How to evaluate a loan balance transfer
A balance transfer moves an outstanding loan to a lender offering a lower rate. The saving is real, but it is not the difference in headline rates — it is the difference in the interest you will still pay from today onward, minus the cost of switching.
Two things decide whether a transfer is worthwhile: how much principal is still outstanding, and how many months remain. A transfer late in the tenure rarely pays for itself, because most of the interest has already been charged.
Worked example
An outstanding balance of 25,00,000 with 15 years remaining, being moved from 9.5% to 8.5%, with switching costs of 30,000.
| Input | Value |
|---|
| Outstanding balance | 25,00,000 |
| Remaining tenure | 15 years |
| Current rate | 9.5% |
| New rate | 8.5% |
| EMI before / after | 26,106 / 24,618 |
| Monthly saving | 1,488 |
| Switching costs | 30,000 |
| Break-even | about 20 months |
The transfer only pays off if you keep the loan beyond the break-even point. Held for the full 15 years the saving approaches 2.4 lakh; sold or refinanced within two years, it is a net loss.
How to use this calculator
- Get the exact outstanding principal from your current lender, not the original loan amount.
- Enter the remaining tenure in months.
- Enter both the current and offered interest rates.
- Add every switching cost — processing, legal, valuation and any prepayment penalty.
- Compare the break-even period against how long you actually intend to keep the loan.
Frequently asked questions
When is a balance transfer worth doing?
Broadly, when a meaningful rate gap coincides with substantial remaining tenure and modest switching costs. The larger the outstanding balance and the longer the time left, the more a given rate difference is worth.
What costs are involved?
Typically a processing fee on the new loan, legal and valuation charges, and possibly stamp duty or a prepayment penalty on the old one. Floating-rate loans often cannot be charged a prepayment penalty; fixed-rate loans frequently can.
Does a transfer affect my credit score?
There is usually a small temporary dip from the new credit enquiry and the closure of the old account. Consistent repayment on the new loan normally restores it within a few months.
Can I get a top-up loan during a transfer?
Many lenders offer one, and the rate is typically far below an unsecured personal loan. Just remember it increases your outstanding principal and can extend the tenure, which offsets part of the transfer saving.
Is it worth transferring late in the tenure?
Usually not. In the final years an EMI is mostly principal repayment, so there is little remaining interest for a lower rate to reduce — and the switching costs are unchanged.
This calculator is an educational tool. Results are estimates based on the inputs you provide and do not constitute financial advice. Verify figures with your bank, broker or a qualified advisor before acting on them.