Mutual Funds

SIPs vs Lump Sum Investing - When to Use Which?

Marisha Bhatt · 29 Nov 2025 · 8 mins read · 2 Comments

sip-vs-lump-sum-investment-when-to-use-which

Imagine building an investment portfolio without SIPs! Not possible, right? The power of SIPs and their integration in almost every portfolio make them an indispensable tool in today’s times. However, there is another side to investing in mutual funds, and that is the lump sum way. So how do you decide which way to go and what is ultimately better for your portfolio? Get answers to these questions and more in this blog, and maximise the potential of your mutual fund investments.

What is SIP and the Lump Sum mode of investment?

SIPs and lump sum mode are two different ways of investing in mutual funds. They offer different approaches to investing in mutual funds. They can be preferred for different investment goals or time frames depending on various factors such as the availability of investment capital, investment horizon and more. Let us understand the meaning of these approaches in detail. 

Systematic Investment Plans (SIPs)

Systematic Investment Plans (SIPs)

A Systematic Investment Plan (SIP) is a smart and disciplined way for an investor to invest in mutual funds. In this method, an investor puts in a fixed amount of money at regular intervals, such as monthly, quarterly, or weekly, into a chosen mutual fund scheme. SIPs enable investors to purchase mutual fund units systematically over time, without worrying about market fluctuations. This approach facilitates rupee cost averaging, meaning that when prices are high, fewer units are purchased, and when prices are low, more units are purchased. Over time, this balances the overall cost of investment. SIPs are ideal for people who want to build wealth gradually, even with small amounts, and prefer to stay invested for the long term. It encourages financial discipline, helps investors avoid emotional decisions, and is especially popular among salaried individuals who invest regularly from their monthly income.

Lumpsum Investment 

Lumpsum Investment

A lump sum investment is when an investor invests a large amount of money all at once in a mutual fund scheme. Unlike SIPs, where investments are spread over time, the entire amount is invested on a single day. This method is typically preferred by investors who have a sizable sum available, such as from a bonus, sale of property, or matured fixed deposit, and want to put it to work immediately. Lump sum investments can be more rewarding if market conditions are favourable, as the entire amount starts earning returns from the very first day. However, it also carries a higher level of risk because the investment is made at one market level. If the market falls soon after the investment, the portfolio value may decline sharply. Hence, this mode is more suitable for experienced investors or for those investing during stable or rising market phases.

Understanding Mutual Fund Investments Through SIP and Lump Sum Mode

Mutual fund investments can be made in two main ways, i,e., through a Systematic Investment Plan (SIP) or a lump sum investment. Both methods help investors grow their money, but they work differently and suit different financial needs. Let us consider the following examples to understand the impact of SIP and lump sum investing.

Systematic Investment Plans (SIPs)

Riya decides to invest Rs. 5,000 every month in an equity mutual fund through a Systematic Investment Plan (SIP). Over a year, she invests Rs. 60,000 in total. As she invests regularly, she buys mutual fund units at different prices, sometimes when the market is high and sometimes when it is low. Consider her investment data for a year.

systematic-investment-plans-mode

Month

Investment (Rs.)

NAV (Rs.)

Units Bought (Investment / NAV)

January

5000

50

100.00

February

5000

40

125.00

March

5000

45

111.11

April

5000

55

90.91

May

5000

35

142.86

June

5000

38

131.58

July

5000

42

119.05

August

5000

48

104.17

September

5000

50

100.00

October

5000

52

96.15

November

5000

54

92.59

December

5000

56

89.29

TOTAL

60000

1302.71 Units

If the NAV at the end of the year is Rs. 60, 

Riya’s investment value = 1,302.71 * 60 = Rs. 78,162.6

Profit = Rs. 78,162.6 - Rs. 60,000 = Rs. 18,162.6

Thus, even though the market moved up and down, Riya benefited through rupee cost averaging. She bought more units when prices were low and fewer when prices were high. This reduced her overall cost and gave her a steady return.

Lump sum Investment

Now consider another investor, Arjun, who invests Rs. 60,000 all at once in the same mutual fund through the lump sum mode. His entire investment is made at one Net Asset Value (NAV), say Rs. 50, which gives him 1,200 units immediately. If the market rises soon after, Arjun benefits quickly because his entire investment is already appreciating. However, if the market falls after his investment, the value of his portfolio will drop sharply because he entered at one price level. Consider his investment data for a year.

lumpsum-investment-mode

Investment (Rs.)

NAV at Entry (Rs.)

Units Bought

NAV After 1 Year (Rs.)

Final Value (Rs.)

60,000

50

1200

60

72,000

Profit = Rs. 72,000 - Rs. 60,000 = Rs. 12,000

Arjun earned a good return because the market rose after his investment. However, if the NAV had fallen to Rs. 40, his investment would drop to Rs. 48,000 (1200 * 40), showing how lump sum investments are more affected by market timing.

What are the Differences between SIP and Lump sum Investments?

SIP and lump sum investments in mutual funds are like opposite ends of reaching the same goal, i.e., wealth creation through mutual funds. The key difference between these approaches is explained hereunder. 

what-are-differences-between-sip-and-lumpsum-investment

Feature

SIP 

Lump sum

Meaning

A Systematic Investment Plan allows an investor to invest a fixed amount regularly, such as monthly, quarterly, or weekly, in a mutual fund.

