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Colorado senior property-tax guide
Last updated: 26 September 2026
Colorado does not have one automatic property-tax break for everyone over 65. The best route depends on how long you have owned your home, whether you moved, your income, and whether you need to lower a future bill or deal with a bill that is already due.
Bottom Line
If you have owned and lived in the same Colorado home for at least 10 years, start with your county assessor and ask about the Senior Property Tax Exemption. The 2026 on-time and late filing windows have passed. If you moved after previously receiving that exemption, the temporary Qualified Senior Primary Residence Classification may have helped for tax year 2026, but its 2026 filing window is also closed and the program ends after tax year 2026.
If you have a low income, the separate Property Tax/Rent/Heat Rebate, called the PTC Rebate, may still be useful. The Colorado Department of Revenue says 2025 PTC claims can be filed through December 31, 2027.
Start Here
- Need to lower a future bill? Call your county assessor. Ask about the regular senior exemption and what to prepare for the next filing cycle.
- Need cash back for 2025 costs? Check the official PTC Rebate page and the 2025 PTC booklet.
- Cannot pay a bill now? Call your county treasurer before the account becomes more delinquent. Ask about payment options and whether any local help is available.
| Your situation | Start with | Current status |
|---|---|---|
| Long-time homeowner, age 65+ | County assessor | 2026 filing is closed; prepare for the next cycle |
| Moved after receiving senior exemption | County assessor | Temporary 2026 classification is closed and ends after 2026 |
| Low-income owner or renter | Department of Revenue | 2025 PTC claim remains available through December 31, 2027 |
| Cannot pay current property tax | County treasurer | 2026 deferral application window closed April 1 |
What Has Changed
- The move-related senior classification is ending. Colorado enacted 2026 property-tax changes that end the Qualified Senior Primary Residence Classification for property tax years beginning on or after January 1, 2027.
- Do not use a new deadline rule for the 2026 move classification. A 2026 law changes the statutory dates to July 15 and August 15 starting January 1, 2027, but the temporary classification itself ends after tax year 2026. For tax year 2026, the March 15 regular deadline and July 15 late deadline controlled. See the signed deadline act.
- Deferral administration changed. County treasurers took back a larger role in applications beginning in 2026, while the state portal remained available during the transition. The tax-growth deferral category was eliminated for new applications.
Compare Colorado’s Main Property-Tax Programs
These programs solve different problems. An exemption lowers taxable value. A rebate can return part of past costs. A deferral is a loan that postpones payment. If those terms are confusing, the GFS guide to property-tax relief terms explains the difference.
| Program | Best fit | Main 2026 rule | Repay? |
|---|---|---|---|
| Senior Property Tax Exemption | Long-time owner-occupants | Age 65 by January 1 and 10 years in the same primary home | No |
| Qualified Senior Primary Residence Classification | Some seniors who moved after receiving the exemption | Prior senior exemption in 2020 or later; current home is primary residence | No |
| PTC Rebate | Low-income owners or renters | 2025 claim uses 2025 income, age, residency, and payment rules | No |
| Property Tax Deferral | Eligible seniors who need taxes financed | Application period was January 1 through April 1 | Yes, with interest |
You can also compare Colorado with other states in our property tax relief guide. For a quick screening path, try the GFS property-tax relief finder, then confirm any result with the responsible official office.
Senior Property Tax Exemption
What it does: For a qualifying home, 50% of the first $200,000 of actual value is exempt from property tax. That means up to $100,000 of actual value can be removed from the taxable calculation. Your dollar savings still depend on local assessment and tax rates. Boulder County’s current senior exemption page shows the same statewide formula.
Who may qualify in tax year 2026: A senior generally must have been born on or before January 1, 1961 and must have continuously owned and occupied the home as a primary residence since before January 1, 2016. The program also has rules for some surviving spouses and certain ownership or occupancy situations. Your county assessor makes the determination.
