How much should invest in mutual funds?

Struggling to save or invest? Learn how the 50:30:20 rule can help you plan smarter and calculate exactly how much to invest in mutual funds for every goal.
How much money to invest in mutual funds?
3 min
30-April-2025

Managing your money can sometimes feel confusing. You try to pay your bills, enjoy your life, and still save for the future—but somehow, it never quite adds up. That’s where a simple method like the 50/30/20 rule can really help. It gives you a clear plan for how to use your income wisely.

According to this method:

  • 50% of your earnings go to essential needs—like rent, EMIs, groceries, and utilities.
  • 30% is for lifestyle choices—such as going out, shopping, and entertainment.
  • 20% is for savings and investments—this could be in mutual funds, fixed deposits, or an emergency fund.

Even starting small—like Rs. 100/month—can help you build long-term financial stability. You can start investing with just Rs. 100 and build wealth your way.

This budgeting rule helps you enjoy your present without ignoring your future. It’s a good way to create balance in your finances and avoid the stress of living paycheck to paycheck.

What are mutual funds and ways to invest in them?

Mutual funds are a way for people to invest their money together. The money is collected from many investors and then used to buy a mix of stocks, bonds, or other assets. A professional fund manager handles these investments and tries to grow the fund’s value over time.

There are two main ways to invest:

  1. SIP (Systematic Investment Plan)
    This means you invest a fixed amount regularly—usually every month. SIPs are useful because they help you stay consistent and don’t require a big lump sum. Over time, you benefit from something called rupee cost averaging and the power of compounding.
  2. Lump Sum Investment
    Here, you invest a large amount at once. This option might work well if you’ve received a bonus or saved up a big amount and want to invest it all at one go. It gives you full market exposure immediately but also carries more short-term risk.

Both options can be effective it just depends on how much money you have ready and how comfortable you are with market ups and downs.

Still unsure which is better? Let the numbers speak what can Rs. 100 a month do? More than you think. Try a SIP.

Assessing your financial situation

Before you start investing in mutual funds, it’s important to know where you currently stand financially. This helps you figure out how much you can invest comfortably without putting pressure on your daily life. Here are some key steps to guide your self-assessment:

  1. Financial evaluation
    Start by tracking your income and expenses. Know how much you earn each month and where it goes. This gives you a clear picture of your cash flow.
  2. Debt prioritisation
    If you have outstanding loans or credit card balances, try to pay off high-interest debt first. These debts can become expensive over time, and clearing them early can free up more money for investing.
  3. Short-term goals
    Think about your near-future goals—maybe you want to take a trip, buy a bike, or renovate your home. Setting aside money for these short-term needs ensures you don’t have to dip into your long-term savings.
  4. Long-term objectives
    Now consider bigger goals like buying a house or planning for retirement. These goals will influence how much and where you should invest.
  5. Emergency fund
    Unexpected things like medical emergencies or job loss can happen anytime. Having a dedicated emergency fund acts as a safety net and stops you from breaking into your investments early.
  6. Risk tolerance assessment
    Understand your comfort level with market ups and downs. Some people don’t mind taking risks, while others prefer stable returns. Your investment style should match how you feel about risk.

Setting clear financial goals

Once you understand your current financial position, the next step is to set clear goals. These goals act like a roadmap for your investments. Here’s how you can do it:

  1. Short-term goals
    Think of what you want to achieve in the next few years. It could be buying a two-wheeler, building an education fund, or going on a family vacation. Decide the amount you’ll need and by when, so you can plan your investment accordingly.
  2. Long-term goals
    Now think of goals that are far off—like retirement, buying a home, or your child’s higher education. These need more planning and bigger investments spread over many years.
  3. Risk tolerance
    Different goals have different timelines, and that affects how much risk you can take. For example, short-term goals should have safer investments so your money is protected. But for long-term goals, you can afford to take more risk since you have time to recover from market fluctuations.
  4. Income and expenses
    Make sure your goals are realistic. You don’t want to stretch your budget too thin. Your investment plan should match your earning capacity and allow you to meet regular expenses without stress.
  5. Emergency fund
    Even while working towards your goals, keep a buffer for emergencies. This will ensure your goals stay on track without interruption.

When your goals are specific, investing becomes easier, more intentional, and less stressful. Invest in your goals, not just dreams. INVEST NOW .

