Refinance Calculator
Find out if refinancing your loan saves money. Compare your current loan against a new rate and tenure to see your monthly savings and break-even point.
What is a Refinance Calculator?
A Refinance Calculator helps you determine whether switching your existing loan to a new lender or negotiating a lower interest rate makes financial sense. Refinancing — known in India as a balance transfer for home loans — involves paying off your current loan with a new loan at better terms, typically a lower interest rate. This calculator compares your current and potential new loan to show monthly savings, total interest savings, and the break-even point — the number of months it takes for cumulative savings to outweigh refinancing costs.
With interest rates fluctuating in India based on RBI's repo rate decisions, borrowers who took loans during high-rate periods may now qualify for significantly lower rates. Even a 1% reduction in rate on a ₹30,00,000 outstanding home loan saves approximately ₹2,200 per month and over ₹3,96,000 in total interest over the remaining tenure. Use this calculator alongside our Balance Transfer Calculator for a complete analysis of switching costs and savings, and our Loan Amortization Calculator to compare the full remaining schedules of both loan options.
How to Use This Refinance Calculator
- Enter Outstanding Balance: Your current remaining loan amount — available on your latest loan statement or bank app.
- Enter Current Rate: Your existing loan's annual interest rate.
- Enter New Rate: The rate offered by the new lender or your existing bank after negotiation.
- Enter Remaining Tenure: How many months are left on your current loan.
- Click Calculate: See your monthly savings, total interest savings over the remaining tenure, and estimated break-even months (assuming ~1% processing fee on the new loan).
When Does Refinancing Make Financial Sense?
Refinancing is not always the right move. Here is a practical framework to decide:
| Factor | Favours Refinancing | Against Refinancing |
|---|---|---|
| Rate Difference | More than 0.75–1% | Less than 0.5% |
| Remaining Tenure | More than 5 years | Less than 3 years |
| Outstanding Balance | More than ₹20 lakh | Less than ₹5 lakh |
| Processing Fees | Break-even under 24 months | Break-even over 36 months |
| Loan Type | Floating rate (no penalty) | Fixed rate with high prepayment penalty |
The break-even point is the most important metric. If you plan to sell the property or close the loan before the break-even month, refinancing costs more than it saves.
Costs to Consider When Refinancing in India
Refinancing involves several charges that must be factored into your savings calculation. The new lender typically charges a processing fee of 0.5–1% of the loan amount. Legal and technical verification charges for the property may apply. Stamp duty on the new loan agreement varies by state. Your existing lender may charge a foreclosure fee for fixed-rate loans (floating-rate home loans have no foreclosure penalty by RBI mandate). In total, refinancing a ₹30,00,000 loan can cost ₹15,000–₹50,000 in one-time charges. This is why break-even calculation is essential — enter these actual costs into our Balance Transfer Calculator for a precise payback period. Also compare your new monthly EMI using our Monthly Payment Calculator to verify the new lender's figures.
Refinancing vs Prepayment — Which Saves More?
Sometimes making a lump sum prepayment on your existing loan saves as much or more than refinancing — without any processing costs or paperwork hassle. Use our Loan Amortization Calculator to model how a prepayment would reduce your remaining tenure and interest, then compare this with the refinancing savings from this calculator. If the prepayment savings exceed the refinancing savings after costs, prepayment is clearly better. If you have both options available — a lower rate elsewhere AND spare cash for prepayment — combining both strategies after refinancing can dramatically accelerate loan repayment. For comprehensive debt management strategy, our Debt Payoff Calculator helps prioritise all loan repayments optimally.