Whether You Must File Taxes on Disability Income

Whether you file taxes depends on how much income you have and what type of disability benefit you receive. Social Security Disability Insurance (SSDI) is taxable income, but Supplemental Security Income (SSI) is not. The IRS requires you to file a tax return if your total income exceeds a threshold that changes each year based on your age and filing status. For 2024, a single person under 65 with only SSDI income must file if they earned more than $14,600 in combined income (SSDI plus any wages or other earnings).

The reason SSDI counts as taxable income while SSI does not comes down to how the programs are funded. SSDI is funded by payroll taxes you and your employer paid into Social Security during your working years—it is treated like a pension or retirement benefit. SSI is a needs-based welfare program funded from general tax revenue, so it carries no tax obligation. If you receive both SSDI and SSI, only the SSDI portion is taxable.

Many people on SSDI owe no tax even though they must file, because the standard deduction is high enough to shelter most or all of their benefit. Others discover they owe money only after filing. The key is knowing your total income—SSDI plus wages, interest, dividends, or other sources—and comparing it to the filing threshold for your situation.

Key Takeaways

  • SSDI is taxable income for federal tax purposes; SSI is not taxable at all.
  • You must file a tax return if your total income (SSDI plus any other earnings) exceeds the annual threshold, which is $14,600 for a single person under 65 in 2024.
  • Up to 85 percent of your SSDI benefit can be subject to tax if your combined income is high enough, but many SSDI recipients owe no tax because the standard deduction covers their benefit.
  • The IRS uses a formula called "combined income" that includes half your SSDI benefit plus all other income to determine how much of your benefit is taxable.
  • If you work while on SSDI, you may have both SSDI income and wage income to report, which can push you over the filing threshold.

How SSDI Becomes Taxable Income

The IRS does not tax your entire SSDI benefit at your marginal rate. Instead, it uses a two-tier formula based on your combined income. Combined income is calculated as your adjusted gross income plus nontaxable interest plus half of your SSDI benefit. If your combined income is below $25,000 (or $32,000 if you file jointly), none of your SSDI is taxable. If it is between $25,000 and $34,000 (or $32,000 to $44,000 jointly), up to 50 percent of your benefit is taxable. If it exceeds $34,000 (or $44,000 jointly), up to 85 percent is taxable.

This formula means that someone receiving only SSDI and no other income will almost never owe tax, because their combined income is zero. But if you have a part-time job, rental income, interest from savings, or a pension, those dollars push your combined income higher and trigger taxation of your SSDI. For example, if you receive $1,500 per month in SSDI ($18,000 per year) and earn $10,000 in wages, your combined income is $10,000 plus half of $18,000, or $19,000. Since that is below $25,000, you owe no tax on the SSDI itself—but you still owe tax on the $10,000 in wages.

The standard deduction for 2024 is $14,600 for a single person under 65. This means that even if some of your SSDI becomes taxable, you may owe no tax because the standard deduction shelters the first $14,600 of your total income. Only income above the standard deduction is taxed.

When You Must File Even If You Owe No Tax

The IRS requires you to file a return if your gross income exceeds the standard deduction for your age and filing status, regardless of whether you will owe tax. For someone under 65 filing single in 2024, that threshold is $14,600. If you receive $18,000 in SSDI and have no other income, your gross income is $18,000, which exceeds $14,600, so you must file—even though the standard deduction will shelter all of it and you will owe no tax.

Filing when you owe no tax may seem pointless, but it serves several purposes. It establishes an official record with the IRS that you reported your income. It allows you to claim refundable tax credits like the Earned Income Tax Credit (EITC) if you also worked and are may have access to to it. It can protect you if the IRS later audits your return, because you will have documentation showing you reported your benefit correctly. And it may be required to maintain your may be able to access for other programs, such as Medicaid or housing information, that ask for a copy of your tax return.

If you are unsure whether your income exceeds the filing threshold, it is safer to file. The cost of filing is low—many tax preparation services are free for people with low income—and the risk of not filing when you should is higher.

SSDI, Work Incentives, and Tax Filing

If you work while receiving SSDI, your tax situation becomes more complex. SSDI has work incentives designed to let you test your ability to work without when ready losing your benefit. The most common is the Trial Work Period, which lets you work and earn any amount for nine months without affecting your SSDI payment. After the Trial Work Period ends, Social Security applies an earnings test: if you earn more than $1,550 per month (in 2024), you lose one dollar of SSDI for every two dollars you earn above that threshold.

