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Last updated: 27 May 2026
Bottom line: Colorado taxes some retirement income, but many seniors can lower the bill with state subtractions, rebates, and county property-tax programs. Start by separating your problem into three buckets: state income tax, county property tax, and low-income housing cost help. Each bucket uses different forms and offices.
Emergency help now
- State return, refund, or tax notice: call Colorado Taxpayer Services at 303-238-7378. You can also use Revenue Online for filing, account access, refunds, and secure messages.
- Property-tax bill or deadline: call your county assessor or treasurer. Use Colorado’s local office finder if you do not know which office handles your home.
- Free filing help: use Colorado community tax help, Tax-Aide, or the IRS VITA/TCE locator.
- Possible rebate for rent, heat, or property tax: check the Colorado PTC Rebate before you assume there is no help.
Quick-help box
- Fastest state filing route: Revenue Online, tax software accepted by Colorado, or a free tax site.
- Fastest senior property-tax route: call your county assessor before the July 15 senior exemption deadline.
- Fastest move-related property-tax route: ask the county assessor about the Senior Primary Residence Classification.
- Fastest cash-flow route: ask the county treasurer about the state deferral loan before the April 1 window in years when you plan to apply.
- Fastest low-income route: check the PTC Rebate and bring rent, heat, property-tax, and income records.
Contents
- Emergency help now
- Quick Colorado tax map
- Does Colorado tax Social Security?
- How Colorado taxes retirement income
- Senior tax breaks and credits
- Property-tax relief and rebates
- Free tax help and access
- Start without wasting time
- Documents to gather
- Local resources and phone scripts
- If denied, delayed, or overwhelmed
Quick Colorado tax map
Colorado’s 2025 income tax rate is 4.4%. The return starts with federal taxable income. That means Colorado usually looks at the taxable part of your Social Security, pension, IRA, annuity, or 401(k), not always the full amount you received.
Colorado also has local sales taxes. The state sales tax rate is 2.9%, but local rates can add more, and some home-rule cities collect their own tax under different local rules. Check the state sales tax guide if sales or use tax is part of your issue.
For broad non-tax help, the Colorado benefits guide can help you compare food, utility, housing, and health programs. This page stays focused on tax questions.
| If your problem is | Start here | Ask this |
|---|---|---|
| Social Security or pension tax | Colorado income-tax rules | “Which taxable amount from my federal return should I use?” |
| IRA or 401(k) withdrawals | DR 0104 and DR 0104AD | “Do I qualify for the age-based subtraction?” |
| Refund delay or state letter | Revenue Online or Taxpayer Services | “Has Colorado received my return, and do you need anything else?” |
| Senior homeowner exemption | County assessor | “Do I meet the age and 10-year home rule?” |
| Cannot pay property taxes | County treasurer | “Is the state deferral loan open for me?” |
| Rent, heat, or property-tax rebate | PTC Rebate | “Should I file DR 0104PTC?” |
Does Colorado tax Social Security?
For many seniors, the answer is no or only partly. Colorado’s retirement-income rules say taxpayers who are 65 or older at the end of the tax year may subtract the full amount of Social Security that was included in federal taxable income.
The key phrase is included in federal taxable income. Use line 6b from the federal return, not the full annual benefit on line 6a or the full SSA-1099. If none of your Social Security was taxable on the federal return, there may be nothing to subtract on the Colorado return.
For tax years starting in 2025, people age 55 to 64 may also subtract all federally taxable Social Security if adjusted gross income is not more than $75,000 for single filers or $95,000 for joint filers. If income is above those limits, the cap stays at $20,000.
Joint returns need extra care. If both spouses received Social Security, Colorado says the taxable Social Security must be split based on each spouse’s share of total benefits. This matters when one spouse is 65 or older and the other is not.
Reality check: the Social Security subtraction can reduce the amount left for other pension and annuity subtraction. Do not assume you can subtract all Social Security and then still use the full pension subtraction without doing the worksheet.
For a broader federal and state overview, see our Social Security tax guide before you file.
How Colorado taxes retirement income
Colorado does not give every retiree a blanket exemption for pension, IRA, or 401(k) income. Many taxable retirement payments may qualify for a subtraction, but the subtraction has limits.
