PAYE vs IBR: Payments, Forgiveness, and Which to Choose

When comparing PAYE vs IBR, Pay As You Earn usually wins on the numbers: a lower payment percentage for older borrowers, a 20-year forgiveness window regardless of when you borrowed, and a hard cap on how much unpaid interest can be added to your principal. The complication is timing. Borrowers who receive a Direct Loan on or after July 1, 2026, cannot enroll in PAYE, and every remaining PAYE borrower must switch plans by July 1, 2028.¹ So the real question for most borrowers is narrower: are you eligible for PAYE at all, and if so, is it worth getting on a plan with an expiration date?

Who Qualifies for Each Plan

Both plans require a partial financial hardship, meaning the income-driven payment must come out lower than what you’d owe on the standard 10-year schedule. If your income is high enough that the percentage calculation exceeds the standard payment, you can’t enroll.

PAYE adds a strict “new borrower” test. You qualify only if you had no outstanding Direct Loan or FFEL balance when you took out a new Direct or FFEL loan on or after October 1, 2007, and you received at least one Direct Loan disbursement on or after October 1, 2011.² Only Direct Loans qualify directly. FFEL loans can be made eligible, but only through a Direct Consolidation Loan first. Parent PLUS loans are excluded entirely, even after consolidation.³

IBR is far more open. There is no “new borrower” requirement to enroll. Direct Loans and FFEL Program loans both qualify without consolidation. Parent PLUS loans remain excluded.³ The July 1, 2014 cutoff for IBR doesn’t gate access; it determines your terms. If you had no outstanding Direct or FFEL balance on that date (or when you first borrowed after it), you’re a “new” IBR borrower and get the better payment percentage and forgiveness timeline.²

One shared boundary: defaulted federal loans are not eligible for either plan. You have to resolve the default through rehabilitation, consolidation, or another available path before enrolling.²

How Monthly Payments Compare

Both plans use the same base calculation: discretionary income equals your adjusted gross income minus 150% of the federal poverty guideline for your family size. HHS updates the poverty guidelines annually, so your number shifts each year even if your salary doesn’t.⁴

The percentage applied to that discretionary income is where the plans split:

PAYE: 10% of discretionary income.
IBR for new borrowers (no balance on or after July 1, 2014): 10% of discretionary income.
IBR for borrowers with balances before July 1, 2014: 15% of discretionary income.

The 15% versus 10% gap is substantial. A borrower with $50,000 in AGI and a family size of one pays roughly 50% more each month on old IBR than on PAYE or new IBR.²

Both plans share a ceiling. Your monthly payment can never exceed what you’d owe under the standard 10-year schedule. If your income climbs enough that the percentage calculation surpasses that standard figure, your payment caps there. You stay on the plan and keep earning credit toward forgiveness.²

Interest Capitalization: PAYE’s Biggest Advantage

When your monthly payment doesn’t cover all the interest accruing on your loans, the unpaid portion builds up. The question is when that unpaid interest gets folded into your principal, and how much.

PAYE caps it. The total amount of unpaid interest that can ever capitalize is limited to 10% of your original principal balance at the time you entered the plan.⁵ A $40,000 borrower will never see more than $4,000 added to principal through capitalization, no matter how long interest piles up.

IBR has no cap. When capitalization triggers, the full accumulated unpaid interest gets added to principal. Capitalization is triggered if you leave IBR, fail to recertify your income on time, or no longer qualify for a reduced payment after a recalculation.⁶ For a borrower with a large balance and years of negative amortization, that single difference can cost thousands.

Recertification matters on both plans. You must verify your income and family size every year, and a missed deadline pushes your payment up to the standard 10-year amount temporarily. On IBR, missing it also triggers capitalization.⁷

How Long Until Forgiveness

Both plans forgive any remaining balance after a set number of qualifying monthly payments:

PAYE: 20 years (240 qualifying payments), regardless of when you borrowed.
IBR for new borrowers (on or after July 1, 2014): 20 years.
IBR for pre-2014 borrowers: 25 years (300 qualifying payments).

Five extra years on old IBR means 60 additional payments before forgiveness.⁸ Combined with the 15% payment rate, that’s the main reason old IBR is the least attractive of these options for anyone who has a choice.

How Marriage and Tax Filing Change the Math

If you’re married, your tax filing status directly changes your monthly payment under both plans. Filing jointly means your spouse’s income is included in the discretionary income calculation and your payment rises. Filing Married Filing Separately keeps the calculation to your individual income only.⁹

Filing separately costs you access to several tax benefits, including the student loan interest deduction, education credits, and often the earned income tax credit. For some couples the loan savings outweigh the lost tax benefits; for others it doesn’t. The only way to know is to run both scenarios each year before filing.

A useful detail that catches people out: even when you file separately, you can still count your spouse in your family size for the poverty guideline calculation, which raises the poverty threshold and lowers your payment.⁹

If You Work in Public Service

Payments on both PAYE and IBR count toward the 120-payment Public Service Loan Forgiveness requirement. PSLF forgives after 10 years, and the forgiven amount is not treated as taxable income, which is a materially better deal than standard income-driven forgiveness.

For a PSLF-eligible borrower, the PAYE vs IBR decision becomes a straight payment comparison over 10 years. PAYE’s 10% matches new IBR and beats old IBR’s 15%. PAYE’s interest capitalization cap matters less in this scenario because the shorter forgiveness timeline leaves less time for unpaid interest to build.

Which Plan to Choose

If you borrowed before July 1, 2014, and you meet PAYE’s new-borrower rules, PAYE is almost always the better plan. You get a 10% payment rate instead of IBR’s 15%, forgiveness after 20 years instead of 25, and a 10% cap on interest capitalization that IBR doesn’t offer. The one caution is the phase-out: PAYE closes to new enrollees with loans disbursed on or after July 1, 2026, and ends entirely by June 30, 2028.²¹

If you don’t qualify for PAYE, or you have FFEL loans and don’t want to consolidate, IBR is your option. New IBR borrowers get the same 10% rate and 20-year forgiveness as PAYE, giving up only the capitalization cap. Pre-2014 IBR borrowers face the worst combination here: 15% payments and 25 years.

Because PAYE is scheduled to end in 2028, borrowers currently on PAYE or thinking about enrolling should also weigh the new Repayment Assistance Plan (RAP), which becomes available on July 1, 2026, against IBR before the switch is forced. The plan you pick today is a plan you may have to replace in a few years, and the right landing spot depends on your income, your balance, and whether you’re pursuing PSLF.

1
Federal Register. Reimagining and Improving Student Education Federal Student Loan Program Final Regulations
2
Federal Student Aid. Income-Driven Repayment Plans
3
Federal Student Aid. Top FAQs About Income-Driven Repayment Plans
4
U.S. Department of Health and Human Services. Poverty Guidelines API
5
United States Department of Education. Eliminate Interest Capitalization for Non-Statutory Capitalizing Events
6
Federal Student Aid. Interest Capitalization
7
Federal Student Aid. Income-Driven Repayment Plan Request
8
Federal Student Aid. Student Loan Forgiveness and Other Ways the Government Can Help You Repay Your Loans
9
Federal Student Aid. 4 Things to Know About Marriage and Student Loan Debt