True, but the only problem is if you're banking on having your loans forgiven under the PSLF then it's assumed that you'd be making the minimum payment under the IBR during residency and your total debt will quickly balloon during this period. Once you finish residency your debt burden will be to a point where it will only take a few years of making payments at the standard rate for you to have paid close to what you would have without the PSLF if your salary is anywhere near decent. This effectively forces you to find a lower paying job when you finish residency to stay eligible for the IBR plan. Again, PSLF only works out if you have a very large debt burden to start with, are doing a long residency, or plan on working in academia or some other setting where you'd be making less than what you could make otherwise.
Let's use some real numbers to illustrate my point.
If you took out $200K in med school loans over 4 years by the time you graduate the balance will increase to about $240K.
Under a standard repayment plan you would pay about $35K per year and in ten years the loans would be paid off for total payments of $350K. That possible even under most resident's salaries.
But suppose you go under IBR for the
FOUR years of residency. Stafford subsized loan interest is waived for 3 years under IBR. Assuming a $60K/year salary, a single person would pay $6.5K per year for
FIVE years. (Remember IBR is based on last year's tax return, you get one extra year of low IBR payments.)
So the loan balances would grow about $290K. Now assume at the end of residency you suddenly make about $300K per year so you now make the max payment of $42.5K per year (vs. the $35K per year previously.) In just
FIVE more years the loans are forgiven and you would have made a total of $255K in loan payments.
That's almost $100K in total savings -- after taxes!
Plus there are plenty of life events and financial strategies to reduce your IBR payment. Life events such as getting married or having children lower annual payments by $842 per year per dependent. Maxing out a 401(k) will reduce annual payments by $2,475.
Say you start residency and are married with 2 kids and max your 401(k). IBR payments are now only $1.5K per year, total payments are now only $230K, a $120K savings! And now you would need to make $330K per year to get kicked out of IBR.
Now if you take into account the time value of money, well that makes IBR/PSLF an even bigger winner. Plus not everyone can bank on making that much money right after residency. And for folks with family or other financial commitment, going under IBR may be their only option beside forbearance/deferment. And if they are eligible for PSLF, IBR is far better than forbearance/deferment.
PSLF will never force anyone into a lower payment job to benefit from loan forgiveness. It only limits full-time employment to public and 501(c) entities.