In general, Colorado allows a pension and annuity subtraction of up to $20,000 for taxpayers age 55 to 64 and up to $24,000 for taxpayers age 65 or older. The subtraction applies to retirement income that is included in federal taxable income.
For traditional IRA, SEP IRA, and SIMPLE IRA distributions, Colorado uses the taxable amount from federal line 4b, not the gross amount from line 4a. Many 401(k), 403(b), and 457 withdrawals are handled in a similar taxable-income way.
| Income type | Colorado treatment | Common mistake |
|---|---|---|
| Social Security | Many people 65+ can subtract all federally taxable Social Security. | Using the full SSA-1099 instead of federal line 6b. |
| Pensions and annuities | May qualify for the age-based subtraction. | Thinking all pension income is tax-free. |
| Traditional IRA | Taxable amount may qualify for subtraction. | Using gross IRA distributions instead of taxable IRA income. |
| 401(k), 403(b), 457 | Taxable withdrawals may qualify under pension rules. | Assuming all workplace plan money is exempt. |
| Qualified Roth payments | Usually not Colorado taxable if not federally taxable. | Ignoring a partly taxable Roth withdrawal. |
| Military retirement | Special rules can apply, especially under age 55. | Missing a separate military subtraction. |
If you are a retired servicemember or helping an older veteran household, our veteran benefits guide may help you find state and local veteran offices.
Senior tax breaks and credits
Long-term care insurance credit
Colorado has a long-term care credit for some residents who buy or pay premiums for a qualifying policy. The credit is generally 25% of the amount paid, up to $150 per policy.
The credit has federal taxable income limits. Colorado lists a $50,000 limit for single filers and for some joint filers claiming one policy. It lists a $100,000 limit for certain joint filers claiming two policies or a joint policy covering both spouses separately.
This credit is nonrefundable. If your Colorado income tax is already zero, it will not create an extra refund.
Senior housing income-tax credit
Do not count on the senior housing income-tax credit for a 2025 Colorado return filed in 2026. Colorado’s housing credit guidance says the credit was allowed only for tax years 2022 and 2024 and not for other years.
If you think you missed the 2024 credit, ask a free tax site or tax professional whether an amended 2024 return is worth checking. Do not place that old credit on a 2025 return unless the official form allows it.
TABOR refund
Some full-year Colorado residents may still want to file a state return even if their tax is small. The 2025 PTC page says eligible PTC filers may receive up to a $38 TABOR amount, or $19 for single filers, when the rules are met. Regular income-tax filers should check the current Colorado booklet or filing software for the sales-tax refund rules that apply to their return.
Property-tax relief and rebates
Property-tax help in Colorado usually starts outside the state income-tax return. The county assessor handles exemption and classification questions. The county treasurer handles billing and deferral entry points. The Department of Revenue handles the PTC Rebate.
For a deeper walk-through, use our property-tax relief guide. You can also use our property-tax terms page if you are unsure about the difference between an exemption, rebate, deferral, and freeze.
Senior Property Tax Exemption
Colorado’s senior exemption page explains the statewide senior homeowner exemption. When funded, it exempts 50% of the first $200,000 of actual value of a qualifying primary home.
For the 2026 tax year, a regular senior applicant generally must be at least 65 on January 1, 2026, and must have owned and occupied the same primary home for at least 10 straight years before January 1, 2026. The normal filing deadline is July 15 through the county assessor.
Reality check: the rule can be harder after a move, trust transfer, illness, disaster, or death of a spouse. Ask the assessor whether you need the short form, long form, or a surviving-spouse route.
Senior Primary Residence Classification after a move
The move classification page covers the temporary Senior Primary Residence Classification for some seniors who previously received the senior exemption and then moved. It is available for tax years 2025 and 2026.
This is important for downsizing seniors. The main deadline is March 15, and late filing may be accepted until July 15 in many counties, but late filers can lose appeal rights if denied. Call the assessor before you assume you lost all help.
Property Tax Deferral Program
The Colorado deferral program is a loan, not an exemption. The state pays approved property taxes to the county, and the amount becomes a lien on the home until it is repaid.
Senior homeowners generally must be 65 or older and meet the program’s ownership, lien, mortgage, insurance, and prior-tax rules. The regular application window is January 1 through April 1. Interest begins after the state pays the county.
