Does Colorado Tax IRA Distributions? Age Subtraction and Limits

Yes, Colorado does tax IRA distributions, but not all of them and not always at the full rate. Traditional IRA withdrawals that are taxable federally flow into Colorado’s tax base and face the state’s flat 4.40% income tax rate for the 2026 tax year. An age-based retirement income subtraction can shelter up to $24,000 if you’re 65 or older, or up to $20,000 if you’re between 55 and 64. Qualified Roth distributions escape state tax entirely because they never appear in your federal taxable income.¹

Traditional and Roth IRAs Are Treated Differently

Colorado starts its tax calculation from your federal taxable income (line 15 of Form 1040), so whatever the IRS counts, Colorado counts.¹

Traditional IRA distributions from pre-tax contributions and earnings are fully included in federal taxable income and land in Colorado’s starting figure. They face the 4.40% state rate unless the retirement income subtraction reduces them.

Qualified Roth IRA distributions are tax-free federally and never reach the Colorado return.² If a Roth distribution is non-qualified, the earnings portion becomes federally taxable and Colorado will tax it too, though the age-based subtraction can still apply.

The Age-Based Retirement Income Subtraction

Colorado allows a subtraction that can wipe out state tax on IRA distributions for many retirees. Your age on December 31 of the tax year sets the limit.³

Age 65 or older: up to $24,000 of qualifying retirement income.
Age 55 to 64: up to $20,000 of qualifying retirement income.
Under 55: no subtraction, unless the distributions are a death benefit from an inherited account.

The cap applies to your combined qualifying retirement income (IRA distributions, pensions, annuities, and Social Security), not to each source separately. On a joint return, each spouse claims the subtraction based on their own age and their own income; you can’t shift one spouse’s IRA distributions onto the other’s cap.⁴

Social Security Eats Into the Cap

This is where retirees often miscalculate. Social Security benefits included in your federal taxable income share the same subtraction pool as IRA and pension income. Every dollar you subtract for Social Security reduces what remains for IRA distributions.³

Starting with the 2022 tax year, taxpayers 65 and older can subtract the full amount of Social Security benefits in their federal taxable income, even beyond $24,000. For the 55-to-64 group, tax years 2025 and later also allow a full Social Security subtraction, but only if federal adjusted gross income doesn’t exceed $75,000 for single filers or $95,000 for joint filers. Above those thresholds, the Social Security subtraction stays capped at $20,000 for that age group.³

What that means in practice: a 67-year-old who subtracts $18,000 in Social Security has just $6,000 of the $24,000 cap left for IRA income. If Social Security alone runs to $30,000, none of the cap remains and every dollar of the IRA withdrawal is taxed at 4.40%.

A Worked Example

You’re 66, single, with $12,000 of Social Security in your federal taxable income and a $25,000 traditional IRA withdrawal. Subtract $12,000 for Social Security first. That leaves $12,000 of your $24,000 cap for the IRA. Of the $25,000 distribution, $12,000 is sheltered and $13,000 stays taxable. Colorado tax on the IRA portion: $572.

Early Withdrawals Before 59½ Don’t Qualify

Take a distribution before 59½ that counts as a premature distribution federally, meaning it triggers the 10% early withdrawal penalty under IRC Section 72(t), and Colorado’s subtraction is off the table.⁵ That’s true even if you’re between 55 and 59½ and would otherwise clear the age threshold.

If a federal exception applies (disability, substantially equal periodic payments, and others listed in the IRS Form 5329 instructions), the distribution isn’t premature federally and can qualify for the Colorado subtraction.³

Inherited IRAs

Inheriting an IRA doesn’t change the basic rules once you’re 55 or older. Your own age sets your cap.³

The exception matters for younger beneficiaries. Taxpayers under 55 normally get no subtraction at all, but if you’re receiving distributions as a death benefit because the account holder died, you can subtract up to $20,000 regardless of your age.⁴ That helps younger spouses, adult children, and other beneficiaries facing mandatory distributions under the federal 10-year rule.

Qualified Charitable Distributions

A qualified charitable distribution moves up to $105,000 per year (for 2024, indexed after) directly from your IRA to a qualifying charity, and the amount stays out of your federal taxable income entirely. Because Colorado starts from that federal figure, a QCD never enters the state tax base either. You can’t also count the same amount toward Colorado’s charitable contribution subtraction, so there’s no stacking.⁶ For charitably inclined retirees who would otherwise owe Colorado tax on IRA withdrawals, this is one of the cleanest ways out.

Part-Year Residents and Nonresidents

Only IRA distributions you received while a Colorado resident count as Colorado income. Retirement income is not treated as Colorado-source income for nonresidents under federal law (4 U.S.C. § 114), so a distribution taken after you’ve moved out of state isn’t taxable by Colorado.⁷ Part-year residents allocate income on Form DR 0104PN, and the retirement subtraction still applies to the Colorado portion within the age-based cap.

Claiming the Subtraction on Your Return

Work the federal return first. The taxable IRA amount on line 4b of Form 1040 (not the gross figure on line 4a) is what carries into Colorado through federal taxable income on line 15, which becomes line 1 of Form DR 0104.⁴

To take the subtraction, file the Subtractions from Income Schedule, Form DR 0104AD. Social Security goes on line 3 (primary taxpayer), and pension, annuity, and IRA income goes on line 4, or line 6 for a spouse. The total of lines 3 and 4 cannot exceed your age-based cap, so whatever you claim for Social Security shrinks the amount available on the IRA line. Attach the DR 0104AD to your DR 0104 and include copies of every 1099-R and SSA-1099.⁴

1
Department of Revenue – Taxation. Individual Income Tax Guide
2
Internal Revenue Service. Roth IRAs
3
Department of Revenue – Taxation. Income Tax Topics: Social Security, Pensions and Annuities
4
Colorado Department of Revenue. 2024 Book 104, Colorado Individual Income Tax Filing Guide
5
Legal Information Institute (LII) at Cornell Law School. Colorado Code 39-22-104(4)(f) – Pension and Annuity Subtraction
6
Department of Revenue – Taxation. Income Tax Topics: Charitable Contributions
7
Colorado Department of Revenue. Income Tax Topics: Part-Year Residents and Nonresidents