If you already qualify for Colorado's Senior Citizen Property Tax Exemption, one real question tends to hold people back from downsizing: do you lose it if you move?

How the exemption generally works?

To qualify, you typically need to be at least 65 years old and to have owned and occupied your home as your primary residence for the 10 years immediately before applying. Qualifying seniors get 50% of the first $200,000 of their home's actual value exempted from property tax a meaningful savings if you've been in your home a long time. (Colorado has adjusted this program's rules before and could again, so treat "10 years" and "50% of $200,000" as the general shape of the benefit, and confirm the exact current figures with your county assessor.)

How much savings will I see with a senior tax exemption?

It depends. The actual dollar savings vary by the property's assessment and local mill levies. That maximum exemption applies whether the home is worth $270,000 or $1 million. Because of that, the exemption represents a much larger percentage of a lower-priced home. A $1M home may see a savings of about $1000/year whereas a $270K condo could see a savings of $600/yr.

Without any special provision, moving resets the clock

If you sell a home where you'd qualified and buy a new one, the standard rule is that you lose the exemption on the new property until you've owned and occupied it for another 10 years. For a lot of long-time homeowners, that's a real disincentive to downsize, even when downsizing makes sense in every other way.

A separate portability provision can sometimes bridge that gap

Colorado law includes a mechanism that, when in effect, lets a senior who previously qualified for the exemption on a different Colorado property claim the equivalent benefit on a new home without waiting out another 10 years, as long as they own and occupy the new property as their primary residence. Where it applies, it delivers the same financial result as the standard exemption. SB24-111 has more details on this provision.

Whether that provision is currently active is exactly what you need to confirm before counting on it

Portability of this kind has historically been tied to specific legislative windows and requires periodic renewal to continue it isn't a permanent, set-it-and-forget-it feature of the law. I'm not a tax advisor, and property tax law shifts from one legislative session to the next before you factor this into your downsizing math, confirm current eligibility and status directly with your county assessor's office or a tax professional. I can point you toward that conversation, but I won't be the one giving you the final answer on it.

Why this matters for your decision?

If you've been sitting on a downsizing decision partly because you assumed you'd lose this exemption, that assumption may no longer be true. It's worth a five-minute call to your county assessor before you rule out a move on tax grounds alone.

How This Fits Into a Move You’re Already Considering

I’m not the one who determines your eligibility, your county assessor’s office is, and that’s exactly where this conversation should start if the exemption is a factor for you. What I can do is help you think through the full financial picture of a move alongside it: what your current home would likely sell for, what a comparable 55+ home costs in the areas you’re considering, and how the numbers compare once you’ve confirmed your exemption status. Taxes are one piece of a bigger decision, not the whole decision.

— Trina Oyloe, SRES® | Your South Metro Denver Realtor
303-378-9333 | Trina@RealtorTrina.com

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This post is for general informational purposes only and isn't tax or legal advice. Property tax rules and thresholds change over time, and eligibility depends on your specific situation, always confirm current details with your county assessor's office or a qualified tax professional before making a decision.

Colorado's Senior Property Tax Exemption: What Happens to It When You Move