Income-Driven Repayment (IDR)

Income-driven repayment is a category of federal student loan repayment plan in which the monthly payment is calculated from the borrower's income and family size instead of the loan balance, and any remaining balance is cancelled after a set number of qualifying payments. The regulation at 34 CFR 685.209(a) names five members of the family: the Revised Pay As You Earn plan, "which may also be referred to as the Saving on a Valuable Education (SAVE) plan"; Income-Based Repayment; Pay As You Earn; Income-Contingent Repayment; and the Repayment Assistance Plan. A naming wrinkle worth knowing: the statute calls the newest member "the income-based Repayment Assistance Plan" while the regulation files it under income-driven. Both are correct in their own document, and the underlying idea is the same.

Every income-driven plan shares four pieces of machinery, and understanding them transfers across all five. The payment is computed from adjusted gross income, so it reflects last year's tax return rather than this month's paycheck. Family size enters the calculation, either through a poverty guideline that scales with household size or, under the newest plan, through a flat per-dependent reduction. Eligibility and the payment amount are recertified once a year, and a borrower who misses the recertification is moved to a higher payment until they file. And each plan ends in cancellation after a stated number of qualifying payments rather than when the balance reaches zero.

What the plans do not share is the base of the percentage, and that is the distinction that decides which one costs less. The older plans charge a percentage of income above a poverty threshold, so income below the threshold is protected. The Repayment Assistance Plan charges a percentage of all adjusted gross income on a sliding scale, with no protected floor but a lower rate at low incomes. Comparing "10 percent" under one plan to "10 percent" under the other is therefore comparing two different things.

The family is collapsing on a statutory timetable set by Public Law 119-21. Section 82001(c)(1) repeals 20 USC 1087e(e), the income-contingent repayment authority, effective July 1, 2028, and Pay As You Earn, Revised Pay As You Earn and Income-Contingent Repayment are all regulatory plans built on it. The statute also requires that before July 1, 2028 every borrower on one of those plans elect something else, with a default: a borrower who elects nothing is moved to the Repayment Assistance Plan, or to Income-Based Repayment for loans the newer plan cannot take, and begins repaying on that footing on July 1, 2028. Income-Based Repayment survives the repeal because it rests on its own statutory authority rather than on the income-contingent provision.

A reader working from the regulation alone will be misled on one point. 34 CFR 685.209(c)(2) still says that "through June 30, 2028, a Direct Loan borrower who has not received a Direct Loan on or after July 1, 2026, may repay under the REPAYE plan." That is regulatory text describing a plan that is not in fact open to borrowers. The SAVE rule was the subject of extended litigation, borrowers were placed in a forbearance rather than a repayment status, and the Department has stated it will not implement the rule. The practical position is not in doubt even though the procedural history is tangled, and this page states the outcome rather than a mechanism.

A borrower certifies income and family size, the servicer applies the plan's formula, and the resulting payment holds for twelve months before recertification. What differs is the formula and the finish line.

Income-Based Repayment has two formulas, and which one applies is decided by dates rather than by choice. Under 34 CFR 685.209(b)(1), a borrower who is not a "new borrower" pays 15 percent of adjusted gross income above 150 percent of the poverty guideline and reaches forgiveness after 300 payments over at least 25 years. A "new borrower" pays 10 percent and reaches forgiveness after 240 payments over at least 20 years. The definition of new borrower for this plan has two routes, and the first of them carries a live planning trap: it requires no outstanding federal loan balance before July 1, 2014 and that the borrower take no new loan on or after July 1, 2026. A borrower qualifying by that route can therefore lose the more favorable formula on loans they already hold by taking out a new federal loan. The second route reaches a borrower who had no outstanding balance on the date they borrowed between those two dates.

Pay As You Earn charges 10 percent above 150 percent of the poverty guideline with forgiveness at 240 payments, and is closed to newcomers. A borrower qualifies only if they were already repaying under it on July 1, 2024, and a borrower who leaves may not re-enroll. It ends with the 2028 repeal.

Income-Contingent Repayment is similarly closed, with the same already-enrolled-on-July-1-2024 requirement, and it also ends in 2028. It retains one distinctive use in the meantime. A consolidation loan that repaid a parent PLUS loan generally cannot go on any other income-driven plan, so income-contingent repayment is the only route for that borrower until it sunsets.

The Repayment Assistance Plan takes a percentage of all adjusted gross income from 1 percent to 10 percent on a sliding scale, waives unpaid interest and cancels after 360 payments.

Two one-way doors are hidden in the regulation and neither is signposted for borrowers. A borrower who has made 60 or more qualifying payments under the REPAYE plan on or after July 1, 2024 may not enroll in Income-Based Repayment. And a borrower who leaves the Pay As You Earn or Income-Contingent plan may not go back into it.

Finally, the shape of the choice depends on when the loan was made. Under 20 USC 1087e(d)(7)(A), a borrower whose loan was first made on or after July 1, 2026 is offered exactly two plans: a standard plan whose term runs 10, 15, 20 or 25 years depending on total principal, and the Repayment Assistance Plan. The Secretary is barred from authorizing or even modifying any other plan for those loans.

Pros

• The payment tracks income, so it falls in a bad year instead of pushing the borrower toward default.
• Cancellation at the end of the term is a real backstop for a balance that income will never clear.
• Payments made on a qualifying income-driven plan can simultaneously count toward public service loan forgiveness for a borrower who also works for a qualifying employer.
• The formula uses adjusted gross income, so above-the-line deductions and retirement plan contributions that reduce that figure also reduce the payment.

Cons

• Cancellation after an income-driven term is generally taxable again for discharges after 2025, so a borrower may face a real tax bill in the year the balance disappears.
• Under the older plans a payment smaller than the month's interest lets the balance grow, sometimes for years.
• Annual recertification is a live administrative obligation, and missing it raises the payment.
• The family is mid-wind-down, so a borrower may be moved to a different plan on a schedule they did not choose.
• Stretching repayment over 20 to 30 years means paying far more total interest than a ten-year standard plan, even when the monthly payment is easier.