Old IBR
Calculator
Calculate your monthly student loan payment under the legacy Income-Based Repayment plan. Uses 15% of discretionary income with 25-year forgiveness, plus PSLF comparison and tax bomb analysis.
Old IBR Calculator
Pre-2014 Income-Based Repayment Plan
Your Monthly IBR Payment
$269.06/ monthSaving $110.78/mo vs. standard plan
150% FPL
$23,475
Discretionary Income
$21,525
Standard 10-Yr Payment
$379.84
Total Paid (25 yrs)
$48,529
PSLF Alternative (10-Year)
If you work for a qualifying employer, PSLF forgives your balance after 120 payments (10 years) — tax-free.
10-Year Total Paid
$40,747
PSLF Forgiven (Tax-Free)
$7,411
Based on the pre-July 2014 IBR formula (15% of discretionary income, 25-year forgiveness). Uses 2026 HHS poverty guidelines. This is an estimate — contact your loan servicer for exact payment amounts.
How the Old IBR Calculator Works
Enter Income & Family
Input your Adjusted Gross Income (AGI) and household size to determine your Federal Poverty Level threshold.
Find Discretionary Income
The calculator subtracts 150% of FPL from your AGI. Your IBR payment is 15% of this discretionary income.
Add Loan Details
Enter your total loan balance and weighted average interest rate. The calculator caps IBR at the standard 10-year payment.
See Full Projection
View your monthly payment, 25-year amortization schedule, forgiveness amount, tax bomb estimate, and PSLF comparison.
Old IBR Key Concepts
15% Formula
Under the old IBR plan, your monthly payment is 15% of discretionary income divided by 12. This is higher than the new IBR (10%) but lower than the standard 10-year plan for most borrowers.
25-Year Forgiveness
Any remaining balance after 25 years of qualifying payments is forgiven. Unlike PSLF, this forgiveness is currently treated as taxable income (the "tax bomb").
Payment Cap
Your IBR payment is capped at the standard 10-year repayment amount. As your income grows, you never pay more than the standard plan would require.
Federal Poverty Level
The FPL is set by HHS annually. Your state (lower 48, Alaska, or Hawaii) affects the threshold. 150% of FPL is subtracted from AGI to find discretionary income.
PSLF Alternative
Public Service Loan Forgiveness offers tax-free forgiveness after only 10 years (120 payments) for qualifying public-sector employees — a much better deal if you qualify.
Income Growth Impact
As your income grows, so does your IBR payment. The calculator models annual income growth to project how your payments and remaining balance evolve over 25 years.