SSDI is a federal insurance program, not a needs-based benefit

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 disability, are blind, or have reached retirement age — but only if they have worked and paid Social Security taxes for a certain period. You do not have to be poor to receive SSDI. You do not have to pass a means test. The program is built on the same principle as unemployment insurance or workers' compensation: you paid in through payroll taxes while you worked, and the program pays out when you meet the conditions.

SSDI is different from Supplemental Security Income (SSI), which is a needs-based program for people with very low income and resources, regardless of work history. The two programs have different rules, different payment amounts, and different resource limits. This article focuses on SSDI.

Key Takeaways

  • SSDI requires you to have worked and paid Social Security taxes for a minimum number of quarters, which varies by age at the time you become disabled.
  • You must have a medical condition that is expected to last at least 12 months or result in death, and that prevents you from doing substantial work.
  • SSDI payments are based on your own earnings record, not on financial need, and the amount you receive depends on how much you earned while working.
  • Once approved for SSDI, you remain may be able to access as long as your condition meets the program's definition of disability and you report changes to the Social Security Administration.

How work credits connect to SSDI may be able to access

To receive SSDI, you must have earned enough work credits before you became disabled. A work credit is earned when you work and pay Social Security taxes. In 2024, you earn one work credit for each $1,730 of wages you earn, up to a maximum of four credits per year. The exact dollar amount changes each year, so the threshold will be different in future years.

The number of credits you need depends on your age when you become disabled. If you become disabled before age 24, you generally need six credits earned in the three years before you became disabled. If you become disabled between ages 24 and 31, you need credits equal to half the time between age 21 and the age you became disabled, with a minimum of six credits. If you become disabled at age 31 or older, you need 40 credits total, with at least 20 of those credits earned in the 10 years before you became disabled. This is why the Social Security Administration asks about your work history when you explore.

The medical definition of disability under SSDI

SSDI uses a specific definition of disability that is stricter than the everyday meaning of the word. You must have a medical condition that prevents you from doing substantial gainful activity — which means work that brings in more than a certain monthly amount. In 2024, substantial gainful activity is defined as earning more than $1,550 per month (or $2,590 if you are blind). The Social Security Administration updates this amount each year.

Your condition must also be expected to last at least 12 consecutive months or result in death. A temporary injury or illness, even a serious one, does not may have access to. The Social Security Administration has a list of conditions that automatically meet the disability standard if your medical records show you have that condition and it is severe enough. If your condition is not on the list, the Social Security Administration will evaluate whether your condition prevents you from doing any work you have done in the past 15 years, and whether you can do other work that exists in the national economy.

How SSDI payments are calculated

Your SSDI payment amount is based on your Primary Insurance Amount (PIA), which is calculated from your average earnings over your working years. The Social Security Administration uses a formula that weights your highest-earning years more heavily and applies bend points — thresholds where the replacement rate changes. This means that people who earned less during their working years receive a higher percentage of their average earnings as a benefit, while people who earned more receive a lower percentage.

You can see an estimate of your SSDI payment by creating an account on ssa.gov and viewing your Social Security Statement. The statement shows your earnings history and an estimate of what you would receive if you became disabled today. The actual payment you receive will be calculated based on your earnings record at the time you are approved, not at the time you explore.

What happens after you are approved for SSDI

Once the Social Security Administration approves your SSDI claim, you will receive a monthly payment. You are not required to report your income or resources to stay on SSDI the way you would with SSI, but you are required to report changes that affect your may be able to access. If you return to work, you must report your earnings. If your medical condition improves significantly, you should report that as well. The Social Security Administration has a Trial Work Period that allows you to test your ability to work without losing benefits, and a Plan to Achieve Self-Support (PASS) that lets you set aside income and resources for a work goal without affecting your SSDI payment.

You will also become may be able to access for Medicare after you have been on SSDI for 24 months. Medicare covers hospital insurance (Part A) and medical insurance (Part B), though you will pay a premium for Part B. This is different from SSI recipients, who become may be able to access for Medicaid based on financial need.

The difference between SSDI and SSI

SSDI and SSI are both programs run by the Social Security Administration, but they serve different populations and have different rules. SSDI is based on your work history and the taxes you paid. SSI is based on financial need — your income and resources must be below certain limits. SSDI has no resource limit; you can own a home, a car, and have savings without affecting your benefit. SSI has a resource limit of $2,000 for an individual and $3,000 for a couple (these amounts do not change year to year, though Congress can raise them).

SSDI payments are typically higher than SSI payments because they are based on your earnings record. SSI payments are the same for everyone in a given state (though some states add a small supplement). You can receive both SSDI and SSI at the same time if your SSDI payment is very low, but the SSI payment will be reduced by the amount of your SSDI payment.

How to learn about you have enough work credits

The fastest way to check your work credits is to create a my Social Security account at ssa.gov. Once you log in, you can view your earnings history and see how many work credits you have earned each year. The Social Security Administration counts credits based on your reported earnings, so if you have worked under different names or Social Security numbers, your credits may be split across multiple records. If you find errors in your earnings history, you can request a correction, but you generally must do so within three years, three months, and 15 days of the year the earnings were reported.

If you do not have enough work credits to may have access to for SSDI, you may still be able to receive SSI if your income and resources are low enough. You can also ask the Social Security Administration to evaluate your case based on your current work credits and tell you how many more you would need to may have access to.

Frequently Asked Questions

Can I get SSDI if I have never worked?

No. SSDI requires work credits earned through paid employment and Social Security tax contributions. If you have never worked, you may be able to receive SSI instead, which is based on financial need rather than work history. You would need to meet SSI's income and resource limits.

Does SSDI run out of money?

SSDI is funded by payroll taxes paid by current workers. The program's trust fund has a projected depletion date, but Congress can adjust the program before that happens. Even if the trust fund were depleted, incoming tax revenue would cover a portion of benefits. This is a policy question, not a reason to delay explore if you believe you are disabled.

What if I worked in another country?

Work credits are generally earned only through employment in the United States where you paid Social Security taxes. Some countries have agreements with the United States that allow work in those countries to count toward SSDI, but this varies by country. Contact the Social Security Administration directly if you have worked outside the United States.

Can my family members receive benefits on my SSDI record?

Yes. Your spouse, ex-spouse (if married at least 10 years), and unmarried children under age 19 (or 19 if still in high school) may be able to receive benefits based on your earnings record. Each family member's benefit is calculated as a percentage of your Primary Insurance Amount, and there is a family maximum — the total amount all family members can receive is usually 150 to 180 percent of your benefit.

What is the difference between SSDI and workers' compensation?

Workers' compensation is a state-run program that covers injuries or illnesses that happen at work or because of work. SSDI covers any disability, regardless of cause. You can receive both if you may have access to for both, though your SSDI payment may be reduced by a portion of your workers' compensation benefit in some cases.