SSDI vs. SSI: What's the Difference
SSDI vs. SSI: What's the Difference?
If you're considering applying for Social Security disability benefits, you may have come across the terms SSDI and SSI. While both programs provide benefits to individuals with disabilities, they have different eligibility requirements and are designed to serve different populations.
Understanding the differences between Social Security Disability Insurance (SSDI) and Supplemental Security Income (SSI) can help you determine which program may apply to your situation. At Eliot Levine & Associates, we help clients throughout Suffolk County, NY, navigate the Social Security disability system and pursue the benefits they need.
Understanding SSDI
Social Security Disability Insurance (SSDI) is a program for individuals who have worked and paid Social Security taxes through their employment. SSDI benefits are funded through payroll tax contributions made during your working years.
To qualify for SSDI, you generally must:
- Have a qualifying disability
- Meet Social Security's definition of disability
- Have earned enough work credits through employment
- Be unable to perform substantial gainful activity
Because SSDI is tied to your work history, the amount of your monthly benefit is generally based on your past earnings.
Understanding SSI
Supplemental Security Income (SSI) is a needs-based program designed for individuals with disabilities who have limited income and resources. Unlike SSDI, SSI eligibility is not dependent on your work history.
To qualify for SSI, applicants generally must:
- Have a qualifying disability
- Meet income and resource limitations
- Be a U.S. citizen or otherwise meet eligibility requirements
- Satisfy Social Security's disability criteria
SSI is intended to provide financial assistance to individuals who may not have worked long enough to qualify for SSDI or who have limited means of support.
Key Differences Between SSDI and SSI
While both programs provide benefits for disabled individuals, there are several important distinctions.
Work History Requirements
SSDI
- Requires sufficient work credits earned through employment
- Based on payroll tax contributions
- Designed for workers who become disabled
SSI
- Does not require a work history
- Based on financial need
- Available to eligible individuals with limited income and resources
Benefit Amounts
SSDI
- Benefit amounts vary based on your earnings record and work history
- Individuals with higher lifetime earnings may receive higher monthly benefits
SSI
- Benefit amounts are generally based on federal and state limits
- Income and assets can affect the amount received
Health Insurance Eligibility
SSDI
- Eligible recipients may qualify for Medicare after meeting applicable waiting requirements
SSI
- Recipients are often eligible for Medicaid, depending on federal and state guidelines
Financial Eligibility
SSDI
- Not based on financial need
- Work history is the primary eligibility factor in addition to disability requirements
SSI
- Strict income and resource limits apply
- Financial circumstances play a major role in eligibility
Can You Receive Both SSDI and SSI?
In some situations, individuals may qualify for both SSDI and SSI benefits simultaneously. This is sometimes referred to as receiving "concurrent benefits."
For example, a person may qualify for SSDI based on work history but receive a relatively low monthly benefit. If they also meet SSI's financial requirements, they may be eligible for additional assistance through SSI.
Determining eligibility for concurrent benefits can be complicated and often requires a careful review of your financial and employment history.
How a Disability Lawyer Can Help
Whether you're applying for SSDI, SSI, or both, the application process can be complex. Missing documentation, incomplete medical records, or errors on your application can lead to delays or denials.
At Eliot Levine & Associates, we help clients:
- Determine which program may apply to their situation
- Evaluate SSDI and SSI eligibility requirements
- Gather medical records and supporting evidence
- Prepare and file disability applications
- Respond to Social Security requests for information
- Appeal denied claims
- Represent clients during disability hearings
Our focused experience in Social Security disability law allows us to identify potential issues early and build the strongest possible case.
Contact us today to schedule a consultation and learn how we can help you pursue Social Security disability benefits.



