SSDI requires both a medical condition and work credits

To receive Social Security Disability Insurance (SSDI), you must meet two separate requirements at the same time. First, you must have a medical condition that prevents you from working and is expected to last at least 12 months or result in death. Second, you must have earned enough work credits through Social Security taxes paid on your wages. Neither one alone is enough—you need both.

The medical part is what most people think about first. But the work credits part is what stops many people who do have serious conditions. If you haven't worked enough years in jobs where Social Security taxes were taken from your pay, you won't receive SSDI even if your condition is severe.

Key Takeaways

  • You must have a medical condition that prevents substantial work and will last at least 12 months or be terminal.
  • You must have earned work credits by paying Social Security taxes, with the number required depending on your age when you became disabled.
  • The Social Security Administration uses its own list of conditions that automatically meet the medical requirement, called the Blue Book.
  • If your condition is not on the Blue Book, you can still may have access to by showing your condition is equally severe.
  • You must report your condition to Social Security and go through a review process; the agency does not find you automatically.

What counts as a may have access to medical condition

Social Security has a specific definition of disability. Your condition must prevent you from doing "substantial gainful activity"—which means work that earns more than a set monthly amount. In 2024, that amount is $1,550 per month for most people and $4,100 for people who are blind. If you earn more than that, Social Security considers you able to work, regardless of your condition.

Your condition must also be expected to last at least 12 months or be terminal. A broken leg that heals in three months does not may have access to. A condition that might improve does not may have access to. The condition must be one that will keep you from working for a year or longer, or one that is fatal.

Social Security maintains a list called the Blue Book that describes conditions it recognizes as disabling. The list includes things like cancer, heart disease, arthritis, mental health conditions, neurological disorders, and many others. If your condition matches one on the Blue Book, and your medical records support it, you meet the medical requirement.

If your condition is not on the Blue Book, you can still may have access to. You must show that your condition is equally severe—that it limits you in the same ways as conditions that are listed. This requires detailed medical records and often takes longer to approve.

How work credits are calculated and what you need

You earn one work credit for every $1,550 you earn in a year (in 2024; this amount changes yearly). You can earn a maximum of four credits per year. Most people need 40 work credits total to may have access to for SSDI, but the requirement is lower if you became disabled before age 24.

The work credits must have been earned recently enough. Social Security looks at whether you have earned 20 of your 40 credits in the 10 years before you became disabled. This is called the "20/40 rule." If you became disabled at age 35, for example, you would need 20 of your 40 credits to have been earned between age 25 and age 35.

If you became disabled before age 24, you need fewer credits. At age 22, you need only 6 credits earned in the three years before you became disabled. At age 20, you need 6 credits earned in the three years before you became disabled. At age 19 or younger, you need 6 credits earned in the three years before you became disabled.

You can check how many work credits you have by creating an account on ssa.gov and viewing your Social Security Statement. This statement shows your earnings history and the credits you have earned each year.

How Social Security reviews your medical condition

When you report your condition to Social Security, the agency does not automatically approve or deny you. Instead, it sends your case to a Disability information Services office in your state. This office is part of your state's vocational rehabilitation agency, not Social Security itself.

The Disability information Services office reviews your medical records, orders additional tests or evaluations if needed, and decides whether your condition meets Social Security's definition of disability. This process typically takes three to six months, though it can take longer if your medical records are incomplete or if the office needs more information.

If the state office denies you, you have the right to appeal. Most people who are denied the first time do not appeal, but many who do appeal are eventually approved. An appeal goes through several stages: reconsideration (another state office reviews your case), a hearing before an administrative law judge, and further appeals if needed.

Work you do while waiting for a decision

If you work while your case is being decided, it does not automatically disqualify you. Social Security looks at whether your work is "substantial gainful activity." If you earn less than $1,550 per month (in 2024), Social Security generally does not consider it substantial work. If you earn more, your case may be denied or delayed.

Some people continue working part-time while their SSDI case is pending. If you are approved, you can continue working part-time under a program called Impairment Related Work Expenses (IRWE), which allows you to deduct certain work-related costs from your earnings when Social Security calculates whether you are doing substantial work.

When you do not have enough work credits

If you do not have enough work credits to may have access to for SSDI, you may still have other options. Supplemental Security Income (SSI) is a different program that does not require work credits. Instead, it is based on your current income and resources. If you have very little income and few assets, you may may have access to for SSI even if you have never worked.

SSI payments are typically lower than SSDI payments, and the rules are stricter about how much money and property you can own. But SSI does not require work credits, so it is available to people who became disabled before they had a chance to work much, or who worked in jobs where Social Security taxes were not taken out.

You can explore for both SSDI and SSI at the same time. Social Security will review you for both programs and tell you which one you may have access to for, or whether you may have access to for both.

What happens after you are approved

If you are approved for SSDI, you become may have access to to monthly payments. The amount depends on your earnings history—specifically, on how much you earned in the years you worked. Higher lifetime earnings mean higher SSDI payments.

You also become covered by Medicare after you have been on SSDI for 24 months. This means you get hospital insurance (Part A) and can choose to enroll in medical insurance (Part B). Some people also become covered by Medicaid, depending on their state and their SSDI payment amount.

While you are on SSDI, you must report any changes in your medical condition, your work activity, or your living situation. If your condition improves enough that you can work substantially, your SSDI payments will stop. Social Security has programs like Plan to Achieve Self-Support (PASS) that let you work and save money toward a work goal while keeping some of your benefits, but you must set up the plan in advance.

Frequently Asked Questions

Can I get SSDI if I have never worked?

No, SSDI requires work credits earned through Social Security taxes. If you have never worked or worked very little, you may may have access to for SSI instead, which does not require work credits. SSI is based on your current income and resources, not your work history.

What if I worked but in a job where Social Security taxes were not taken out?

Those years do not count toward your work credits. Only jobs where you paid Social Security taxes count. If you worked for a government employer that had its own retirement system, or if you were self-employed and did not pay self-employment taxes, those earnings do not create work credits.

Can my condition be too mild to may have access to even if it stops me from working?

Yes. Your condition must prevent substantial gainful activity, which Social Security defines as earning more than $1,550 per month (in 2024). If you can work part-time and earn less than that, or if your condition does not significantly limit your ability to work, you may not meet the medical requirement.

How long does it take to learn about I may have access to?

The initial decision usually takes three to six months. If you are denied and appeal, the process can take one to three years depending on how many appeal stages you go through. Having complete medical records from the start can speed up the initial decision.

Do I have to stop working to explore for SSDI?

No. You can work while your case is being decided. If you earn less than $1,550 per month (in 2024), it generally does not affect your case. If you earn more, Social Security may deny your case or ask for more information about your work activity.