Best student loan repayment plan for $300k
On $300k of student loans the plan sets both the monthly payment — $423 on RAP against $3,406 on the standard 10-year plan at a $75k income — and what the loan costs in total. There are two answers, because Public Service Loan Forgiveness discharges the balance tax-free after 120 payments and everyone else pays to the end or to a taxable write-off. Every figure below is a full year-by-year projection: single filer in Texas, 28 years old, income growing 4% a year, 6.5% federal loans taken in 2026, run through age 60 so a 30-year RAP term and its forgiveness tax fall inside the window.
The plans compared for $300k
Payments start from a $75k salary and rise with it. RAP is the only income-driven plan open to loans taken from July 2026; IBR stays available to older loans; PSLF is a program layered on either one. "Total" is every payment plus the tax charged in the year a balance is forgiven.
| Plan | Monthly, yr 1 | Payments | Forgiven | Tax on it | Total |
|---|---|---|---|---|---|
| RAP (income-driven) | $423 | $396,146 | $265,122 at 58 | $62,581 | $458,728 |
| RAP + PSLF | $423 | $68,768 | $294,000 at 38 | $0 (tax-free) | $68,768 |
| IBR (pre-July-2026 loans) | $405 | $149,867 | $540,133 at 48 | $159,774 | $309,641 |
| IBR + PSLF | $405 | $57,380 | $437,620 at 38 | $0 (tax-free) | $57,380 |
| Standard 10-year | $3,406 | $408,773 | paid off at 37 | $0 | $408,773 |
$300k student loan monthly payment by income
The standard payment never moves — $3,406 a month for 120 months, whatever the salary. The income-driven payments do: RAP takes 1–10% of AGI by $10,000 band, IBR 10% of income above $23,940. The last two columns give each income its own verdict, from the same projections as the table above.
| Income | RAP | IBR | Standard | Cheapest open plan | RAP + PSLF total |
|---|---|---|---|---|---|
| $50k | $160/mo | $197/mo | $3,406/mo | RAP $283,311† | $28,732 IBR $28,023 |
| $75k | $423/mo | $405/mo | $3,406/mo | Standard $408,773† | $68,768 IBR $57,380 |
| $100k | $750/mo | $634/mo | $3,406/mo | Standard $408,773† | $115,146 IBR $89,836 |
| $150k | $1,250/mo | $1,051/mo | $3,406/mo | Standard $408,773 | $177,089 IBR $149,806 |
† IBR, available only to loans taken before July 2026, costs less than either open plan at this income.
The same ladder at every balance, with the crossover income where RAP stops being the lower payment, is on RAP vs IBR; the RAP formula by AGI and dependents is on the RAP calculator.
Every balance at a $75k income
Each row is its own set of projections, not a scaling of this page's. At $75k the standard plan is cheapest at 9 of the 11 balances and RAP at 2: at $30k RAP's income-based payment is at or above the ten-year payment, so the loan clears sooner with less interest; at $40k it starts below the ten-year payment but rises past it with income and still clears the loan before year 30. The full balance-by-income matrix runs the same comparison at four incomes.
| Balance | RAP, yr 1 | Standard | Cheapest open plan | Public service |
|---|---|---|---|---|
| $30k | $427/mo | $341/mo | RAP $37,210 | no benefit (paid off at 34) |
| $40k | $423/mo | $454/mo | RAP $53,376 | no benefit (paid off at 36) |
| $50k | $423/mo | $568/mo | Standard $68,129 | RAP + PSLF $69,060 |
| $60k | $423/mo | $681/mo | Standard $81,755 | RAP + PSLF $68,796 |
| $75k | $423/mo | $852/mo | Standard $102,193 | RAP + PSLF $68,768 |
| $100k | $423/mo | $1,135/mo | Standard $136,258 | RAP + PSLF $68,768 |
| $125k | $423/mo | $1,419/mo | Standard $170,322 | RAP + PSLF $68,768 |
| $150k | $423/mo | $1,703/mo | Standard $204,386 | RAP + PSLF $68,768 |
| $200k | $423/mo | $2,271/mo | Standard $272,515 | RAP + PSLF $68,768 |
| $250k | $423/mo | $2,839/mo | Standard $340,644 | RAP + PSLF $68,768 |
| $300k this page | $423/mo | $3,406/mo | Standard $408,773 | RAP + PSLF $68,768 |
What decides it
- Public service. PSLF discharges whatever is left after the 120th qualifying payment, tax-free, so the lowest qualifying payment wins and a large remaining balance is the point, not a problem. Here RAP + PSLF pays $68,768 and $294,000 is written off at 38. The plan-by-plan version is on best repayment plan for PSLF.
