Income-Driven Repayment (IDR)

Income-Driven Repayment (IDR) is the umbrella term for federal repayment plans that calculate your monthly payment based on your income and family size, instead of just your loan balance and interest rate. The four current IDR plans are SAVE, PAYE, IBR, and ICR.

The core mechanic

Every IDR plan starts with the same idea: take your discretionary income (your adjusted gross income minus some multiple of the federal poverty line), multiply by a percentage (5–20% depending on the plan), and divide by 12. That's your monthly payment. The plans differ in which poverty multiple they use, what percentage they apply, whether they cap at the Standard payment, and how long until any remaining balance is forgiven.

Why IDR matters

For borrowers chasing PSLF, the IDR plan you choose directly affects how much you pay over the 10 years before forgiveness kicks in. For borrowers who'll be on IDR for the full 20 or 25 years until balance forgiveness, the plan choice can mean tens of thousands of dollars over the life of the loan.

Re-certification

Every IDR plan requires you to re-certify your income and family size every 12 months. The Department of Education uses your most recent tax return (with your permission) to recalculate your payment. Miss the re-certification deadline and you can be defaulted back to the Standard Plan — with any unpaid interest capitalized into your principal.

Forgiveness at the end

Each IDR plan forgives any remaining balance after a set number of years (20 or 25, depending on the plan and your loan types). The forgiven amount may be taxable federal income, depending on when the forgiveness happens and what tax rules are in effect at that time.