A Lump sum investment allows an investor to invest the entire amount of money at one time in a mutual fund.

Investment Style

In SIP, the investment happens gradually over time, which brings discipline to the investor’s financial habits.

In Lump sum investing, the full amount is invested immediately, making it a one-time approach.

Market Timing

An investor using SIP does not need to worry about market timing since investments are spread across different market levels.

In the case of a Lump sum, market timing plays an important role because investing during a high or low market can strongly affect returns.

Returns Potential

SIP investments tend to grow steadily over the long term and benefit from rupee cost averaging.

Lump sum investments can generate higher returns in a rising market but may face sharp declines if the market falls.

Risk Level

SIP carries a lower risk since the investments are spread over time, reducing the impact of market ups and downs.

Lump sum investing carries a higher risk as the entire amount is exposed to the market at once.

Investment Discipline

SIP promotes financial discipline because the investment happens automatically at fixed intervals.

Lump sum investing requires personal discipline to decide the right time and amount for investment.

Flexibility

SIP offers flexibility as investors can start, stop, or change the investment amount as per their convenience.

Lump sum investments are less flexible since the money is invested all at once and stays invested until redemption.

Best Suited For

SIP is suitable for salaried individuals or beginners who prefer consistent growth with limited risk. It works best for long-term financial goals such as retirement, children’s education, or steady wealth creation.

A lump sum investment is suitable for experienced investors or those who have a large amount of money available to invest. It is better suited for long-term wealth creation when the market entry timing is favourable.

Which is Better - SIP and Lump sum?

Which is Better - SIP and Lump sum

The choice between SIP and Lump Sum depends on various factors like the investor’s financial situation, risk appetite, and investment goals. A Systematic Investment Plan (SIP) is usually the better option for most investors as it allows regular investing in small amounts, reduces the impact of market volatility, and encourages financial discipline. It is ideal for salaried individuals who receive a fixed income every month and wish to build wealth gradually. SIPs work well in both rising and falling markets through rupee cost averaging, which helps investors buy more units when prices are low and fewer when prices are high.

On the other hand, a Lump Sum investment can be more suitable for investors who have a large amount of money available, for example, from a bonus, inheritance, or sale of property, and who can stay invested for a long period. Lump Sum investing can deliver higher returns if the investment is made when the market is at a favourable level, but it also carries higher short-term risk if the market declines soon after.

Thus, to put it simply, SIPs are better for investors who prefer steady and consistent growth with lower risk, while Lump Sum investments are better for investors with higher risk tolerance and a long-term horizon. A balanced approach, where an investor regularly invests through SIPs and adds Lump Sum amounts during market corrections, can offer the best combination of stability and growth.

Conclusion

SIP and Lump sum investments play an important role in building wealth through mutual funds. Systematic Investment Plan (SIP) helps investors grow their money gradually, promotes regular saving habits, and protects against market ups and downs through rupee cost averaging, making it suitable for salaried individuals or beginners who prefer consistent and disciplined investing. Lump sum investment, on the other hand, allows an investor to invest a large amount at once and can give higher returns when the market performs well, though it carries more short-term risk. The best approach for investors is to combine both using SIPs for steady long-term growth and Lump sum investments when extra funds are available or when the market offers good opportunities. This balanced strategy helps in achieving financial goals with both stability and growth.

This article explains the two pillars of mutual fund investing and their impact on the portfolio. We hope this clarifies the universal question of choosing between the two and helps you create a robust portfolio. Let us know if you need further information on this topic or have any queries on the same, and we will address them.

 Till then, Happy Reading!


Read More: Global Exposure Via International Mutual Funds

Frequently Asked Questions

In a rising market, Lump sum investments usually perform better because the entire amount starts growing from the beginning. SIPs also give good returns, but the gains build up more slowly since the money is invested over time.

An investor should consider lump sum investing when they have a large amount of money available, such as from a bonus or inheritance, and plan to stay invested for a long time. It is best done when the market is stable or showing signs of growth.

If the investment time horizon is long, a SIP is usually better as it balances market ups and downs over time. On the other hand, a lump sum investment may work for shorter or medium-term goals if market conditions are favourable and the investor can take some risk.

Yes, an investor can mix both approaches by investing regularly through SIPs and adding lump sum amounts whenever extra money is available or when the market offers good opportunities. This helps balance risk and improve overall returns.

Investors can decide the allocation based on income stability, financial goals, and risk comfort. A common way is to invest regularly through SIPs for long-term goals and use lump sum investments for surplus money or special opportunities in the market.

Market conditions matter more for lump sum investments because the entire amount is invested at one time. In SIPs, the impact of market ups and downs is lower since the investment happens gradually over different periods.
Marisha Bhatt

Marisha Bhatt is a financial content writer @TrueData.

She writes with the sole aim of simplifying complex financial concepts and jargon while attempting to clarify technical and fundamental analysis concepts of the stock markets. The ultimate goal is to spread vital knowledge and benefit the maximum audience. Her Chartered Accountant background acts as the knowledge base to help clarify crucial concepts and create a sound investment portfolio.

2 Comments
S
Sandy
· December 01, 2025

Good post

·
Marisha Bhatt Author
Sandy · December 02, 2025

Thank you! Glad you liked our work!

·

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