What SSDI Is and How It Works
Social Security Disability Insurance (SSDI) is a federal program that pays monthly cash benefits to people under full retirement age who have a medical condition expected to last at least 12 months or result in death. You do not need to be poor to receive it — SSDI is based on your own work history and the taxes you or a family member paid into Social Security, not on financial need.
The program works like this: if you worked and paid Social Security taxes, you built up "work credits." When a serious medical condition prevents you from working, you can use those credits to receive monthly payments. The amount you get depends on your earnings record, not on how much money you have in the bank right now.
SSDI is different from Supplemental Security Income (SSI), which is a needs-based program for people with low income and few resources. Both are run by the Social Security Administration, but they have separate rules about who can receive them and how much they pay.
Key Takeaways
- SSDI pays monthly benefits based on your work history and Social Security taxes you paid, not on your current income or savings.
- You must have a medical condition that prevents substantial work and is expected to last at least 12 months or result in death.
- You need enough work credits from your earnings record to be found insured for disability benefits.
- Family members — including spouses, ex-spouses, and children — may also receive benefits based on your work record.
- There is a five-month waiting period after your condition begins before SSDI payments start.
Who Can Receive SSDI
To receive SSDI, you must meet three requirements. First, you must have worked long enough and recently enough to have earned sufficient work credits. The number of credits you need depends on your age when your condition began, but most people need 40 credits total, with at least 20 earned in the 10 years before becoming disabled.
Second, your medical condition must be severe enough that it prevents you from doing substantial work. Social Security has a list of conditions that automatically meet this standard, but your condition does not have to be on that list — you can still receive benefits if medical evidence shows you cannot work.
Third, your condition must be expected to last at least 12 months or result in death. Short-term illnesses or injuries do not may have access to, even if they temporarily prevent you from working.
Family Members Who May Receive Benefits
If you are found to have a may have access to disability, your family members can receive benefits based on your work record. This includes your spouse at any age if they are caring for your child under 16, your spouse at age 62 or older, your ex-spouse at age 62 or older (if you were married at least 10 years), and your unmarried children under 19 (or up to 22 if they are full-time students).
Adult children with disabilities that began before age 22 can also receive benefits on your record for their entire lives. Each family member typically receives a separate monthly payment, though there is a family maximum — the total amount all family members can receive together is usually 150 to 180 percent of your benefit amount.
The Medical Review Process
When you contact Social Security about SSDI, you will need to provide medical evidence of your condition. This includes recent test results, doctor's notes, hospital records, and statements from your healthcare providers about what you can and cannot do physically or mentally.
Social Security will review your medical records and may ask you to see a doctor they choose for an examination. They may also contact your own doctors to ask detailed questions about your condition and your ability to work. This process typically takes three to six months, though it can take longer if your case is complex or if you need to provide additional information.
If Social Security denies your claim, you have the right to appeal. Most people who are initially denied eventually receive benefits after going through the appeals process, which is why many people work with a disability representative or attorney who specializes in SSDI cases.
How Much SSDI Pays
Your monthly SSDI payment is based on your lifetime earnings record. The Social Security Administration calculates your Primary Insurance Amount (PIA), which is the benefit you receive at your full retirement age. If you receive SSDI before retirement age, the payment amount is the same — it does not increase or decrease based on when you start receiving it.
The average SSDI payment varies by age and work history. You can see your own estimated benefit amount by creating a my Social Security account on the Social Security Administration website and viewing your earnings record. Your actual payment will be calculated once Social Security reviews your case.
If you return to work and earn above a certain amount (called the Substantial Gainful Activity level), your benefits may stop or be reduced. However, Social Security has work incentive programs that allow you to test your ability to work without when ready losing all your benefits.
Work Incentives and Returning to Work
SSDI includes programs designed to help you test whether you can return to work without losing your benefits when ready. The Trial Work Period allows you to work and earn any amount for nine months without affecting your benefits. After the Trial Work Period ends, you enter the Extended may be able to access Period, during which benefits continue if your earnings stay below the Substantial Gainful Activity level.
Other work incentives include Impairment Related Work Expenses (IRWE), which allows you to deduct certain disability-related costs from your earnings when calculating whether you have exceeded the work limit, and Plans to Achieve Self-Support (PASS), which lets you set aside income and resources for a specific work goal without affecting your benefits.
If you are interested in returning to work, contact your local Social Security office or ask to speak with a work incentives planning specialist. These specialists are available at no cost and can help you understand how work will affect your benefits.
How to Start the Process
You can begin the SSDI process by visiting your local Social Security office in person, calling 1-800-772-1213 (TTY 1-800-325-0778), or starting an process online through the Social Security Administration website. You will need your Social Security number, birth certificate, and medical records related to your condition.
Have your doctors' names, addresses, and phone numbers ready, as well as the dates of your medical visits and test results. If you worked recently, bring information about your job duties and the dates you worked. The more complete your information is at the start, the faster the process can move.
Many people find it helpful to work with a disability representative or attorney during the SSDI process. These professionals understand the medical and legal standards Social Security uses and can help you present your case effectively. You only pay them if you win your case, and the fee is set by Social Security (currently a maximum of 25 percent of your back pay, up to $7,200).
Frequently Asked Questions
Do I have to be completely unable to work to receive SSDI?
No. SSDI requires that your condition prevent you from doing substantial work, which Social Security defines as earning more than a certain monthly amount (currently $1,550 per month in 2024, though this changes yearly). You can have some ability to work and still receive benefits if your condition prevents you from earning at that level.
What happens to my SSDI if I reach retirement age?
Your SSDI benefits automatically convert to retirement benefits when you reach full retirement age. The payment amount stays the same — there is no increase or decrease at that point. You will straightforward receive the same monthly payment under the retirement program instead of the disability program.
Can I receive SSDI and workers' compensation at the same time?
You can receive both, but Social Security will reduce your SSDI payment if your combined benefits exceed a certain amount. The reduction is calculated based on your state's workers' compensation law and your specific situation. Contact Social Security to understand how your particular case would be affected.
How long does it take to get approved for SSDI?
Initial decisions typically take three to six months, though some cases take longer depending on how complex your medical condition is and how quickly your doctors respond to Social Security's requests for information. If you are denied and appeal, the timeline extends further — many appeals take one to two years or more to resolve.
What if my condition improves while I am receiving SSDI?
Social Security periodically reviews cases to see whether beneficiaries still meet the disability standard. If your condition improves enough that you can work, your benefits will stop. However, you have a grace period and can return to work for a limited time without when ready losing benefits, thanks to the work incentive programs described above.