SSDI is a federal program that pays monthly benefits to people who cannot work because of a disability

Social Security Disability Insurance (SSDI) is a federal insurance program run by the Social Security Administration. It pays monthly cash benefits to workers who have a medical condition expected to last at least 12 months or result in death, and who cannot do substantial work because of that condition. You fund SSDI through payroll taxes during your working years — the same taxes that fund regular Social Security retirement benefits.

SSDI is different from Supplemental Security Income (SSI), which is a needs-based program for people with low income and limited resources. SSDI is based on your work history and the taxes you paid in. You do not have to be poor to receive SSDI, though your earnings are limited while you collect it.

The program covers three groups: workers with disabilities, workers who become blind, and workers aged 55 or older with hearing loss. Family members of a disabled worker — including a spouse, ex-spouse, or child — may also receive benefits based on that worker's earnings record.

Key Takeaways

  • SSDI pays monthly benefits to workers who cannot work due to a disability expected to last at least 12 months or cause death.
  • You must have worked long enough and recently enough to have earned enough work credits; the exact requirement depends on your age when you become disabled.
  • The Social Security Administration reviews your medical records and work history to make a decision, which typically takes three to six months.
  • You can work part-time and still receive SSDI as long as your earnings stay below a monthly limit, which changes each year.
  • Family members including spouses, ex-spouses, and children may receive benefits based on your earnings record.

How work credits determine whether you can receive SSDI

To receive SSDI, you must have earned enough work credits through payroll taxes. You earn one credit for each $1,730 of wages or self-employment income in 2024 (this amount changes yearly). You can earn up to four credits per year, so you need at least 10 years of work history to earn the maximum 40 credits required for most workers.

The exact number of credits you need depends on your age when you become disabled. If you become disabled before age 24, you may need only six credits earned in the three years before you became disabled. If you are between 24 and 31, you generally need credits equal to half the years between age 21 and the year you became disabled. At 31 and older, you typically need 20 credits, with at least five earned in the 10 years before you became disabled.

You can check your work history and credits by creating a my Social Security account at ssa.gov. This account shows your earnings record and estimates of your benefits. If you find errors, you can correct them by contacting Social Security directly.

What counts as a disability under SSDI rules

Social Security has a strict definition of disability. Your condition must prevent you from doing any substantial work — not just your current job, but any job you could reasonably do given your age, education, and work experience. The condition must be expected to last at least 12 months or result in death.

Social Security maintains a list called the Blue Book of conditions that automatically meet the disability standard. These include advanced cancer, severe heart disease, Lou Gehrig's disease (ALS), and severe arthritis, among many others. If your condition is on the list and your medical records support it, approval is faster.

If your condition is not on the list, Social Security evaluates whether it prevents you from working. This evaluation considers your medical records, test results, and statements from your doctors. You do not need to prove you cannot work at all — only that you cannot do substantial work. In 2024, substantial work means earning more than $1,550 per month (this limit changes yearly).

The process process and what to expect

You can explore for SSDI online at ssa.gov, by phone at 1-800-772-1213, or in person at your local Social Security office. You will need your Social Security number, birth certificate, proof of citizenship or legal residency, and medical records related to your condition.

After you submit your process, Social Security sends it to your state's Disability information Services office, which makes the initial decision. This office reviews your medical records, contacts your doctors if needed, and may order additional tests. The process typically takes three to six months, though it can take longer if your case is complex or if you need more medical evidence.

If Social Security denies your claim, you have the right to appeal. Most people who are denied initially are approved on appeal, especially if they provide additional medical evidence or hire a representative. The appeals process has four stages: reconsideration, a hearing before an administrative law judge, Appeals Council review, and federal court review.

How much SSDI pays and how earnings affect your benefits

Your monthly SSDI benefit is based on your average lifetime earnings. In 2024, the average SSDI benefit is around $1,550 per month, but amounts vary widely depending on your work history. You can estimate your benefit using the benefit calculator on ssa.gov.

While you receive SSDI, you can work and earn money, but there are limits. In 2024, you can earn up to $1,550 per month without affecting your benefits. Above that amount, Social Security deducts $1 from your benefits for every $2 you earn. This is called the substantial gainful activity (SGA) limit. Once your earnings consistently exceed the SGA limit, Social Security may determine you are able to work and stop your benefits.

There is also a nine-month trial work period that allows you to test your ability to work without losing benefits. During these nine months, you can earn any amount and keep your full SSDI payment. After the trial work period ends, the SGA earnings limit applies.

What happens to your benefits when you reach full retirement age

When you reach full retirement age — which is 66 or 67 depending on your birth year — your SSDI benefits automatically convert to regular Social Security retirement benefits. The amount you receive stays the same; only the name of the program changes. This conversion happens automatically; you do not need to do anything.

If you continue to work after reaching full retirement age, your earnings no longer affect your benefits. You can earn any amount without losing money. This is different from the rules while you are receiving SSDI.

Family members who can receive benefits on your record

If you receive SSDI, your spouse, ex-spouse, and unmarried children under age 19 (or up to age 19 if still in high school) may receive benefits based on your earnings record. An ex-spouse can receive benefits if you were married for at least 10 years and they are at least 62 years old. A current spouse can receive benefits at any age if they are caring for your child who is under 16.

Each family member receives a separate benefit, but there is a family maximum. The total amount paid to all family members cannot exceed 150 to 180 percent of your benefit amount. If the family total would exceed this limit, each family member's benefit is reduced proportionally.

Family members must meet the same work credit requirements you did, and they must be U.S. citizens or lawful residents. Children must be your biological children, adopted children, or stepchildren, and they must depend on you for at least half their support.

Frequently Asked Questions

Can I receive SSDI if I have never worked?

No. SSDI requires work credits earned through payroll taxes. If you have never worked or have very few work credits, you may be able to receive Supplemental Security Income (SSI) instead, which is a needs-based program that does not require work history. SSI has strict limits on income and resources.

How long does it take to get approved for SSDI?

The initial decision typically takes three to six months. If you are denied and appeal, the timeline depends on which appeal stage you are at. A hearing before an administrative law judge can take six months to two years, depending on your local office's backlog.

What if my condition improves while I am receiving SSDI?

You must report any improvement in your condition to Social Security. If your condition improves enough that you can work, Social Security may stop your benefits. You have a nine-month trial work period to test your ability to work without losing benefits, and you can receive benefits for three more months after that period ends while you adjust to working.

Can I receive SSDI and workers' compensation at the same time?

Yes, but your total monthly benefit from both programs cannot exceed 80 percent of your average current earnings before you became disabled. If it would exceed that amount, Social Security reduces your SSDI benefit to stay within the limit.

Do I need a lawyer to explore for SSDI?

You do not need a lawyer to explore, but many people hire a representative for the appeals process. Representatives can be lawyers or non-lawyer advocates. They can charge a fee only if you win your case, and the fee is limited to 25 percent of your back pay or $7,200, whichever is less.