Bonus in Hand: Pay Down the Home Loan or Invest It?

Windfalls tend to arrive in the same months as EMIs keep leaving. Bonus pay, a deposit that has matured or proceeds from selling shares can shrink a home loan in Bangalore straight away, or flow into an investment that is expected to grow. The right answer depends on three things: what each option earns after tax, how far into the loan the borrower is and how secure the household's finances already are.

What one rupee of part-payment earns

Every rupee paid towards principal stops attracting interest from the following day. It therefore yields exactly the loan's rate. If the rate is 8.5%, the yield is 8.5% a year until the date the loan was due to end.

The yield is unusual for two reasons. Market swings cannot lower it, and the taxman ignores it, since money not paid as interest is not income.

The hurdle for the alternatives

A fair comparison sets the loan rate against the return left after tax. Consider a borrower in the 30% bracket and work out what each product must earn before tax to match the loan's 8.5%:

• Paying down the loan: 8.5%, certain and untaxed
• Bank fixed deposit: interest is taxed at 31.2% including cess, so the deposit would have to pay about 12.4%
• Equity mutual funds kept beyond a year: 12.5% tax plus cess applies to gains over Rs. 1,25,000 in a year, so about 9.8% is needed before tax

Bank deposits do not pay 12.4%, which means they lose to part-payment for anyone in the upper brackets. Equity funds can clear 9.8% across long periods, although some years bring deep losses and nothing is guaranteed. The real contest is a sure 8.5% against a return that must average nearly 10% a year, or better.

Why the date of the payment matters

The return is identical in the second year and the twelfth. What differs is how long it keeps being earned, and an early payment keeps earning it far longer. For an illustration, picture Rs. 75,00,000 borrowed for two decades at 8.5%.

Instalments come to about Rs. 65,087 a month, with total interest of about Rs. 81,21,000 over the term. During year one the borrower pays roughly Rs. 6,32,000 as interest, and just Rs. 1,49,000 goes against principal. Imagine an extra Rs. 5,00,000 paid with the EMI kept as it is.

• At the close of year 2, it ends the loan 31 months early and avoids about Rs. 15,57,000 of interest
• At the close of year 12, it ends the loan 14 months early and avoids about Rs. 4,39,000 of interest

To equal the first result, the same Rs. 5,00,000 would have to compound after tax at 8.5% for 18 years, reaching about Rs. 21,70,000. An early investment has the time to recover from poor years, while one made late has little. The certain saving therefore grows in importance as the loan ages.

Tax regime: old versus new

Under the default new regime, interest on a self-occupied home brings no deduction. The loan then costs its full rate, so paying it down sacrifices nothing.

The old regime permits a deduction of up to Rs. 2,00,000 a year. On the loan above, each year's interest is over that sum until year 18, so a payment made earlier only wipes out interest that exceeded the cap. The deduction survives and the whole 8.5% is saved.

The deduction comes into play only with a small loan, or in the final years of a large one. Once a whole year's interest is lower than Rs. 2,00,000, every rupee of interest avoided also costs a rupee of deduction. In the 30% bracket the loan's true cost sinks to roughly 5.8%, and a safe investment may well come out ahead.

Fees and practicalities

RBI rules stop lenders from charging a fee when an individual prepays a floating rate loan taken for a non-business purpose. Under its 2025 directions this covers loans sanctioned or renewed from 1 January 2026, for both part and full prepayment. Fixed rate loans can still carry a fee, which the Key Facts Statement and sanction letter will reveal.

Most lenders take part-payments through their website or a branch, and a few insist on a minimum. Afterwards comes a question: shorten the tenure, or lower the EMI? Shortening saves more interest, whereas lowering the EMI eases a stretched monthly budget.

Hold these back first

Cash sent to a lender is difficult to recover, as a top-up loan needs fresh approval and carries a higher rate. Before any lump sum goes to the loan, three safeguards deserve funding:

• An emergency fund worth around six months of expenses, with EMIs counted in
• Term life and health insurance for each earner
• Cash for planned spending in the next two or three years: interiors, a vehicle, school fees

Expensive borrowing should be repaid first: personal loans, car loans and card dues tend to cost more than a home loan. Contributions to the provident fund and other long-run commitments should simply continue.

Rules of thumb

Paying down the loan usually wins in these situations:

• Over half the term remains and the rate touches 8% or more
• The new regime applies
• The competing choice is a deposit whose interest is taxed at the slab rate
• Income fluctuates, or retirement comes before the loan ends

Investing is the stronger option in three situations. One is a horizon of ten years or longer in equity funds, with no need to sell in a downturn. Another is a loan that is small or nearly finished, where the old-regime deduction absorbs all the interest. The third is a household with thin savings, which values quick access to cash above interest saved.

Splitting the difference

A compromise is to share every windfall between the two, for instance one half towards the loan and the rest into a SIP. The loan ends years early, and a second pool of savings grows next to it. Raising the EMI by 5% to 10% every year, in step with pay, is another habit, and it works as a gentle part-payment that spares the household any large single outflow.

The EMI calculator will show how the repayment period shifts after a change in principal or EMI. People still shopping for a home around Whitefield or Yelahanka, can settle on an instalment with spare room for periodic part-payments.

A tidy procedure

These steps keep the lender's records clean, with a bank or a housing finance company alike:

1. Read the agreement to confirm a floating rate and no prepayment fee.
2. Download the amortisation schedule, noting the principal still due.
3. Instruct the lender in writing: shorter tenure, or lower EMI.
4. Get the revised schedule and verify the closing date it shows.
5. Look at the next statement to be sure the amount reduced principal.

If the aim is to close the loan completely, ask the lender for a list of the original title papers it holds. Keep the final payment's receipt with them.