What Social Security Disability Insurance Is

Social Security Disability Insurance (SSDI) is a federal program that pays monthly cash benefits to people who have worked and paid Social Security taxes, but can no longer work because of a medical condition. Unlike some information programs that look at your income or savings, SSDI is based on your work history and the taxes you have already paid into the system.

The Social Security Administration (SSA) runs SSDI. To receive benefits, you must have a condition that is expected to last at least 12 months or result in death, and you must have worked long enough and recently enough to have built up what the SSA calls "insured status." This is different from Supplemental Security Income (SSI), which is a separate program for people with disabilities who have little or no work history.

SSDI payments go directly to your bank account each month. The amount you receive depends on your earnings record — specifically, how much you earned during your working years. Family members may also receive benefits based on your work record if you are approved.

Key Takeaways

  • SSDI requires you to have worked and paid Social Security taxes for a certain period, with the exact requirement depending on your age when you became disabled.
  • Your condition must be severe enough that you cannot work and is expected to last at least 12 months or result in death.
  • The SSA maintains a list of conditions that automatically meet their severity standard, though you can also show your condition is equally severe even if it is not on the list.
  • You can work part-time and still receive SSDI benefits during a trial work period, which lasts nine months and lets you test whether you can return to full-time work.
  • The process from filing to a decision typically takes three to six months, though appeals can take much longer.

How Work Credits and Insured Status Work

To be found disabled under SSDI, you must have earned enough work credits by paying Social Security taxes. You earn one credit for each quarter (three-month period) in which you earn a certain amount of income — the dollar amount changes each year, but in 2024 you earn one credit for each $1,550 you earn, up to four credits per year.

How many credits you need depends on your age when you became disabled. If you became disabled before age 24, you generally need six credits earned in the three years before you became disabled. If you were between 24 and 31, you need credits equal to half the quarters between age 21 and the quarter you became disabled. If you were 31 or older, you generally need 40 credits total, with at least 20 earned in the 10 years before you became disabled.

Self-employed people, gig workers, and anyone else who pays self-employment tax can earn credits the same way. The key is that the income must be reported to the SSA through tax returns or other official records.

What Conditions may have access to for SSDI

The SSA maintains a list called the Blue Book that describes conditions severe enough to may have access to for SSDI. The list includes cancers, heart disease, diabetes, arthritis, mental health conditions, neurological disorders, and many others. If your condition matches one of these listings and your medical evidence supports it, the SSA can approve you without further evaluation.

You do not have to have a condition on the Blue Book list to receive SSDI. You can also show that your condition, even if it is not listed, is equally severe and prevents you from working. This requires detailed medical evidence and often takes longer to evaluate.

The SSA looks at whether you can do any work at all, not just your previous job. They consider your age, education, work experience, and the physical and mental demands of any job you might do. If you are over 50 and have limited education, the SSA may find it harder for you to adjust to other work, which can help your case.

The process and Decision Process

You can file 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 file, the SSA sends your case to your state's Disability information Services (DDS) office, which makes the actual decision. The DDS will request medical records from your doctors and may order a consultative exam if they need more information. This process typically takes three to six months, though it can take longer if your case is complex or if the DDS needs additional evidence.

You will receive a written decision in the mail. If you are approved, the letter will tell you when your benefits start and how much you will receive each month. If you are denied, the letter will explain why and tell you how to appeal.

What Happens If You Are Denied

About 65 to 70 percent of initial SSDI applications are denied. If your process is denied, you have the right to appeal. There are four levels of appeal: reconsideration, hearing before an administrative law judge, Appeals Council review, and federal court.

For reconsideration, the SSA sends your case to a different examiner at the DDS. You can submit new medical evidence or other information you did not include the first time. This usually takes two to three months.

If reconsideration is denied, you can request a hearing before an administrative law judge (ALJ). At a hearing, you can present evidence, have a representative speak for you, and question any witnesses the SSA presents. Many people hire a lawyer or non-lawyer representative for the hearing. Hearings typically happen four to six months after you request one, though wait times vary by location.

