SSDI is a federal program that pays monthly cash to people who cannot work because of a medical condition

SSDI stands for Social Security Disability Insurance. It is a program run by the Social Security Administration that sends you a monthly payment if you have a condition that stops you from working for at least 12 months, or if your condition is terminal. You do not have to be poor to receive SSDI — it is based on your work history, not your income or savings.

The program exists because you paid into Social Security through payroll taxes when you worked. SSDI treats your disability the same way it treats retirement: as something you have already paid for. The money comes from the Social Security trust fund, the same fund that pays retirement benefits.

SSDI is different from Supplemental Security Income (SSI), which is a needs-based program for people with low income and few assets. You can receive both SSDI and SSI at the same time if your SSDI payment is low enough, but they are separate programs with different rules.

Key Takeaways

  • SSDI pays a monthly benefit based on your past earnings, not on how much money you have now.
  • You must have worked long enough and recently enough to have earned Social Security credits before your condition began.
  • Your condition must prevent you from working for at least 12 months or be expected to result in death.
  • The Social Security Administration decides whether your condition meets their medical criteria, which is stricter than most people expect.
  • You can work part-time and still receive SSDI if your earnings stay below a certain amount each month.

How much SSDI pays each month

Your SSDI payment is based on your lifetime average earnings before you became disabled. The Social Security Administration calculates this by looking at your highest 35 years of earnings. If you have not worked 35 years, they count zeros for the missing years, which lowers your payment.

The average SSDI payment in 2024 is around $1,500 per month, but this varies widely. Someone who worked in a low-wage job for 20 years will receive less than someone who worked full-time in a higher-wage job. There is no way to know your exact payment amount until you file, because Social Security has to pull your complete earnings record.

Your payment does not change based on your living situation, whether you own a home, or how much money you have in the bank. SSDI has no asset limit and no income limit from other sources — only a limit on how much you can earn from work.

Who can receive SSDI

To receive SSDI, you must meet three requirements at the same time: you must have a medical condition that meets Social Security's definition of disability, you must have worked long enough to earn Social Security credits, and your condition must have started (or been diagnosed) while you were insured.

The work requirement is the part that surprises most people. You need a certain number of Social Security credits, which you earn by working and paying payroll taxes. The number of credits you need depends on your age when your condition began. If you became disabled at age 30, you need 20 credits. If you became disabled at age 50, you need 40 credits. You earn one credit for every $1,730 you earn in a year (this amount changes each year), and you can earn a maximum of four credits per year.

This means that if you have never worked, or if you worked only briefly before your condition began, you will not meet the work requirement for SSDI. You might instead be able to receive SSI, which does not require a work history.

What Social Security considers a disability

Social Security has a specific definition of disability that is narrower than most people think. Your condition must prevent you from doing any substantial work — not just your old job, but any job that exists in the economy. This is a very high bar.

Social Security publishes a list called the Blue Book that describes conditions they recognize as disabling. The list includes conditions like advanced cancer, severe heart disease, and severe mental illness, but it also includes many less obvious conditions. However, being on the Blue Book list does not automatically mean you will be approved. Social Security still has to decide that your specific case meets the criteria.

If your condition is not on the Blue Book list, you can still be approved, but you have to show that your condition is as severe as something that is on the list. This is harder to prove and takes longer.

How to start the SSDI 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, and medical records that show your condition and when it started.

Social Security will ask you detailed questions about your work history, your medical condition, your doctors, and what you can and cannot do physically and mentally. Be honest and specific — vague answers slow down the process. If you cannot remember exact dates, give your best estimate and let Social Security know you are estimating.

After you file, Social Security sends your case to a state disability information office, which reviews your medical records and decides whether you meet their definition of disability. This process usually takes three to six months, though it can take longer if they need more medical information from your doctors.

What happens if Social Security says no

Most people are denied SSDI the first time they explore. This does not mean you are ineligible — it often means Social Security needs more information, or your medical records did not clearly show how severe your condition is.

You have the right to appeal a denial. You can ask for reconsideration, which means a different examiner reviews your case. You can also request a hearing before an administrative law judge, which is where many people are approved. You do not have to hire a lawyer to appeal, but many people do because the process is complex.

If you appeal, you should gather new medical records, get statements from your doctors about what you cannot do, and collect any other evidence that shows your condition is disabling. The stronger your medical evidence, the better your chances on appeal.

Working while you receive SSDI

You can work and still receive SSDI, as long as your earnings stay below a limit called the Substantial Gainful Activity (SGA) amount. In 2024, the SGA limit is $1,550 per month for non-blind individuals and $2,590 for blind individuals. These amounts change each year.

If you earn more than the SGA limit, Social Security will assume you are able to work and may stop your benefits. However, Social Security has work incentive programs that let you test your ability to work without losing benefits when ready. The most common is called the Trial Work Period, which lets you work for nine months without any earnings limit, as long as you report your work to Social Security.

After your Trial Work Period ends, you enter an Extended may be able to access Period where you can still receive benefits as long as you stay under the SGA limit. If you go over the limit, your benefits stop, but you can restart them later if your work does not last.

Frequently Asked Questions

Does SSDI end when I turn 65?

No, but your benefit changes. When you reach full retirement age (usually 66 or 67), your SSDI payment converts to a retirement benefit and the amount stays the same. You keep receiving the same monthly payment for the rest of your life.

Can I receive SSDI if I am still working part-time?

Yes, if your earnings are below the SGA limit and you report your work to Social Security. Many people work part-time while receiving SSDI during the Trial Work Period or Extended may be able to access Period. Tell Social Security about any work you do, even if you think it is below the limit.

What medical records do I need to have before I file?

You need records from a doctor who has examined you and knows your condition. These should include test results, diagnoses, and notes about your symptoms and limitations. If you have not seen a doctor recently, see one before you file — Social Security will ask for recent medical evidence, usually from the past three months.

How long does it take to get approved for SSDI?

The initial decision usually takes three to six months. If you are denied and appeal, reconsideration takes another two to three months. A hearing before a judge can take one to two years, depending on how busy the office is in your area.

Can I get SSDI if I have never worked?

No, SSDI requires a work history. If you have never worked or worked very little, you may be able to receive SSI instead, which does not require work credits. SSI is needs-based, so you must have low income and few assets to may have access to.