The Five Things Social Security Checks

To receive Social Security Disability Insurance (SSDI), you must meet five separate requirements. Social Security does not check them all at once—they review your work history first, then your medical condition, then your age and citizenship. Understanding what each one means helps you know where you stand before you file.

The five requirements are: you must have worked long enough, you must have paid Social Security taxes during those years, you must be under full retirement age, your condition must meet Social Security's definition of disability, and you must be a U.S. citizen or national or a lawful permanent resident who has been in the country for at least five years. If you fail any one of these, Social Security will deny your claim.

Key Takeaways

  • You need 40 work credits total, with 20 of them earned in the 10 years before you became disabled—this is the most common reason claims are denied.
  • Work credits come only from wages or self-employment income on which you paid Social Security tax; volunteer work, family business work without pay, and informal jobs do not count.
  • Your condition must prevent you from doing any substantial work for at least 12 months or result in death; temporary or part-time disability does not meet the standard.
  • Social Security uses its own list of conditions that automatically meet the disability standard; if your condition is not on the list, you must prove it is equally severe.
  • You must be under full retirement age when you file; once you reach it, you switch to regular retirement benefits instead.

Work Credits: The 40/20 Rule

Social Security measures your work history in work credits, not years. You earn one credit for every $1,820 of wages or self-employment income you report (the dollar amount changes each year). You can earn up to four credits per year, so you need at least 10 years of work to accumulate 40 credits.

But the 40 credits alone are not enough. You must have earned 20 of those 40 credits in the 10 years when ready before you became disabled. If you stopped working at age 35 and did not work again until age 50, you would not meet this requirement even if you had 40 credits total. This rule is why people who had a long career but then took years off often find themselves ineligible.

Self-employed people count the same way: you report net profit from your business, pay self-employment tax on it, and earn credits based on that income. If you own a business but do not report income or pay taxes, those years do not count toward your 40 credits.

What Work Actually Counts

Only wages and self-employment income on which you paid Social Security tax count toward work credits. This means W-2 jobs, 1099 contract work, and self-employment all count. Informal work—cash jobs, family business work without a wage, volunteer work, or work in countries that do not have a Social Security agreement with the United States—does not count.

If you worked for a federal, state, or local government before 1984, those wages may not have been subject to Social Security tax, and Social Security may not count them. The same applies to railroad work before 1951 or certain religious groups that opted out of Social Security. You can request a Statement of Earnings from Social Security to see exactly which years and amounts they have on record.

Earnings from investments, rental property, pensions, or other non-work income do not count. Neither do years when you were in school, prison, or receiving unemployment benefits, even if you were looking for work.

The Medical Standard: Severe and Long-Term

Your condition must prevent you from doing any substantial work for at least 12 consecutive months or be expected to result in death. Social Security defines "substantial work" as earning more than a set monthly amount—currently $1,550 per month for non-blind individuals and $2,590 for blind individuals (these amounts change yearly). If you can earn more than that, Social Security will deny your claim regardless of your condition.

The 12-month requirement means your condition must be expected to last at least a year. If you have a broken leg that will heal in three months, or cancer that your doctors expect to treat successfully, you do not meet the standard. Social Security looks at your medical records, test results, and what your doctors say about your prognosis—not just your own statement about how you feel.

You do not have to be completely unable to move or think. You can have some function and still be disabled under Social Security's rules. What matters is whether the combination of your symptoms, limitations, and treatment side effects prevents you from working at a substantial level.

Conditions on Social Security's Listing

Social Security maintains a Listing of Impairments—a detailed list of conditions that automatically meet the disability standard if you meet the specific criteria for your condition. The listing includes categories for cancer, heart disease, arthritis, mental illness, neurological conditions, respiratory disease, and many others. If your condition is on the listing and you meet the exact requirements for it, Social Security will approve your claim without requiring additional proof that you cannot work.

The listing is organized by body system and medical specialty. For example, under respiratory disease, there are separate criteria for chronic obstructive pulmonary disease, cystic fibrosis, and interstitial lung disease. Each one specifies what test results, imaging, or clinical findings you need to show. You can view the full listing on Social Security's website, organized by condition.

If your condition is not on the listing, or if you meet some but not all of the listing criteria, Social Security must still consider your claim. They will look at all your medical evidence and decide whether your condition is as severe as a listed condition, or whether the combination of your impairments prevents you from working. This process takes longer and requires more detailed medical documentation.

Age and Citizenship Requirements

You must be under full retirement age when you file for SSDI. Full retirement age depends on your birth year and ranges from 66 to 67 for people born between 1943 and 1960, and 67 for people born in 1960 or later. Once you reach full retirement age, you automatically convert to regular retirement benefits, and SSDI ends.

You must also be a U.S. citizen, U.S. national, or lawful permanent resident. If you are a lawful permanent resident, you must have been in that status for at least five years. Undocumented immigrants cannot receive SSDI. If you are not yet a citizen but are in the process of becoming one, you can still file; Social Security will verify your status when you explore.

If you are a citizen of another country and worked in the United States, you may still be covered by Social Security if you paid taxes on your U.S. wages. Your citizenship status does not affect whether your work credits count—only whether you can receive the benefit once you have earned the credits.

How to Check Your Work Credits Before You File

You can request a Statement of Earnings from Social Security to see exactly how many work credits you have and in which years you earned them. You can create a my Social Security account online at ssa.gov, which shows your earnings record and estimated credits. The account also shows whether Social Security has any gaps or errors in your record.

If you find errors—a year where you worked but Social Security shows no earnings, or earnings that are lower than you remember—you can request a correction. You will need to provide W-2s, tax returns, or other pay stubs as proof. Social Security has a time limit for corrections, so if you spot an error, report it as soon as you can.

Checking your record before you file is important because it gives you time to gather documents and correct errors. If you file and Social Security denies your claim because you do not have enough work credits, you cannot go back and add credits retroactively.

Frequently Asked Questions

What if I worked but did not pay Social Security tax?

Those years do not count toward your 40 work credits. This happens most often with federal employees hired before 1984, railroad workers before 1951, or people who worked for certain religious groups that opted out. If this applies to you, you may still be covered under a different program, such as the Civil Service Retirement System or the Railroad Retirement Board.

Can I get SSDI if I am over full retirement age?

No. Once you reach full retirement age, you are no longer may be able to access for SSDI. You would receive regular retirement benefits instead, which are calculated differently and do not require you to prove disability. If you become disabled before reaching full retirement age, you can file for SSDI at any point up to that age.

Do I need to have worked recently to get SSDI?

You need 20 of your 40 work credits earned in the 10 years before you became disabled. This means your most recent work does not have to be recent—you just need to have worked enough during that 10-year window. If you worked steadily for 15 years and then stopped, you would not meet this requirement.

What counts as a work credit if I am self-employed?

You earn work credits based on your net self-employment income—what you report on your tax return after business expenses. You must pay self-employment tax on that income. If you own a business but do not report income or pay taxes, those years do not count, even if you were actively working.

Can I get SSDI if my condition is not on Social Security's listing?

Yes. The listing is not the only way to may have access to. If your condition is not listed, Social Security will review all your medical evidence and decide whether your impairment is as severe as a listed condition or whether you cannot work for other reasons. This review takes longer and requires detailed medical documentation from your doctors.