Compounding in Mutual Funds

Learn how compounding in mutual funds can turn small SIPs into big wealth—start early, grow steadily.
What Is Power of Compounding in Mutual Funds?
3 mins read
15-May-2025

Ever wondered how small investments can turn into big money over time—without you doing anything extra? That’s the magic of compounding in mutual funds.

Most of us are so focused on earning more or cutting expenses that we miss the real secret to long-term wealth: letting your money do the work for you. And the earlier you start, the more powerful this effect becomes. That’s because compounding doesn’t just grow your investments—it accelerates them.

Starting small is enough as long as you start early. Even a simple SIP of Rs. 100 can grow a lot with time. Start investing or SIP with just Rs. 100!

If you're aiming for financial freedom or simply want your savings to outpace inflation, understanding compounding is a game-changer. Let’s break down how it works and how mutual funds make the most of it.

What is compounding?

At its core, compounding means earning interest on your investment—and then earning interest on that interest too. It’s like planting a seed that keeps growing more trees, each giving you more fruit year after year.

Here’s a simple example:
Imagine you invest Rs. 1,00,000 at an annual interest of 12%. In 5 years, that amount grows to around Rs. 1,76,234. You didn’t add anything more—but your returns kept growing because of reinvestment. If the same amount earned only simple interest, you’d get just Rs. 60,000 in 5 years. That’s a huge difference!

To understand it better, here’s the compound interest formula:

FV = P × (1 + r/n)^(n×t)

  • P = initial amount
  • r = annual interest rate
  • n = times interest is compounded in a year
  • t = number of years
  • FV = future value of your investment

Mutual funds don’t offer fixed interest rates like bank deposits. But when you stay invested long enough and reinvest any earnings, compounding kicks in naturally—especially if you invest through SIPs or choose a growth plan.

Note: This is just a simplified example. Mutual fund returns are market-linked and not guaranteed.

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How is compound interest utilised in mutual funds?

Mutual funds don’t offer interest in the traditional sense. Instead, they generate gains as the Net Asset Value (NAV) of your fund grows. This means the value of your investment increases as the fund’s underlying assets (stocks, bonds, etc.) perform well.

Here’s where compounding really shines:
If you choose a growth option, your returns are automatically reinvested back into the fund. This reinvestment buys more units—so now, your future returns are calculated on a bigger base.

Let’s say you also receive dividends—those can be reinvested too, if you’ve selected a dividend reinvestment plan. And every rupee that stays invested keeps compounding year after year.

What’s fascinating is that your earliest contributions grow the most. The longer they stay invested, the more powerful their compounding effect becomes. That’s why starting early—even with small amounts—can make a huge difference in the long run.

Are you searching for the best mutual funds? Check out these different mutual fund categories for smart investing!

The impact of compounding on the returns of your investments

Compounding isn’t just a financial concept—it’s your investment’s growth engine.

When your returns are reinvested and allowed to grow, they start earning on themselves. This “snowball effect” grows stronger with each passing year. But here’s the catch: time is what powers this engine.

Even a few extra years can double or triple your returns.

For example, investing Rs. 5,000/month for 10 years at 12% annual return gives you around Rs. 11.6 lakh. But stretch that to 20 years and you get over Rs. 49 lakh. That’s more than 4x growth with just 2x the time.

If your goal is to build future wealth without constantly reacting to market movements, it's time to choose funds that support long-term compounding. Explore top-performing mutual funds!

Tips for better ROI using the power of compounding

Want to make the most of compounding? Here are some simple yet powerful tips:

  1. Start early: The sooner you begin, the longer your money gets to grow.
  2. Stay invested: Avoid withdrawing unless necessary. Let your money stay in the fund and work harder for you.
  3. Use SIPs: Systematic Investment Plans help you stay disciplined. They automate investing and allow compounding to do its thing—month after month.
  4. Reinvest dividends: Skip the payouts. Reinvesting them boosts your future returns.
  5. Diversify wisely: Spread your investments across equity, debt, and hybrid funds. This reduces risk and increases the chances of long-term growth.

Stick to these habits and you’ll see how even modest investments can turn into sizeable wealth over time.

Compounding: The role of time

If there’s one thing that supercharges compounding, it’s time. The longer you stay invested, the more your wealth grows—not just steadily, but exponentially.

Think of time as the secret ingredient that transforms a regular investment into a powerful wealth-building tool. When you invest for 5 years, you might see decent gains. But stretch that to 10, 15, or even 20 years? That’s when things really start compounding in your favour.

For example, a Rs. 1 lakh investment that earns 12% annually becomes:

  • Rs. 1.76 lakh in 5 years
  • Rs. 3.10 lakh in 10 years
  • Rs. 9.64 lakh in 20 years

That’s the power of giving your money time to grow.

If you are still deciding when to begin, remember this—time lost in starting is wealth lost in compounding. Take the first step towards consistent growth open your mutual fund account today!

Advantages of compounding and how to maximise them

Want to squeeze the most out of your SIPs? Here’s how to unlock the full potential of compounding:

  1. Start early and invest regularly: Begin your SIPs as soon as possible even if it is just Rs. 500 a month. Over time, those contributions snowball.
  2. Reinvest returns: Don’t cash out gains or dividends. Reinvest them and let them generate even more gains.
  3. Pick funds with growth potential: Do your homework. Look for mutual funds with consistent past performance that align with your goals.
  4. Stick with it: Compounding works best when you don’t interrupt it. Avoid panic-selling or withdrawing early unless it is absolutely necessary.

