How Many Work Credits Do You Need for SSDI?
2/22/2026 | 1 min read
How Many Work Credits Do You Need for SSDI?
Social Security Disability Insurance (SSDI) provides critical financial support to individuals who can no longer work due to a disabling medical condition. However, unlike Supplemental Security Income (SSI), which is need-based, SSDI requires applicants to have earned a sufficient number of work credits through prior employment. Understanding how many work credits you need is essential when determining your eligibility for SSDI benefits in Illinois.
Understanding Social Security Work Credits
Work credits are the foundation of SSDI eligibility. The Social Security Administration (SSA) uses work credits to determine whether you have worked long enough—and recently enough—to qualify for disability benefits. You earn work credits by paying Social Security taxes through your employment, whether as an employee or self-employed individual.
The number of work credits you can earn each year is limited. As of 2024, you earn one work credit for every $1,730 in wages or self-employment income, up to a maximum of four credits per year. This dollar amount adjusts annually for inflation. It is important to note that you cannot earn more than four credits in a single year, regardless of how much you earn.
The SSA tracks your work credits throughout your entire working career. These credits remain on your record even if you stop working or change employers. For SSDI purposes, the SSA evaluates both the total number of credits you have earned and how recently you earned them.
How Many Work Credits You Need for SSDI
The number of work credits required for SSDI eligibility depends primarily on your age when you become disabled. Generally, you need a total of 40 work credits to qualify for SSDI benefits, with 20 of those credits earned in the 10 years immediately before your disability began. However, younger workers may qualify with fewer credits.
Age-Based Requirements:
- Before age 24: You need six credits earned in the three-year period ending when your disability starts
- Age 24 to 31: You need credits for working half the time between age 21 and the time your disability begins
- Age 31 or older: You generally need 40 total credits, with 20 earned in the 10 years immediately before your disability onset
For example, if you become disabled at age 45, you would typically need 40 total work credits, with at least 20 of those earned between ages 35 and 45. This "recent work" requirement ensures that SSDI benefits go to individuals who have maintained a consistent connection to the workforce.
Special Considerations for Illinois Residents
While work credit requirements are federally mandated and apply uniformly across all states, Illinois residents face certain unique considerations when applying for SSDI benefits. The SSA processes Illinois SSDI applications through various field offices located throughout the state, including Chicago, Springfield, Rockford, and other cities.
Illinois applicants should be aware that processing times can vary depending on which office handles their claim and the current backlog at that location. Additionally, if your initial application is denied and you need to appeal to an Administrative Law Judge, you may experience different wait times depending on whether your hearing is scheduled in Chicago, Orland Park, or other hearing office locations in Illinois.
Illinois workers should also understand that certain types of employment may affect their work credit calculation. For instance, some state and local government employees in Illinois who do not pay into Social Security may not earn work credits through that employment. Instead, they may be covered by alternative retirement systems such as the Illinois Municipal Retirement Fund (IMRF) or other public pension systems.
What Happens If You Don't Have Enough Work Credits
If you do not have sufficient work credits for SSDI, you may still have options for receiving disability benefits. The most common alternative is Supplemental Security Income (SSI), a need-based program that does not require work credits but does have strict income and asset limitations.
To qualify for SSI in Illinois, you must meet the same medical disability criteria as SSDI, but you must also demonstrate limited income and resources. As of 2024, your countable resources cannot exceed $2,000 for an individual or $3,000 for a couple. Income limits vary based on your living situation and other factors.
Some individuals may qualify for both SSDI and SSI simultaneously if their SSDI benefit amount is low enough. This is known as concurrent benefits and can provide additional financial support to disabled individuals with limited work histories or low lifetime earnings.
Another option for those who lack sufficient work credits is to explore derivative benefits. In some cases, you may qualify for benefits based on a spouse's or parent's work record, depending on your age and circumstances.
Protecting Your Work Credits and SSDI Eligibility
Understanding work credits is crucial for protecting your future eligibility for SSDI benefits. If you are currently working but experiencing health problems that may eventually prevent you from working, it is important to continue earning work credits while you can. Each quarter of covered employment strengthens your eligibility for future benefits.
Keep detailed records of your employment history, including W-2 forms and tax returns. You can also create a "my Social Security" account on the SSA website to review your work credit history and verify that your earnings have been properly recorded. Errors in your earnings record could potentially affect your SSDI eligibility, so it is wise to check your statement regularly and report any discrepancies immediately.
If you are approaching the point where you may need to stop working due to disability, consult with an experienced disability attorney before leaving your job. The timing of when you stop working can affect both your work credit status and your disability onset date, which in turn affects your eligibility and benefit amount.
For self-employed individuals in Illinois, ensuring that you properly report your income and pay self-employment taxes is essential for earning work credits. Some self-employed workers mistakenly underreport income to reduce tax liability, not realizing they are simultaneously reducing their future SSDI eligibility.
Need Help? If you have questions about your case, call or text 833-657-4812 for a free consultation with an experienced attorney.
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