How Much Should You Prepay on Your Home Loan?
Short version: Prepay as much as you can after setting aside 3–6 months of expenses in an accessible emergency fund — there's no fixed "right percentage" of the loan. Every rupee prepaid earns a guaranteed return equal to your loan rate, so the real question isn't "how much" in isolation, it's "what else would this rupee do, and do I need it liquid?" Once your emergency fund is solid, the marginal rupee almost always goes further prepaying a floating-rate loan than sitting idle.
Start with the one hard rule: emergency fund first
Before you prepay anything, make sure you have 3–6 months of essential expenses in a liquid, accessible account — a savings account or liquid fund, not locked into your home loan. Prepayment reduces your outstanding principal, but it doesn't give that money back to you quickly or cheaply if you need cash unexpectedly; getting it back out means a fresh loan, a personal loan at a much higher rate, or a top-up, all worse deals than the interest you saved. This single rule prevents the most common regret with aggressive prepayment.
After that, think in terms of the marginal rupee
Once your emergency fund is funded, every additional rupee you have is a choice: prepay, invest, or spend. For a rupee sitting in a low-yield savings account, prepaying almost always wins, because:
- Your guaranteed return from prepayment equals your loan's interest rate — for a typical floating home loan at 8.5–9.5%, this beats a savings account (usually 3–4%) or most short-term fixed deposits after tax, by a wide margin.
- There's no market risk — unlike equities, the "return" from prepayment doesn't fluctuate.
- Under the RBI's 2026 rule, floating-rate individual borrowers pay no prepayment penalty, so there's no friction cost eating into the saving.
The comparison changes if the alternative is a long-term equity SIP with a higher expected return — see our prepay vs SIP breakdown for that trade-off specifically.
A worked example: three different surplus levels
Take a ₹50 lakh loan at 9% for 20 years, EMI about ₹44,986.
- ₹1 lakh surplus: After your emergency fund is intact, prepaying ₹1 lakh in year 2 saves roughly ₹2.5–3 lakh in interest over the life of the loan and shaves several months off the tenure — a strong, low-risk use of a modest surplus.
- ₹5 lakh surplus (e.g. a bonus): Prepaying the full ₹5 lakh in year 2–3 can save well over ₹10 lakh in total interest and multiple years of tenure, since interest is front-loaded and this is a large chunk of principal removed early.
- A very large surplus (e.g. ₹20 lakh from a bonus or asset sale): Here it's worth asking whether prepaying the entire amount is optimal, or whether splitting it — some to prepayment, some retained as liquid investments — better matches your risk tolerance and near-term plans (a home upgrade, a large expense, retirement contributions).
Reduce EMI or reduce tenure?
Whatever amount you prepay, you'll usually be asked to choose: keep the EMI the same and shorten the tenure (saves the most total interest), or keep the tenure the same and lower the EMI (eases monthly cash flow). If you don't urgently need the monthly relief, reducing the tenure saves more interest for the same prepaid amount — see our reduce EMI guide if cash flow is genuinely tight instead.
Is there ever a reason to prepay less than you can?
Yes — a few legitimate reasons to hold back some surplus rather than prepaying the maximum:
- You're still building your 6-month emergency fund — finish that first.
- You have higher-interest debt (credit cards, personal loans) — clear those before touching the home loan, since their rates are almost always higher.
- You have a near-term large expense planned (education, a medical event, a planned move) where you'll need the cash back within a year or two.
- You genuinely believe you can earn a higher risk-adjusted return elsewhere and are comfortable with that risk — in which case, model it explicitly rather than assuming.
The practical rule of thumb
Fund your emergency reserve, clear any higher-interest debt, then prepay as much of your remaining surplus as you're comfortable parting with — there's no fixed percentage that's "correct" for everyone. Run your specific numbers in the PrepayWise prepayment calculator to see exactly how much interest and tenure a given prepayment amount saves on your loan.
Frequently asked questions
Is there an ideal percentage of my home loan I should prepay each year? No fixed percentage is universally right — it depends on your surplus, your emergency fund status, and any higher-interest debt. The consistent principle is: fund your emergency reserve and clear costlier debt first, then prepay as much of what's left as you're comfortable committing.
Should I use my entire bonus to prepay my home loan? Only after your emergency fund is solid and you don't have a known near-term need for that cash. If those boxes are checked, using most or all of a bonus to prepay is one of the most effective single moves you can make, especially early in the loan.
Does it matter when in the loan I prepay a given amount? Yes — prepaying earlier saves more interest for the same rupee amount, because interest is front-loaded on a reducing-balance loan. A ₹1 lakh prepayment in year 2 saves meaningfully more than the same ₹1 lakh prepaid in year 15.
What if I can't decide between prepaying and investing the surplus? Compare your loan's interest rate (after any tax benefit) against the realistic, risk-adjusted return of the alternative investment. For most floating-rate loans, prepayment's guaranteed return is hard to beat without taking on meaningful market risk.
Educational content, not individual financial advice.