For tax purposes, your wages are always taxable income, separate from whether Social Security reduces your SSDI payment. If you earn $15,000 in wages and receive $18,000 in SSDI, your total income is $33,000, and you must file a tax return. Your combined income for the SSDI taxation formula is $15,000 plus half of $18,000, or $24,000. Since that is below $25,000, none of your SSDI is taxable, but all $15,000 of your wages are taxable (minus the standard deduction).

Some people on SSDI also use the Plan to Achieve Self-Support (PASS), which lets you set aside income and resources for a work goal without affecting your SSI or SSDI. PASS does not change your tax filing obligation—you still report all income to the IRS—but it does protect some of your earnings from affecting your Social Security benefit.

What to Report and What Documents You Need

Social Security sends you a Form SSA-1099 each January showing how much SSDI you received in the previous year. This is your official record of your benefit for tax purposes. You report this amount on your tax return, usually on Form 1040 or Form 1040-SR (for people 65 and older). You do not need to attach the SSA-1099 to your return, but you should keep it for your records.

If you also have wages, you will receive a Form W-2 from your employer showing your earnings and taxes withheld. If you have self-employment income, you report it on Schedule C. If you have interest or dividends, you report those on Schedule B. All of these income sources count toward your combined income for the SSDI taxation formula.

When you file, you may need to use Form 1040 Schedule 1 to calculate how much of your SSDI is taxable. This is where the combined income formula is applied. Many tax software programs and tax preparers handle this calculation automatically, but if you are filing by hand, you will need to work through the IRS worksheet in the Form 1040 instructions.

State Taxes and SSDI

Most states do not tax SSDI benefits, but a few do. Colorado, Connecticut, Kansas, Minnesota, Missouri, Montana, Nebraska, New Mexico, Rhode Island, Utah, and Vermont tax SSDI as income for state tax purposes, even though the federal government does not tax it fully. The amount of state tax you owe depends on your state's tax brackets and whether your state offers any deductions or credits for disability income.

If you live in one of these states, you may owe state tax even if you owe no federal tax. For example, Colorado taxes SSDI as regular income, so if you receive $18,000 in SSDI and have no other income, you would owe no federal tax but would owe Colorado state tax on the full $18,000 (minus Colorado's standard deduction). You should check your state's tax agency website or contact a tax preparer familiar with your state's rules.

SSI is not taxed by any state, so if you receive only SSI, you have no state tax obligation regardless of where you live.

Free Tax Preparation and Filing Options

If your income is low, you may be able to file your taxes for free. The IRS Volunteer Income Tax information (VITA) program offers free tax preparation at libraries, community centers, and nonprofits in most areas. You can find a VITA site near you by visiting the IRS website or calling 211. VITA is staffed by trained volunteers and is designed for people with income below a certain threshold (which changes yearly but is usually around $60,000).

The IRS also offers Free File, a program through which tax software companies provide free tax preparation software to people with income below a threshold. You can access Free File through the IRS website. If you use Free File, you prepare and file your own return, but the software guides you through the process and handles the SSDI taxation formula for you.

Some disability advocacy organizations and legal aid societies also offer free tax preparation for people on SSDI. Calling 211 or searching online for "free tax preparation disability" in your area may turn up local resources. Many tax preparers also offer reduced fees for people with low income.

Frequently Asked Questions

Do I have to file taxes if I only receive SSI?

No. SSI is not taxable income, so you have no federal tax filing obligation based on SSI alone. However, if you have other income—wages, interest, dividends—you may still need to file based on that income.

What happens if I don't file when I'm supposed to?

The IRS can assess penalties and interest if you owe tax and do not file. If you owe no tax, the penalty is usually waived, but you may lose the opportunity to claim refundable credits like the EITC. You also lose the protection of an official filing record if you are later audited.

Can I file my taxes online if I'm on SSDI?

Yes. You can use tax software, file through Free File, or work with a tax preparer to file electronically. E-filing is usually faster and more accurate than paper filing, and you get confirmation that the IRS received your return.

If I file taxes, will it affect my SSDI or SSI?

Filing a tax return does not affect your SSDI or SSI payment. Social Security does not use your tax return to determine your benefit. However, if you work and earn income, that income may affect your SSDI through the earnings test, regardless of whether you file taxes.

What if I owe back taxes from previous years?

Contact the IRS directly at 1-800-829-1040 or visit IRS.gov to set up a payment plan. The IRS offers installment agreements for people who cannot pay in full. You may also be able to request an offer in compromise if you cannot pay what you owe, though this is harder to obtain.