The Two Things Social Security Checks First

Social Security does not ask whether you have a diagnosis. It asks whether your condition stops you from working at a substantial level, and whether that will last at least 12 months or result in death. Those are the only two medical gates that matter.

Substantial gainful activity (SGA) is the term Social Security uses for work that earns enough money. In 2024, SGA means earning $1,550 per month or more if you are not blind, or $2,590 per month or more if you are blind. If you earn less than that, Social Security will assume your condition is severe enough to prevent substantial work. If you earn more, Social Security will assume you can work and will deny you, regardless of your diagnosis.

The 12-month rule exists because Social Security is not a short-term program. Your condition must be expected to last at least one year continuously, or to end in death. A broken leg that heals in three months does not may have access to. A back injury expected to improve within a year does not may have access to. A terminal illness expected to end your life within months does may have access to.

Key Takeaways

  • Social Security measures disability by whether you can earn $1,550 per month (or $2,590 if blind), not by your diagnosis alone.
  • Your condition must be expected to last at least 12 months or result in death; temporary or improving conditions do not may have access to.
  • You must have earned enough work credits before your condition began, which usually means working five of the last ten years for SSDI.
  • Social Security will review your medical records, work history, and current earnings to decide whether you meet the definition of disability.
  • If you are still working, even part-time, you should report your earnings because they directly affect whether Social Security considers you disabled.

How Social Security Defines "Severe" Condition

A severe condition is one that significantly limits your ability to do basic work activities. Social Security does not require that you be unable to work at all—only that your condition prevents you from doing substantial gainful activity. This is a lower bar than total helplessness.

Social Security looks at what you can and cannot do physically and mentally. Can you sit, stand, walk, lift, carry, see, hear, remember instructions, concentrate, or interact with others? The agency compares your actual abilities to the demands of work that exists in the national economy. If your condition prevents you from meeting those demands, it is severe.

The agency uses a published list called the Blue Book that describes conditions and the medical evidence needed to prove severity. If your condition matches a Blue Book listing and your medical records show the required evidence, Social Security will find you disabled without asking whether you could do other work. If your condition does not match a listing, Social Security will assess your remaining work capacity and decide whether any jobs exist that you could perform.

Work Credits: The Earnings Requirement You Cannot Bypass

Having a severe condition is not enough. You must also have earned work credits through payroll taxes before your condition began. Work credits are the Social Security Administration's way of measuring whether you paid into the system long enough.

You earn one work credit for every $1,730 in wages you report to Social Security in 2024 (the amount changes yearly). You can earn a maximum of four credits per year. To receive SSDI, you generally need 40 credits total, with at least 20 of those credits earned in the 10 years before your condition began. For someone who becomes disabled at age 50, this usually means working five of the last ten years.

If you became disabled before age 24, the rules are looser—you may need only six credits earned in the three years before your condition began. If you are blind, you do not need to meet the recency requirement; you only need 40 credits total, earned at any point in your life.

Work credits do not expire once you earn them. If you worked steadily for ten years and then stopped, those credits remain on your record. Social Security will count them toward the 40-credit requirement, as long as you meet the recency rule for your age.

How Social Security Reviews Your Medical Evidence

Social Security will request your medical records from every doctor, hospital, clinic, and mental health provider you have seen. The agency looks for objective findings—test results, imaging, physical examination notes—rather than relying only on what you report about your symptoms.

You do not need to submit medical records yourself, though you can. Social Security will contact your providers directly. If you have not seen a doctor in months or years, Social Security may schedule you for a consultative examination with a doctor the agency chooses and pays. This examination is free to you, but it is Social Security's way of getting current medical evidence when your own records are old.

Social Security also weighs your credibility. If your medical records show you are working full-time but your process says you cannot work at all, the agency will notice the contradiction. If you report severe pain but your medical records show normal physical examination findings, Social Security may find your testimony less persuasive than the objective evidence.

