How MFS Could Slash Your Payment

You may have heard of the Repayment Assistance Plan (RAP).It passed as part of the One Big Beautiful Bill Act (OB3).It allows borrowers to pay up to 10% of their incomes and, in certain circumstances, receive interest subsidies, student loan forgiveness or both.This income-driven repayment (IDR) plan is supposed to vastly simplify the maze of student loan acronyms and programs that have confused borrowers for years.

In some ways, that’s true.But for middle-class households where one spouse earns five figures, there could be a major new loophole that saves families thousands of dollars.We’ll show how a certain tax strategy could allow some borrowers on RAP to pay a fraction of what they would otherwise have to pay on their student loans.The “middle-class RAP loophole” explained RAP requires a borrower to pay a minimum payment of $10 a month, up to a maximum of 10% of income.

Here’s how the Repayment Assistance Plan works.  Under $10,000: $10 a month $10,000 to $19,999: 1% of income $20,000 to $29,999: 2% of income $30,000 to $39,999: 3% of income $40,000 to $49,999: 4% of income $50,000 to $59,999: 5% of income $60,000 to $69,999: 6% of income $70,000 to $79,999: 7% of income $80,000 to $89,999: 8% of income $90,000 to $99,999: 9% of income $100,000 or more: 10% of income Example of how RAP payments are calculated Pretend a teacher in a state with low teacher pay is married to a pharmacist.Let’s say the teacher earns $60,000 per year, and the pharmacist earns $140,000.Let’s also assume the teacher owes $70,000 of student debt from a master’s degree program.If they filed taxes married filing jointly, the teacher would have to pay 10% of the combined $200,000 household income.

But if they filed taxes as married filing separately, the payment would be just 5% of the teacher’s income.One important wrinkle: RAP gives you a $50-per-month deduction from your payment for each dependent you claim.So if the teacher claims one child, their 5%-of-income payment of $250 a month drops to $200.To summarize, as seen through our RAP loan calculator:  Married filing jointly (MFJ)Married filing separately (MFS)Income counted$200,000 (combined)$60,000 (teacher only)Payment %10%5%Monthly payment$1,617*$200Annual payment$19,404$24,000 *MFJ figure includes the $50-per-dependent deduction What this means for PSLF If the teacher is at a public school, they’re already in qualifying employment for Public Service Loan Forgiveness (PSLF).

After 120 qualifying monthly payments — 10 years — their remaining balance gets wiped out tax-free.Run the math: $200 a month for 10 years is $24,000 in total payments toward a $70,000 balance.The rest gets forgiven.The “middle-class RAP loophole” is best described as when a couple with a five-figure income earner files taxes married filing separately to take advantage of a far lower payment than they would get if they filed married filing jointly.

When MFS isn't worth the lower payment If your cost of filing taxes separately is greater than the potential student loan benefit, you should abandon the idea of forgiveness and just pay back the loans.For example, if the teacher above were married to a surgeon earning $500,000 per year, the annual cost of filing taxes separately instead of jointly would be about $22,000.That cost shows up in a few places.MFS filers lose access to the student loan interest deduction entirely.

They hit higher tax brackets faster than joint filers.They lose or have reduced eligibility for credits like the Saver's Credit, education credits, and the child and dependent care credit.And IRA contribution limits phase out at much lower thresholds.The higher the joint income — and the wider the gap between spouses — the more those costs stack up.

Since that cost is so high, it would be better to file taxes jointly and pay off the loans.The basic test: estimate your annual tax cost of filing separately, then compare it to your annual student loan savings (and any forgiveness you'd be giving up over the long run).If the loan savings are bigger, MFS is on the table.If the tax cost dwarfs the savings, file jointly and attack the loans.

When should two-borrower couples file separately? Assume two spouses earn $49,000 each.If they file jointly, they’d pay 9% of their combined income toward their student loan debt.However, if they filed separately, they’d each pay 4% of their income on their loans.In dollar terms, their combined $98,000 puts them in the 9% tier, so the household payment runs about $8,800 a year ($98,000 × 9%).

Filing separately, each $49,000 income falls in the 4% tier — $1,960 per spouse, or roughly $3,900 combined.That's nearly $5,000 a year in savings on the same loans, just from changing their filing status.At this income level, the tax cost of MFS is much smaller than it would be for a $500,000-earning surgeon household, but it's not zero.Run the numbers both ways before you commit.

What could change about the RAP loophole? The Department of Education may try to write regulations that make this loophole less attractive in the future.It’s also unlikely to have enormous savings for most borrowers, since the most obvious use case is a five-figure-earning borrower pursuing PSLF whose spouse earns $100,000 to $200,000 and has no loans.This MFS use case isn't only for borrowers chasing forgiveness.RAP also offers an interest subsidy: if your monthly payment doesn't cover the interest accruing on your loans, the government waives the unpaid interest so your balance doesn't grow.

That makes MFS valuable for borrowers who are temporarily in the five-figure income band but on track to earn much more.A resident physician married to a high-earning spouse, for example, could file MFS during residency to keep her RAP payment low and their balance from ballooning — then switch to MFJ and pay the loans off aggressively once she's in private practice.When RAP goes live, though, the “middle-class RAP” loophole could save certain families a boatload.If you want help optimizing your own RAP strategy, book a consult with our team of experts.