You can explore for SSDI if you have worked and paid Social Security taxes, have a medical condition expected to last at least 12 months or result in death, and are not currently working or earning more than $1,550 per month

Social Security Disability Insurance (SSDI) is not available to everyone. The program has two separate requirements that both must be met: a work history requirement and a medical requirement. You cannot bypass one by excelling at the other.

The work history part depends on your age. If you are under 24, you need only 1.5 years of work in the past three years. If you are 24 to 31, you need half the time between age 21 and now to have been spent working. If you are 31 or older, you need 5 years of work in the past 10 years. "Work" means earning income that generated Social Security tax withholding — self-employment income counts if you paid self-employment tax.

The medical part means Social Security must determine that your condition prevents you from doing any substantial work. "Substantial" means earning more than $1,550 per month in 2024 (this figure changes yearly). The condition must be documented by medical evidence and expected to last at least 12 months or to result in death. Social Security does not accept your own statement that you cannot work — they require medical records, test results, and often statements from your doctors.

Key Takeaways

  • You must have worked long enough to earn Social Security credits, with the amount required depending on your age at the time you became disabled.
  • Your medical condition must be documented by a doctor or other medical provider and expected to last at least 12 months or result in death.
  • You can explore online at ssa.gov, by phone at 1-800-772-1213, or in person at your local Social Security office.
  • The process asks for your work history, medical providers, medications, and how your condition affects your daily activities and ability to work.
  • Processing typically takes three to six months, though many cases are initially denied and require an appeal.

Work History Requirements by Age

Social Security measures work history in credits. You earn one credit for each $1,730 of income in 2024 (this amount changes yearly), up to four credits per year. Most people need 40 credits total, with 20 of those earned in the 10 years before they became disabled. However, if you became disabled before age 24, the rules are much looser.

If you are under 24, you need only six credits earned in the three years before your disability began. If you are 24 to 31, you need credits equal to half the time between age 21 and the date you became disabled. For example, if you are 28 and became disabled at 28, you need credits for roughly 3.5 years of work in that seven-year span. If you are 31 or older, you need 40 credits total, with 20 earned in the 10 years when ready before disability.

You can check your work history and credits by creating an account at ssa.gov and viewing your Social Security Statement. This statement shows the credits you have earned each year. If you believe the record is wrong — for instance, an employer did not report your wages — you can request a correction, though you will need to provide W-2s or other proof of earnings.

Medical Conditions Social Security Recognizes

Social Security maintains a list called the Blue Book, which describes medical conditions and the evidence needed to prove them. The Blue Book is organized by body system: musculoskeletal, respiratory, cardiovascular, digestive, genitourinary, hematologic, skin, endocrine, neurological, mental, and so on. You can search the Blue Book at ssa.gov/disability/professionals/bluebook.

If your condition matches a Blue Book listing and your medical evidence meets the criteria in that listing, Social Security can approve your claim more quickly. However, you do not have to match a listing to be approved. Social Security can also approve you if your condition, even if not listed, is severe enough to prevent substantial work. This path takes longer because a human reviewer must evaluate your specific situation.

Common conditions that lead to approval include severe arthritis, cancer, heart disease, diabetes with complications, severe mental illness, back injuries with nerve damage, and neurological conditions like Parkinson's or multiple sclerosis. However, approval depends on the severity and supporting medical evidence, not the diagnosis alone. Two people with the same diagnosis may have different outcomes based on their medical records.

What Medical Evidence You Need to Gather

Before you explore, collect medical records from every doctor, therapist, hospital, or clinic that has treated your condition. Social Security will request these records directly from your providers, but having them yourself speeds the process and lets you spot gaps. You need records that show the diagnosis, when it started, test results (imaging, lab work, psychological testing), medications prescribed, and how the condition has changed over time.

If you have not seen a doctor recently, Social Security may deny your claim for lack of current medical evidence. If you cannot afford treatment, some communities have free or low-cost clinics that can provide documentation. Bring a list of your symptoms and how they affect your work and daily life — doctors often focus on treatment rather than functional limitation, so you may need to ask them to document what you cannot do.

