Retirement taxes by state
How Colorado taxes retirement income in 2026
Colorado has a flat 4.4% income tax. Here's how Colorado treats Social Security, retirement-account withdrawals, pensions and Roth conversions in 2026 — and what that means in dollars: a retired couple, both 67, with $98,000 of income pays nothing in Colorado income tax.
Updated October 2026 · 2026 tax year
Colorado at a glance
- Flat 4.4% income tax.
- Social Security is exempt from age 65; exempt from age 55 with income up to $75,000 ($95,000 joint).
- Retirement income (pensions, 401(k)s, IRAs, Roth conversions): up to $20,000 per person excluded at ages 55–64.
- Retirement income (pensions, 401(k)s, IRAs, Roth conversions): up to $24,000 per person excluded from age 65.
Colorado retirement tax questions
Does Colorado tax Social Security?
Social Security is exempt from age 65; exempt from age 55 with income up to $75,000 ($95,000 joint).
Does Colorado tax 401(k) and IRA withdrawals?
Partly. Retirement income (pensions, 401(k)s, IRAs, Roth conversions): up to $20,000 per person excluded at ages 55–64. Retirement income (pensions, 401(k)s, IRAs, Roth conversions): up to $24,000 per person excluded from age 65.
Does Colorado tax pensions?
Partly. Retirement income (pensions, 401(k)s, IRAs, Roth conversions): up to $20,000 per person excluded at ages 55–64. Retirement income (pensions, 401(k)s, IRAs, Roth conversions): up to $24,000 per person excluded from age 65.
Does Colorado tax Roth conversions?
Partly. Retirement income (pensions, 401(k)s, IRAs, Roth conversions): up to $20,000 per person excluded at ages 55–64. Retirement income (pensions, 401(k)s, IRAs, Roth conversions): up to $24,000 per person excluded from age 65. Anything above that is taxed like other income.
What is Colorado's income tax rate in 2026?
Colorado has a flat 4.4% income tax.
What retirees actually pay in Colorado: three examples
Calculated with Retirology's tax engine under 2026 law, using each state's standard deduction, its retirement breaks and the 2026 federal rules for how much Social Security is taxable. That couple would owe nothing in Colorado — one of 24 states (counting DC) where they'd pay $0.
| Household | Total income | Colorado tax | Share |
|---|---|---|---|
| Retired couple, both 67 $48,000 of Social Security, $40,000 drawn from IRAs and 401(k)s, and $10,000 of qualified dividends | $98,000 | $0 | 0.0% |
| Single retiree, 70 $30,000 of Social Security, a $25,000 pension and $15,000 of IRA withdrawals | $70,000 | $0 | 0.0% |
| Early-retired couple, both 56, converting to Roth A $60,000 Roth conversion and $20,000 of long-term gains and qualified dividends, living on savings | $80,000 | $343 | 0.4% |
State income tax only — before local taxes, property tax relief and credits not listed above. Federal income tax is extra and the same in every state.
Details and limits
Starts from federal taxable income. Social Security is exempt at 65+ (and 55-64 under the income limits); the pension/annuity subtraction is $20k (55-64) / $24k (65+) per person.
Sources
Rates and rules for the 2026 tax year, from Retirology's state tax data (reviewed October 2026):
This page explains state tax rules in general terms. It isn't tax advice — check your state's official instructions or a tax professional for your situation.