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Loans & EMI

Should you use ₹5 lakh extra cash to prepay your home loan or invest in an SIP?

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The Answer
SIP wins
at 12% equity returns vs 8.5% loan rate over 20 years

Compare using ₹5 lakh to make a home loan prepayment against investing the same amount in equity mutual funds via SIP. See which option creates more wealth over your loan tenure.

By Aditya GuptaAccounting & Finance EducatorLast reviewed May 31, 2026Source: AMFI

Why Prepay vs SIP Is a Real Trade-Off

If you have ₹5 lakh surplus, the choice between prepaying a 9% home loan and investing in a 12% equity SIP is genuinely close once tax effects are factored in. Prepayment saves the loan rate (effectively a guaranteed return). SIPs offer potentially higher returns but with volatility and post-tax adjustments.

Under the old tax regime with full home loan deduction usage (₹2 lakh interest under Section 24(b), ₹1.5 lakh principal under 80C), the effective post-tax cost of a 9% home loan drops to about 6-7%. Versus a 12% equity SIP that nets to roughly 10-11% after LTCG tax — SIP still wins, but only by 3-4% per annum, and that gap can be wiped out by a single bad year of equity returns.

Under the new tax regime (no home loan deduction available), the effective home loan cost stays at the full 9% — and prepayment becomes substantially more attractive. The pragmatic answer for most Indians is a split: prepay 40-50% of the surplus, invest the rest. You get partial debt reduction, partial equity exposure, and you sleep better.

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Prepay Loan vs SIP Comparison

Interest Saved by Prepaying
SIP Corpus (Lumpsum Growth)
Verdict
Visual Breakdown
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How We Calculated This

Outstanding home loan: ₹50,00,000
Available amount: ₹5,00,000
Home loan rate: 8.5% p.a.
Expected equity SIP return: 12% p.a.
Comparison horizon: remaining 20-year loan tenure
Lumpsum ₹5L in MF vs immediate prepayment — both reduce future interest/grow wealth

Frequently Asked Questions

Why does SIP win at 12% vs 8.5% loan rate?+
Because 12% > 8.5%, the opportunity cost of prepaying exceeds the interest saved. ₹5 lakh growing at 12% for 20 years = ₹48.2 lakh. Interest saved by prepaying = ~₹8.5 lakh. SIP creates ~₹39 lakh more wealth.
Is 12% return guaranteed from equity MFs?+
No — equity returns are not guaranteed. If your actual equity returns are closer to 8–9%, the decision becomes a toss-up. Emotionally, debt freedom has real value that numbers can’t fully capture.
What’s the psychological advantage of prepaying?+
Being debt-free reduces financial stress and gives you flexibility to take risks (career changes, business ventures). Many financial planners argue the psychological benefit of loan closure justifies some numerical disadvantage.
What if I’m in the 30% tax bracket?+
Home loan interest is deductible under Section 24(b) up to ₹2 lakh/year in the old regime. This makes the effective loan rate 8.5% × (1–0.30) = 5.95%. At this rate, almost any equity investment beats prepayment.
Can I do both — prepay some and invest some?+
Yes — a hybrid approach is often best. Prepay to reduce your EMI to a comfortable level, then invest the freed-up cash flow in SIPs. This balances debt reduction with wealth creation.