Student Loan Calculator

Compare Standard, Extended, Graduated, and Income-Driven student loan repayment plans. Find your monthly payment, payoff date, and total interest for federal and private loans.

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Student Loan Calculator

Compare all repayment plans side by side

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Repayment Plan Comparison

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Federal Student Loan Repayment Plans Explained

With over $1.7 trillion in outstanding student debt in the United States, choosing the right repayment plan is one of the most significant financial decisions a graduate makes. The federal student loan repayment system offers multiple plans — and this calculator shows how each one affects your monthly payment, total interest paid, and payoff date side by side. On a $30,000 balance at 6.5%, the Standard 10-year plan costs $340/month and roughly $10,800 in total interest. Extend that to 25 years and the payment drops to $202/month — but you'll pay over $30,000 in interest, nearly doubling what you borrowed.

Income-driven repayment plans (IDR) cap payments at 5%–20% of discretionary income, which can dramatically reduce monthly obligations for borrowers with high debt-to-income ratios. The SAVE plan (Saving on a Valuable Education) introduced in 2023 is the most generous IDR option, with payments as low as 5% of discretionary income for undergraduate loans. After 20–25 years of qualifying payments, any remaining balance is forgiven — though forgiven amounts may be taxable depending on future IRS rules. Public Service Loan Forgiveness (PSLF) forgives remaining federal loan balances after just 10 years for borrowers working at qualifying government or nonprofit employers.

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Standard 10-Year Plan

Fixed payments over 10 years. Costs the most per month but the least in total interest. Borrowers who can afford the payment should generally choose Standard — it's the fastest path to being debt-free with the lowest total cost.

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Income-Driven Repayment

Payments tied to discretionary income — typically 5%–10%. Ideal for borrowers with high debt relative to income. SAVE, PAYE, and IBR are the most common IDR plans. Unpaid balance is forgiven after 20–25 years of payments.

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Graduated Repayment

Payments start low and increase every two years over 10 years. Useful for new graduates expecting income growth. You'll pay more total interest than Standard, but payments feel more manageable in the early career years.

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Public Service Loan Forgiveness (PSLF)

Work for a federal, state, local government, or qualifying 501(c)(3) nonprofit and make 120 qualifying payments on an IDR plan. Remaining federal loan balance is forgiven tax-free after 10 years of service.

Frequently Asked Questions

Federal student loan rates for 2026-2027 academic year (set annually based on 10-year Treasury + spread): Direct Subsidized/Unsubsidized (undergrad): approximately 6.54% (projected, official rate announced June 2026). Direct Unsubsidized (graduate): approximately 8.09% (projected). PLUS loans (graduate/parent): approximately 9.09% (projected). These fixed rates apply to loans disbursed on or after July 1, 2026. Private student loan rates: 4%-15% depending on credit.
IDR plans cap monthly payments at a percentage of discretionary income (typically 5%-20%). The SAVE plan (Biden-era, legal status uncertain in 2026): 5% of discretionary income for undergrad loans. PAYE and REPAYE: 10% of discretionary income. IBR: 10% (new borrowers) or 15% (older borrowers) of discretionary income. All federal direct loans qualify. After 20-25 years of payments, remaining balance is forgiven (and may be taxable). IDR is ideal when your calculated payment would be lower than the standard 10-year payment.
The mathematical answer: if your student loan rate > expected investment return, pay off loans. If loan rate < expected return, invest. With federal loans at 6.5% and S&P 500 historical return ~10% (7% real): mathematically, invest in index funds while making minimum loan payments. However, behavioral factors matter: psychological freedom from debt, guaranteed return of loan payoff vs. market uncertainty, and risk tolerance all factor in. A practical split: max employer 401(k) match first (100% return), then aggressively pay student loans.
PSLF forgives remaining federal loan balances after 10 years (120 payments) of working full-time for a qualifying government or nonprofit employer while on an IDR plan. Benefits: tax-free forgiveness (unlike standard IDR forgiveness), accelerated timeline. Requirements: Direct Loans only (not FFEL), qualifying employer, IDR plan, 120 on-time payments. After Biden-era PSLF reforms, qualification rates improved significantly — 99% of recent applications are approved vs. 1% before 2021. Use the PSLF Help Tool at studentaid.gov to check employer eligibility.

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