Prepay Home Loan or Invest in Mutual Funds? The Break-Even Math
The classic Indian dilemma: your home loan costs 8.75% p.a. but with Section 24(b) the effective post-tax rate for someone in the 30% slab drops to roughly 6.1%. Meanwhile, a diversified equity mutual fund has historically delivered 11–13% CAGR over 10-year rolling periods. The math usually favours investing — but only if you are disciplined, have a long investment horizon, and already hold adequate emergency funds and insurance. For those in lower tax brackets or with loans above ₹2L in annual interest, the calculus shifts and partial prepayment may win.
Frequently asked questions
Quick answer
Should I prepay my home loan or invest in mutual funds in India?
If your effective post-tax home loan rate is below 7% (common for 30% bracket taxpayers using Section 24b) and your investment horizon is 7+ years, equity mutual funds with a historical CAGR of 12–13% are likely to outperform prepayment mathematically. However, if your loan rate is above 9%, you are in a lower tax bracket, or you value the peace of mind of being debt-free, prepayment is a defensible choice.
Should I prepay my home loan or invest in mutual funds in India?
If your effective post-tax home loan rate is below 7% (common for 30% bracket taxpayers using Section 24b) and your investment horizon is 7+ years, equity mutual funds with a historical CAGR of 12–13% are likely to outperform prepayment mathematically. However, if your loan rate is above 9%, you are in a lower tax bracket, or you value the peace of mind of being debt-free, prepayment is a defensible choice.
What is the break-even rate for the prepay vs invest decision?
The break-even is roughly the post-tax effective home loan rate. If you expect mutual funds to return more than this rate over your remaining loan tenure, investing wins. For a 9% loan with a 30% tax benefit, the break-even is around 6.3% — almost any diversified equity fund beats this over 7+ years. For loans above the ₹2L interest deduction cap, the effective rate stays at the full 9%, raising the bar.
Are prepayment charges applicable on home loans in India?
As per RBI guidelines, banks cannot charge prepayment penalties on floating-rate home loans to individual borrowers. Fixed-rate loans may carry a prepayment penalty of 2–4%. Since most Indian home loans are floating-rate, you can prepay any amount at any time without a fee — making the flexibility argument for prepayment stronger.
What if my home loan interest exceeds ₹2 lakh per year — does it change the math?
Yes. Section 24(b) allows a maximum deduction of ₹2L per year on interest for a self-occupied property. If you pay ₹3L in annual interest, only ₹2L is tax-deductible; the remaining ₹1L is at the full loan rate with no tax shield. This raises the blended effective rate and makes partial prepayment (to bring interest below ₹2L) more attractive compared to purely investing.