How Income-Driven Repayment Plans Work for Student Loans
What income-driven repayment actually does
Income-driven repayment ties your monthly student loan payment to what you actually earn right now, not to the total amount you borrowed. Instead of a fixed payment each month, you pay a percentage of your discretionary income — typically 10 to 20 percent depending on which plan you choose. If your income drops, your payment drops. If you're not working, your payment can be zero.
The federal government offers four income-driven plans: Revised Pay As You Earn (REPAYE), Pay As You Earn (PAYE), Income-Based Repayment (IBR), and Income-Contingent Repayment (ICR). Each calculates your payment differently and has different rules about what happens to unpaid interest. The plan that makes sense for you depends on your current income, how much you borrowed, and whether you have both undergraduate and graduate loans.
Income-driven plans are most useful when your monthly payment under the standard 10-year plan would be more than you can afford right now. They're also the only way to reach forgiveness — after 20 to 25 years of payments on an income-driven plan, any remaining balance can be forgiven, though you may owe income tax on the forgiven amount.
Key Takeaways
- Your monthly payment on an income-driven plan is calculated as a percentage of your discretionary income, not as a fixed amount based on your loan balance.
- You must recertify your income every year, usually through the Federal Student Aid website, or your payment will jump to a much higher amount.
- Unpaid interest can capitalize (get added to your principal) on some plans but not others, which affects how much you owe over time.
- After 20 to 25 years of payments, any remaining balance may be forgiven, but you could owe federal income tax on the forgiven amount.
- You can switch between income-driven plans at any time, and switching can lower your payment if your circumstances change.
How your payment gets calculated
The government starts with your discretionary income, which is your adjusted gross income (from your tax return) minus 150 percent of the federal poverty line for your family size and state. If that number is negative or zero, your payment is zero. If it's positive, you pay a percentage of it — the percentage depends on which plan you're on.
REPAYE and PAYE both use 10 percent of discretionary income. IBR uses 10 or 15 percent depending on when you took out your loans. ICR uses 20 percent. The difference matters: on REPAYE at 10 percent, someone earning $35,000 with a family size of one might pay around $120 per month. On ICR at 20 percent, the same person might pay $240.
Your payment is recalculated once a year based on your most recent tax return. If you got a raise, your payment goes up. If you lost income or had a major life change, you can request a recalculation outside the annual window by submitting a new income estimate to your loan servicer.
The difference between the four plans
Each income-driven plan uses a different payment percentage and has different rules about how unpaid interest is handled. The plan you choose affects both your monthly payment and how much you'll owe at the end.
| Plan | Payment percentage | Forgiveness timeline | Unpaid interest |
|---|---|---|---|
| REPAYE | 10% of discretionary income | 20 years (undergrad loans) or 25 years (any grad loans) | Interest that accrues but isn't paid is cut in half; the other half capitalizes |
| PAYE | 10% of discretionary income | 20 years | Unpaid interest does not capitalize as long as you stay on PAYE |
| IBR | 10% or 15% of discretionary income (depends on loan origination date) | 20 or 25 years | Unpaid interest capitalizes after three consecutive years of non-payment |
| ICR | 20% of discretionary income | 25 years | Unpaid interest capitalizes monthly |
REPAYE is the most generous on interest but has the longest forgiveness timeline if you have any graduate loans. PAYE has the shortest timeline (20 years) and protects against interest capitalization, but you must have taken out your first loan after October 2007 and be a new borrower as of October 2011. IBR is a middle ground and works for older loans. ICR is the least common choice because the 20 percent payment is high and interest capitalizes every month.
What happens if you miss the annual recertification
Every year, your loan servicer will ask you to recertify your income. This is usually done through the Federal Student Aid website (studentaid.gov) or through your servicer's website. You'll need your most recent tax return or an income estimate if your situation has changed since you filed.
If you don't recertify by the deadline, your payment will jump to the standard 10-year repayment amount — often several hundred dollars more per month. This can happen even if you're on track with payments. You can recertify late and get back onto the income-driven payment, but you'll owe the difference between what you paid and what you should have paid during the gap.
