What Types of Income is Allowed Post-Disability Discharge of Federal Student Loans?

Some of our student loan clients have asked what they can make in terms of income and still be approved for a social security disability discharge.  Normally we tell them income from employment counts, income from investments do not.  For those that fear that they have to do a little part-time work in order to meet their bills, the guidelines allow someone to earn up to the poverty guidelines for their family size (and a family of one can use a family of two).

 
What forms of income are used to determine if I am exceeding the Poverty Guidelines or not?
The only income used to determine if you are exceeding the Poverty Guideline amount is income from employment.