I currently am on medication and was recently approved for SSI benefits including cash assistance and food stamps. The money comes in monthly with no problem but I can't afford housing with just this and need a second form of income. I was wondering if anyone knew how much, or if there is any place online, where I can find out how many hours i can work/how much money I can make without cutting into my benefits.
As Dilip commented, the Social Security web site is pretty comprehensive.
Understanding Supplemental Security Income SSI Income has the details you are looking for.
It's a convoluted equation. You lose SSI at a pretty fast rate as earned income rises. The system is not kind to those who qualify for SSI but try to earn some money to cover their needs.