Interest on outstanding principal

Reducing balance

Interest is charged on the remaining loan principal. As you repay, interest cost falls. Contrast with flat-rate quotes.

In simple terms

Interest is charged on the remaining loan principal. As you repay, interest cost falls. Contrast with flat-rate quotes. Use the related calculators below to see the idea in numbers — results are illustrative, not advice.

Related calculators

Related terms

Sources & methodology

  • Verify definitions against official scheme / tax documents — terms and rates can change by notification
  • Aaru Wealth Methodology

Always verify current rates, slabs and scheme rules on official portals. Calculator outputs are illustrative estimates.