Thousands of Colorado homeowners opened their statements this year expecting little to change and found the opposite. Some Front Range households have reported jumps of 20 to 40 percent, and many of those homes had not been remodeled, expanded, or sold. The numbers simply went up. If your latest Colorado property tax bill looks heavier than you remember, you are not imagining it, and you are far from alone.
Here is what is driving the increase, how the system actually works, and the concrete steps you can take to challenge a bill you believe is too high.
A Bill That Caught Homeowners Off Guard
For several years, temporary state relief softened the blow of rising home values. During the pandemic-era housing surge, lawmakers passed short-term measures that trimmed assessment rates and carved out value deductions, cushioning owners against the steep climb in what their homes were worth on paper.
Those cushions have now expired. The relief was always scheduled to phase out, and the bills arriving in 2026 reflect the first full year without it. Even an owner whose home value barely moved can owe noticeably more than they did two years ago, because the temporary discount that quietly lowered the previous bill is gone.
How Colorado Property Tax Actually Works
Understanding the increase starts with the formula every county uses: actual value multiplied by the assessment rate, multiplied by the local mill levy. Each piece is set by a different authority, which is why two similar homes a few miles apart can owe very different amounts.
Your county assessor sets the actual value, Colorado's official term for fair market value. The state legislature sets the assessment rate, the percentage of that value that is actually taxed. Local taxing bodies such as school districts, fire districts, and municipalities set the mill levies that fund their services.
Colorado also uses a split residential assessment system that is unusual among states. In recent tax years, the portion of your bill that funds schools has been calculated at roughly 7.05 percent of value, while the portion funding other local services has been calculated at about 6.25 percent. The exact figures are set by the legislature and confirmed each year by the Colorado Department of Local Affairs, so it is worth checking the current rate rather than assuming.
Reassessment Happens Every Two Years
County assessors update home values only in odd-numbered years, and that value then applies to two consecutive tax years. The 2025 reassessment, for example, set the value used for both the 2025 and 2026 tax years. This matters because if your assessed value was too high and you did not challenge it, you can be locked into that figure for a second year.
The Gallagher Repeal Still Echoes
Much of today's picture traces back to 2020, when voters repealed the Gallagher Amendment through Amendment B. For decades, Gallagher had automatically lowered the residential assessment rate as home values rose statewide. With that mechanism gone, rates are now set directly by the legislature, which is why recent years have brought a patchwork of temporary fixes and special sessions rather than an automatic adjustment.
The Colorado Property Tax Rate in Context
Here is the part that surprises newcomers and frustrates longtime residents in equal measure: Colorado still has one of the lowest effective property tax rates in the country. The statewide effective rate sits near half a percent of a home's value, well below the national average.
So how can the rate be low while bills climb? Because a low rate applied to a much larger home value still produces a bigger number. Front Range home values rose sharply over the past several years, and the assessment captured that growth. A modest percentage of a far higher value is what landed in mailboxes this year.
How to Appeal Property Taxes in Colorado
If you believe your assessment overstates what your home is actually worth, you have the right to challenge it. Learning how to appeal property taxes in Colorado is the single most useful thing a frustrated homeowner can do, and it costs nothing to start.
Watch the Deadlines
Each spring, your county assessor mails a Notice of Valuation, typically around the start of May. That notice is your signal to act. In a reassessment year, the deadline to file a protest with your county assessor generally falls in early June, though the exact date is printed on your notice. If the assessor denies your protest, you can escalate to the county Board of Equalization, usually by mid-July, and from there to the state Board of Assessment Appeals, district court, or arbitration.
Build a Real Case
A strong appeal is not an argument that your taxes feel too high. It is evidence that your assessed value is wrong. The most persuasive material is recent sales of comparable homes near you that sold for less than your assessed value. Photographs of needed repairs, a recent appraisal, or documented differences from the homes you are compared to can all strengthen your position. Assessors do make errors, and a well-documented protest is often resolved without a hearing.
Relief Options Worth Knowing
Beyond appealing, Colorado offers programs that ease the burden for those who qualify.
The Senior Property Tax Homestead Exemption is the most significant. Qualifying homeowners who are 65 or older and have owned and lived in their home for at least ten years can exempt half of the first 200,000 dollars of their home's value from taxation. A similar benefit exists for qualifying disabled veterans. The state also runs a deferral program that lets eligible owners postpone certain increases rather than pay them immediately.
If you are researching the Colorado homestead exemption, apply through your county assessor's office and confirm the current eligibility rules, since the details have been adjusted by the legislature in recent sessions. These programs are underused simply because many eligible owners do not know they exist.
When Rising Costs Factor Into a Move
For some homeowners, a higher tax bill is an annoyance to manage. For others, it is one more factor in deciding whether to stay, downsize, or relocate. Property tax rarely drives that choice alone, but it belongs in the math alongside insurance, home values, and the cost of the move itself.
If you are weighing a relocation, it helps to understand the full cost of settling into a given county before you commit. A home in a district with high mill levies can carry a meaningfully larger annual bill than a nearly identical home a short distance away, so the destination shapes your long-term budget as much as the purchase price does.
The move itself is the other half of that equation, and the cost varies widely depending on distance and timing. Households relocating within the state often look for local movers who already know the Front Range, while families arriving from Texas, Florida, or the Southeast usually need long distance movers equipped for an interstate haul. Summer is peak season, so the most in-demand moving companies book out weeks ahead. A last-minute search rarely produces the best crew or the best rate, and rushing the logistics on top of a higher tax bill only adds stress to an already expensive year.
This is where working with experienced Northern Colorado movers who know the region makes a real difference. Skyline Moving Company, a Loveland-based company that also operates an office in Fort Collins, has served the Northern Colorado region for years and has been recognized multiple times as a Reader's Choice award winner in the local Reporter-Herald.
The team handles both local moves across Denver and the wider Front Range and long-distance relocations for the many families now arriving from out of state. Because the company plans its schedule around the region's busy summer window, it recommends booking roughly six to eight weeks ahead of any peak-season date, so the timing of your move never becomes one more thing to worry about.
The practical takeaway is simple: know the tax picture of your destination, and line up your mover early, well before the truck is loaded rather than after.
The Bottom Line
The 2026 property tax shock is real, but it is not a mystery. Temporary relief expired, home values stayed elevated, and the bill reflected both at once. The good news is that homeowners are not powerless. You can read your Notice of Valuation closely, file a protest before the deadline if the numbers look wrong, and claim any exemption you qualify for.
Colorado's property tax system remains among the more affordable in the nation, even after this year's increase. Treating your assessment as something to review rather than simply pay is the difference between absorbing a higher bill and pushing back on one you can prove is too high. For figures specific to your home, your county assessor and the Colorado Division of Property Taxation are the authoritative sources, and both are worth a visit before you write the check.
