Income-Driven Repayment (IDR) Calculator
Estimate IDR monthly payment and forgiveness horizon based on AGI, family size, poverty guideline and % of discretionary income.
How to use
- Enter AGI, family size and poverty guideline.
- Choose % of discretionary income (e.g., 10%).
- Set balance, APR and forgiveness term if needed.
Formulas
- Discretionary income = max(0, AGI - k·Poverty).
- Monthly payment = rate% · discretionary / 12.