SIP vs Lump Sum: ₹6,000 Monthly SIP or ₹6 Lakh Lump Sum; Which Grows Bigger in 30 Years?

When planning long-term investments, one common question is: Should you invest via SIP or make a lump sum investment? While both approaches have merits, your choice can significantly affect your final corpus depending on the investment horizon and market conditions.
Let’s explore how a monthly SIP of ₹6,000 compares with a one-time lump sum of ₹6 lakh over 10, 20, and 30 years assuming a 12% annual return.
Understanding SIP vs Lump Sum
SIP is a disciplined way of investing fixed amounts regularly monthly, quarterly, or annually into mutual funds. It helps reduce timing risk by spreading investments across different market cycles.
Lump Sum Investment
A lump sum involves investing a large amount upfront. This method can benefit from compounding for a longer time but carries higher timing risk if markets drop soon after investment.
Scenario 1: SIP of ₹6,000 per Month
When you enter different time horizons into an SIP calculator using a monthly investment of ₹6,000 at an expected annual return of 12%, the following outcomes are estimated:
| Duration | Total Investment | Capital Gains | Estimated Corpus |
| 10 Years | ₹7,20,000 | ₹6,74,034 | ₹13,94,034 |
| 20 Years | ₹14,40,000 | ₹45,54,888 | ₹59,94,888 |
| 30 Years | ₹21,60,000 | ₹1,90,19,483 | ₹2,11,79,483 |
Scenario 2: Lump Sum Investment of ₹6 Lakh
Based on a one-time investment of ₹6 lakh and an assumed annual return of 12%, the lump sum calculator estimates the corpus as follows over different time horizons:
| Duration | Investment Amount | Capital Gains | Estimated Corpus |
| 10 Years | ₹6,00,000 | ₹12,63,509 | ₹18,63,509 |
| 20 Years | ₹6,00,000 | ₹51,87,776 | ₹57,87,776 |
| 30 Years | ₹6,00,000 | ₹1,73,75,953 | ₹1,79,75,953 |
Key Takeaways
- In the first 10 years, lump sum wins due to compounding from day one.
- In 20 years, SIP begins catching up due to consistent investments.
- At 30 years, SIP slightly edges past lump sum despite lower total investment thanks to continued capital infusion and compounding on growing amounts.
Read More: SWP Calculator: See How a ₹3.99 Lakh Lump Sum Can Generate ₹67,000 Monthly Income for 30 Yrs.
Conclusion
There’s no one-size-fits-all answer when it comes to choosing between SIP and lump sum investing. The right choice depends on factors like availability of funds, investment discipline, market conditions, and personal risk tolerance. Before deciding, it's advisable to consider your financial goals, time horizon, and consult a qualified advisor.
Disclaimer: This blog has been written exclusively for educational purposes. The securities mentioned are only examples and not recommendations. This does not constitute a personal recommendation/investment advice. It does not aim to influence any individual or entity to make investment decisions. Recipients should conduct their own research and assessments to form an independent opinion about investment decisions.
Mutual Fund investments are subject to market risks, read all scheme-related documents carefully.
Published on: Jul 25, 2025, 2:32 PM IST

Neha Dubey
Neha Dubey is a Content Analyst with 3 years of experience in financial journalism, having written for a leading newswire agency and multiple newspapers. At Angel One, she creates daily content on finance and the economy. Neha holds a degree in Economics and a Master’s in Journalism.
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