If you're investing for less than 3 years and can't handle any NAV fluctuation, FD wins on predictability. But for anything longer, SIP in equity has historically outpaced FD returns by a wide margin.
Worked examples
Rohan, 28, ₹10,000/month for 10 years
Rohan puts ₹10,000 into a SIP at 12% p.a. After 10 years, he has roughly ₹23L on a ₹12L investment. Had he gone with an FD at 6.5%, compounded quarterly, the same ₹10,000/month RD would give about ₹16.4L. The difference: ₹6.6L more in the SIP — almost 55% more wealth.
Priya, 45, ₹5L lumpsum for 5 years
Priya has ₹5L sitting idle and needs it intact in 5 years for her daughter's college. She chooses FD at 7% — gets ₹7.03L. If she had put it in a SIP equivalent (lumpsum equity), average market returns of 12% would give ₹8.81L, but with risk of a 20-30% drawdown in a bad year. For a hard 5-year deadline, FD was the right call.
Frequently asked questions
Is SIP better than FD for long-term investing?
Historically yes. Over 10+ years, equity SIP returns in India have averaged 11-14% p.a., well above the 6-7% FD offers. But SIP carries short-term volatility risk that FD doesn't.
Is FD interest taxable in India?
Yes. FD interest is added to your total income and taxed at your income slab rate. If you're in the 30% bracket, a 7% FD gives roughly 4.9% post-tax returns.
Can I do both SIP and FD?
Absolutely. Most financial planners recommend it. FD for your safety net and near-term goals, SIP for wealth building over 7+ years.
What is the minimum SIP amount?
Most mutual funds start at ₹500/month. Some even go lower. FDs usually need a minimum of ₹5,000-10,000.