The total payment amount is capped at two (2) times the up-front funding you receive, even if you earn a high income after graduation. This may provide a risk to students who are among the highest income earners and may be more expensive than taking out an interest-bearing student loan. The only other risk that you face is if you do not fulfill your obligation to provide up-to-date income information or to make payments based on that income. If that occurs, your account will become delinquent and may eventually go into default.