IBR vs RAP: Which Student Loan Repayment Plan Is Better for You?

Neither plan is universally better — the right choice depends on how close you are to forgiveness, how your family is counted, and whether you care more about your monthly payment or reaching the finish line. RAP became available July 1, 2026, so for existing borrowers this is now a live decision.

The choice turns on three numbers weighed against each other: your monthly payment under each plan, the interest RAP would waive, and the extra time RAP adds to your forgiveness timeline.

RAP extends the finish line by about five years — 20 years becomes 25, and 25 becomes 30, depending on which version of IBR you qualify for. Once you have your numbers under both plans, the decision comes down to what you value most.

• If the payments are close and you want to reach forgiveness quickly, IBR tends to fit. You give up RAP’s interest waiver, but you cross the finish line years earlier.

• If your priority is the lowest monthly payment, that points toward whichever plan produces it — often RAP at lower incomes, though not always.

• If you’re close to forgiveness, IBR tends to fit. You don’t have enough time left for unpaid interest to balloon your balance, and RAP’s extra years cost more than the interest relief is worth.

• If you have many years to go and your balance is climbing, RAP’s interest waiver and monthly principal credit can keep the debt from snowballing, even with the longer timeline.

Family size feeds into all of this. IBR uses a broader definition — it can include children, a domestic partner, parents, or other adults who live with you and get more than half their support from you. RAP counts only the dependents you claim on your tax return. If you support people who aren’t on your taxes, IBR can produce the lower payment.

Neither plan is cheaper across the board — IBR shelters part of your income before charging a rate, while RAP charges a flat percentage of every dollar, so which one costs less depends on your income and family size.

IBR protects part of your income first. It subtracts about 150% of the poverty line for your family size, then charges 10–15% of what’s left. That buffer means most borrowers with modest incomes or larger families get a lower bill under IBR.

RAP skips the buffer and charges a flat percentage of your total income, using brackets that rise with income:

• About 1% of income around $20,000

• About 4% around $45,000

• About 7% around $75,000

• About 10% once you’re over $100,000

RAP also knocks $50 off for each child you claim on your taxes, but won’t count anyone you don’t claim.

That structure creates three patterns:

• At lower incomes, RAP can start cheaper because it charges so little at the bottom.

• As income rises, IBR often comes out lower, because it counts only income above the poverty line and adjusts for a larger family.

• Over time, RAP may save more if your payments are too small to cover interest — it waives that interest each month and keeps your balance from growing.

RAP has no payment cap. IBR never charges more than what you’d pay on the 10-year Standard plan; RAP has no such ceiling. For a higher-income borrower with a smaller balance, that can make RAP more expensive than IBR while offering little forgiveness benefit.

IBR forgives your loans sooner than RAP does.

Under IBR, forgiveness comes after 20 or 25 years of qualifying payments — 20 years if you borrowed after July 1, 2014, and 25 years if you borrowed before. Many borrowers have already picked up years of credit through the one-time account adjustment, which counts past time in repayment, deferment, and long forbearances. For some, that credit shaves off five, ten, or more years.

If you move to RAP, the forgiveness timeline is 30 years — no matter when you first borrowed. You don’t lose the progress you’ve earned: your qualifying months from IBR and other income-driven plans, including everything added through the account adjustment, carry forward into RAP. That carry-forward works in one direction, which matters if you ever switch back.

Both plans let married borrowers file taxes separately to keep a spouse’s income out of the payment calculation — so the old worry that only IBR allowed this no longer applies. The final rules confirmed RAP keeps the married-filing-separately option.

The difference is in the details:

• Family size. IBR’s broader definition can lower your payment if you support people who aren’t claimed on your return. RAP counts only claimed dependents, at $50 each.

• Tax tradeoffs. Filing separately can cost you the Earned Income Tax Credit, some education credits, and a lower joint tax rate — sometimes more than the payment savings are worth.

Because the math turns on your income split and household, run it both ways before choosing. For how filing status changes a RAP payment, see the marriage penalty in the Repayment Assistance Plan.