There are certain topics of conversation that come up often with special needs parents. One of those is the complicated intersection of Supplemental Security Income (SSI) and Social Security Disability Insurance (SSDI). What are the differences? Why do I get multiple checks? While both programs provide income for individuals with disabilities, they are fundamentally different, with varying planning considerations, especially when it comes to preserving Medicaid eligibility. Let’s break them down.
Supplemental Security Income (SSI)
SSI is a needs-based federal benefit designed for individuals with disabilities who have limited income and resources. The program is funded through the U.S. Treasury's general tax revenues, and in 2026 the federal maximum SSI benefit is $994 per month. Key eligibility criteria for SSI include:
An asset limit: $2,000 in an individual’s name.
Work rules: Eligibility is based on the Social Security Administration's definition of disability, including an inability to engage in Substantial Gainful Activity (SGA). In 2026, the SGA earnings threshold for most individuals with disabilities is $1,690 per month.
There is no age requirement for SSI; however, a minor is subject to household income and asset thresholds with their parents or guardians, which likely makes them ineligible until they are 18.
Social Security Disability Insurance (SSDI)
SSDI is an insurance program, not a needs-based program. Benefits are paid from the Social Security Disability Insurance Trust Fund, which is funded through FICA payroll taxes paid by workers and employers. Eligibility criteria for SSDI includes:
Like SSI, individuals must meet the definition of disability from the Social Security Administration.
Individuals qualify by earning sufficient work credits or by qualifying as a Disabled Adult Child (DAC) on a parent's Social Security record.
There is no asset limit for SSDI, and there is no earned income limit because SSDI eligibility is based on an individual's insured status (did they pay into the program) rather than financial need.
Why Do I Receive Multiple Checks?
One of the most common questions I hear from families is, "Why am I receiving multiple checks from the federal government for a disabled individual?"
Sometimes it's SSI and SSDI. Other times, it's two SSDI checks or what appears to be two payments from Social Security. Confusing right?
The good news is that receiving multiple checks is completely normal. They may simply be coming from different benefit programs or different entitlement records. Below are three scenarios you might encounter.
Check #1 | Check #2 | Why it happens |
SSI | SSDI (worker’s benefit) | The person's SSDI work credits are low, so SSI supplements it up to the federal benefit rate (assuming they meet the income and asset limits). |
SSDI (worker's benefit) | SSDI (Disabled Adult Child/DAC) | The person first qualified on their own work record and later became entitled to benefits on a retired, disabled, or deceased parent's work record. They may receive payments from both records, although SSA coordinates the amounts, so they don't receive the full amount from each. |
Two SSDI checks | In rare situations, benefits from two different earnings records may be paid separately before they're combined or adjusted. SSA usually offsets these, so the total equals the higher benefit rather than the sum of both. | |
Ultimately, maintaining eligibility is what’s important, and the number of checks isn't what matters. If the individual continues to meet the rules for each program, receiving multiple payments is not a problem. Understanding where each check comes from helps families better coordinate benefits and avoid unnecessary concern.
The Intersection of SSI, SSDI, and Medicaid
One of the most valuable planning opportunities for families occurs when a disabled adult child’s parents are considering claiming their own Social Security benefits. If a disability began before age 22, an adult child may become eligible for SSDI benefits when a parent:
Begins collecting their Social Security retirement benefit
Becomes disabled
Passes away.
If a child is on SSI and then begins receiving an SSDI DAC benefit, they may switch completely from SSI to SSDI if the DAC benefit exceeds the SSI maximum. Parents should thoughtfully plan around claiming Social Security, which I wrote about in a previous blog.
Although SSDI itself has no income or asset limits, many individuals receiving SSDI are advised to remain within the tighter SSI resource limits if they want to remain eligible for Medicaid and Medicaid waivers. Many states determine if an individual is eligible for Medicaid services by their SSI eligibility.
While the acronyms SSI and SSDI basically sound the same, they are built on entirely different rules and have different planning implications. Knowing the distinction can help families make informed decisions about savings, employment, benefits, and long-term financial security.
About Brett
Brett Corsello is a Partner and Portfolio Manager at Juno Financial Group in Richmond, VA, where he leads the firm’s Special Needs Financial Planning Practice. He is a Chartered Financial Analyst (CFA) and a Chartered Alternative Investment Analyst (CAIA).