How much money should I invest in mutual funds

Now that you’ve figured out your finances and set your goals, the next step is deciding how much to invest. Here’s a step-by-step approach:

  1. Prioritise debt
    If you have high-interest debts, clear them first. The cost of interest on credit cards or personal loans is often higher than the return you’ll earn from investments.
  2. Fund emergency and short-term goals
    Make sure you’ve saved enough for emergencies and upcoming expenses. Once these are taken care of, you can focus fully on long-term investments.
  3. Calculate monthly investment
    Look at your income and subtract all essential expenses, including savings for emergencies and short-term goals. What’s left is what you can comfortably invest in mutual funds each month.
  4. Consider your risk tolerance
    Your monthly investment amount should also reflect your risk appetite. If you’re okay with some ups and downs, you can invest more in equity funds. If not, look at debt or hybrid funds.
  5. Use SIPs for consistency
    Systematic Investment Plans are a great way to stay disciplined. By investing a fixed amount regularly, you don’t need to worry about market timing and can build wealth steadily over time.

Calculate how much to invest in mutual funds

When you're working toward specific financial goals, it’s helpful to know exactly how much you need to invest each month. This avoids guesswork and makes your planning more effective. Here's a simple 4-step process to help you:

Step 1: Identify your goals
Start by listing your key financial goals. For example:

  • Buy a car in 4 years
  • Fund your child’s higher education in 15 years
  • Save for retirement in 30 years

Step 2: Estimate future costs
Use inflation-adjusted estimates to know how much these goals will cost. For example:

  • Car: Rs. 5 lakh
  • Child’s education: Rs. 25 lakh
  • Retirement: Rs. 3 crore

Step 3: Calculate the monthly investment
Now figure out how much to invest every month to reach each goal. You’ll need to consider:

  • Time remaining for each goal
  • Expected returns from different types of mutual funds (e.g., equity funds can yield ~12% p.a., hybrid funds ~9% p.a.)

Here’s a sample calculation if your monthly income is Rs. 60,000:

Goal

Target Amount

Time Left

Expected Return

Monthly SIP Needed

Buy a car

Rs. 5,00,000

4 years

9%

Rs. 8,500

Child's Education

Rs. 25,00,000

15 years

12%

Rs. 5,000

Retirement

Rs. 3,00,00,000

30 years

12%

Rs. 8,500


You will need to invest a total of Rs. 22,000 per month. This still leaves you Rs. 38,000 to manage other expenses from your Rs. 60,000 income.

Step 4: Apply the 50:30:20 rule
If you’re unsure where to begin, the 50:30:20 rule is a useful guide. It says:

  • 50% of income → essentials
  • 30% → lifestyle wants
  • 20% → savings and investments

For someone earning Rs. 60,000, that’s Rs. 12,000 to be invested or saved monthly. You can allocate this amount into various mutual fund schemes depending on your goals and risk level.

A structured plan gives you financial clarity—Rs. 100 is all it takes to start your mutual fund journey.

Importance of investing in mutual funds

Mutual funds offer many benefits that make them suitable for both new and experienced investors. Here’s why they are a smart option for building wealth:

  • Diversification
    Your money is spread across many assets, reducing the risk of relying on just one or two investments.
  • Professional management
    Expert fund managers handle the decision-making, using research and analysis to guide investments.
  • Affordability
    You don’t need a huge amount to get started. Even small amounts like Rs. 100 can be invested via SIPs.
  • Liquidity
    Most mutual funds let you withdraw your money whenever you need it (except ELSS or funds with a lock-in).
  • Accessibility
    Whether you’re salaried, self-employed, or retired, mutual funds are open to everyone with flexible options.
  • Transparency
    You get regular updates about where your money is invested, how it’s performing, and any applicable charges.
  • Goal-based investing
    There are mutual funds tailored to different life goals—like saving for retirement, a house, or your child’s future.

With so many built-in benefits, mutual funds aren’t just flexible—they’re built for real-life goals. Explore mutual funds that align with your life goals.

Conclusion

Figuring out how much to invest in mutual funds isn’t about picking a random number. It’s about understanding your life goals, assessing your finances, and making a plan that balances your needs today with dreams for tomorrow.

