When should you prepay a home loan?
The best time to prepay is the first half of your loan's life. That is when the EMI is still mostly interest, and a single unit of principal removed compounds into many units of saved interest. If you're past the midpoint, prepayment still helps, but the leverage shrinks each year.
Don't prepay if it means draining your emergency fund. Three to six months of expenses, liquid and untouched, comes first. Prepayment second.
Should you invest or prepay?
The math is unromantic. Subtract tax from your expected investment return. If that net number is meaningfully higher than your home loan rate, say, by 2 percentage points or more, invest. If it isn't, prepay. With home loan rates above 7% in 2026, the bar for "investing wins" is high.
For most people, the right answer is "both, but not equally." A 70/30 split toward prepayment for risk-averse savers, or 30/70 toward investing for younger earners with high risk tolerance, are both reasonable.
Does early prepayment save more interest?
Dramatically. A prepayment in year 2 of a 20-year loan at 8.5% saves several multiples of what the same amount saves in year 18. Time is the multiplier, and the calculator above quantifies your specific case.
What happens after a part payment?
By default, most banks keep your EMI the same and reduce your loan tenure. Your interest schedule is recomputed, and you'll see your "remaining tenure" drop in the next statement. If you'd prefer the bank to reduce your EMI instead of the tenure, you typically need to request that in writing.
Common prepayment mistakes
- Draining your emergency fund to prepay.
- Prepaying instead of clearing higher-rate debts (credit cards, personal loans) first.
- Reducing EMI when tenure reduction would save more.
- Forgetting to get a fresh amortization schedule after each prepayment.
- Ignoring the lost tax shield when you finally calculate "savings" — it's small, but real.