The True Repayment Cost Across Plans
Repayment costs across plans for $100,000 student loan balance at 6.5%
| Plan | Monthly Payment | Total Paid | Interest Cost | Total vs. Borrowed |
|---|---|---|---|---|
| Standard 10-year (6.5%) | $1,134 | $136,080 | $36,080 | 136% of borrowed |
| Graduated 10-year | $635 → $1,905 | $139,200 | $39,200 | 139% of borrowed |
| Extended 25-year | $674 | $202,200 | $102,200 | 202% of borrowed |
| SAVE IDR ($55K income) | $236/mo est. | $56,640 (20yr) + forgiveness | Depends on forgiven amount | Varies |
| Aggressively paid (5yr, extra $1K/mo) | $2,134 | $128,040 | $28,040 | 128% of borrowed |
The Opportunity Cost: Wealth Not Built
A borrower paying $1,134/month in student loans for 10 years vs. investing that amount: student loan path = $0 invested in 10 years (all to loans). Investment path at 7%: $1,134/month = $193,000 after 10 years. The true cost of $100K in student loans isn’t just $36,080 in interest — it’s $157,000+ in foregone investment wealth (the difference between $193K and the $36K in interest).
$100,000 in student loans at 6.5%, paid over 10 years: total paid = $136,080. If instead that $136,080 was invested at 7% over 30 years: $1.19 million. The student loans cost not just $36,080 in interest but over $1 million in opportunity cost compounded over a career.
The PSLF Salvation for $100K Borrowers
For $100K borrowers at qualifying employers: SAVE plan at $55K income = ~$236/month × 120 payments = $28,320 total. PSLF forgives remaining ~$80,000+ tax-free. Savings vs. standard plan: $136,080 - $28,320 = $107,760 saved. PSLF is transformative for high-balance borrowers at qualifying employers.
Calculate Your $100K Student Loan True Cost
Enter your balance and income — see the total cost across all repayment plans and the PSLF value if applicable.