Should You Prepay Your Home Loan or Invest the Money? (India, 2026)
A bonus lands, or an old investment matures, and the question arrives with it: put it into the home loan, or into the market? Every bank calculator will answer the first half. Type in a prepayment and it will tell you how much interest you save, and the number is always large and always persuasive.
It is also not the answer, because it never asks what the money would have done instead. Interest saved is a real gain, but so is the return on money left invested, and the two have to be compared over the same period on the same terms. This page does that comparison properly, and finds the return at which the answer flips.
The example
A ₹64 lakh home loan at 8.25% over 20 years. That is an EMI of ₹54,532 and total interest of ₹66,87,728 if it runs the full term. Three years in, the borrower has ₹5 lakh spare, and the outstanding balance is ₹59,71,458.
Two options. Prepay the ₹5 lakh into the principal, keeping the EMI the same so the tenure shortens. Or invest the ₹5 lakh and let the loan run.
What prepaying does
Putting ₹5 lakh into the principal at year three closes the loan in month 207 instead of month 240. The tenure shortens by 33 months, and the interest saved is ₹13,08,051.
That figure is correct, and it is the one every bank calculator shows. A ₹5 lakh outlay returning ₹13.08 lakh looks unanswerable. Which is exactly why it is worth slowing down, because the comparison it invites is the wrong one.
Why "₹13 lakh saved" is not the comparison
The ₹13.08 lakh is not received at year three. It is spread across the following seventeen years, mostly as EMIs you no longer have to pay in years eighteen through twenty. Money that arrives in 2043 is not worth the same as money invested in 2029.
The investing side has the mirror problem. If you invest the ₹5 lakh instead, it compounds for the full seventeen years, but you also carry an EMI for 33 months longer than you otherwise would.
The only fair way to settle it is to run both paths to the same finish line, month 240, and ask what each leaves you holding:
- Prepay, then invest the freed EMI. The loan closes at month 207. From month 208 to 240 there is no EMI, so that ₹54,532 a month goes into investments for 33 months.
- Invest the lump, keep paying. The ₹5 lakh compounds from month 36 to month 240, and the EMI runs the full term.
Both paths spend exactly the same money each month. Now the returns can be compared.
The comparison, at three return rates
| Return on investments | Prepay, then invest freed EMI | Invest the ₹5 lakh | Better path |
|---|---|---|---|
| 8% | ₹20,08,213 | ₹18,50,009 | Prepay, by ₹1,58,204 |
| 10% | ₹20,60,262 | ₹25,27,235 | Invest, by ₹4,66,973 |
| 12% | ₹21,13,125 | ₹34,33,020 | Invest, by ₹13,19,896 |
The answer is not fixed. It turns entirely on what you earn on the money, and it turns at a specific point.
The break-even: 8.57%
On these numbers the two paths are worth exactly the same when investments return 8.57% a year. Below that, prepaying wins. Above it, investing wins.
Notice that the break-even sits slightly above the 8.25% loan rate rather than exactly on it. The intuition that "prepaying earns you a guaranteed return equal to your interest rate" is very nearly right, and it is the single most useful rule of thumb in this whole area. The small gap comes from timing: prepaying converts a lump sum today into a stream of freed EMIs starting seventeen years from now, and that delay costs a little.
So the practical question is not "will the market beat 8.25%" but "will it beat roughly 8.5%, after tax, reliably, over seventeen years". Which is a genuinely harder question than it first appears.
The part the arithmetic understates
Two things push in favour of prepaying that the table above cannot show, and they matter more than the rupee gaps at moderate return rates.
The prepayment return is certain; the investment return is not. The 8.25% you save is contractual. The 10% or 12% is an expectation drawn from long-run index returns, and long-run averages are made of decades that badly underperform them. Equity has returned 10% to 12% over long periods in India, with the usual caveat that past returns are not a promise. Comparing a certain 8.25% with an uncertain 11% and picking the higher number is not a fair comparison; the certain one deserves a premium.
