Prepaying gives you a guaranteed return equal to your loan's interest rate, so investing only wins if you are confident of earning clearly more than that after tax, over many years.
Every rupee you prepay saves interest at your loan rate, with no risk. At around 8.5%, that is a solid, certain return. Investing in equity has historically earned more than that over long periods, but not every year, and the gains are taxed. Long-term equity gains are taxed at 12.5% above ₹1.25 lakh a year.
Tax on the loan matters too. Under the new regime, interest on a house you live in gives no deduction, which makes prepaying more attractive. Under the old regime, part of the interest can be deducted, which lowers the loan's real cost.
A practical approach many people use:
- Keep an emergency fund of 6 months of expenses before prepaying anything.
- If the loan rate is high and you sleep better without debt, prepay, and choose a shorter tenure rather than a lower EMI.
- If the loan is cheap and the money is meant for goals 10 years or more away, investing can make sense.
- Splitting the money between the two is a perfectly good answer.
Our prepay or invest calculator shows the break-even return for your loan.
Your own answer depends on your loan rate, tax regime, other goals and comfort with risk. If you want someone to look at your numbers, you can book a free call.