Remember, the key is not just how much you invest it is how long you stay invested.

The indispensable role of time

We can’t say it enough time is everything when it comes to compounding.

  • The longer you stay invested, the more layers of returns your money can build.
  • Compounding doesn’t give spectacular results in year 1 or 2—but it starts to shine in year 10, 15, and beyond.
  • Every year you delay investing is a year lost in future returns.

And yes, it is tempting to react to market changes, but avoiding frequent buy-sell decisions helps you stay on track. Think marathon, not sprint. Give compounding the time it needs, and you’ll be surprised at how much your money can grow—even if you started small.

When you invest with patience, time does the hard work—choose growth-focused options and explore top-performing mutual funds to stay ahead.

Compounding disadvantages – How to overcome

Compounding sounds amazing—and it is—but there are a few roadblocks that can slow it down. The good news? You can overcome most of them with the right approach.

  1. Inflation can eat into your returns:
    Let’s say your mutual fund earns 7% annually. Sounds good, right? But if inflation is around 6%, your actual gain is just 1%. That’s why it’s crucial to choose funds that offer inflation-beating returns—especially equity funds for long-term goals.
  2. High fees and taxes reduce your gains:
    Expense ratios, exit loads, capital gains tax—all of these can cut into your returns. Look for low-cost funds and try to stay invested for longer than a year in equity mutual funds to avoid short-term capital gains tax.
  3. Lack of consistency in investing:
    Skipping SIPs or withdrawing money too often disrupts the compounding cycle. The solution? Automate your investments and stay disciplined—even during market ups and downs.
  4. Not having a strategy:
    Random investments won’t help. You need a clear goal, the right fund mix, and a well-diversified portfolio to grow wealth efficiently through compounding.

How mutual funds leverage compound interest

Mutual funds are designed to help you grow your money over time. And they do this beautifully through the power of reinvestment. Here's how:

  • Dividend reinvestment: When the fund earns profits, it might pay dividends. You can opt to reinvest these dividends instead of cashing them out. This buys you more units and boosts your future returns.
  • Interest income reinvestment: In debt mutual funds, the interest earned is automatically reinvested into the fund—adding to your capital.
  • Capital gains reinvestment: When fund managers sell investments at a profit, those gains are also reinvested. Over time, this adds up to significant compounding power.

Key factors for maximising compounding benefits

Want to get the most out of compounding in mutual funds? Focus on these essentials:

  • Think long-term: The longer your money stays invested, the more exponential your returns.
  • Invest consistently: Whether it's Rs. 500 or Rs. 5,000 a month, stay regular. SIPs are your best bet.
  • Diversify smartly: Don’t put all your money in one fund or sector. A balanced mix cushions market volatility and keeps compounding on track.
  • Stay involved: While you shouldn’t panic with every market dip, do keep an eye on your investments. Rebalancing once in a while ensures you're aligned with your goals.
  • Reinvest everything: Dividends, gains—put them all back in. Every rupee reinvested adds fuel to your growth engine.

Conclusion

Compounding is more than just a math concept it is a life-changing habit when applied to your money. The idea is simple: let your earnings earn more, and over time, even small investments can turn into big wealth.

Mutual funds are one of the easiest and most efficient ways to unlock the benefits of compounding. With SIPs, dividend reinvestment, and long-term holding, you’re essentially giving your money the best possible chance to grow.

Remember, the key of successful investment lies in patience, discipline, and a long-term perspective. Starting early is the most powerful choice you can make. Start SIP with just Rs. 100!

Essential tools for all mutual fund investors

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Frequently asked questions

Does mutual fund have compounding?

Mutual funds utilise compounding to grow investments over time. Returns generated by mutual funds are reinvested, allowing for exponential growth potential.

How is compounding done in SIP?

In SIP (Systematic Investment Plan), compounding occurs as regular investments are made at fixed intervals. Each investment generates returns, which are reinvested, leading to compounded growth.

Does SIP compound monthly?

Yes, SIPs compound monthly. With each monthly investment, returns are reinvested, and the cycle continues, allowing for compounded growth over time.

What is the formula for compounding SIP?

The formula for compounding in SIP involves calculating future value using the formula: FV = P [(1 + r/n)^(nt)], where FV is the future value, P is the principal amount, r is the annual interest rate, n is the number of times interest is compounded per year, and t is the time in years.

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Disclaimer

Bajaj Finance Limited (“BFL”) is an NBFC offering loans, deposits and third-party wealth management products.

The information contained in this article is for general informational purposes only and does not constitute any financial advice. The content herein has been prepared by BFL on the basis of publicly available information, internal sources and other third-party sources believed to be reliable. However, BFL cannot guarantee the accuracy of such information, assure its completeness, or warrant such information will not be changed. 

This information should not be relied upon as the sole basis for any investment decisions. Hence, User is advised to independently exercise diligence by verifying complete information, including by consulting independent financial experts, if any, and the investor shall be the sole owner of the decision taken, if any, about suitability of the same.

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