New Delhi, Aug. 1 -- If you're expecting a Supplemental Security Income payment in August, don't be surprised if it shows up early. Here's what to know about the early payment, who qualifies for SSI, and when Social Security benefits will come.

Although both programs are administered by the Social Security Administration, they serve different groups of people with separate funding mechanisms.

Social Security is based on your work history and the payroll taxes you've paid into the system. While Supplemental Security Income is based on your needs.

To be eligible for Supplemental Security Income (SSI), an individual must be age 65 or older, blind, or have a disability, and must also meet strict limits on income, resources, and U.S. reside...