Social Security Disability Insurance is a federal program that pays monthly cash benefits to people who cannot work because of a disability, and to certain family members

SSDI is run by the Social Security Administration (SSA). You fund it through payroll taxes during the years you work — the same taxes that go toward retirement benefits. If you become disabled before retirement age, SSDI can provide income while you're unable to work. The program also covers your spouse and children under certain conditions, even if they themselves have never worked.

SSDI is different from Supplemental Security Income (SSI), another disability program run by SSA. The main difference: SSDI is based on your own work history and the taxes you've paid. SSI is based on financial need, regardless of work history. Some people receive both, but they are separate programs with separate rules.

To receive SSDI, you must have a medical condition that is expected to last at least 12 months or result in death, and the condition must prevent you from doing substantial work. "Substantial work" means earning more than a certain monthly amount — in 2024, that threshold is $1,550 per month, though this figure changes yearly.

Key Takeaways

  • SSDI pays monthly benefits based on your work history and the taxes you paid into Social Security, not on financial need.
  • You must have worked long enough and recently enough to have "insured status," which means you've earned enough work credits in your lifetime.
  • Your spouse, ex-spouse, and children may receive benefits on your record even if they have never worked.
  • The SSA will review your medical condition and work history, and the process typically takes three to six months from start to decision.
  • If your initial claim is denied, you have the right to appeal, and most people who appeal with legal representation eventually receive benefits.

Who can receive SSDI benefits

You must meet two requirements: you must have a may have access to disability, and you must have worked long enough to have earned "insured status." Insured status means you've accumulated enough work credits — the SSA awards these credits based on your annual earnings, up to four per year. Most people need 40 credits total, with at least 20 earned in the 10 years before they became disabled, though younger workers need fewer.

Beyond you, family members can receive benefits on your SSDI record. Your spouse can receive benefits at any age if they care for your child under 16, or at age 62 or older. Your ex-spouse can receive benefits if you were married at least 10 years, you're at least 62, and you've been divorced at least two years. Your unmarried children can receive benefits until age 18, or until age 19 if they're in high school full-time. Adult children disabled before age 22 can receive benefits for life.

Family members do not need to have worked. The SSA calls these payments "auxiliary benefits," and they're based entirely on your work record and the taxes you paid.

Medical conditions SSDI covers

SSDI covers a wide range of disabilities: physical conditions like arthritis, cancer, heart disease, and back injuries; mental health conditions like depression, anxiety, and schizophrenia; neurological conditions like Parkinson's disease and multiple sclerosis; and intellectual disabilities. The SSA maintains a list called the "Blue Book" that describes conditions it recognizes as disabling, but having a condition on that list does not may provide approval — the SSA still evaluates whether your specific case prevents you from working.

What matters most is not the name of your condition, but how it affects your ability to work. Two people with the same diagnosis may have very different outcomes. Someone with severe arthritis who cannot grip or stand might may have access to; someone with mild arthritis who can still perform desk work might not. The SSA looks at your medical records, test results, and what doctors say about your functional limitations.

The condition must be expected to last at least 12 months or result in death. Short-term disabilities, even severe ones, do not may have access to. If you recover or your condition improves enough that you can work again, your benefits can end.

How to start the SSDI process

You can file a claim online at ssa.gov, by phone at 1-800-772-1213, or in person at your local Social Security office. Online filing is usually fastest. You'll need your Social Security number, birth certificate, proof of citizenship or legal residency, and medical records related to your condition.

The SSA will ask detailed questions about your work history, your medical condition, your doctors and hospitals, your medications, and how your condition limits what you can do. Be thorough and honest. If you don't have all your medical records yet, you can file now and gather them later — the SSA can request them on your behalf, though this slows the process.

After you file, the SSA sends your case to your state's Disability information Services (DDS) office, which makes the initial decision. This typically takes 60 to 90 days, though it can take longer if they need more medical evidence. You'll receive a written decision by mail.