Your Work History and Remaining Capacity

Social Security will review your entire work history—not just your most recent job. The agency wants to know what kinds of work you have done, how long you did each job, and why you stopped working. This history helps Social Security understand what skills you have and what demands you have handled in the past.

If your condition does not match a Blue Book listing, Social Security will assess your residual functional capacity (RFC)—the most you can still do despite your condition. Can you work full-time or only part-time? Can you do work that requires standing all day, or only sitting? Can you handle fast-paced work with important date, or do you need a slower environment?

Social Security then compares your RFC to the demands of your past work. If you cannot do the work you did before, the agency looks at whether other work exists in the national economy that you could do. If you are over 55, have limited education, and have done only physical labor, Social Security may find that no other work is available to you, even if your RFC is not zero.

Current Earnings and the SGA Threshold

If you are still working when you explore for SSDI, Social Security will measure your monthly earnings against the SGA threshold. The threshold is not based on the type of work or how hard you work—only on how much money you earn.

If you earn $1,550 or more per month (in 2024), Social Security will deny your claim or stop your benefits if you are already receiving them. If you earn less, Social Security will proceed with the medical review. Your earnings are reported through your tax return and W-2 forms, or through your own report if you are self-employed.

The SGA threshold changes every year because it is tied to the national average wage. Social Security publishes the new threshold each October for the following year. If you are working part-time and earning below the threshold, you should continue reporting your income accurately, because it affects how Social Security measures your disability.

What Happens After Social Security Decides You Are Disabled

If Social Security approves your claim, you will receive a notice stating your disability onset date—the date your condition began or the date you became unable to work, whichever is later. This date matters because it determines when your benefits start and how much you receive.

SSDI benefits do not begin when ready. There is a five-month waiting period after your onset date before your first check arrives. If your onset date was January 15, your first payment would arrive in June. During those five months, you receive no payment, even though you are approved.

Once you are receiving SSDI, Social Security will continue to monitor your earnings and your medical condition. If you return to work and earn above the SGA threshold, your benefits will stop. If your condition improves significantly, Social Security may schedule a medical review and potentially find you no longer disabled. You have the right to report changes in your condition or earnings, and Social Security has the right to request updated medical evidence at any time.

Frequently Asked Questions

Does Social Security have to use my doctor's opinion about whether I can work?

Social Security considers your doctor's opinion, but it is not required to follow it. The agency weighs your doctor's statement against your medical records, your work history, and other evidence. If your doctor says you cannot work but your medical records show you are working full-time, Social Security may find the records more persuasive. You can submit a detailed statement from your doctor about your functional limitations, and Social Security must consider it.

What if I have been out of work for several years and my work credits are old?

Work credits do not expire. If you worked five of the ten years before your condition began, you meet the recency requirement, even if you have not worked in years. Social Security will count those old credits toward your 40-credit total. The key is whether you meet the recency rule for your age at the time your condition began.

Can I be denied for SSDI if I do not have a diagnosis?

Social Security requires medical evidence of a condition, but the evidence does not have to be a formal diagnosis. If your medical records show objective findings—abnormal test results, imaging, or physical examination—that support a severe condition, Social Security can approve you even if doctors have not named a specific diagnosis. However, you must have seen a medical provider and have records to show.

What if my condition is getting better—does that disqualify me?

If your condition is expected to improve within 12 months, you do not meet the duration requirement and Social Security will deny you. However, if your condition is stable or slowly worsening, and you are not expected to improve substantially within 12 months, you can still may have access to. Social Security looks at your prognosis, not just your current status.

Do I have to stop working to get SSDI?

No. You can continue working as long as you earn less than the SGA threshold ($1,550 per month in 2024). If you earn more than that, Social Security will assume you can work and will deny your claim. If you are earning below the threshold, you can explore and Social Security will review your medical condition. Once approved, you can continue working below the threshold without losing benefits.