Where to apply: Apply through your county assessor, not the state tax department. The statewide on-time deadline is July 15. Colorado law also allows a late senior exemption application through August 15, but a late denial cannot be appealed through the normal exemption appeal route. Both 2026 dates have passed. Use the state property tax map to locate the correct county office.
When the savings show up: An approved tax-year 2026 exemption affects the tax bill sent in early 2027. If your exemption is already active and your qualifying facts have not changed, you usually do not file a new application every year. Colorado law requires notice to the assessor within 60 days when a change in ownership or occupancy would end eligibility. The state exemption FAQ is a useful place to confirm current rules.
Reality check: Turning 65 does not automatically reduce your bill. The regular senior exemption is built around age plus a long ownership-and-occupancy history.
If You Moved: The 2026 Senior Classification
Colorado created the Qualified Senior Primary Residence Classification to give a similar tax reduction to some seniors who had already earned the regular senior exemption but later moved and lost it.
Who could qualify for 2026: The applicant generally had to have received the regular Senior Property Tax Exemption for tax year 2020 or later on a prior property, no longer qualify for that exemption, and own and occupy the new property as a primary residence as of January 1. The reduction is similar to the senior exemption: up to $100,000 of actual value may be removed from the taxable calculation, subject to the program’s assessed-value floor.
2026 deadlines: The regular filing deadline was March 15, 2026. A late application could be filed through July 15, 2026, and a late denial was final. Those dates are now closed. Boulder County’s current senior residence page confirms the 2026 deadline has passed.
Do not plan on this temporary route for 2027. Colorado’s 2026 legislation ends the classification for property tax years beginning on or after January 1, 2027. If you moved and missed the 2026 program, ask your assessor what current law allows for the next tax year instead of assuming the temporary classification will return.
Property Tax/Rent/Heat Rebate
The PTC Rebate is different from the homeowner exemption. It is a Colorado Department of Revenue rebate for certain low-income older adults and surviving spouses who paid property tax, rent, or heating costs.
For the 2025 claim: The official 2025 booklet says a single applicant must have total income from all sources below $19,094. Married applicants must have combined income below $25,788. The applicant must also have lived in Colorado for all of 2025, be age 65 or older by December 31, 2025 or be a qualifying surviving spouse age 58 or older, have paid qualifying property tax, rent, or heating costs, and not have been claimed as another person’s federal dependent.
Deadline: The Department of Revenue says a 2025 PTC application must be filed by December 31, 2027. That makes this the main statewide route in this guide that can still accept a new 2025 claim as of September 13, 2026.
How to start: Use Form DR 0104PTC and follow the current instructions. If identification is a problem, review the state’s alternate ID process. For general tax help, use the Department of Revenue phones. The general taxpayer-help number is 303-238-7378.
Helpful tip: PTC is based on a past calendar year’s income and expenses. Keep the exact year’s tax bill, rent records, heat costs, and income records together. Do not mix 2026 expenses into a 2025 claim.
Colorado Property Tax Deferral
The Property Tax Deferral Program is a loan, not a grant or exemption. If approved, property taxes are paid to the county and the deferred amount becomes a lien on the home. Interest accrues until the loan is repaid.
Who may qualify: The senior program is for homeowners age 65 or older who meet ownership, occupancy, prior-tax, and lien rules. An ill-health absence can fit a specific exception. The current deferral program portal says applications are filed from January 1 through April 1 and must be renewed each year to continue a prior deferral. The 2026 application window is closed.
Where to ask now: Beginning in 2026, county treasurers again handle more of the application work. For a future application, start with your county treasurer and use the state portal only when the application season is open. For state loan-account or repayment questions, the Treasury contact page lists current contact routes.
Reverse-mortgage warning: Colorado’s public guidance is inconsistent. The Treasury’s deferral information says a reverse mortgage may be compatible with future deferrals if the lender signs a subordination agreement, while the current program portal FAQ says reverse mortgages are not allowed. If you have a reverse mortgage, ask your county treasurer for a written answer before relying on this program.
How to Start Without Wasting Time
- Match the office to the problem. The assessor handles exemptions and classification. The treasurer handles the bill, payments, delinquencies, and deferral applications. The Department of Revenue handles PTC.
