SSDI looks at five things, and you must meet all of them

Social Security Disability Insurance (SSDI) is not a single test you pass or fail. Instead, Social Security reviews your work history, your current medical condition, your age, your earnings, and whether you have already received benefits under a different program. You must meet all five requirements at the same time. If you fall short on even one, you will not receive SSDI, no matter how strong you are on the others.

This guide explains what Social Security actually looks for when it reviews your claim. Understanding these five requirements before you contact Social Security can help you gather the right documents and know what to expect.

Key Takeaways

  • You must have worked long enough and recently enough to have earned enough Social Security credits, which you accumulate by paying payroll taxes.
  • Your medical condition must be severe enough that you cannot work at any job, not just your old job, and the condition must last at least 12 months or result in death.
  • Social Security has a list of conditions that automatically meet the severity standard; if your condition is on that list and you have the medical evidence, the review moves faster.
  • You cannot be receiving certain other benefits at the same time, such as workers' compensation or retirement benefits from another country's government.
  • Your current monthly earnings must be below a set amount (in 2024, $1,550 for most people), though this limit changes each year.

Work history: How many credits you need and how you earn them

Social Security measures your work history in credits, not years. You earn one credit for every $1,730 in wages you pay Social Security taxes on (this dollar amount changes each year). You can earn up to four credits per year, which means you need about $6,920 in annual earnings to max out your credits for that year.

To receive SSDI, you generally need 40 credits total, and at least 20 of those credits must have come from work in the 10 years before you became disabled. If you became disabled before age 24, the rules are looser—you may need as few as 6 credits earned in the 3 years before you became disabled. If you became disabled between ages 24 and 31, you need credits for half the time between age 21 and the time you became disabled.

You can check your own work history by creating an account at ssa.gov and viewing your Social Security Statement. This statement shows exactly how many credits you have earned and when. If you see errors, you can contact Social Security to correct them, though you will need pay stubs or tax records as proof.

Medical condition: Severity and duration are both required

Social Security defines disability as a medical condition that prevents you from doing any substantial work for at least 12 consecutive months, or a condition that is expected to result in death. "Substantial work" means earning more than a certain amount per month—in 2024, that threshold is $1,550 for most people and $4,096 for people who are blind. The key word is any work: Social Security does not care if you cannot do your old job; it only cares whether you can do any job that exists.

Your condition does not have to be permanent, but it must be expected to last at least a year. If you have a condition that will improve within a year, you do not meet this requirement. Social Security will ask you to return for a medical review after a set period (usually one to three years) to confirm your condition has not improved enough for you to work.

Social Security maintains a list called the Blue Book, which describes conditions that are considered severe enough to prevent any work. If your condition is listed in the Blue Book and you have the medical evidence to match it, Social Security can approve your claim without extensive review. The Blue Book is searchable by condition name at ssa.gov/disability/bluebook. However, having a condition on the Blue Book does not may provide approval—you still need medical records that show your condition matches the description.

Medical evidence: What documents Social Security needs

Social Security will not take your word for your condition. You must provide medical records from a doctor, hospital, clinic, or other medical provider who has examined you or treated you. These records should include test results, imaging (such as X-rays or MRI scans), lab work, and notes from your doctor about your symptoms and how they limit your ability to work.

If you do not have recent medical records, Social Security may refer you to a doctor they choose and pay for the examination. However, this examination is not a may provide of approval—it is straightforward a way for Social Security to gather the information it needs to make a decision. You can also submit records from your own doctors alongside any examination Social Security arranges.

The stronger your medical evidence, the faster your claim typically moves. Records from specialists (such as a cardiologist for heart disease or a rheumatologist for arthritis) carry more weight than records from a general practitioner. If you have been hospitalized, had surgery, or received ongoing treatment, gather those records before you contact Social Security.

Age and other benefits: Restrictions that can disqualify you

You must be under full retirement age to receive SSDI. Full retirement age depends on your birth year and ranges from 66 to 67 for most people born after 1954. Once you reach full retirement age, SSDI automatically converts to retirement benefits, and the amount you receive may change.

You cannot receive SSDI if you are already receiving workers' compensation or public disability benefits from your state. You also cannot receive SSDI if you are receiving a government pension based on work you did that was not covered by Social Security (such as work for certain federal, state, or local governments). Some people who receive Supplemental Security Income (SSI) can also receive SSDI if they meet the work history requirement, but the two programs have different rules about how much money you can have.

If you are receiving benefits from another country's government—such as a disability pension from a foreign military or government job—Social Security will reduce your SSDI payment by the amount of that foreign benefit. This is called the Government Pension Offset.

Current earnings: The monthly limit that changes each year

Even if you meet all the other requirements, you cannot be earning more than a set amount per month. In 2024, that limit is $1,550 per month for most people and $4,096 per month for people who are blind. These amounts increase each year based on inflation.

"Earnings" means money you receive from work—either as an employee or as self-employed income. It does not include money from investments, pensions, rental property, or other sources. If you are self-employed, Social Security counts your net profit (income minus business expenses) as earnings.

If you are currently earning above these limits, you will not be approved for SSDI. However, if you stop working or reduce your earnings below the limit, you can reapply. Social Security will look at your earnings in the month you explore and the months when ready before, so timing matters if you are close to the threshold.

The review process: What happens after you provide your information

After you submit your information to Social Security, a disability examiner will review your work history, medical records, and current earnings. This process typically takes three to six months, though it can take longer if Social Security needs additional medical records or if they request an examination by a doctor they choose.

Social Security will send you a letter with their decision. If they approve your claim, the letter will explain when your benefits begin and how much you will receive each month. If they deny your claim, the letter will explain which requirement you did not meet. You then have 60 days to request reconsideration, which means Social Security will review your claim again with any new information you provide.

If reconsideration is also denied, you can request a hearing before an administrative law judge. At this stage, you can present your case in person or by phone and bring witnesses or a representative. Many people hire a lawyer or advocate at this stage, and the lawyer's fee is paid from your back pay if you win.

Frequently Asked Questions

Can I work part-time and still receive SSDI?

Only if your earnings stay below the monthly limit. In 2024, that is $1,550 per month for most people. If you earn more than that in any month, Social Security may reduce or stop your benefits for that month. Some people work a few hours a week and stay under the limit, but you need to track your earnings carefully.

What if my condition is not on the Blue Book?

Social Security can still approve your claim. The Blue Book is a shortcut for conditions that clearly meet the severity standard, but Social Security also reviews conditions not on the list. You will need strong medical evidence showing your condition prevents you from doing any work, but approval is possible without being on the Blue Book.

How far back does Social Security look at my work history?

Social Security looks at your entire work history to count your total credits, but for SSDI specifically, at least 20 of your 40 credits must come from the 10 years before you became disabled. If you worked steadily for many years and then became disabled, you likely have enough credits even if you have not worked recently.

Do I need a lawyer to explore for SSDI?

No. You can explore on your own by visiting your local Social Security office, calling 1-800-772-1213, or explore online at ssa.gov. However, if your claim is denied and you request a hearing, many people find a lawyer or advocate helpful because the hearing process is more formal and the approval rate is higher with representation.

What happens to my SSDI when I turn full retirement age?

Your SSDI automatically converts to retirement benefits. The amount you receive may stay the same or change slightly, depending on how your benefit was calculated. Social Security will send you a letter explaining the change before it happens.