EMI vs Total Interest: The Number Lenders Don't Advertise

Ask a lender what a loan costs and you will be told the instalment. It is a useful number for budgeting and a terrible number for comparison, because tenure hides inside it.

Take two offers on 800,000. Offer A charges 9% for 12 years and asks 9,067 a month. Offer B charges 10.25% for 20 years and asks 7,857. Offer B looks cheaper by 1,210 every month. Over the full term, A repays 1,305,600 while B repays 1,885,700 — the 'cheaper' loan costs 580,000 more.

The reason is visible in the amortisation split. Interest each month equals the outstanding balance multiplied by the monthly rate, so anything that keeps the balance high for longer multiplies the total. Stretching a term does exactly that.

A practical habit: before signing, write down instalment × months and subtract the amount borrowed. That single subtraction is the true price of the credit, and it is the figure that changes decisions.

One caveat worth respecting. A lower instalment genuinely buys safety. If your income is volatile, the longer loan with a prepayment clause can be the smarter risk decision even though it is the more expensive one on paper — provided you actually prepay when cash allows.