I know this seems like a horrible thing to complain about, but our IBR (for both myself and my husband) seem extremely low.  I know all about the adjustments and calculations and even with all of them it still seems like we are paying at most 1/3 of what the calculations suggest we should. 

Our paperwork has always been spot on, I handle financial matters like this regularly and have never had any issue.  I guess my fear is that at some point someone is going to say they are too low and ask us to pay back a whole lot of money.

We are married, file jointly.  My husband’s loans total close to $200K ( a variety of interest rates we both consolidated a bunch at a lower rate, but far from even half), mine are at about $30K, all direct loans.  Our AGI last year was around $65K. We have two kids and two incomes.

My questions are:

1. What factors might I be missing in our calculations?  What do I need to consider that would affect our formula?
2. IF it is too low, can the feds come back at some point and require back pay?

Have you used this calculator to estimate your IBR?  https://studentloans.gov/myDirectLoan/mobile/repayment/repaymentEstimator.action

I have.  It gives me an amount that is 5 times the amount Im paying.  in all fairness, I’m doing a wee bit of estimating with the loans(there are 39 of them total, all with an average interest rate), but still….