Why the rate is higher, and by how much
The technique
Risk pricing: the rate covers the loans that do not come back
A lender's unsecured book loses a share of principal every year to defaults it cannot recover, and that expected loss is spread across every borrower who does pay, as rate. On a secured loan the lender can sell the asset, so the expected loss is smaller and the rate follows. Your own credit profile moves you within the unsecured band; it does not move you out of it.
Take ₹5,00,000 over 36 months. Here is what the same principal costs across illustrative rates, secured and unsecured, and what each row pays over the 9 percent line.
| Rate | Type | EMI | Total interest | Against 9% |
|---|---|---|---|---|
| 9% | Secured | ₹15,900 | ₹72,395 | — |
| 10% | Secured | ₹16,134 | ₹80,809 | +₹8,414 |
| 12% | Unsecured | ₹16,607 | ₹97,858 | +₹25,462 |
| 15% | Unsecured | ₹17,333 | ₹1,23,976 | +₹51,581 |
| 18% | Unsecured | ₹18,076 | ₹1,50,743 | +₹78,348 |
- The monthly gap between 12 and 9 percent is ₹707. That is why a three-point premium never feels like ₹25,462 on the day you sign
- The premium grows faster than the rate. Six points over 9 percent is not double the cost of three points: it is ₹51,581 against ₹25,462, because more of each EMI goes to interest and the balance falls more slowly