Start with simple tools like the 50:30:20 rule, calculate your ideal SIP amount, and choose mutual fund types that match your goals and risk comfort. Over time, even small, regular investments can lead to significant financial growth.

Essential tools for all mutual fund investors

Mutual Fund Calculator

Lumpsum Calculator

SIP Investment Calculator

Step Up SIP Calculator

SBI SIP Calculator

HDFC SIP Calculator

Axis Bank SIP Calculator

ICICI SIP Calculator

Nippon India SIP Calculator

ABSL SIP Calculator

Groww SIP Calculator

LIC SIP Calculator

Frequently asked questions

What is the minimum amount to invest in mutual funds?

The minimum amount to invest in mutual funds varies depending on the fund and the type of investment, it can be as low as Rs. 100 or Rs. 500.

Will the minimum investment go lower?

It is possible for the minimum investment amount in mutual funds to decrease over time but it depends on the AMC or the Mutual Fund Company.

Can I invest Rs. 100 in mutual funds?

Yes, some mutual funds allow investments as low as Rs. 100 through systematic investment plans (SIPs), making investing accessible to investors with smaller amounts to invest.

Can mutual funds give 100% return?

Mutual fund returns are subject to market risks and can fluctuate based on market conditions and the performance of the underlying securities in the fund's portfolio. The returns or the potential returns of a mutual fund cannot be guaranteed.

How much of my salary should I invest in mutual funds?

Financial experts suggest you should invest around 10-20% of your monthly income. Be aware that this range is a general guideline. It can vary depending on your financial goals, how much risk you are willing to take, and your current financial situation.

What factors should I consider when deciding how much to invest in mutual funds?

Consider your overall financial situation when deciding how much to invest in mutual funds. Also, focus on your specific financial goals (like buying a house or saving for retirement) and your comfort with risk. To determine a feasible investment amount, start by setting clear goals, prioritising them based on importance, and calculating how much you need to invest to achieve them. Then, follow a budgeting plan like the 50:30:20 rule to allocate your income effectively.

What is the 50:30:20 rule?

The 50:30:20 rule is a simple budgeting strategy. It helps you manage your income. This rule suggests you spend 50% of your income on essential needs (like rent, groceries, and utilities), 30% on wants or discretionary spending (like entertainment and dining out), and 20% on savings and investments, including mutual funds. By following this rule, you can create a balance between your spending and your savings.

How do I set and prioritise my financial goals?

Start by listing all your financial goals, like buying a car, owning a home, or saving for retirement. Next, these goals should be prioritised based on their urgency and importance. Generally, long-term goals like retirement or your children's education should come first. Now, after prioritising, determine how much you need to invest for each goal based on your income and timeframe.

How can I calculate the necessary investment amounts for my goals?

To calculate how much to invest for each goal, first estimate how much that goal will cost in the future. Then, look at your monthly income and decide how much you can allocate towards each goal. If your income increases over time, you should ideally increase your investments to reach your goals faster. By planning in this way, you can consistently work towards achieving your financial objectives.

What should I do if my financial goals exceed my current budget?

If your goals exceed your current budget, the only option left with you is to realistically reassess your situation. While re-assessing, focus on paying off high-interest debt and prioritise essential goals over less critical ones. Also, adjust your goals or extend the timelines to make them more achievable. Furthermore, as your income grows, increase your investments. This will help you gradually reach your additional financial objectives.

How important is it to have an emergency fund before investing in mutual funds?

Most experts suggest having an emergency fund before initiating mutual fund investments. That’s because it acts as a financial safety net and ensures you have money available for unexpected situations like medical emergencies or job loss.

Ideally, this fund should cover at least three months' worth of your expenses. Also, with an emergency fund in place, you can invest in mutual funds with greater peace of mind as you know you are financially protected.

Should I consult a financial advisor for mutual fund investments?

If you are unsure about how much to invest in mutual funds or how to choose the right schemes, consulting a financial advisor is a good idea. A licensed financial advisor can offer you personalised advice based on your financial situation, goals, and how much risk you are willing to take. Through their help, you can better align your investment strategy with your long-term financial objectives.

Can I increase my mutual fund investments over time?

Yes, you can and should increase your mutual fund investments as your income grows. This will allow you to reach your financial goals faster and even give you the flexibility to take on additional goals in the future.

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