SSDI is a federal insurance program for people who cannot work due to disability

SSDI stands for Social Security Disability Insurance. It is a program run by the Social Security Administration that pays monthly cash benefits to people who have a severe medical condition expected to last at least 12 months or result in death, and who have worked long enough to build up credits in the Social Security system.

The key word is "insurance." You do not receive SSDI because you are poor or because the government decides to help you. You receive it because you or a family member paid Social Security taxes while working, and those taxes funded an insurance pool. When you become disabled, you draw from that pool the same way you would draw from any insurance you had paid into.

This is different from Supplemental Security Income (SSI), which is a needs-based program for people with low income and few resources. SSDI is earnings-based; SSI is poverty-based. A person can receive both, but they are separate programs with separate rules.

Key Takeaways

  • SSDI requires that you have worked and paid Social Security taxes for a certain number of years before you became disabled.
  • Your medical condition must be severe enough to prevent you from doing any substantial work for at least 12 months or result in death.
  • The amount you receive each month is based on your own earnings record, not on how much money you have or need.
  • Once you have been on SSDI for 24 months, you become may be able to access for Medicare, even if you are under 65.
  • Family members such as spouses and children may also receive benefits based on your work record.

How work credits determine whether you can receive SSDI

To receive SSDI, you must have earned enough work credits before you became disabled. A work credit is a unit of credit you earn by paying Social Security taxes. In 2024, you earn one credit for every $1,705 of wages or self-employment income you report, up to a maximum of four credits per year.

The number of credits you need depends on your age when you became disabled. If you became disabled before age 24, you generally need six credits earned in the three years before you became disabled. If you became disabled between ages 24 and 31, you need credits equal to one for each year from age 21 to the year you became disabled. If you became disabled at 31 or older, you generally need 40 credits total, with at least 20 earned in the 10 years before you became disabled.

The Social Security Administration has a record of your work history and credits. You can view your own record by creating an account at ssa.gov. If you do not have enough credits, you cannot receive SSDI, though you may be able to receive SSI if you meet the income and resource limits.

What "severe medical condition" means under SSDI rules

SSDI does not pay for partial disability, temporary disability, or conditions that make work harder but not impossible. The Social Security Administration uses the term disability to mean a medical condition that prevents you from doing any substantial work.

"Substantial work" is defined as earning more than a certain amount per month. In 2024, that amount is $1,550 per month for non-blind individuals and $2,590 for blind individuals. If you earn more than that while on SSDI, your benefits will be reduced or stopped.

Your condition must also be expected to last at least 12 months or result in death. A broken leg that will heal in three months does not may have access to. A terminal illness expected to cause death within 12 months does may have access to. Conditions that come and go, like some mental health conditions, can may have access to if the evidence shows they are expected to last 12 months or longer.

The Social Security Administration maintains a list called the Blue Book that describes medical conditions that automatically meet the severity standard. If your condition is listed and your medical evidence matches the criteria, approval is faster. If your condition is not listed, the agency will still review your case, but the process takes longer.

How your monthly SSDI payment is calculated

Your SSDI payment is based on your Primary Insurance Amount (PIA), which is calculated from your lifetime earnings record. The higher your average earnings were during your working years, the higher your PIA and your monthly benefit.

The Social Security Administration does not look at your current financial need. A person who earned $200,000 per year receives a higher SSDI payment than a person who earned $30,000 per year, even if the second person is now in greater financial hardship. This is why SSDI is insurance, not welfare.

Your payment is reduced if you have other income. If you earn wages from work, your SSDI benefit is reduced by $1 for every $2 you earn above $1,550 per month (the substantial earnings level). If you receive a pension from work you did not pay Social Security taxes on—such as a government job—your SSDI may be reduced under the Government Pension Offset rule.

Family members who can receive benefits on your SSDI record

When you receive SSDI, certain family members may also receive monthly payments based on your work record. These are called auxiliary benefits. Your spouse can receive benefits at any age if they are caring for your child who is under 16, or at age 62 or older. Your ex-spouse can receive benefits at age 62 or older if you were married for at least 10 years.

Your unmarried children can receive benefits until age 18, or until age 19 if they are in high school full-time. A child age 18 or older can receive benefits if they became disabled before age 22 and remain disabled. Grandchildren and step-grandchildren may also may have access to under certain circumstances.

Each family member's benefit is a percentage of your PIA. The total amount paid to your entire family cannot exceed a family maximum, which is usually 150 to 180 percent of your own benefit. If multiple family members are receiving benefits, each person's share is reduced proportionally so the total does not exceed the maximum.

How SSDI connects to Medicare and work incentives

After you have been on SSDI for 24 months, you become may be able to access for Medicare, the federal health insurance program. This is true even if you are under 65. Medicare Part A (hospital insurance) is automatic; you must enroll in Medicare Part B (medical insurance) if you want it, though it is usually worth doing.

SSDI also includes work incentives that allow you to test your ability to work without when ready losing your benefits. The most common is the Trial Work Period, which lets you work and earn any amount for nine months without your benefits being affected. After the Trial Work Period ends, you enter the Extended may be able to access Period, during which your benefits continue as long as your earnings stay below the substantial earnings level.

If you return to work and your earnings exceed the substantial earnings level for nine months, your SSDI ends. However, you can request reinstatement within five years if you become unable to work again, without having to reapply from the beginning.

The difference between SSDI and SSI

SSDI and SSI are often confused because both are run by the Social Security Administration and both serve people with disabilities. The core difference is that SSDI is based on your work history and SSI is based on your financial need.

To receive SSDI, you must have worked and paid Social Security taxes. To receive SSI, you must have limited income and resources, regardless of whether you have ever worked. SSDI payments are based on your earnings record; SSI payments are the same for everyone in a given state (though the amount varies by state). SSDI has no resource limit; SSI limits your countable resources to $2,000 for an individual and $3,000 for a couple.

A person can receive both SSDI and SSI at the same time. This usually happens when someone's SSDI payment is very low because their earnings record was short or their earnings were low. The SSI program tops up the payment to the minimum level.

Frequently Asked Questions

Do I have to be completely unable to work to receive SSDI?

Yes. SSDI requires that your condition prevent you from doing any substantial work, which means earning more than $1,550 per month in 2024. You cannot work part-time or in a limited capacity and still receive SSDI. However, the Trial Work Period allows you to test your ability to work for nine months without losing benefits.

What if I did not work long enough to have enough credits?

If you do not have enough work credits, you cannot receive SSDI. You may be able to receive SSI instead if your income and resources are low enough. SSI does not require a work history. Contact your local Social Security office to find out which program you might may have access to for.

Can I receive SSDI if my condition is not on the Blue Book list?

Yes. The Blue Book lists conditions that automatically meet the severity standard, but conditions not on the list can still may have access to. The Social Security Administration will review your medical evidence and determine whether your condition prevents you from doing any substantial work. The review takes longer for conditions not on the list.

How much will I receive each month?

Your payment depends on your lifetime earnings record. The Social Security Administration calculates your Primary Insurance Amount based on your average earnings. You can estimate your benefit by creating an account at ssa.gov and viewing your earnings record, or by calling 1-800-772-1213.

What happens to my SSDI if I go back to work?

Your benefits continue during the nine-month Trial Work Period regardless of how much you earn. After that, your benefits are reduced by $1 for every $2 you earn above $1,550 per month. If you earn above the substantial earnings level for nine months, your SSDI ends, but you can request reinstatement within five years if you become unable to work again.