- Use the current-year form. Do not reuse a saved PDF just because the program name looks the same. Colorado changed property-tax procedures in 2026.
- Write down the tax year. A tax-year 2026 exemption generally appears on a bill sent in 2027. PTC claims are tied to the calendar year named on the form.
- Save proof of delivery. If you mail or upload an application, keep the confirmation, postmark, or receipt with a copy of the form.
- Ask what happens next. Ask when a decision should arrive, how you will be notified, and what appeal rights remain if you filed late.
For broader state assistance beyond property taxes, see Colorado senior benefits and the Colorado senior tax guide. For other cost-saving ideas, see Colorado senior recreation discounts.
Documents and Information to Gather
| Route | Gather | Why it matters |
|---|---|---|
| Senior exemption | Birth date, deed or title, move-in date, primary-residence history | Shows age and 10-year ownership/occupancy |
| 2026 move classification | Prior exemption address, old approval information, new deed, January 1 residence facts | Connects the prior exemption to the new primary home |
| PTC Rebate | 2025 income, rent or tax records, heat costs, residency and ID information | The rebate uses the named calendar year’s income and expenses |
| Deferral | Current tax bill, ownership proof, mortgage and lien balances, prior-tax status | The program checks ownership, taxes, and lien limits |
Local Relief Can Be Different
State programs are only part of the picture. Some counties and cities have their own relief or work programs. For example, Denver has a separate local tax-relief program for qualifying residents, with its own income, household, and funding rules. Denver residents can also use our Denver senior assistance guide to find other city-level help if property-tax relief does not cover the full need. Boulder County also operates a Senior Tax Worker Program; its 2026 application period is closed.
For help locating county and community services, dial 2-1-1 or 1-866-760-6489, or use 2-1-1 aging resources. You can also use our guide to Colorado aging agencies for local navigation.
Reality Checks
- An exemption does not erase the whole bill. It reduces the value used to calculate taxes. Your savings depend on the property’s value and local tax rates.
- Timing matters. An exemption approved for tax year 2026 normally changes the bill sent in 2027, not a bill that is already delinquent today.
- Deferral creates debt. It carries interest and a lien. Treat it as financing, not free aid.
- The move-related classification is temporary. It does not continue for property tax years beginning in 2027.
- Local programs can close or run out of funds. Confirm current status before sending documents.
Common Mistakes to Avoid
- Using the wrong 2026 deadline: The temporary moved-senior classification used March 15 and July 15 for 2026. The later July 15/August 15 alignment in SB26-046 does not take effect until 2027.
- Calling the wrong office: An assessor cannot usually fix a payment-plan problem, and the Department of Revenue does not approve the county senior exemption.
- Assuming age 65 is enough: The regular exemption also has ownership and occupancy rules.
- Calling a deferral a grant: The state deferral is a loan with interest and a lien.
- Relying on the old senior housing tax credit: Department of Revenue guidance says the Income-Qualified Senior Housing Tax Credit applied only to tax years 2022 and 2024, not 2025 or 2026. See the senior housing credit guide.
- Waiting on a delinquent bill: Call the county treasurer immediately. Interest and collection rules are separate from exemption eligibility.
Denied, Delayed, or Past a Deadline
Ask for the reason in writing. A denial based on age, ownership, occupancy, prior exemption history, or missing proof may require a different response. Do not assume every denial uses the same appeal process.
Late applications can have weaker rights. Colorado’s senior exemption law makes a late senior-exemption decision final. The 2026 moved-senior classification also made late decisions final. If you received a timely denial notice, follow the deadline on that notice rather than a general web page.
If the bill itself is the emergency, switch tracks. Call the treasurer about the amount due and payment status. Then check the PTC Rebate if you meet its rules. If housing costs are becoming unsafe, our guides to Colorado housing assistance and Colorado emergency help can help you look beyond the tax program. If paid care is part of the household-cost pressure, see paying for Colorado home care.
