What Income-Driven Repayment Means
Income-driven repayment (IDR) plans cap federal student loan payments at a percentage of your discretionary income — typically 10–20% depending on the plan. After 20–25 years of qualifying payments, the remaining balance is forgiven. These plans exist because standard 10-year repayment can be unaffordable for borrowers with high balances relative to income.
The Four IDR Plans
SAVE is the newest and generally most generous, capping payments at 5–10% of discretionary income with a higher income exemption. PAYE caps at 10% with forgiveness after 20 years. IBR caps at 10–15% depending on when you borrowed. ICR caps at 20% and is the only plan available for Parent PLUS loans through consolidation.
Who Benefits Most
IDR helps most when your balance exceeds your annual income. Someone owing $80,000 and earning $45,000 faces a standard payment of roughly $880/month. Under SAVE, that same borrower might pay $200–300 based on income. The Student Loan Calculator on DebtCalc lets you compare standard repayment against IDR estimates. Enter your balance, rate, and income to see how payments and total cost differ.
The Trade-Off
Lower monthly payments mean more total interest — often significantly more. A $60,000 loan at 6% costs about $80,000 under standard repayment but can exceed $100,000 under IDR before forgiveness. The forgiven amount may also be taxable. IDR isn't free money. It's a different distribution of the same cost, shifted to match your ability to pay at each career stage.