Prepaying only works if you actually invest the difference later. The prepay path in the table assumes the borrower diligently invests ₹54,532 every month for 33 months once the loan closes. In practice a household whose EMI has just ended tends to absorb that money into its standard of living. If the freed EMI is not invested, the prepay path is worse than the table says, and this is where most of the theoretical advantage of investing quietly disappears too, because the same discipline problem applies to anyone who plans to invest a lump sum for seventeen years.
Against that, one thing pushes in favour of investing: liquidity. Money in a mutual fund can be redeemed in days. Money in your principal cannot be got back without a fresh loan, at a higher rate, if you need it at all. For a household without a solid emergency fund, prepaying is the wrong first use of a windfall regardless of what the arithmetic says.
Tax, briefly
The figures here are pre-tax, consistent with the rest of this site, but tax moves this decision in both directions and is worth naming.
If you claim Section 24(b) interest deduction on a self-occupied property under the old regime, up to ₹2 lakh a year, prepaying reduces the interest you pay and therefore the deduction you claim, which lowers the effective saving. Under the new regime, which has been the default since FY 2023-24, that deduction is not available on a self-occupied home at all, so this consideration disappears for most borrowers.
On the other side, equity gains are taxed on redemption, so a 12% gross return is not a 12% return in hand. Since the right adjustment depends on your regime, your slab, and your holding period, the sensible approach is to work out both post-tax figures for your own situation rather than to take a pre-tax comparison as final.
So what should you do?
The arithmetic supports a reasonably clear order of operations, and none of it depends on predicting the market:
- Emergency fund first. Six months of expenses, liquid, before a rupee goes into either option.
- Clear anything costing more than the home loan. Personal loans and card balances at 12% to 40% make this question irrelevant until they are gone.
- Then compare against roughly 8.5%. If you genuinely expect to beat it after tax and can hold through the bad years, invest. If you are not sure, prepay and take the certain return.
- Prepay early if you prepay at all. The same ₹5 lakh at year three saves far more than at year fifteen, because early EMIs are mostly interest. How an EMI is built explains why the split shifts.
- Shorten the tenure, not the EMI. Most lenders offer both. Keeping the EMI and cutting the term is what produces the ₹13.08 lakh above; reducing the EMI instead gives back most of the benefit.
One more thing worth checking before any of this: whether your rate is competitive at all. Floating-rate home loans have no prepayment penalty for individual borrowers under RBI rules, and if your rate has drifted above the market, a lower rate may be worth more than the prepayment. Floating versus fixed rates covers how the rate moves and what you can do about it, and the EMI Calculator shows what a quarter-point is worth on your loan.
And if the underlying question is whether you should be carrying this much property at all, that is a different calculation: the Rent vs Buy Calculator compares owning against renting and investing the difference, and how much home your salary supports sets the ceiling.
Prepayment questions, answered
Is it better to prepay a home loan or invest?
It depends on the return you can earn. On a ₹64 lakh loan at 8.25%, the two are equal at a 8.57% return; below that prepaying wins, above it investing wins. Because the prepayment return is certain and the investment return is not, the certain one deserves a premium beyond the raw arithmetic.
How much interest does prepaying a home loan save?
A ₹5 lakh prepayment at year three of a 20-year ₹64 lakh loan at 8.25% saves ₹13,08,051 in interest and closes the loan 33 months early, provided you keep the EMI the same rather than reducing it.
Should I reduce the EMI or the tenure when prepaying?
Shorten the tenure. Keeping the EMI unchanged is what produces the large interest saving; cutting the EMI instead keeps you in the loan for the full term and gives back most of the benefit.
Is there a penalty for prepaying a home loan in India?
Not on floating-rate loans taken by individual borrowers, where RBI prohibits foreclosure charges. Fixed-rate loans may carry a prepayment penalty, so check the sanction letter before making a lump-sum payment.
When is the best time to prepay?
As early as possible. Early EMIs are mostly interest, so a prepayment in year three removes far more future interest than the same amount in year fifteen. After roughly the midpoint of the tenure, the case for prepaying weakens considerably.