Phone Scripts You Can Use
County assessor — regular exemption
“Hello. I am age [age], and I have owned and lived in my home at [address] since [year]. I missed the 2026 filing period. Can you tell me what I should prepare for the next senior-exemption cycle and whether any exception applies to my situation?”
County assessor — after a move
“I previously received the Colorado Senior Property Tax Exemption at [old address] and later moved to [new address]. I understand the temporary 2026 classification is closed and ends after 2026. What property-tax relief can I legally use for my current home now?”
County treasurer — bill problem
“I am calling about the property-tax bill for [address]. What is my current balance, what deadlines or interest apply, and what payment or local assistance options are still available?”
Department of Revenue — PTC
“I want to check whether I can still file the 2025 PTC Rebate. I am age [age], and my 2025 income was about [amount]. What form and records should I use, and what should I do if I need help with identification?”
Resumen en Español
Colorado no elimina automáticamente los impuestos de propiedad cuando una persona cumple 65 años. La exención estatal para personas mayores generalmente exige tener 65 años al 1 de enero y haber sido propietario y residente de la misma vivienda principal por 10 años seguidos. Para el año fiscal 2026, la fecha normal fue el 15 de julio y la solicitud tardía podía presentarse hasta el 15 de agosto. Esas fechas ya pasaron.
Si usted se mudó después de recibir la exención, la Clasificación de Residencia Principal para Personas Mayores pudo ayudar para 2026. Para 2026, la fecha normal fue el 15 de marzo y la fecha tardía fue el 15 de julio. Ese programa temporal termina después del año fiscal 2026. Si tiene bajos ingresos, revise el Reembolso PTC para impuestos de propiedad, alquiler o calefacción. La solicitud correspondiente a 2025 puede presentarse hasta el 31 de diciembre de 2027 si cumple los requisitos.
Si no puede pagar una factura actual, llame primero al tesorero de su condado. El programa estatal de diferimiento es un préstamo con interés y un gravamen sobre la vivienda, no una exención. Para encontrar otros recursos locales, marque 2-1-1.
Frequently Asked Questions
Do seniors stop paying property tax at 65 in Colorado?
No. Age 65 alone does not erase the bill. The regular Senior Property Tax Exemption also has ownership and primary-residence rules, including a 10-year requirement for most applicants.
Are the 2026 senior exemption deadlines still open?
No. The 2026 regular deadline was July 15, and the late-filing deadline was August 15. Ask your county assessor what to prepare for the next filing cycle.
I moved. Can I still file the 2026 senior classification?
No. For tax year 2026, the regular deadline was March 15 and the late deadline was July 15. Both have passed. The temporary Qualified Senior Primary Residence Classification ends after tax year 2026.
What PTC claim can still be filed?
The Colorado Department of Revenue says the 2025 PTC Rebate application can be filed through December 31, 2027. You still must meet the 2025 income, age or surviving-spouse, residency, payment, and dependency rules.
Is Colorado property-tax deferral free assistance?
No. The deferral is a loan. Interest accrues and the deferred amount is secured by a lien on the home until it is repaid.
What should I do if I missed a deadline?
Call the county assessor for exemption questions and the county treasurer for bill or payment problems. Ask what current remedy, next filing cycle, or local program fits your situation. Do not backdate an application or assume a past deadline can be waived.
About This Guide
This guide uses official federal, state, local, and other high-trust nonprofit and community sources mentioned in the article.
Editorial note
This guide is produced based on our Editorial Standards using official and other high-trust sources, regularly updated and monitored, but not affiliated with any government agency and not a substitute for official agency guidance. Individual eligibility outcomes cannot be guaranteed.
Corrections
Please note that despite our careful verification process, errors may still occur. Email info@grantsforseniors.org with corrections and we will respond within 72 hours.
Disclaimer
This article is for informational purposes only and is not legal, financial, medical, tax, disability-rights, immigration, or government-agency advice. Program rules, policies, and availability can change. Readers should confirm current details directly with the official program before acting.
Last updated: 26 September 2026 · Next review: 26 January 2027
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