Rs 25,000 SIP: Should You Increase Your Existing Investment Or Start A New Fund?

A Systematic Investment Plan, or SIP, allows investors to put a fixed amount into mutual funds at regular intervals. Over a long period, the combination of regular investing and compounding can help build a substantial corpus. But as income rises, investors face another question: should the extra money go into an existing SIP or should they diversify into another fund? The answer depends on the portfolio, risk profile, goals and performance.
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When Increasing An Existing SIP May Make Sense

Increasing an existing SIP can be a straightforward way to invest more without adding another fund to the portfolio.

For an investor already holding a reasonably diversified portfolio, directing additional savings towards an existing SIP may help keep the investment strategy simple.


However, this does not mean that every existing fund should automatically receive more money.

The fund's investment strategy, portfolio composition and role within the overall portfolio need to be considered before increasing the contribution.


If the existing investments already provide exposure across different market segments and asset classes, adding more to a suitable fund may be worth considering.

According to experts, investors should look at the portfolio as a whole rather than assessing individual funds in isolation.

Portfolio Diversification Should Come First

Diversification is one of the key considerations when deciding where additional money should be invested.

An investor may hold several mutual funds, but simply having multiple schemes does not necessarily mean the portfolio is well diversified. Different funds can sometimes hold similar stocks, sectors or market segments.


Before increasing an SIP, investors can review whether their existing portfolio has adequate diversification across areas such as equity, debt, sectors and market capitalisation, depending on their financial objectives and risk profile.

If the portfolio is already suitably diversified, increasing the contribution to an existing investment could be a simpler approach.

On the other hand, if the portfolio has a concentration in one particular category, adding a new investment may help address that imbalance.

Your Risk Appetite Also Matters

The decision should also reflect how much investment risk an individual is comfortable taking.

An investor with a lower tolerance for market volatility may not want to keep adding money to an aggressive equity-oriented investment simply because it has performed well previously.


The opposite can also be true. Someone with a longer investment horizon and a higher ability to tolerate fluctuations may have a different asset allocation from an investor approaching a major financial goal.

Risk appetite can change with age, income, financial responsibilities and the time remaining before the money is needed.

Therefore, increasing an SIP should not be based purely on the fact that the existing fund has delivered good returns in the recent past.

Check Fund Performance Before Adding More

Performance is another factor worth examining before increasing an existing SIP.

Investors can compare a mutual fund's performance with its relevant benchmark and with comparable funds over appropriate periods.


One weak period alone does not necessarily mean a fund needs to be replaced or abandoned. Mutual funds can go through periods of underperformance because of market cycles, investment style or the performance of particular sectors and securities.

However, persistent underperformance may warrant a closer review.

If a fund repeatedly struggles against its benchmark or suitable peers, investors may want to reassess whether adding more money to it remains appropriate for their objectives.

According to experts, fund selection should involve more than simply choosing the scheme with the highest recent return.

What If You Invest Rs 25,000 In A New Fund?

Consider an investor who decides to put Rs 25,000 every month into a new fund and continues the investment for 10 years.


Over the full period, the investor would contribute Rs 30 lakh.

If an assumed annual return of 12% is used for illustration, the investment could generate estimated returns of around Rs 26.01 lakh.

This would result in a projected corpus of approximately Rs 56.01 lakh after 10 years.

The illustration can be summarised as follows:

Monthly investment: Rs 25,000


Investment period: 10 years

Total investment: Rs 30 lakh

Assumed annual return: 12%

Estimated returns: Rs 26.01 lakh

Projected corpus: Rs 56.01 lakh


The 12% figure is only an assumed rate for the calculation. Mutual fund returns are market-linked and actual returns can differ depending on market conditions and the performance of the underlying investments.

What Happens If You Increase The SIP Every Year?

Instead of starting another Rs 25,000 monthly investment, an investor could increase the existing SIP by 10% every year.

This is commonly referred to as a step-up SIP, where the contribution rises at predetermined intervals.

Under the illustration provided, an investor starts with a monthly SIP of Rs 25,000 and increases the amount by 10% each year for 10 years.

The total amount invested would be approximately Rs 47 lakh.


At an assumed annual return of 12%, the estimated gains would be around Rs 36.55 lakh, resulting in a projected corpus of approximately Rs 84.36 lakh.

The illustration is:

Initial monthly investment: Rs 25,000

Annual SIP increase: 10%

Investment period: 10 years


Total investment: Approximately Rs 47 lakh

Assumed annual return: 12%

Estimated returns: Rs 36,54,588

Projected corpus: Rs 84,35,816

The higher projected corpus in this example is primarily linked to the substantially larger amount invested over the decade.


It should not be interpreted as proof that increasing an SIP will always produce better returns than investing in another fund. The two approaches may involve different investment amounts, portfolio structures and risk exposures.

Why A Step-Up SIP Can Change The Numbers

A regular Rs 25,000 SIP remains unchanged throughout the investment period unless the investor manually modifies it.

With a 10% annual increase, however, the monthly contribution becomes progressively larger.

As income grows, an investor may find it easier to allocate a higher amount towards investments. The additional contributions also get an opportunity to compound, although each instalment has a different investment period.

This is why the difference between a fixed SIP and a steadily increasing SIP can become significant over longer periods.


The approach can be particularly relevant for investors whose salaries or other regular income are expected to rise over time.

Inflation Should Not Be Ignored

An investment target that appears sufficient today may not have the same purchasing power several years from now.

Inflation gradually reduces the value of money, which means investors need to consider how much their future corpus will actually be worth in real terms.

For example, Rs 25,000 invested every month may appear substantial today, but financial requirements could be considerably higher after 10, 20 or 30 years.

According to experts, investors should therefore review their SIP amount periodically instead of assuming that the same contribution will remain adequate throughout their investment journey.


A step-up SIP can be one way to align contributions with rising income and long-term financial requirements.

When A New Fund Could Be Worth Considering

Starting another fund may be worth examining when the existing portfolio does not provide the desired diversification or when a particular investment no longer fits the investor's objectives.

It may also make sense when additional money is intended for a different financial goal requiring a different asset allocation or investment horizon.

However, adding funds simply to increase the number of schemes can make the portfolio harder to monitor without necessarily improving diversification.

Before starting another SIP, investors can check how its holdings overlap with their existing investments and whether it adds something genuinely different to the portfolio.


The Decision Depends On The Bigger Financial Picture

For an investor already putting Rs 25,000 a month into mutual funds, the decision to increase the SIP or start another fund should not be based on a single calculation.

Portfolio diversification, risk tolerance, fund performance, financial goals, investment horizon and inflation all deserve consideration.

The 10-year illustration shows that a 10% annual increase can significantly raise the projected corpus because substantially more money is invested over time. But the result is based on a hypothetical 12% annual return and should not be considered a guaranteed outcome.

Investors may choose to increase an existing SIP when their portfolio is already appropriately structured. A new fund may be considered when additional diversification or a different investment objective requires it.

Ultimately, the more important question is not how many funds an investor owns, but whether the overall investment strategy remains aligned with their financial goals and risk profile.


Disclaimer: This content is for informational purposes only. The return figures are illustrative and not guaranteed. Mutual fund investments are subject to market risks, and investors should assess their financial goals, risk tolerance and investment horizon before making investment decisions.

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