What is the difference between SSI and SSDI?

What is the difference between SSI and SSDI?

By Hogan Smith

Updated 02/13/2025


When considering Social Security disability benefits, it's essential to understand the differences between SSI (Supplemental Security Income) and SSDI (Social Security Disability Insurance). Both programs provide financial assistance to individuals with disabilities, but they have different eligibility requirements, funding sources, and benefit amounts. Let’s break down the key distinctions between the two.

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Definition and Purpose

  • SSI (Supplemental Security Income):
    SSI
    is a federal program that provides financial assistance to individuals with disabilities or limited income and resources. Unlike SSDI, SSI is not based on your work history but rather on your financial need.


  • SSDI (Social Security Disability Insurance):
    SSDI
    provides benefits to individuals who have worked and paid into Social Security for a certain number of years but are now unable to work due to a disability. SSDI is an insurance program funded by the Social Security taxes you’ve paid during your working years.


Eligibility Requirements

  • SSI Eligibility:
    To qualify for
    SSI, you must meet the following requirements:
  • Be 65 or older, or blind, or have a disability.
  • Have limited income and resources (e.g., limited savings, assets, or income from work or other sources).
  • Have little or no work history.


  • SSDI Eligibility:
    To qualify for
    SSDI, you must:
  • Have worked and paid Social Security taxes for a sufficient number of years.
  • Have a disability that prevents you from working, and the disability must last for at least 12 months or be expected to result in death.
  • Be under the Social Security earnings limit for substantial gainful activity.


Financial Need vs. Work History

  • SSI:
    SSI
    is a need-based program, meaning it primarily focuses on your financial situation. It does not require a work history but instead evaluates your income and assets. If you have limited resources, SSI may be an option for you.


  • SSDI:
    SSDI
    , on the other hand, is based on your work history. You must have worked a certain number of years and paid Social Security taxes during your employment. The amount of SSDI benefits you are eligible for is also based on your past earnings.


Benefit Amounts

  • SSI:
    The benefit amount for
    SSI is based on the Federal Benefit Rate (FBR), which is adjusted each year. It is usually lower than SSDI benefits and may be reduced if you have other sources of income.


  • SSDI:
    SSDI
    benefits are calculated based on your average lifetime earnings. The more you’ve earned and paid into Social Security, the higher your SSDI benefits will be. The maximum SSDI benefit is determined by your work history and contributions to the Social Security system.


Funding Source

  • SSI:
    SSI
    is funded through general tax revenue, which includes income taxes and other federal revenues. It is not linked to your work history, meaning it is funded by taxpayer dollars, regardless of your past earnings.


  • SSDI:
    SSDI
    is funded through payroll taxes paid by workers and their employers. If you’ve worked and paid Social Security taxes (FICA), you’ve contributed to the SSDI program. Your eligibility and benefit amounts depend on your prior contributions.


Impact of Work and Earnings

  • SSI:
    With
    SSI, your eligibility is affected by any income or assets you have. If you start earning money from work, it can reduce or eliminate your SSI benefits. There are strict limits on how much you can earn while receiving SSI benefits.


  • SSDI:
    SSDI
    has a work threshold known as Substantial Gainful Activity (SGA). If you earn more than a certain amount, your SSDI benefits may be stopped. However, you can still receive SSDI if you return to work and earn below the SGA limit. Also, after receiving SSDI for a certain period, you may qualify for work incentives like the Ticket to Work program.


Medicaid vs. Medicare

  • SSI:
    SSI
    recipients automatically qualify for Medicaid, a health insurance program that covers medical costs for low-income individuals, including those with disabilities. Medicaid eligibility in Utah (and other states) is typically tied to your SSI status.


  • SSDI:
    SSDI
    recipients typically qualify for Medicare after 24 months of receiving benefits, regardless of their age. Medicare provides health coverage for individuals over 65 and those with disabilities.


Applying for SSI and SSDI

  • SSI Application:
    To apply for
    SSI, you can visit the Social Security Administration’s website (www.ssa.gov) or apply in person at a local SSA office. You will need to provide proof of your income, resources, and disability.


  • SSDI Application:
    To apply for
    SSDI, you also need to apply through the SSA’s website or in person. You will need to provide your work history, income, and medical documentation regarding your disability.

How Hogan Smith Can Help You

If you are unsure which program is best for you—SSI or SSDI—working with an experienced disability advocate or attorney can help. At Hogan Smith, we assist individuals with:


  • Assessing Eligibility: We help determine which program suits your specific needs based on your work history, income, and medical condition.
  • Navigating the Application Process: We guide you through the application process for both SSI and SSDI and help you gather the necessary documentation.
  • Appealing Denials: If your claim is denied, we represent you through the appeals process to increase your chances of success.

Contact Hogan Smith Today!

Whether you are applying for SSI or SSDI, the process can be complicated and time-consuming. Let Hogan Smith help you navigate the application process and secure the benefits you deserve. Contact us today for a free consultation, and we’ll ensure you’re on the right track.


Further Reading

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Updated February 10, 2025

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Updated February 10, 2025

A black and white icon of a newspaper on a white background.

Updated February 10, 2025

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