Income-Driven Repayment Calculator for Student Loans

Use our calculator to estimate your monthly federal student loan payment under a legacy income-driven repayment plan or the new Repayment Assistance Plan (RAP).

Shannon Bradley
Alana Benson
Updated
If you're struggling to make student loan payments, income-driven repayment (IDR) plans can help. With an IDR, your monthly payment is based on your income.
Existing, legacy IDR plans use discretionary income (which is a portion of a borrower's adjusted gross income) to determine the payment amount, while the new Repayment Assistance Plan (RAP) will use a borrower's adjusted gross income. Our income-driven repayment calculator enables you to estimate and compare payments for both types of plans.

Compare payments for student loan IDR plans

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How do legacy IDR plans calculate payments?

In the past, the U.S. Department of Education (ED) used only discretionary income to calculate payments for income-driven repayment. Discretionary income is the portion of your adjusted gross income (AGI) above a set percentage of the federal poverty guideline for your family size and state. Think of it as the money left over after taking into account basic living costs. The lower your discretionary income, the lower your payment.
To find your discretionary income, you first need your AGI, which is the amount you pay taxes on. You can find it on your most recent federal tax return — Line 11 on Form 1040. Next, look up the federal poverty guideline for your state and family size. Multiply that by these percentages depending on the IDR plan: 150% for Income-Based Repayment (IBR) and Pay As You Earn (PAYE) or 100% for Income-Contingent Repayment (ICR). Then subtract the result from your AGI.
Once you have your discretionary income, your monthly payment is a percentage of that amount divided by 12. IBR is 10% for borrowers who took out loans on or after July 1, 2014, or 15% for those who borrowed before that date. PAYE is 10%. ICR is 20% or a 12-year fixed payment adjusted for income, whichever is less.

Can borrowers remain on legacy IDR plans?

Beginning July 1, 2026, the federal government is overhauling income-driven repayment. It will introduce the new Repayment Assistance Plan (RAP), and it will phase out existing options over time.
If you're already enrolled in IBR, PAYE or ICR, you can remain on your plan. However, if you take out new federal student loans or consolidate loans after July 1, 2026, RAP will be your only income-driven repayment option. Also, ICR and PAYE have a firm ending date of July 1, 2028.
The Saving on a Valuable Education (SAVE) plan is no longer accepting new enrollees and is in the process of winding down now. We’ve kept SAVE in our calculator for now, so borrowers can compare payments for SAVE and other IDR plans.

How does RAP calculate payments?

Starting July 1, 2026, the new Repayment Assistance Plan (RAP) will be available to federal student loan borrowers. Unlike legacy IDR plans, RAP does not use discretionary income. Instead, RAP monthly payments will be graduated based on your adjusted gross income in the previous tax year.
On RAP, the more you earn, the larger the portion of income you pay each month. Your monthly payment is reduced by $50 for each dependent you claim on your federal tax return. The minimum monthly payment is $10.
RAP will require you to recertify income annually, so a pay increase that puts you in a new bracket would increase your student loan payment.
RAP base payment tiers
Annual income bracket
RAP base payment
$0 - $10,000
$120 ($10 monthly)
$10,001 - $20,000
1% of adjusted gross income (AGI)
$20,001 - $30,000
2% of AGI
$30,001 - $40,000
3% of AGI
$40,001 - $50,000
4% of AGI
$50,001 - $60,000
5% of AGI
$60,001 - $70,000
6% of AGI
$70,001 - $80,000
7% of AGI
$80,001 - $90,000
8% of AGI
$90,001 - $100,000
9% of AGI
$100,001 and above
10% of AGI
RAP monthly payment formula: (RAP base payment/12) - $50 per dependent = Estimated monthly RAP payment

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