlines.
Tax rates change every year, so this note does not quote any. To see how your parcel is valued and which districts tax it, use the Colorado Division of Property Taxation and the Archuleta County Assessor.