When applying for Social Security Disability Insurance (SSDI), your work history plays a bigger role than you may expect. Understanding how the Social Security Administration (SSA) evaluates your past experience can help you prepare a stronger application.

What you need to know about work credits

Before the SSA reviews your medical records, it first checks whether you have earned enough work credits to qualify for SSDI. This is how work credits work:

• You earn one credit for every $1,890 in wages or self-employment income in 2026
• You can earn a maximum of four credits per year
• You need a total number of credits that depends on your age, with younger workers requiring fewer than the standard 40
• You generally must earn at least 20 credits in the 10 years before your disability, though exceptions exist for workers under age 31

If you do not have enough credits, you will not qualify for SSDI regardless of your medical condition. However, you may still be eligible for Supplemental Security Income, which does not require work credits.

How the SSA evaluates your past work

Once you meet the work credit requirement, the SSA reviews your medical condition. If you do not qualify automatically under a specific medical listing, the agency then examines your job history to see if you can still do your previous work.

Under a rule that took effect in June 2024, the SSA now reviews only the past five years of your employment history. This update simplifies the application process and recognizes that older work experience may not reflect your current abilities.

How your earnings history shapes your benefit amount

Your work history does not just determine if you can qualify or not. It also directly affects how much you will receive each month if approved.

The SSA calculates your benefit using a formula based on your Average Indexed Monthly Earnings. This figure represents your highest-earning years adjusted for inflation.

The SSA calculates your average earnings based on the number of years you could have worked, which depends on your age. Unlike retirement benefits, you are not penalized for having a work history shorter than 35 years if you are a younger worker.

Why accurate job descriptions matter for your claim

When you apply for SSDI, you will complete a Work History Report that describes each job you held during the past five years. The details you provide on this form carry significant weight in the decision-making process.

The SSA uses your job descriptions to assess whether your disability prevents you from returning to past work. If you describe a job as primarily desk work when it actually required heavy lifting, the examiner might conclude you can still perform that role.

Attorneys are able to assist with articulating how your medical condition affects your ability to perform specific job tasks. Legal counsel can also review your earnings record for errors and help your Work History Report reflect the true nature of your employment.