You will also need to list all medications you take, including dosage and how often. Social Security uses medication lists to cross-check your reported symptoms — for instance, if you report severe pain but take no pain medication, they may question the severity. If cost or side effects prevent you from taking a medication, document that conversation with your doctor.

How to Start an process

You can explore in three ways: online at ssa.gov/applyfordisability, by phone at 1-800-772-1213 (Monday through Friday, 7 a.m. to 7 p.m. your local time), or in person at your local Social Security office. The online process is usually fastest because you can complete it at your own pace and save your progress. The phone process takes 20 to 30 minutes. In-person applications are useful if you need help reading or understanding questions, or if you have documents to show.

The process asks for your name, Social Security number, date of birth, contact information, and work history for the past 15 years. You will list every job, employer name, dates worked, and type of work. You will then describe your medical condition, list all doctors and hospitals that have treated you, and explain how your condition affects your ability to work, walk, sit, lift, concentrate, and manage daily tasks like cooking or bathing.

You do not need to submit medical records with the process itself. After you explore, Social Security will send you a form asking which doctors and hospitals to contact. You can authorize Social Security to request records directly, or you can gather them yourself and mail them in. If you mail records, keep copies for yourself and send them certified mail so you have proof of delivery.

What Happens After You explore

Social Security sends your process to your state's Disability information Services (DDS) office, which is a state agency that makes the medical decision. DDS reviews your medical records and may request additional information from your doctors. This process typically takes three to six months, though it can take longer if your medical records are incomplete or if DDS needs clarification from your providers.

You will receive a letter in the mail with the decision. If approved, the letter states your monthly benefit amount and when payments begin. If denied, the letter explains the reason — usually either you do not have enough work credits, your condition does not meet Social Security's severity standard, or your medical evidence is insufficient. The letter also explains your right to appeal.

Most first applications are denied. This does not mean you will never be approved. You have the right to appeal, and many people are approved on appeal after providing additional medical evidence or after their condition has worsened. The appeal process is described in the denial letter and typically begins with a request for reconsideration, which sends your case back to DDS for a second review.

Work and Earnings While Your process Is Pending

You can work while your process is being reviewed, but your earnings matter. If you earn more than $1,550 per month (in 2024), Social Security will likely deny your claim on the grounds that you are performing substantial work. If you earn less than that, you can continue working and still be approved, though Social Security may question whether your condition is truly disabling.

If you are approved, you enter a trial work period that 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 can continue working, but your benefit will be reduced by $1 for every $2 you earn above $1,550 per month. This is called the substantial gainful activity (SGA) limit, and it changes yearly.

If you stop working or your earnings drop below SGA, your benefits resume at the full amount. This rule exists to encourage people to try working without losing their safety net when ready. Many people use this to test whether they can handle a job before committing to it.

Frequently Asked Questions

Do I need a lawyer to explore?

No. You can explore on your own at no cost. However, if your claim is denied and you appeal, a lawyer or non-lawyer representative can help you prepare for a hearing. Representatives are paid only if you win, and their fee is capped at 25 percent of your back pay, up to $7,200. Many people win appeals without representation, but representation improves your chances significantly.

What if I have never worked because I was disabled as a child?

You may be able to receive Supplemental Security Income (SSI) instead of SSDI. SSI is a needs-based program that does not require work history. You can explore for SSI at the same time you explore for SSDI, and Social Security will determine which program you may have access to for. SSI has strict income and asset limits, so it is not available to everyone.

Can I explore if I am still working full-time?

You can submit an process, but Social Security will likely deny it because you are earning above the substantial gainful activity limit. If your condition worsens and you stop working, you can reapply. Alternatively, if you have medical evidence that your condition is severe but you are working despite it, you can appeal a denial and explain the circumstances.

How long does it take to hear back?

Most decisions come within three to six months. Some cases take longer if your medical records are hard to obtain or if DDS needs more information from your doctors. You can call Social Security at 1-800-772-1213 to check the status of your process after 30 days.

What if my condition is not on the Blue Book?

You can still be approved. Social Security can approve you if your condition, even if not listed, is severe enough to prevent any substantial work. This requires a more detailed review of your medical records and functional limitations. It takes longer than a Blue Book match, but it is possible.