Reality check: a deferral can help cash flow, but it adds debt to the property. Ask how it affects heirs, refinancing, selling, reverse mortgages, and any other liens.
PTC Rebate for renters and low-income homeowners
The PTC Rebate can help with property tax, rent, or heat costs. For 2025 claims filed in 2026 or 2027, Colorado says a person may qualify if they lived in Colorado all year, were 65 or older by December 31, 2025, or were a surviving spouse age 58 or older, met income limits, paid property tax, rent, or heat, and were not claimed as someone else’s dependent.
The 2025 income limits are less than $19,094 for a single filer and less than $25,788 for married filing jointly. The maximum rebate is up to $1,178. The 2025 PTC deadline is December 31, 2027.
Reality check: the address on the PTC application must match the address on the Colorado driver license or ID. A mismatch can delay the rebate. Spanish forms and an alternate identification route are available for some residents without a Social Security number or Individual Taxpayer Identification Number.
Free tax help and access
Free help is worth using when a return includes Social Security, retirement withdrawals, PTC, a move, or a state notice. A small error can cost more time than a short appointment.
The IRS says Volunteer Income Tax Assistance usually helps people who make $69,000 or less, people with disabilities, and limited-English taxpayers. Tax Counseling for the Elderly focuses on adults 60 and older and retirement-related tax questions.
Colorado service centers are listed on the state service centers page. Denver requires an appointment. Other centers may allow walk-ins, but appointments are still smart. The Department of Revenue also lists ADA accommodations and Relay Colorado access.
For local help outside tax offices, try 211 Colorado or Get Ahead Colorado. If you need aging-network help, our aging office guide can help you find the right regional office.
How to start without wasting time
- Name the problem first. Is it income tax, property tax, a rebate, or a notice?
- Use federal taxable amounts. For Social Security, start with federal line 6b. For many IRA withdrawals, start with the taxable amount.
- Do not wait on county deadlines. Property-tax deadlines do not move just because your income-tax return is not done.
- Call the right office. The assessor handles exemption and classification. The treasurer handles bills and deferrals. The Department of Revenue handles state returns and PTC.
- Use free help early. If you are stuck for more than 20 minutes, book help or call a tax site.
| Need | Best first step | Reality check |
|---|---|---|
| Only Social Security | Check federal taxable amount and Colorado filing need. | You may still file for a refund or rebate. |
| Pension plus IRA | Review the age-based subtraction. | Gross distributions can overstate Colorado tax. |
| Longtime homeowner | Call the county assessor. | Ten-year owner-occupant rules matter. |
| Renter with low income | Check PTC Rebate. | Rent and heat proof may be needed. |
| Moved after exemption | Ask about move classification. | Deadlines are early. |
| Tax notice | Use Revenue Online or call CDOR. | Do not ignore identity letters. |
Documents to gather
Keep papers in one folder before calling or filing. Our documents checklist can help if you are helping a parent or rebuilding missing records.
- Social Security statement, usually SSA-1099
- Pension, annuity, IRA, and 401(k) forms, usually 1099-R
- Federal return and Colorado return from last year, if available
- W-2, 1099-INT, 1099-DIV, 1099-G, and other income slips
- Property-tax bill, mortgage statement, or deed information
- Rent receipts, lease, landlord name, and heat bills for PTC
- Colorado driver license or ID and current mailing address
- Bank routing and account number for direct deposit
- State tax letters, refund letters, or identity checks
- Proof of move, sale, or closing papers if you changed homes
- Power of attorney or written authorization if helping someone else
If you also need help with benefit applications, the Colorado PEAK guide can help you understand the state benefits portal.
Local resources and phone scripts
Colorado tax help is split across state and county systems. Seniors in Denver can also use our Denver senior guide for local benefit routes. If housing costs are part of the problem, the housing help guide may help with non-tax options.
- Colorado Taxpayer Services: 303-238-7378, Monday through Friday, 8:00 a.m. to 4:30 p.m. Mountain Time, except state holidays.
- Division of Property Taxation: 303-864-7777 for general property-tax program questions.
- AARP Tax-Aide: 1-888-227-7669 for free tax-help site information.
- IRS VITA/TCE: 1-800-906-9887 for free tax-prep site help.
- 211 Colorado: dial 211 for local nonprofit and tax-help referrals.
