The Five Things Social Security Checks

To receive SSDI, you must meet all five of these conditions at the same time. Social Security does not weigh them against each other — you cannot be "mostly" disabled or have "almost enough" work credits. The agency checks each one in order, and if you fail any single test, your claim is denied.

The five criteria are: you have earned enough work credits; you have been disabled (or blind, or a child of a disabled worker) for at least 12 months or expect to die from your condition; your medical records show a condition that meets or equals the Social Security definition of disability; you are not working above the substantial gainful activity level; and you are a U.S. citizen or lawful permanent resident (with narrow exceptions for certain visa holders).

This section walks through each one and explains what "meets" actually means in practice, because the language Social Security uses is often narrower than what people expect.

Key Takeaways

  • You must have earned work credits in recent years — usually 20 in the last 10 years for adults under 62 — and this is checked first and automatically.
  • Your condition must be expected to last at least 12 months or result in death; temporary or short-term conditions do not count, even if severe.
  • Your medical records must show a condition that matches one on Social Security's official list of disabling conditions, or evidence that your condition is equally severe.
  • You cannot be working and earning more than about $1,550 per month (2024 figure, adjusted yearly); this is called substantial gainful activity and is checked against your actual work history.
  • Citizenship or lawful permanent resident status is required, with very limited exceptions for certain visa categories and refugees.

Work Credits: The Threshold You Must Cross First

Social Security counts work credits, not years of work. You earn one credit for each $1,730 of wages you report (2024 amount; this changes yearly). You can earn a maximum of four credits per year, regardless of how much you earn. Most people who work full-time earn four credits per year.

For SSDI, you typically need 20 credits earned in the 10 years before you became disabled. If you became disabled at age 30, you would need 20 credits in the 10 years between age 20 and 30. If you became disabled at age 50, you would need 20 credits in the 10 years between age 40 and 50.

Younger workers have a lower requirement. If you are under 24 and become disabled, you need only six credits earned in the three years before disability began. Between ages 24 and 31, the requirement rises gradually. Social Security has a chart showing the exact number for each age.

Self-employment income counts toward work credits the same way W-2 wages do. If you reported self-employment tax, those earnings count. If you did not report them, they do not — Social Security has no other way to verify them.

Duration: The 12-Month Rule and Terminal Conditions

Your condition must be expected to last at least 12 consecutive months, or it must be expected to result in death. This is a hard rule. A condition that will improve within 12 months, even if it is severe right now, does not count.

Social Security uses the word "expected" deliberately. You do not have to wait 12 months to explore — you can explore as soon as your doctor says the condition will last that long. But the agency will ask your doctor to state, in writing, that the condition is expected to continue for at least 12 months. If your doctor says "I do not know" or "it might improve," your claim will be denied at this stage.

Terminal conditions (conditions expected to cause death) are treated differently. If you have a condition that your doctor says will result in death within a few months, you do not need to wait or prove a 12-month duration. You can be approved based on the terminal diagnosis alone, and the process is usually faster.

Medical Listing: Matching the Official Definition of Disability

Social Security publishes the Blue Book, an official list of conditions that are considered disabling. It covers conditions in body systems: musculoskeletal, special senses and speech, respiratory, cardiovascular, digestive, genitourinary, hematological, skin, endocrine, neurological, mental disorders, neoplastic diseases (cancer), and immune system disorders.

To "meet a listing," your medical records must show that your condition matches one of these diagnoses and that you have the specific test results, imaging, or clinical findings the listing requires. For example, the listing for rheumatoid arthritis requires both a diagnosis and specific lab results (positive rheumatoid factor or anti-CCP antibody) plus evidence of joint damage on imaging. Having the diagnosis alone is not enough.

If your condition does not match a listing exactly, Social Security can still approve you if your condition is "equal in severity" to a listing. This is called "medical equivalence." To show equivalence, your medical records must document findings that are as serious as those required by the closest listing. This is harder to prove and requires detailed medical evidence.

You do not have to meet a listing to be approved. Social Security can also approve you through a process called "residual functional capacity," which looks at what you can still do physically and mentally, even if your condition does not match an official listing. But the medical listing route is more straightforward because the criteria are published and clear.

Work Activity: The Substantial Gainful Activity Test

You cannot be working and earning more than the substantial gainful activity (SGA) amount. For 2024, SGA is about $1,550 per month for non-blind workers and $2,590 for blind workers. These amounts change every year. If you are earning more than SGA, Social Security will deny your claim, even if you meet all other criteria.

The SGA test looks at your actual earnings, not your job title or what you are supposed to be paid. If you work part-time or earn below the SGA threshold, you can still be approved. If you are self-employed, Social Security looks at your net profit (income minus business expenses).

There is a difference between being denied because you are working above SGA and being denied because you are not disabled. If you are working above SGA, Social Security will not even review your medical evidence — the claim is denied on work activity alone. This is why it matters when you file: if you stop working before you explore, you remove this barrier.

Citizenship and Immigration Status

You must be a U.S. citizen or a lawful permanent resident (green card holder) to receive SSDI. There are narrow exceptions for certain visa holders, including refugees, asylees, and some other protected statuses, but these exceptions are limited and have time restrictions.

If you are in the United States on a work visa, student visa, or temporary status, you do not meet this criterion. Social Security will ask for proof of status — usually a green card, passport with admission stamp, or I-94 form. If you cannot provide it, your claim will be denied on this basis alone.

This criterion is checked late in the process, after medical review. If you are not a citizen or permanent resident, you can still file and go through the medical review, but you will ultimately be denied if your status does not meet the requirement.

How Social Security Reviews These Criteria in Order

Social Security does not review these five criteria in the order listed above. Instead, it checks them in this sequence: work credits first (automatic, takes minutes), then citizenship and immigration status (checked against your process), then work activity (checked against your reported earnings), then duration and medical evidence (the longest part, usually weeks or months).

If you fail at any stage, your claim stops there. For example, if you do not have enough work credits, Social Security will not order medical records or review your condition — the claim is denied for insufficient credits. If you are working above SGA, the agency will not review your medical evidence — the claim is denied for work activity. This is why understanding which criterion you might fail on is important before you file.

Frequently Asked Questions

Can I be approved for SSDI if my condition might improve within 12 months?

No. Social Security requires that your condition be expected to last at least 12 months or result in death. If your doctor believes your condition might improve within that time, even if it is severe now, you will be denied. You can reapply later if the condition does not improve as expected.

What if I have a condition that is on the Blue Book but my test results do not match exactly?

You may still be approved through medical equivalence if your medical records show findings as serious as those required by the listing. You can also be approved through residual functional capacity, which looks at what you can do despite your condition. Both routes require detailed medical evidence and are often harder to prove than meeting a listing exactly.

Does Social Security count self-employment income toward work credits?

Yes, if you reported self-employment tax. Social Security uses your Schedule C (self-employment income and loss) to count credits. If you did not report self-employment income on your taxes, Social Security has no record of it and cannot count it toward your work credit requirement.

What happens if I am working above the SGA amount when I file?

Your claim will be denied based on work activity alone. Social Security will not review your medical records. You can reapply after you stop working or reduce your earnings below SGA, and your medical evidence will then be reviewed.

Can I get SSDI if I am on a work visa?

No. You must be a U.S. citizen or lawful permanent resident. Temporary visa holders, including those on H-1B, L-1, or student visas, do not meet the citizenship requirement and will be denied. Refugees and asylees have limited exceptions, but these have time restrictions and specific rules.