Does Colorado Tax Social Security?
Short answer: yes, but many retirees pay nothing
Colorado taxes Social Security benefits, but the majority of retirees end up paying nothing. Retirees age 65 and older can deduct all of their federally taxable Social Security from their Colorado taxable income — no income limit applies at that age.
For retirees age 55 to 64, the deduction is full below $75,000 of adjusted gross income for single filers or $95,000 for joint filers. Above those thresholds, the deduction is capped at the lesser of $20,000 or your federally taxable retirement income.
- Whether you owe depends on your adjusted gross income and filing status, not just on living in Colorado
- Most low- and middle-income retirees in Colorado end up owing little or nothing on their Social Security specifically
- These thresholds are current for 2026 and are set by Colorado law, which can change — verify before relying on any specific number, including this one
Other retirement income isn’t exempt
Social Security is partly exempt for many filers, but other retirement income generally isn’t. Pensions, 401(k) and IRA distributions, and investment income are subject to Colorado’s state income tax like any other income.
Colorado’s income tax rate
Colorado has a flat 4.4% individual income tax rate. Because state tax rates and brackets change from year to year, check the Tax Foundation’s current state income tax data before relying on any specific number, including this one.
Does Colorado tax Social Security benefits?
What is Colorado's income tax rate?
Colorado has a flat 4.4% individual income tax rate, which is the rate that applies once your Social Security income crosses the exemption thresholds described above.
Is other retirement income like pensions and 401(k) withdrawals taxed in Colorado?
Generally yes — Colorado taxes pensions, 401(k) and IRA distributions, and investment income at its regular state income tax rate, separately from the Social Security-specific rules above.
Where can I verify current Colorado tax rules?
The figures above are sourced from Kiplinger’s state-by-state Social Security tax tracker, current as of 2026. For income tax rates generally, the Tax Foundation publishes current state-by-state data. Thresholds and rates change from year to year, so confirm current numbers before making a decision based on them.
Beyond taxes
Taxes are one factor in a retirement location decision, not the whole picture. Healthcare access, cost of living, climate, and proximity to family typically matter as much or more. If Colorado otherwise fits what you’re looking for, its tax treatment of Social Security is worth weighing carefully alongside its income thresholds — just don’t let it be the only factor you weigh, and talk to a tax advisor about how your specific retirement income will be taxed.
This article is for educational purposes only and isn't legal, financial, or tax advice. See our Disclaimer for details.