Phone scripts
Colorado Department of Revenue:
“I am a Colorado senior filing my 2025 return. I need to know whether I should file DR 0104, DR 0104PTC, or both, and whether Colorado needs any attachments from me.”
County assessor:
“I am calling about senior property-tax relief. I need to know if I qualify for the senior exemption or the Senior Primary Residence Classification and which deadline applies to me.”
County treasurer:
“I may have trouble paying my property taxes. Can you tell me whether the state deferral program is available for my home and what documents I need before the application window closes?”
Free tax site:
“I am over 60 and need help with a Colorado return that includes Social Security, retirement withdrawals, and maybe the PTC Rebate. Do you handle Colorado forms?”
If denied, delayed, or overwhelmed
- If a refund is delayed: check Revenue Online before calling. If you received a letter, read the letter first because it may ask for identity proof or missing forms.
- If PTC is delayed: check the address match, direct-deposit details, both pages of the form, income records, and landlord or heat proof.
- If a property exemption is denied: ask the county assessor for the denial reason, appeal deadline, and whether the long form or move classification fits your case.
- If a deferral is not right: ask about payment plans, county billing options, nonprofit help, or legal advice before taxes become delinquent.
- If disability access is the barrier: ask for accommodations early. Our disability help guide can also help with local disability resources.
Common mistakes to avoid
- Assuming Colorado never taxes retirement income.
- Using the full Social Security benefit instead of the federally taxable amount.
- Using gross IRA distributions instead of taxable IRA income.
- Claiming the senior housing credit on a 2025 return when the state does not allow it for that year.
- Missing the July 15 senior property-tax exemption deadline.
- Waiting too long after a move to ask about Senior Primary Residence Classification.
- Thinking a property-tax deferral is free money. It is a loan.
- Skipping a Colorado return when a rebate or refund may still be available.
- Using the wrong PTC year form or leaving out the second page.
Spanish summary
Colorado puede cobrar impuestos sobre algunos ingresos de jubilación, pero muchos adultos mayores pueden reducir la cantidad. Revise primero la parte tributable del Seguro Social en su declaración federal, no el beneficio total. Si tiene pensión, IRA o 401(k), pregunte si califica para la resta por edad.
Si el problema es la vivienda, llame al assessor del condado para la exención de impuestos sobre la propiedad o la clasificación para personas mayores que se mudaron. Si tiene bajos ingresos y pagó renta, calefacción o impuesto sobre la propiedad, revise el reembolso PTC. Si necesita ayuda gratis, llame al Departamento de Ingresos de Colorado al 303-238-7378, use Tax-Aide, VITA/TCE o llame al 211.
Frequently asked questions
Does Colorado tax Social Security in 2026?
For the 2025 return filed in 2026, many seniors can subtract all Social Security that was taxable on the federal return. People age 65 or older can subtract the full federally taxable amount. Some people age 55 to 64 can also subtract the full federally taxable amount if they meet Colorado’s income limits.
Does Colorado tax IRA and 401(k) withdrawals?
Often yes, unless a subtraction applies. Colorado generally starts with the taxable amount from the federal return. Many seniors can use the age-based pension and annuity subtraction, but it has limits.
What is the PTC Rebate?
The PTC Rebate is Colorado’s Property Tax, Rent, and Heat Rebate. It can help eligible low-income seniors and some surviving spouses with property tax, rent, or heat costs. Renters can qualify.
Can I claim the senior housing credit on my 2025 return?
No, not under Colorado’s current guidance. The income-qualified senior housing tax credit was allowed only for tax years 2022 and 2024.
Who handles the Colorado senior property-tax exemption?
Your county assessor handles the senior property-tax exemption. The regular deadline is July 15. The state income-tax return is not the place to apply for this county property-tax program.
What if I moved after getting the senior exemption?
Ask the county assessor about the Senior Primary Residence Classification. It is a temporary program for tax years 2025 and 2026 for some seniors who previously received the senior exemption and then moved.
Where can seniors get free tax help in Colorado?
Start with Colorado community tax help, AARP Tax-Aide, IRS VITA/TCE, 211 Colorado, or a Colorado taxpayer service center. Bring income forms, ID, prior returns, and any state letters.
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.
Verification: Last verified 27 May 2026, next review 27 August 2026.
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: 27 May 2026
Next review: 27 August 2026
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