The Right Way to Cancel Student Debt
they automatically fall out of IDR and accrued interest capitalizes into principal,
after which the interest compounds. That is also true if borrowers voluntarily and
consciously exit IDR or fail to qualify because their income is in principle sufficient
to make full payments. All the IDR programs have a repayment term, at the end of
which outstanding debt is canceled if it hasn’t been repaid. In other words,
cancellation already is the policy of choice—IDR as it currently is designed just
wrongly requires borrowers to re-enroll ten to twenty-five times, wait up to
twenty-five years, and make no mistakes.
The premise of IDR is that difficulty with repayment arises from the temporary
mismatch between (low) initial earnings soon after leaving college and high fixed
student debt payments. If that is the problem, then IDR ofers a solution:
temporarily reduce payments to a manageable portion of current income, and then
when the borrower earns enough to make full repayment, the borrower can leave
IDR and pay down the balance, in which case the borrower’s
student-debt-to-income ratio will decline towards zero as they repay. The ten-,
twenty-, or twenty-five-year repayment window is designed to backstop that
structure: if the mismatch between earnings and payments lasts long enough (or
recurs over the borrower’s lifetime), then it’s possible that borrowers will not be
able to fully repay the accumulated balance of principal-plus-accrued-interest
within that term, in which case whatever’s left is canceled.
A reasonable rule of thumb is that an initial student-loan-balance-to-income ratio of
1:1 or higher will result in rising balances over time for a borrower enrolled in IDR,
and if borrowers have that much student debt, they will almost certainly qualify for
it. Figure 5 reports the student-loan-balance-to-income ratio for the borrowers in
2
our 2009 and 2021 samples. Keep in mind that this distribution of ratios is for all
3
borrowers. For borrowers making progress toward repayment, the ratio is
3
Here we use the fact that Experian itself reports a debt-to-income ratio, and since we
separately observe total debt, we can use that to back out individual borrower income, then
compute a student debt-to-income ratio. However, any methodology used to guess a
borrower’s income is opaque, and so that is why we prefer to use ACS income data
elsewhere.
2
Back-of-the-envelope calculations using current interest rates on new student loans,
which in general are lower than historical rates, indicate that a debt-to-income ratio of 60
percent when repayment begins (or thereafter) will lengthen the repayment term beyond
the standard 10 years, and a ratio of 120-130 percent when repayment begins (or thereafter)
will result in continuously-rising student loan balances over time. But it bears emphasis
that these calculations have many significant moving parts and assumptions (most
importantly, relating to lifetime income trajectories, which in many cases do not rise as
quickly as interest is accrued), such that actual borrowers’ experience, for example given
income fluctuations over a lifetime, could be very diferent.