What happens if your claim is denied

Most initial claims are denied. This does not mean you don't have a disability or that you won't eventually receive benefits. It means the SSA decided your condition doesn't meet their definition of disability based on the evidence they reviewed. Common reasons for denial include insufficient medical evidence, a condition that's expected to improve, or work activity that the SSA considers substantial.

You have the right to appeal. The first appeal is called "reconsideration," and a different SSA examiner reviews your case. If reconsideration is denied, you can request a hearing before an Administrative Law Judge (ALJ). If the ALJ denies you, you can appeal to the Appeals Council, and then to federal court. Most people who appeal with help from a disability representative or attorney eventually receive benefits, though the process can take years.

While you appeal, you can continue working if you're able, but report any work activity to the SSA. Working can affect your case, so it's important to be transparent about what you're doing.

How much SSDI pays and how it's calculated

Your monthly benefit amount is based on your lifetime average earnings. The SSA calculates this using your 35 highest-earning years of work. If you worked fewer than 35 years, they count zeros for the missing years, which lowers your average. The national average SSDI payment in 2024 is around $1,550 per month, but individual amounts vary widely — some people receive $600 per month, others receive $3,800 or more.

Family members who receive auxiliary benefits get a percentage of your benefit amount. The total paid to your entire family cannot exceed 150 to 180 percent of your own benefit, depending on how many family members are receiving benefits. If multiple family members may have access to, the SSA divides the family maximum among them.

Your benefit amount does not change based on financial need or cost of living in your area. It's the same whether you live in an expensive city or a rural area. However, your benefit is adjusted each year for inflation — the SSA calls this the Cost of Living Adjustment (COLA).

Work incentives and continuing to earn while on SSDI

SSDI includes programs that let you test your ability to work without when ready losing benefits. The most common is the Trial Work Period, which lets you work for up to nine months (not necessarily consecutive) and earn any amount without affecting your benefits. After the Trial Work Period ends, there's an Extended may be able to access Period of 36 months during which you can work and still receive partial benefits if your earnings fall below the substantial work threshold.

Other work incentives include the Plan to Achieve Self-Support (PASS), which lets you set aside income and resources for a work goal, and Impairment Related Work Expenses (IRWE), which lets you deduct disability-related costs from your earnings. These programs are complex, and it's worth asking the SSA or a work incentive counselor how they might explore to your situation.

If you return to work and your earnings exceed the substantial work threshold for nine months, the SSA will review your case to determine whether you're still disabled. If you recover, your benefits end. If you're still disabled but working, you may receive partial benefits or none, depending on how much you earn.

Frequently Asked Questions

How long does it take to get SSDI?

The initial decision usually takes 60 to 90 days. If you're denied and appeal, reconsideration takes another 60 to 90 days. A hearing before a judge can take one to two years. The entire process from filing to approval can range from a few months to several years, depending on how many times you appeal and how complex your case is.

Can I work while waiting for SSDI?

Yes. Working doesn't disqualify you from SSDI. However, if you earn more than the substantial work threshold ($1,550 per month in 2024), the SSA may use that as evidence that you can work and deny your claim. Report all work activity to the SSA when you file and during any appeals.

What's the difference between SSDI and SSI?

SSDI is based on your work history and payroll taxes. SSI is based on financial need and is available to people with disabilities who have little income or resources, regardless of work history. You can receive both programs at the same time, but they have separate rules and different payment amounts.

Do I need a lawyer to explore for SSDI?

You don't need a lawyer to file an initial claim. Many people file on their own. However, if your claim is denied and you appeal, a disability representative or attorney can significantly improve your chances. Representatives are paid only if you win, and their fee is capped by law at 25 percent of your back pay, up to $7,200.

What happens to my SSDI if I turn 65?

Your SSDI automatically converts to retirement benefits at age 65 or 66, depending on your birth year. The payment amount stays the same. You're no longer called a "disabled worker," but you continue receiving the same monthly benefit for the rest of your life.