If you're having trouble recertifying — you can't locate your tax return, your income is irregular, or you're unemployed — contact your servicer and ask for a manual recertification or an income estimate form. You can also request a temporary payment pause while you gather documents.
Unpaid interest and capitalization: what you need to know
On an income-driven plan, your monthly payment might not cover all the interest that accrues each month. The unpaid interest is called negative amortization. What happens to it depends on your plan.
On PAYE, unpaid interest simply sits there — it doesn't get added to your principal as long as you stay on PAYE and keep making payments. On REPAYE, half the unpaid interest is forgiven and half capitalizes. On IBR and ICR, unpaid interest capitalizes after a certain period or immediately, which means it gets added to your principal and you start paying interest on the interest.
This matters because capitalization increases the total amount you owe. If you have $50,000 in loans and $200 in unpaid interest each month, after a year that's $2,400 added to your principal. After five years, you're paying interest on $62,400 instead of $50,000. Over 20 years, capitalization can nearly double what you owe at forgiveness.
When to switch plans or when to stop using income-driven repayment
You can switch between income-driven plans at any time by contacting your servicer. You might switch if your income rises significantly and you want a shorter forgiveness timeline, or if you want to move to a plan with better interest protection.
Some borrowers find that after a few years, their income has risen enough that the standard 10-year plan actually costs less per month than staying on an income-driven plan. You can run the math by asking your servicer for a payment estimate under each plan. If the standard plan is cheaper and you can afford it, switching can save you money on interest over time.
If you're on an income-driven plan and your income drops to zero or near zero, your payment stays at zero as long as you recertify each year. You're still making progress toward forgiveness even if you're not paying anything. However, interest continues to accrue and may capitalize, so your balance could grow.
Tax consequences of forgiveness
When your remaining balance is forgiven after 20 to 25 years, the forgiven amount is treated as taxable income by the IRS. If you have $80,000 forgiven, you may owe federal income tax on that $80,000 in the year it's forgiven. Some states also tax forgiven student loan debt.
The actual tax bill depends on your income that year and your tax bracket. Someone in the 22 percent federal tax bracket owing $80,000 in forgiveness could owe around $17,600 in federal tax. This is not automatic — you'll receive a 1099-C form from your servicer, and you'll report it on your tax return.
Some borrowers set aside money each year to prepare for this tax bill. Others look into whether they might be covered under Public Service Loan Forgiveness, which forgives loans tax-free after 10 years of payments while working for a government agency or nonprofit.
Frequently Asked Questions
Do I have to be on an income-driven plan to get loan forgiveness?
Yes. Forgiveness only happens on an income-driven plan (or on Public Service Loan Forgiveness, which is separate). The standard 10-year plan does not lead to forgiveness — you pay off the loan in 10 years and you're done. If you want forgiveness as an option, you must be on REPAYE, PAYE, IBR, or ICR.
What if my income is zero or I'm unemployed?
Your payment will be zero as long as you recertify your income each year. You're still making progress toward forgiveness. Interest will accrue and may capitalize depending on your plan, so your balance could grow, but you won't fall behind on payments.
Can I switch back to the standard plan after being on income-driven repayment?
Yes, you can switch to the standard 10-year plan at any time. However, if you've been on an income-driven plan for several years, switching to standard might mean a much higher monthly payment. You'd also lose progress toward forgiveness — the clock resets if you leave an income-driven plan.
Will income-driven repayment hurt my credit score?
No. As long as you make your payments on time — even if your payment is zero — your credit is not affected. Missing payments or not recertifying your income (which causes your payment to jump) can hurt your credit.
What if I get married or have a child?
Your family size affects your discretionary income calculation, which can lower your payment. You'll recertify your income at your next annual deadline and report your new family size. If you file taxes jointly with a spouse, their income counts toward your discretionary income on most plans (REPAYE is an exception for married borrowers filing separately).