On April 23, 2013 at 8:11 am Lorrie Stojni, B.A., M.A., LL.B. said: Child support is based on your line 150 income as filed in your income tax return in any given year. There are some exceptions to that, but generally that is what child support is based on. It appears your student loan is a loan and will not be included in your income. I suggest you consult with legal counsel regarding this issue.