Wiping out 10k in student debt is not the most expensive part of the Biden student loan program. Most Federal student loans are now eligible for an income based repayment plan, under these plans students pay a small percentage of their “discretionary” income, say 10%, and then after a fixed number of years the debt is wiped off the student’s books. At first glance these plans don’t seem crazy, but as Matt Bruenig points out they create perverse incentives.
The IDR changes are four-fold: Increase the amount of income not subject to IDR from 150 percent of the federal poverty line to 225 percent of the federal poverty line. Reduce the interest rate on IDR-enrolled loans to 0 percent.
For undergraduate debt, reduce the IDR rate from 10 percent of income beyond the threshold in (1) to 5 percent of income beyond the threshold in (1).
For IDR-enrolled debts with original loan balances below $12,000, reduce the repayment period from 20 years to 10 years.