If the ALJ denies your case, you can ask the Appeals Council to review it. If the Appeals Council denies you, you can file a lawsuit in federal court. These later stages can take a year or more.

Work Incentives and the Trial Work Period

SSDI includes work incentives designed to let you test whether you can return to work without when ready losing your benefits. The most important is the trial work period, which lasts nine months. During this time, you can earn any amount and still receive your full SSDI benefit.

After the trial work period ends, you enter the extended may be able to access period, which lasts 36 months. During this time, you can work and earn up to a certain amount (called substantial gainful activity, or SGA) and still receive benefits for any month your earnings fall below that threshold. In 2024, SGA is $1,550 per month for non-blind individuals and $2,590 for blind individuals, but these amounts change each year.

If you work and earn above the SGA level for nine months during the extended may be able to access period, your benefits stop. However, you can restart them if your earnings drop below SGA again, without having to file a new process. This is called a reinstatement.

Other work incentives include a 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 certain costs related to your disability from your earnings when calculating whether you have exceeded the SGA limit.

How SSDI Affects Other Benefits and Income

SSDI does not reduce your benefits based on other income you receive. Unlike some information programs, there is no income limit — you can receive SSDI and also receive unemployment benefits, workers' compensation, or other government benefits at the same time.

However, if you receive workers' compensation or public disability benefits (such as a state disability program), the SSA may reduce your SSDI payment so that your total does not exceed 80 percent of your average current earnings before you became disabled. This is called the workers' compensation offset.

If you are receiving SSDI and you turn 66, your SSDI benefits automatically convert to retirement benefits at the same rate. You do not need to do anything — the SSA handles the conversion automatically.

Medicare and Medicaid With SSDI

After you receive SSDI for 24 months, you become may be able to access for Medicare, the federal health insurance program for people over 65 and certain people with disabilities. Medicare has four parts: Part A (hospital insurance), Part B (medical insurance), Part D (prescription drug coverage), and Part C (Medicare Advantage, an alternative to Parts A and B). You pay premiums for Parts B and D, though the premiums are deducted from your SSDI check.

You may also be may be able to access for Medicaid, which is a joint federal-state program that covers low-income people. Medicaid rules vary by state. In some states, receiving SSDI automatically qualifies you for Medicaid. In others, you must have income and resources below certain limits. Contact your state Medicaid office to learn what you may have access to for.

Frequently Asked Questions

Can I receive SSDI if I have never worked?

No. SSDI requires you to have worked and paid Social Security taxes. If you have a disability but have never worked, you may be able to receive Supplemental Security Income (SSI) instead, which is a separate program based on financial need rather than work history. SSI has strict income and resource limits.

How much will I receive in SSDI benefits each month?

Your monthly benefit is based on your lifetime earnings record. The SSA calculates your Primary Insurance Amount (PIA) using a formula that weights your highest-earning years. The average SSDI benefit in 2024 is around $1,550 per month, but individual amounts range widely. You can see an estimate of your benefit by creating an account at ssa.gov and viewing your Social Security statement.

What if I disagree with the medical evidence the SSA used?

You can submit additional medical evidence at any stage of the process, including during appeals. If you believe the SSA's consultative exam was incomplete or inaccurate, you can explain why in your appeal and submit records from your own doctors. An administrative law judge at a hearing will consider all the evidence you present.

Can my family members receive benefits based on my SSDI?

Yes. Your spouse (if age 62 or older, or caring for your child under age 16), your unmarried children under age 18 (or 19 if still in high school), and your unmarried adult children who became disabled before age 22 may all receive benefits based on your work record. Each family member receives a percentage of your benefit amount.

What happens to my SSDI if I move to another country?

SSDI benefits generally stop if you leave the United States for more than 30 days, with some exceptions for citizens of certain countries. If you are a U.S. citizen, your benefits may restart when you return. If you are not a U.S. citizen, the rules are more restrictive. Contact the SSA before you travel to learn how your specific situation is handled.