Student Loan Repayment Optimizer

⚠️ This calculator provides estimates for planning purposes only. Student loan rules change frequently. Always verify current terms on StudentAid.gov and consult a financial advisor for decisions about your specific situation.

Understanding Income-Driven Repayment

Income-Driven Repayment (IDR) plans cap your monthly federal student loan payment at a percentage of your discretionary income — the gap between your adjusted gross income and a multiple of the federal poverty guideline for your family size. After 20–25 years of qualifying payments, any remaining balance is forgiven (though it may be taxed as income).

Four IDR plans exist today: SAVE (the newest and usually cheapest for undergrad borrowers), PAYE, IBR, and ICR. Each uses a slightly different formula for the payment cap, the poverty-line multiplier, and the forgiveness horizon. This calculator models all four so you can compare them side by side.

The SAVE Plan Explained

The Saving on a Valuable Education (SAVE) plan replaced REPAYE in mid-2023. Key differences:

• Higher income protection: SAVE shields 225% of the poverty line from payment calculations, versus 150% for PAYE/IBR. This means lower payments for most borrowers.
• Lower payment rate for undergrad-only borrowers: Just 5% of discretionary income (vs. 10% under PAYE/IBR). Borrowers with grad loans pay a weighted rate between 5% and 10%.
• Interest subsidy: If your payment doesn't cover all accruing interest, the government covers the rest — your balance won't grow while enrolled in SAVE.
• Shorter forgiveness for small balances: Borrowers who originally borrowed $12,000 or less may see forgiveness after just 10 years of payments.

Note: As of mid-2024, parts of the SAVE plan are subject to legal challenges. Check StudentAid.gov for the latest status.

Public Service Loan Forgiveness (PSLF)

PSLF forgives your remaining federal loan balance tax-free after 120 qualifying monthly payments (10 years) while working full-time for a qualifying employer — government agencies, 501(c)(3) nonprofits, and certain other public-service organizations.

To qualify, you must:

• Have Direct Loans (consolidate FFEL or Perkins loans first)
• Be enrolled in an IDR plan or the 10-year Standard Repayment Plan
• Make 120 qualifying payments (they don't need to be consecutive)
• Work full-time for an eligible employer during each of those payment months

PSLF is one of the most powerful student loan benefits available. If you plan to work in public service, pairing PSLF with the lowest-payment IDR plan (typically SAVE) minimizes your total cost. Submit the PSLF Employment Certification form annually to track your progress.

Should You Refinance?

Refinancing replaces your federal loans with a private loan — often at a lower interest rate. This can save thousands in interest if you have strong credit, a high income, and don't need federal protections. However, refinancing is irreversible: you permanently lose access to IDR plans, PSLF, federal forbearance, and any future federal relief programs.

Refinancing makes sense when: You have a stable, high income; you don't qualify for (or need) PSLF; you want to aggressively pay off your loans; and the rate savings are substantial.

Avoid refinancing if: You're pursuing PSLF; your income is uncertain; you might need IDR flexibility; or you have a relatively small balance that will be paid off quickly under the standard plan anyway.

The Tax Bomb Risk

Under most IDR plans, any balance forgiven after 20–25 years is treated as taxable income by the IRS. This means you could owe a significant federal and state tax bill in the year of forgiveness — often called the "tax bomb."

For example, if $80,000 is forgiven and you're in the 22% federal bracket, you'd owe roughly $17,600 in federal tax alone, plus any applicable state tax. This calculator estimates the tax bomb for each plan so you can plan ahead.

Important exceptions: PSLF forgiveness is tax-free. Additionally, the American Rescue Plan Act (ARPA) temporarily exempted all student loan forgiveness from federal taxes through December 31, 2025. Whether this exemption will be extended is uncertain — plan conservatively and assume forgiven amounts will be taxable.

Sources & Methodology

• IDR plan formulas and eligibility — StudentAid.gov: Income-Driven Repayment Plans
• SAVE plan details — StudentAid.gov: SAVE Plan
• PSLF program requirements — StudentAid.gov: Public Service Loan Forgiveness
• Federal poverty guidelines — HHS ASPE Poverty Guidelines
• Tax treatment of forgiven debt — IRS Publication 4681: Canceled Debts
• SAVE plan final rule — Federal Register: Improving IDR (88 FR 43820)

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