About the Home Loan Balance Transfer Calculator
A home loan balance transfer moves your outstanding housing loan to another bank or housing finance company that offers a lower interest rate. This calculator shows whether the switch is worth it: it compares the EMI and total remaining interest at your current rate with the EMI and interest at the new rate over the same remaining tenure, then subtracts the costs of switching.
Switching costs include the new lender’s processing fee (with 18% GST), plus legal, valuation, documentation and stamp duty charges for the fresh mortgage, which vary by lender and state. The result is your net saving and the number of months it takes for the lower EMI to pay back those costs. It is useful for borrowers on older MCLR or base-rate loans, or anyone whose lender has not passed on repo rate cuts.
Before switching, ask your existing lender for a rate revision — many will reprice for a small conversion fee, which avoids most transfer costs. The calculation assumes the new rate stays constant for the rest of the loan and that the tenure is unchanged.
With the default inputs, the net saving after switching costs is ₹323,600.73. Change any value above to recalculate instantly.
How to use the home loan balance transfer calculator
- 1Enter your outstanding home loan balance from your latest statement.
- 2Enter your current interest rate and the remaining tenure.
- 3Enter the interest rate offered by the new lender.
- 4Add the processing fee and one-time legal, valuation and stamp duty charges.
- 5Check the net saving and break-even before applying to switch.
Formula and method
Both EMIs use the standard reducing-balance formula on the same outstanding balance P and the same remaining tenure n (months), with r the monthly rate (annual rate ÷ 12 ÷ 100). Remaining interest at each rate is EMI × n − P, so the gross saving equals the EMI difference multiplied by the months left.
Switching costs are the new lender’s processing fee (fee % × balance, plus 18% GST if selected) and one-time legal, valuation and stamp duty charges. The net saving subtracts these from the gross interest saving. Break-even is switching cost ÷ monthly EMI saving, rounded up to whole months. Savings are not discounted for the time value of money.
- P
- Outstanding loan balance being transferred
- r
- Monthly interest rate (annual % ÷ 12 ÷ 100)
- n
- Remaining tenure in months
Worked examples
₹40 lakh moving from 9.25% to 8.4% with 15 years left
At 9.25% the EMI on ₹40 lakh over 180 months is ₹41,167; at 8.4% it is ₹39,155, saving ₹2,012 a month or about ₹3.62 lakh over the tenure. Switching costs are ₹20,000 processing fee + ₹3,600 GST + ₹15,000 charges = ₹38,600, so the net saving is about ₹3.24 lakh and break-even comes after 20 months.
Small rate gap with 5 years left
Moving ₹15 lakh from 8.9% to 8.6% with five years left saves only ₹218 a month, or about ₹13,059 in total. Switching costs of ₹18,850 exceed that, so the transfer loses about ₹5,792 — asking your lender to reprice is better.
Frequently asked questions
When is a home loan balance transfer worth it?+
It usually pays when the rate difference is meaningful (often 0.5 percentage points or more) and many years remain, because most of the interest is still ahead of you. Late in the loan the remaining interest is small and switching costs can wipe out the saving.
What charges apply on a home loan balance transfer?+
The new lender charges a processing fee (commonly up to 0.5%–1% of the loan, plus 18% GST) along with legal, valuation and documentation fees. Many states also charge stamp duty on the new mortgage deed or memorandum of deposit of title deeds.
Does my current bank charge a foreclosure fee?+
RBI rules do not allow banks and NBFCs to levy foreclosure or prepayment charges on floating-rate home loans taken by individuals for non-business purposes — under the 2025 Pre-payment Charges Directions for loans sanctioned or renewed from 1 January 2026, and earlier RBI circulars for older loans. Fixed-rate loans may carry a charge, so check your sanction letter.
Should I ask my bank to reduce the rate instead?+
Yes. Many lenders will move you to their current lending rate for a one-time conversion fee, which is often far cheaper than a transfer and needs no new paperwork or property valuation.
Can I take a top-up loan with a balance transfer?+
Most lenders offer a top-up loan along with a balance transfer, but it increases the loan amount. Compare only the transferred balance when judging whether the lower rate saves money.
Results are estimates for educational purposes and are not financial advice. Rates, fees and terms vary — confirm with your lender or a licensed advisor before making decisions.