The SSI program provides benefits to disabled people who don't qualify for regular disability benefits. The benefit amount is a flat $733 a month as of 2016, but SSI is a means-tested program. The person's resources are limited to $2,000 if single and $3,000 if married. In addition, Social Security limits monthly earned and unearned income. If receiving free lodging from a relative, for example, the agency will count the market value of that housing as income and offset the benefit accordingly. If you are claiming her as a dependent and thus providing at least half of her support, she may exceed the income guidelines for SSI.