Understanding Loan Repayment
When you take a loan, each monthly payment (EMI) consists of two parts: principal repayment and interest. In the early years, most of your payment goes toward interest. As you pay down the principal, the interest portion decreases and more goes toward reducing your loan balance. This is called amortization.
How EMI is Calculated
EMI = P × r × (1+r)^n / ((1+r)^n - 1), where P = principal, r = monthly rate, n = total months. For a $500,000 loan at 7.5% for 20 years, the monthly EMI is approximately $4,026. Over the loan term, you'll pay $466,240 in interest — nearly as much as the original loan.
Strategies to Reduce Interest
Make extra payments toward principal when possible. Even small additional payments can save thousands in interest and shorten your loan term significantly. Refinancing when rates drop, making bi-weekly payments instead of monthly, and rounding up your EMI are all effective strategies.