SIP vs FD: Which is Better for Indian Investors?

A math-first comparison of SIPs and FDs over 10, 15, and 20 year horizons — with tax, risk, and inflation factored in.

1.The headline comparison

₹10,000/month for 20 years. SIP at 12% historical equity returns: ₹99.9 lakh. FD at 7% (current peak rate): ₹52.4 lakh. The SIP gives you nearly 2x more. But the comparison is incomplete without risk, tax, and liquidity.

2.Adjusting for risk

Equity SIPs are volatile — your corpus can drop 30-40% in a single year (it has, multiple times). FDs are guaranteed. Over any 10+ year period Indian equities have NEVER lost money, but the psychological cost of seeing your corpus drop is real. For money you need within 5 years, FD or debt mutual funds are safer. For money you don't need for 10+ years, SIPs are mathematically superior.

3.The tax hit

FD interest is taxed at your slab rate — for someone in the 30% bracket, that ₹52 lakh FD corpus had ~₹16 lakh taxed away. Equity SIP long-term capital gains are taxed at 12.5% with a ₹1.25 lakh/year exemption — that ₹75 lakh in gains might cost ~₹9 lakh in tax. Post-tax: SIP ~₹91 lakh vs FD ~₹36 lakh. The gap widens.

4.Inflation erodes FDs faster

India's long-term inflation has averaged 6-7%. A 7% FD earns 0-1% real return. A 12% equity SIP earns 5-6% real return. Over 20 years, the compounding difference between 1% and 5% real return is enormous — this is why SIPs are considered the better wealth builder in India despite their volatility.

5.The smart allocation

Most financial planners recommend: emergency fund in FD/liquid (3-6 months expenses), short-term goals (1-3 years) in debt mutual funds/FDs, medium-term (3-7 years) in hybrid funds, long-term (7+ years) in equity SIPs. Don't pick one — allocate based on time horizon of each goal.