Colorado does not tax SSDI benefits at the state level

Colorado has no state income tax on Social Security Disability Insurance (SSDI) benefits. This is true whether you receive SSDI alone or combined with other income. You will not owe Colorado state tax on your SSDI payments, and you do not have to report them on a Colorado tax return.

However, your SSDI may still be taxable at the federal level, depending on your total income from all sources. Federal tax rules are separate from Colorado's rules, and both explore to you. The federal government looks at your "combined income"—a calculation that includes SSDI, wages, interest, and other money you receive—to decide whether any of your SSDI is taxable.

Colorado's lack of a state income tax simplifies your tax situation compared to residents of other states, but it does not eliminate your federal tax obligation. You will still receive a Form SSA-1099 each January showing your SSDI payments, and you may need to file a federal return even if Colorado asks for nothing.

Key Takeaways

  • Colorado does not tax SSDI benefits under state law, so you owe no Colorado state income tax on your disability payments.
  • The federal government may still tax your SSDI if your combined income exceeds certain thresholds, regardless of Colorado's rules.
  • You will receive a Form SSA-1099 each January showing your annual SSDI payments for federal tax reporting.
  • If you have other income sources—wages, pensions, interest, or rental income—those count toward your federal combined income calculation.

How federal SSDI taxation works when you live in Colorado

The federal rule for SSDI taxation uses a combined income threshold. Combined income is the sum of your adjusted gross income, nontaxable interest, and half of your SSDI benefits. If your combined income exceeds $25,000 (single filer) or $32,000 (married filing jointly), some of your SSDI becomes taxable at the federal level.

The calculation is complex because it counts half your SSDI as income while deciding whether the other half is taxable. For example, if you receive $15,000 in SSDI and $12,000 in wages, your combined income is $12,000 + $7,500 (half of SSDI) = $19,500. This is below the $25,000 threshold, so none of your SSDI is federally taxable. If you received $15,000 in SSDI and $20,000 in wages instead, your combined income would be $20,000 + $7,500 = $27,500, which exceeds $25,000, and some of your SSDI would be taxable.

Living in Colorado does not change this federal calculation. Your state has no income tax, but the IRS still applies the same combined income rules to you as it does to SSDI recipients in every other state. You report your SSDI on your federal return (Form 1040) if you are required to file, and you use the federal thresholds to determine what portion, if any, is taxable.

When you must file a federal return even though Colorado asks for nothing

Colorado does not require you to file a state return because it has no state income tax. However, the federal government has its own filing requirements that are independent of Colorado's rules. You must file a federal return if your income exceeds the federal threshold for your filing status, even if you live in Colorado and owe no state tax.

For 2024, the federal filing threshold for a single person under age 65 is $14,600 in gross income. If you are 65 or older, the threshold is $18,350. These thresholds include SSDI in your gross income calculation. If your SSDI plus any other income (wages, interest, pensions, rental income) exceeds your threshold, you must file a federal return.

Many SSDI recipients in Colorado have income below the federal threshold and do not have to file. However, if you have any earned income (wages from work) or other unearned income (interest, dividends, rental payments), you should check whether your total crosses the threshold. The IRS provides a worksheet on Form 1040 instructions to help you determine this.

What happens if your SSDI becomes federally taxable

If your combined income exceeds the federal threshold, up to 85 percent of your SSDI can become taxable income on your federal return. The exact amount depends on how far your combined income exceeds the threshold. The IRS uses a two-tier system: the first tier taxes up to 50 percent of your SSDI, and the second tier taxes up to an additional 35 percent, for a maximum of 85 percent.

When SSDI becomes taxable, you owe federal income tax on that portion. You do not owe Colorado state tax, but you will owe federal tax. The amount you owe depends on your tax bracket. If you are in the 12 percent federal tax bracket, for example, and $5,000 of your SSDI is taxable, you would owe roughly $600 in federal tax on that amount (before any credits or deductions).

You can pay this tax in two ways: by filing a return and paying the balance due, or by having the Social Security Administration withhold taxes from your monthly SSDI payment. If you expect to owe tax, you can complete Form W-4V and send it to your local Social Security office to request withholding. This prevents a large bill when you file your return.

Other Colorado tax situations that do not affect SSDI

Colorado has no sales tax on groceries, but it does have a 4 percent state sales tax on most other purchases. This sales tax does not affect your SSDI or your federal tax obligation—it is a separate tax you pay when you buy goods. Your SSDI is not reduced or taxed because of sales tax you pay.

Colorado also does not tax retirement income like pensions or distributions from retirement accounts at the state level. If you receive a pension in addition to SSDI, you owe no Colorado state tax on either one. However, pensions and retirement account distributions do count toward your federal combined income calculation, which may make some of your SSDI federally taxable.

Property tax in Colorado is set by county and local governments, not the state. If you own a home, you will owe property tax to your county, but this does not affect your SSDI or your income tax obligation. Some Colorado counties offer property tax exemptions or deferrals for people over 65 or with disabilities, but these are separate programs and do not reduce your SSDI.

How to report SSDI on your federal return

Each January, the Social Security Administration sends you a Form SSA-1099 showing your total SSDI payments for the previous year. You use this form to report your SSDI on your federal return. The form shows the gross amount you received, not any amount withheld for taxes or Medicare premiums.

On your federal Form 1040, you enter your SSDI in the "Social Security benefits" line. If you are filing electronically, your tax software will ask you to enter this amount and will automatically calculate whether any of it is taxable based on your other income. If you are filing by hand, you use the worksheet in the Form 1040 instructions to determine the taxable portion.

You do not file anything with Colorado. Because Colorado has no income tax, there is no state return to complete. You only file with the federal government. If you use a tax preparer or software, make sure they know you live in Colorado so they do not accidentally prepare a state return you do not need.

Frequently Asked Questions

Do I have to pay Colorado income tax on my SSDI?

No. Colorado has no state income tax, so you do not owe state tax on SSDI or any other income. You may owe federal income tax on your SSDI if your combined income exceeds the federal threshold, but Colorado itself collects nothing.

What if I work part-time and receive SSDI at the same time?

Your wages plus your SSDI count toward your federal combined income. If the total exceeds $25,000 (single) or $32,000 (married filing jointly), some of your SSDI becomes federally taxable. Colorado does not tax either your wages or your SSDI, but the federal government will tax the portion of SSDI that exceeds the threshold.

Do I need to file a Colorado tax return?

No. Colorado does not require income tax returns because it has no state income tax. You only file a federal return if your income exceeds the federal threshold for your age and filing status. Living in Colorado simplifies this because you have only one return to worry about.

If I have my SSDI taxes withheld, do I still owe Colorado anything?

No. Withholding federal taxes from your SSDI does not create a Colorado tax obligation. You owe Colorado nothing on SSDI regardless of withholding. Withholding only affects your federal return—it reduces the amount you owe the IRS when you file.

Does a pension I receive count toward my SSDI tax calculation?

Yes, at the federal level. Pension income counts toward your federal combined income, which determines whether your SSDI is federally taxable. Colorado does not tax pensions, but the federal government includes them in the calculation. You do not owe Colorado state tax on either your pension or your SSDI.