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Should I prepay my home loan or invest the money?

An educational estimate, not financial advice. The result depends on the assumptions below, so check them against your own figures.

Inputs

Your numbersOnly you know these. Change them to get your own answer.

From your latest loan statement.

₹

₹40 lakh

Whole years until the loan ends as it stands today.

years

A bonus or savings you could put into the loan today.

₹

₹5 lakh

Check theseRates that vary by place, bank or person. Use yours if you know them.

Your current rate. Fills from Assumptions if you set it there.

% a year

A year, after tax, on whatever you would invest in. Be honest: this decides most of the answer.

%

Investment returns are not guaranteed. Markets can fall, and can stay down for years. The return used here is an assumption, not a forecast; try lower ones to see how the answer changes.

How equity gains are taxed
  • Held 12 months or less: short-term, taxed at 20% of the gain.
  • Held longer: long-term, taxed at 12.5% of the gains above ₹1,25,000 in a year.
  • Plus 4% cess on the tax. PPF interest is tax-free; FD and RD interest is taxed every year at your slab rate.
  • This tool asks for your return after tax. For an equity fund held for years, that is lower than its return before tax: in the plot vs FD vs fund example, 10% a year before tax keeps about 9.1% a year after tax over 10 years. For a fixed deposit, it is the rate × (1 − your tax rate).

After prepaying, the bank

The loan ends sooner. Once it does, the EMI you no longer pay is invested.

Filled in for youNo yearly amount or charges unless you add them, tax on interest, inflation 6%
Yearly amount and charges

Optional. Put in at the end of each year, into the loan or into investments.

₹ a year

Optional. A share of the amount prepaid, if your loan agreement charges one.

%
Tax on loan interest

Optional. Only if you deduct home-loan interest from taxable income: your tax rate on it.

%

The yearly limit on interest you can deduct under your tax rules. Needed if you enter a tax rate.

₹ a year
Today's rupees

Only used to show the result in today's rupees.

%

Verdict

Prepaying comes out ₹5.66 lakh ahead after 20 years

That is ₹1.77 lakh in today's rupees.

Investing wins if your return after tax is above 9.38% a year.

This answer uses an example loan, amount and return. Put in yours to get your own answer.

Invested after 20 years
  • Prepay₹28.97 lakh
  • Invest₹23.30 lakh
Interest saved by prepaying
₹18.42 lakh
Loan ends
5 years 5 months sooner
Return where they are level
9.38%
EMI today
₹35,989

Both households spend the same each month; neither owes anything at the end.

Saved scenarios

What would flip the answer

Each line changes one input and holds the rest.

  • Investing wins over 20 years if your return is above 9.38%Now: 8%

Not modelled: weigh these yourself

Show the workingEvery step of the sum, with the numbers above.
Show the chart and other returnsHow the gap changes month by month, and the answer if your return is 2 points lower or higher.
Prepay's net worth minus invest's, month by month

At other returns

    Everything else as you entered it.

    Show every monthThe full month-by-month table, with a CSV download.

    How this works

    The tool follows two households with the same money. One puts the amount into the loan and invests whatever that frees up each month: the whole EMI once the loan ends early, or the drop in EMI. The other invests the amount and keeps paying the loan as it is. Both spend the same each month. When the loan's original end date comes, neither owes anything, so the one with more invested is ahead.

    Assumptions and sources

    AssumptionValueSourceAs of
    Home loan rate (default)—Not verifiedtypical home-loan rate, cite bank or RBI data2026-10-19
    Inflation6%CapitalVerdict default assumption from project spec; user-editable, not a forecast2026-10-19

    Questions

    Why compare at the loan's original end date?

    By then both households owe nothing, so what each has invested is its whole position. Comparing earlier would mean weighing a smaller loan against a bigger investment pot, which hides the answer.

    Why does the return after tax matter so much?

    Prepaying earns exactly the loan rate, with no risk and no tax. Investing has to beat that after tax to come out ahead. The tool shows the return at which the two are level.

    Is the tax benefit on home-loan interest included?

    Only if you enter it. Whether you can deduct interest, and up to what limit, depends on your tax regime and the rules for the year, so the tool asks for your tax rate and the limit instead of assuming them. Prepaying lowers the interest, so it can lower this benefit too.

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