I have a student loan that is about 50K. I am making payments on it but I am on the income contingent plan and every month I get a statement showing that what Im paying is not enough to pay even the interest, so the balance is higher every month. Does this negatively affect my credit, I pay every month on time but I want to know if this will affect my credit. Does the 50K count towards debt to available credit ratio also. How does the student loan affect credit ratings?