What SSDI Is and Who Runs It

Social Security Disability Insurance (SSDI) is a federal program run by the Social Security Administration that pays monthly benefits to people who cannot work because of a medical condition expected to last at least 12 months or result in death. The program is funded through payroll taxes — the same taxes that fund retirement Social Security — so you must have worked and paid into the system to receive it.

SSDI is different from Supplemental Security Income (SSI), which is a separate program for people with disabilities who have little or no work history or income. Both are administered by Social Security, but they have different rules about how much you can earn, what assets you can own, and who qualifies.

The Social Security Administration is the only body that makes SSDI decisions. You cannot receive SSDI through a private company, employer program, or state agency — all decisions come from Social Security's local field offices or their hearing offices if you appeal.

Key Takeaways

  • SSDI requires a work history and medical condition that prevents substantial work for at least 12 months, and Social Security makes the final decision on your case.
  • You submit medical evidence — test results, doctor's notes, hospital records — not just a doctor's letter, and Social Security may order its own examination at no cost to you.
  • The decision process typically takes three to six months, but if Social Security denies you, you can request reconsideration or a hearing before an administrative law judge.
  • Once approved, you receive a monthly payment amount based on your lifetime earnings record, and you can work part-time up to certain limits without losing benefits.
  • Your local Social Security field office is your starting point, and you can also begin the process online through Social Security's website.

How Social Security Decides If Your Condition Qualifies

Social Security uses a five-step process to evaluate whether your medical condition prevents you from working. The first step is whether you are currently working and earning more than a certain monthly amount (this amount changes yearly). If you are, Social Security will usually deny your case without reviewing your medical condition.

The second step is whether your condition is severe — meaning it causes more than minor limitations in your ability to work. The third step checks whether your condition matches one of Social Security's Listing of Impairments, which is a detailed guide of conditions that automatically may have access to. These listings cover things like cancer, heart disease, arthritis, mental illness, and neurological disorders, but they are specific about what medical evidence you need to show.

If your condition does not match a listing, Social Security moves to step four: whether you can do the work you did in the past 15 years. If you cannot, step five asks whether you can do any other work that exists in the national economy, considering your age, education, and work skills. This is where many cases are decided, and it is also where appeals often succeed.

What Medical Evidence You Need to Gather

Social Security does not make a decision based on your word or a single letter from your doctor. You need to submit actual medical records — test results, imaging reports, lab work, hospital discharge summaries, and detailed notes from your treating doctors about your symptoms, limitations, and treatment history.

Start by getting records from every doctor, specialist, hospital, and clinic that has treated you for your condition in the past few years. Call each one and ask for your complete medical file. Some charge a copying fee (usually $0.25 to $1 per page), and some take weeks to send records, so start this process early. You can submit records as you receive them; you do not need to wait until you have everything.

If you have not seen a doctor recently, Social Security may order a consultative examination at no cost to you. A doctor they choose will examine you and send a report to Social Security. This is not a second opinion — it is Social Security gathering information they think is missing from your file.

Where to Start and What to Submit

You can begin the process in three ways: visit your local Social Security field office in person, call Social Security at 1-800-772-1213 (TTY 1-800-325-0778), or start online at ssa.gov. The online option is often fastest because you can work at your own pace and upload documents as you gather them.

When you start, Social Security will ask for your work history (job titles, employers, dates), your medical conditions, the doctors and hospitals treating you, and your education level. Have your Social Security number, birth certificate, and a list of your jobs ready. You do not need to have all your medical records yet — you can submit them later.

After you submit your initial information, Social Security sends you a form called the Function Report. This asks detailed questions about what you can and cannot do in daily life — how far you can walk, whether you can lift things, how you manage personal care, and whether you can concentrate on tasks. Answer these questions carefully and honestly, because they directly affect how Social Security evaluates your case.

How Long the Decision Takes and What Happens Next

Most initial decisions take three to six months. Social Security's Disability information Services (a state agency that works for Social Security) reviews your file and sends a decision to your local field office. You receive a letter in the mail explaining whether you were approved or denied.

If you are approved, the letter tells you your monthly benefit amount and when payments begin. SSDI payments typically start the month after you become disabled, though the exact timing depends on your work history. You also become may be able to access for Medicare after you have received SSDI for 24 months.

If you are denied, the letter explains the reason. The most common reasons are that Social Security found your condition is not severe enough, that you can still do your past work, or that you can do other work available in the economy. You have 60 days from the date on the letter to request reconsideration, which means Social Security reviews your case again with any new medical evidence you submit.

What Happens If Social Security Denies You

If reconsideration is also denied, you can request a hearing before an Administrative Law Judge (ALJ). This is a real hearing where you can present evidence and testify about your condition. Many people hire a disability lawyer or representative at this stage, and representatives often work on contingency — meaning they take a percentage of your back pay if you win, rather than charging you upfront.

The hearing process takes several months. You submit written statements and medical records, and the judge may order another medical examination. At the hearing itself, you explain how your condition affects your daily life and work ability, and the judge asks questions. The judge then issues a written decision, usually within a few weeks.

If the judge denies you, you can appeal to the Appeals Council, and if that is denied, you can file a lawsuit in federal court. These later stages are rare and usually require a lawyer, but they are available if you believe Social Security made an error.

How Much You Receive and Work Limits

Your monthly SSDI payment is based on your lifetime earnings record — specifically, your average earnings over your working years. The more you earned before you became disabled, the higher your payment. Social Security calculates this automatically; you do not choose an amount.

In 2024, the average SSDI payment is around $1,550 per month, but this varies widely depending on your earnings history. You can see your estimated payment by creating an account at ssa.gov and viewing your Social Security Statement.

Once you receive SSDI, you can work part-time and still keep your benefits, as long as your earnings stay below a monthly limit (this limit changes yearly). If you earn more than the limit, your benefits are reduced or stopped. There is also a nine-month trial work period during which you can earn any amount without losing benefits — this is designed to let you test whether you can return to work.

Frequently Asked Questions

Can I get SSDI if I have never worked?

No. SSDI requires a work history and contributions to Social Security through payroll taxes. If you have never worked or worked very little, you may be able to receive Supplemental Security Income (SSI) instead, which has different rules and does not require a work history.

How much medical evidence do I need to submit?

There is no fixed amount, but Social Security needs enough evidence to understand your condition, how it limits you, and how long it will last. This usually means records from at least one treating doctor covering several months, plus any test results or specialist reports. More evidence is generally better than less, especially if it is recent and detailed.

What if my condition gets worse after I am approved?

You do not need to report a worsening condition unless it changes your ability to work. Social Security periodically reviews approved cases to make sure you still may have access to. If your condition improves enough that you can work, Social Security may stop your benefits, but you have the right to request another hearing to explain why you still cannot work.

Can I work while waiting for a decision?

Yes. Working does not affect your case, but if you earn more than the monthly limit, Social Security may deny your case based on substantial work activity. Keep your earnings below the limit (which changes yearly) if you want to avoid this issue.

Do I need a lawyer to explore for SSDI?

No. Many people are approved without a lawyer. However, a lawyer or representative can help you gather medical evidence, prepare for a hearing, and present your case to a judge. If you hire a representative, they can only charge you if you win, and the fee is limited by law.