What Social Security Disability Is

Social Security Disability Insurance (SSDI) is a federal program that pays monthly benefits to people who have worked and paid Social Security taxes, but can no longer work because of a medical condition expected to last at least 12 months or result in death. You do not need to be poor to receive it — may be able to access is based on your work history and the severity of your condition, not your income or savings.

There is a separate program called Supplemental Security Income (SSI) for people who have not worked enough to earn SSDI, including children and people over 65. This guide focuses on SSDI, though the medical review process is similar for both.

The Social Security Administration (SSA) handles all SSDI decisions. They do not make a information based on a single doctor's note or your own statement — they review your complete medical history, work records, and often request additional medical evidence before deciding.

Key Takeaways

  • You must have worked long enough and paid Social Security taxes to be considered for SSDI; the exact length depends on your age when you became unable to work.
  • Your condition must be severe enough that you cannot do any substantial work, not just your previous job, and must be expected to last at least 12 months or result in death.
  • You can file online at ssa.gov, by phone at 1-800-772-1213, or in person at your local Social Security office.
  • The SSA typically takes three to six months to make an initial decision, and most first-time claims are denied; you can request reconsideration or a hearing if yours is.
  • While your case is being reviewed, you can continue working and earning up to a certain monthly amount without affecting your claim.

Whether You Have Worked Long Enough

SSDI requires you to have earned enough work credits through paying Social Security taxes. You earn one credit for each quarter (three-month period) you earn a certain amount of income — in 2024, that amount is $1,730 per quarter, though it changes yearly. Most people need 40 credits total, with at least 20 earned in the 10 years before they become unable to work.

If you became unable to work before age 31, the requirement is lower — you generally need 20 credits earned in the 10 years since you turned 21. The SSA can tell you exactly how many credits you have by reviewing your Social Security record. You can check your own record online at ssa.gov using your Social Security number, or call 1-800-772-1213 to ask.

Self-employed people and gig workers can earn credits too, as long as they report their income and pay self-employment tax. Unpaid work — volunteering, caregiving, or informal jobs — does not count toward credits.

How the SSA Determines if Your Condition Is Severe Enough

The SSA does not straightforward accept your doctor's opinion that you cannot work. Instead, they use a five-step process to evaluate whether your condition meets their definition of disability. The condition must prevent you from doing any substantial work — not just your old job — and must be expected to last at least 12 months or result in death.

The SSA maintains a list called the Blue Book that describes medical conditions they recognize as disabling. If your condition matches one of these listings and your medical evidence supports it, approval is faster. If your condition does not match a listing, the SSA looks at whether your remaining abilities allow you to do any work that exists in the national economy, even if it is different from what you did before.

Medical evidence is the foundation of every decision. The SSA will request records from your doctors, hospitals, therapists, and any specialists you have seen. They may also send you to a doctor they choose for an examination. If you do not have recent medical records or have not seen a doctor regularly, getting those records together before you file makes the process faster.

How to File Your Claim

You can file for SSDI in three ways: online at ssa.gov, by calling 1-800-772-1213 (TTY 1-800-325-0778 for deaf or hard of hearing), or by visiting your local Social Security office in person. Filing online is usually the fastest route if you have a Social Security number and basic information ready.

When you file, you will need to provide your Social Security number, birth certificate, proof of citizenship or legal residency, and a list of doctors and hospitals you have visited. You will also answer questions about your work history, your condition, and how it affects your daily activities. Be specific about what you cannot do — "I cannot lift more than 10 pounds" is more useful to the SSA than "I have back pain."

After you file, the SSA sends your case to your state's Disability information Services (DDS) office, which does the medical review. They will contact you if they need more information or want you to see a doctor for an examination. Keep your contact information current with the SSA so you do not miss any requests.

What Happens While You Wait for a Decision

The SSA typically takes three to six months to make an initial decision on a new claim, though some cases take longer if they need additional medical records or a consultative exam. You can check the status of your claim online at ssa.gov using your account, or by calling 1-800-772-1213.

While your case is pending, you can continue to work and earn income. The SSA allows you to earn up to a certain monthly amount — called Substantial Gainful Activity (SGA) — without it affecting your claim. In 2024, the SGA limit is $1,550 per month for non-blind individuals and $2,590 for blind individuals, though these amounts change yearly. Earnings above that level may result in a denial, but you can still work part-time or do trial work while your case is being reviewed.

If you are approved, your benefits typically start the month after the SSA determines you became disabled. There is a five-month waiting period built into the program, so your first payment usually comes six months after your disability began, not six months after you filed.

What Happens if Your Claim Is Denied

Most first-time SSDI claims are denied. If yours is, you receive a written notice explaining the reason. Common reasons include not having enough work credits, medical evidence that does not support the severity of your condition, or the SSA's information that you can still do some type of work.

You have the right to challenge a denial. The process has four levels: reconsideration (a different SSA examiner reviews your case), hearing before an administrative law judge, review by the Appeals Council, and federal court. Most people who are ultimately approved go through at least one appeal. You must request reconsideration within 60 days of receiving the denial notice.

You can represent yourself through the appeals process, but many people hire a disability lawyer or non-lawyer representative. These representatives are paid only if you win — typically 25 percent of your back pay, up to a maximum set by the SSA. If you cannot afford a representative, legal aid organizations in your state may help for free.

After You Are Approved

Once you are approved for SSDI, you receive a monthly benefit amount based on your earnings history. The amount is calculated using your average lifetime earnings — higher lifetime earnings mean a higher monthly benefit. You also become covered by Medicare after you have been on SSDI for 24 months, even if you are under 65.

Your case does not end after approval. The SSA periodically reviews SSDI cases to make sure beneficiaries still meet the disability criteria. The frequency depends on the likelihood that your condition will improve — some cases are reviewed every three years, others every seven years. If your condition improves and you return to work, you can report your earnings and continue receiving benefits for a trial work period while you test whether you can sustain employment.

If you work and earn above the SGA limit, your benefits may be suspended, but you do not lose your SSDI status. If your earnings drop back below the limit, your benefits resume without having to reapply.

Frequently Asked Questions

Can I file for SSDI if I have never worked?

No. SSDI requires a work history and paid Social Security taxes. If you have never worked or do not have enough work credits, you may be able to file for Supplemental Security Income (SSI) instead, which has different rules and is based on financial need rather than work history. Contact the SSA to learn which program you might be considered for.

How much will I receive each month?

Your monthly benefit is based on your lifetime earnings record. The SSA calculates an average of your highest 35 years of earnings and converts that to a monthly amount. You can see an estimate of your future SSDI benefit by creating an account at ssa.gov and viewing your Social Security statement, or by calling 1-800-772-1213.

Do I have to stop working to file for SSDI?

No. You can file while working, as long as your earnings are below the SGA limit ($1,550 per month in 2024). Many people file while still employed part-time or doing trial work. Your work history and current earnings are part of how the SSA evaluates your case.

What if my doctor says I cannot work but the SSA denies my claim?

The SSA makes its own information based on their rules and medical evidence, which may differ from your doctor's opinion. If denied, you can request reconsideration and submit additional medical evidence, ask your doctor to write a detailed statement about your functional limitations, or request a hearing before an administrative law judge who will review your case more thoroughly.

Can I receive SSDI and work at the same time?

Yes, up to a limit. While receiving SSDI, you can earn up to the SGA amount ($1,550 per month in 2024) without losing benefits. Above that, your benefits are reduced. There is also a trial work period that allows you to test your ability to work for nine months without any reduction in benefits, giving you a chance to see if you can sustain employment.