- Not public service, balance large next to income. RAP's payment is a share of AGI, not of the loan; unpaid interest is waived, the balance falls by at least $50 a month (the payment, if less), and whatever remains at 30 years is forgiven and taxed as income that year. On $300k at $75k that is $265,122 forgiven at 58 and $62,581 of tax on it — see the forgiveness tax bomb calculator.
- Not public service, payment affordable. The standard plan's $3,406 a month retires $300k in ten years with $108,773 of interest, the least of any plan. Refinancing to a lower private rate lowers that interest but permanently gives up income-driven plans, PSLF and federal discharge protections.
Educational comparison, not advice. Figures are one persona — single filer in Texas, 28 years old, income growing 4% a year, 6.5% federal loans taken in 2026, run through age 60 so a 30-year RAP term and its forgiveness tax fall inside the window — run through Coastline's projection engine; a different income path, state, filing status or rate changes them. IBR is modelled on its post-2014 terms (10% of income above 150% of the poverty line, capped at the 10-year standard payment, forgiveness at 20 years); RAP's per-dependent reduction counts children aged 0–23. Repayment rules change often — verify current terms with your servicer and studentaid.gov, and model your own balance in the calculator.
How your tax filing status can shrink the payment
On a balance this large, an income-driven payment is calculated from income, so how a married borrower files taxes can move it meaningfully. Filing jointly generally folds a spouse's income into the calculation, which raises the payment. Filing separately can base the payment on your income alone, which often lowers it, and on a heavy balance headed toward forgiveness a lower payment is usually the goal.
The catch is that married filing separately isn't free. It can forfeit or reduce a number of tax benefits, so the smaller loan payment has to be weighed against a potentially larger tax bill. Whether it nets out ahead depends on both spouses' incomes, the balance, and the specific plan's rules.
- Filing separately can lower an income-driven payment by excluding spousal income.
- It may cost you credits and deductions available only to joint filers.
- Some plans treat spousal income differently, so the benefit varies by plan.
Model it both ways with a tax preparer before filing, and confirm the current plan rules, since they change.
The protection a large federal balance quietly carries
A balance this size can feel like a liability your family would inherit. On federal loans, largely it is not. Federal student debt is discharged on the borrower's death, and there is a discharge route for total and permanent disability — so the loan does not become an estate's problem or a surviving spouse's obligation the way a mortgage would.
This is a real and frequently overlooked argument against refinancing a very large balance into private debt. Private lenders carry no equivalent obligation, terms vary between them, and a cosigner can remain on the hook. Trading federal debt for a lower private rate therefore trades away a form of insurance that is worth the most precisely when the balance is largest.
It also shapes how much life insurance a borrower with this much federal debt actually needs — often less than the raw balance would suggest.
Common questions
What's the best repayment plan for $300k in student loans?
Not in public service: standard repayment — about $408,773 over the life of the loan against $458,728 on RAP, or $309,641 on IBR for loans taken before July 2026. In public service: RAP + PSLF — about $68,768 paid, with $294,000 forgiven tax-free after the 120th payment (IBR + PSLF, for pre-July-2026 loans, $57,380).
What is the monthly payment on $300k in student loans?
On the standard 10-year plan at 6.5%, $3,406 a month for 120 months — $408,773 in total, $108,773 of it interest. Income-driven payments depend on salary, not the balance: at a $75k income RAP starts at $423 a month (7% of AGI) and IBR at $405; at $50k they are $160 and $197, at $150k $1,250 and $1,051.
Is PSLF a repayment plan?
No — PSLF (Public Service Loan Forgiveness) is a program, not a plan. The borrower stays on a qualifying income-driven plan (RAP or IBR) while working full-time for a government or 501(c)(3) employer; after 120 qualifying payments the remaining balance is discharged, and that discharge is not taxed. On $300k at $75k that is $294,000 written off at 38.
RAP or IBR for $300k?
Only loans taken before July 2026 can use IBR; RAP is the income-driven plan for everyone else. Where both are open, the engine's answer at a $75k income is IBR for the lower first payment (RAP $423 vs IBR $405) and IBR for the lower lifetime cost (RAP $458,728 vs IBR $309,641, forgiveness tax included). RAP forgives at 30 years and never lets the balance grow; IBR forgives at 20 but its balance can climb when the payment is below the interest.
Should I refinance $300k in student loans?
Refinancing to a lower private rate cuts the interest on a loan that will be paid in full — the standard plan here carries $108,773 of interest at 6.5%. It also permanently converts federal loans into private ones, which removes income-driven repayment (RAP and IBR), PSLF, and federal deferment and discharge protections. The trade only pays for a borrower who would use none of those.