INDIA-SPECIFIC BORROWING DECISIONS
One-time Loan Prepayment Calculator
Estimate how an immediate lump-sum principal payment may change remaining payoff time and interest when the regular EMI continues.
Review your result
Your result
Ready when you are.
Enter your values and choose Calculate. Your inputs stay on this device.
How it works
The lump sum reduces principal immediately; both original and reduced balances are then amortised using the same monthly EMI.
Assumptions and limits
Assumes the lender applies the full amount to principal immediately and keeps EMI unchanged. Fees, date rules, term reset, rate changes, and lender allocation can differ.
About this calculator
This scenario compares the existing balance with an immediate principal reduction while holding the monthly EMI constant.
What this tool helps you check
Show how an immediate principal reduction may change payoff time and interest when the EMI is held constant.
How to use it
- Review the formula and assumptions shown for this one-time loan prepayment calculator.
- Enter the current balance, rate, EMI, and lump-sum amount.
- Calculate and compare payoff duration and estimated interest before and after prepayment.
- Ask the lender how part payment is allocated and whether charges or tenure rules apply.
Source and update
Last reviewed: 2026-08-22
Reserve Bank of India — financial education and consumer awarenessFrequently asked questions
What does this one-time loan prepayment calculator calculate?
This scenario compares the existing balance with an immediate principal reduction while holding the monthly EMI constant.
How should I interpret the result?
Compare payoff duration and estimated interest before and after prepayment. The result changes whenever an input or assumption changes.
Is the result official or guaranteed?
Ask the lender how part payment is allocated and whether charges or tenure rules apply.
Keep exploring