Supplemental Security Income (SSI) benefits are paid separately through a different program. SSI benefits may be available for certain aged, disabled, or blind individuals. To be eligible for SSI disability benefits you must be unable to work by reason of a medically determinable physical or mental impairment that can be expected to result in death, or has lasted or can be expected to last for a continuous period of twelve months. With SSI benefits there is no “work credits” requirement. Instead, those receiving SSI benefits must have income and resources that fall below certain limits.