Property taxes are a key part of homeownership—and in the Denver metro area, they can be confusing for buyers and even longtime owners. Taxes affect monthly payments, long-term affordability, and investment returns, so understanding how they’re calculated helps you plan smarter.
The good news? Colorado’s property tax system is relatively straightforward once you know the pieces involved.
How Property Taxes Are Calculated in Colorado
Colorado uses a two-step formula to determine property taxes:
1. Assessed Value
This is not the same as market value.
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Residential property is assessed at a percentage of market value
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Commercial and investment properties are assessed at a higher rate
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The assessment rate is set at the state level
2. Mill Levy
A mill levy is the tax rate applied by local governments.
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1 mill = $1 per $1,000 of assessed value
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Mill levies fund schools, cities, counties, fire districts, and special services
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Mill levies vary by location
Property Tax Formula:
Market Value × Assessment Rate × Mill Levy = Annual Property Taxes
Why Property Taxes Vary Across the Denver Metro
Two homes with the same value can have different tax bills depending on location.
Factors That Affect Taxes
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City vs. unincorporated county
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School district
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Special districts (fire, water, metro districts)
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Local voter-approved measures
For example, homes in Denver County, Jefferson County, Douglas County, and Arapahoe County all have different mill levies—even within a few miles of each other.
How Often Are Properties Reassessed?
Colorado reassesses property values every two years.
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Values are based on sales data from an 18-month window
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Rising home values can increase assessed value
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Declining markets can lower assessments
This biennial system helps smooth dramatic year-to-year swings.
What Happens When Home Values Rise?
Higher home values don’t always mean a dramatic tax increase.
Why Increases Are Often Moderate
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Assessment rates may adjust downward
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Mill levies can change
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TABOR limits excessive growth in some cases
Still, fast-appreciating neighborhoods may see noticeable increases over time.
Property Taxes for Buyers: What to Expect
If you’re buying a home in the Denver area:
Important Buyer Notes
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Taxes may increase after purchase if the home hasn’t sold recently
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New construction often has artificially low initial taxes
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Escrow payments are based on estimated future taxes, not prior bills
Pro tip: Always review estimated taxes—not just the seller’s last bill.
Property Taxes for Investors & Rentals
Investment and rental properties are taxed differently than primary residences.
Key Differences
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Higher assessment rate
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No primary residence exemptions
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Greater sensitivity to market value changes
Investors should factor taxes carefully into cash-flow projections.
Can You Appeal Your Property Tax Assessment?
Yes. Colorado homeowners have the right to appeal.
How the Appeal Process Works
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Notices are mailed during reassessment years
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Appeals typically must be filed within a short window
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Supporting evidence includes recent comparable sales
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Adjustments can lower assessed value
Appeals don’t guarantee reductions—but they can be worthwhile if values seem inflated.
How Property Taxes Are Paid
Most homeowners pay property taxes through escrow.
Common Payment Methods
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Monthly escrow with your mortgage
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Semi-annual direct payments (if no escrow)
Escrow amounts are reviewed annually and may change if taxes increase.
Common Property Tax Myths
“My taxes are based on what I paid for my home.”
→ Not directly. They’re based on assessed market value.
“Denver has the highest property taxes in Colorado.”
→ Denver’s taxes are often moderate compared to some suburban metro districts.
“New construction always has low taxes.”
→ Often only temporarily.
How Property Taxes Fit Into Long-Term Planning
Understanding property taxes helps you:
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Budget accurately
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Compare neighborhoods more effectively
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Evaluate investment performance
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Avoid escrow surprises
It’s one of the most overlooked—but important—parts of buying and owning real estate.
Final Thoughts: Knowledge Is the Best Tax Strategy
Property taxes in the Denver area are manageable and predictable when you understand how the system works. By knowing how assessments, mill levies, and reassessments interact, homeowners and buyers can plan confidently and avoid surprises.
If you’re buying, selling, or investing in the Denver metro area and want help evaluating property taxes by neighborhood, the Living Colorado Team is here to help.
👉 Get local insight at:
https://LivingColoradoTeam.com