forgiveness

Most people with a federal student loan never realize they chose a repayment plan — they took the default. But the choice between the standard 10-year plan and an income-driven plan (IDR) can swing the total cost by tens of thousands of dollars, in either direction. The standard plan is a fixed amortizing payment that clears the loan in 10 years: the highest monthly bill, the least interest, and debt-free fastest. An income-driven plan instead caps your payment at a share (often 10%) of your discretionary income — the part above roughly 150% of the poverty line — and forgives whatever balance is left after 20 or 25 years (10 years for public-service workers under PSLF). That lower payment is real relief when money is tight, but it hides a trap: when the payment is smaller than the month's interest, the unpaid interest is added to the balance and the loan GROWS — 'negative amortization.' So for a moderate earner, IDR can mean paying more in total, over twice as long, even after some forgiveness — the lower payment was just a longer, costlier loan. For a low earner whose income genuinely can't support the standard payment, the same plan is a lifeline: a tiny or zero payment, and a large balance wiped clean. The simulator races both balances over time so you can see the standard plan dive to zero while the income-driven balance climbs above what you borrowed before forgiveness erases the rest. The durable lessons: judge a loan on total cost and time, not the monthly payment; income-driven repayment is a safety net for unaffordable payments, not a default to reach for; forgiveness can be taxed; and refinancing a federal loan to a private one trades these protections away for good.