Why is my RAP payment higher than IBR?
Last verified August 11, 2026 · sources and methodology
Because they measure different things. IBR takes a percentage of your discretionary income — your AGI minus 150% of the poverty guideline for your family size. RAP takes a percentage of your full AGI, with no poverty-line deduction at all. Below roughly $40,000 that gap is wide, and RAP can cost noticeably more each month.
A worked example
A single borrower earning $28,000 has discretionary income of about $4,060 once the 2026 poverty guideline is subtracted. New IBR takes 10% of that — roughly $34 a month.
RAP looks at the full $28,000, lands in the 2% band, and charges about $47 a month before any dependent credit. Same borrower, same income, different definition.
What RAP gives you in return
RAP waives unpaid interest rather than letting it pile up, so your balance cannot grow. It also guarantees at least $50 a month of principal reduction, topping up from the government if your payment does not get there.
For a large balance against a modest income, those two features can beat a lower IBR payment over the life of the loan — because IBR lets interest accumulate against you for decades and then taxes whatever is forgiven.
Do not decide on the monthly number alone
The monthly payment is the number you feel. The lifetime cost, including tax on any forgiven balance, is the number that decides whether you come out ahead. They frequently point in opposite directions.
Common follow-ups
Does RAP have a $0 payment?
No. The minimum is $10 a month regardless of income. Each dependent reduces the payment by $50, but never below that $10 floor.
Is RAP always worse for low earners?
On the monthly payment, often yes. On total cost it frequently wins, because interest is waived and forgiveness at 30 years leaves a smaller taxable balance.