Early prepayment usually helps more
Making the lump sum while the balance is still large tends to save more future interest.
Prepayment Calculator
Calculate impact of prepayment on loan & interest
Prepayment Summary
Original Interest ₹0
New Interest ₹0
Interest Saved ₹0
New Interest (0%)
Interest Saved (0%)
Revised Remaining Tenure
0 months
Interest Saved
₹0
Original Left Interest
₹0
Enter your loan assumptions to see your prepayment summary.
Loan Payoff After Prepayment
See how the outstanding balance falls month by month after the lump-sum prepayment is applied.
Principal repaid
Remaining balance
Enter loan amount, rate, tenure, EMI, and prepayment to see the balance path after the lump sum is applied.
Schedule insight
₹0 saved across 0 years
Cash-flow insight
Payoff pattern will appear here.
What is Prepayment Calculator?
A prepayment calculator estimates how a one-time lump-sum payment toward your loan principal can reduce the remaining tenure and total interest cost, while keeping your EMI unchanged.
How Prepayment Calculator Works
The calculator first applies your lump-sum prepayment to reduce the outstanding balance. It then recalculates the interest and principal split for each EMI, showing how the loan closes faster and how much interest is saved compared to the original schedule.
The new loan tenure is recalculated based on the reduced balance while keeping EMI constant.
Formula
This formula assumes the EMI remains unchanged after prepayment.
New Balance = Original Balance - Prepayment
For each month after prepayment:
- Interest = Remaining Balance × Monthly Rate
- Principal = EMI - Interest
- New Balance = Previous Balance - Principal
Where:
- EMI = Fixed monthly installment
- Monthly Rate = Annual Rate / 12 / 100
- Prepayment = One-time lump-sum payment
Benefits
- Shows how much interest you can save by prepaying part of your loan.
- Helps you plan the best timing and amount for prepayment.
- Lets you compare the impact of different prepayment amounts.
- Improves financial planning by showing the new loan closure date.
- Highlights the value of early prepayment for maximum savings.
Quick Insights
Prepayment is most useful when it cuts future interest without putting short-term liquidity under pressure.
Loan rules still matter
Fees and lender restrictions can reduce the practical benefit even when the math looks attractive.
Keep emergency cash intact
Prepaying should not leave you short on cash for near-term obligations or emergencies.
More Loan Calculators
Related loan tools users often explore while comparing repayment structure, eligibility, and total borrowing cost.
EMI Calculator
Start with installment estimates, then compare how prepayment changes the repayment path.
Loan Tenure Calculator
Work backward from EMI to see how long the remaining loan can last.
Balance Transfer Calculator
Compare whether moving the loan to a lower rate can beat prepayment savings.
EMI Affordability Calculator
Estimate the EMI range your monthly income can support without stressing cash flow.
Flat vs Reducing Rate Calculator
See how quoted flat rates compare with reducing-balance pricing in actual loan cost.
Interest Rate Calculator
Reverse-calculate the likely rate from amount, EMI, and repayment period.
Loan Eligibility Calculator
Check how income and existing EMIs affect the loan size you may qualify for.
Part Payment Impact Calculator
Measure how one-time partial repayments change tenure, EMI burden, and total interest.
Amortization Schedule Calculator
Study the month-by-month split to judge whether prepaying now is likely to save materially more interest.
Related Questions About Prepayment
Common checks that help borrowers decide whether to reduce the loan balance now or preserve cash for other priorities.
How different is prepayment from part payment?
The calculations are similar, but lender handling and the exact loan outcome can vary based on product rules.
Explore calculator →When is the loan still expensive enough to prepay early?
Schedule data helps show whether a large interest-heavy phase is still ahead.
Explore calculator →Could a lower rate beat the value of prepayment?
Refinancing may sometimes compete with prepayment if fees are reasonable and enough tenure remains.
Explore calculator →Is the present EMI already too tight to prepay comfortably?
Review the monthly burden first so extra payments do not damage near-term financial flexibility.
Explore calculator →