But overall, borrowers pay roughly $40 billion a year for these lender-required services.
Historically, the private sector, which often goes by the moniker Corporate America, had not, overall, been borrowers.
Overall, many borrowers have strong credit scores and repay their loans on time, but defaults have been high among "subprime" borrowers with credit scores under 620 on an 850-point scale.
This payment structure had the effect of increasing the overall interest borrowers paid on their loans, the Oliver Wyman report noted, because fewer dollars went to reducing the principal outstanding.
That number represents just 15percentt of the roughly 900,000 overall FFELP borrowers who are benefiting from reduced payments under IBR, according to White House estimates.
Barclays make the most of a 5.7 per cent APR rate online, which represents the overall interest a borrower will pay during the full lifetime of the loan.
Fannie Mae, the giant mortgage finance company that helps shape lending guidelines, plans next month to raise minimum credit score requirements and limit the amount of overall debt that borrowers can carry relative to their incomes.
The company says the SmarterBank debit card can be used in conjunction with borrowers' overall plan to pay down their student loan debt.
The overall number of borrowers past due on their student loan payments has also grown, from under 10percentt in 2004 to 17percentt in 2012.
The rate of return demanded by investors is the debtor's cost of borrowing money, so high ratings are very desirable because they reduce the borrower's overall cost of capital.
