Fixed Income

Investment Funds: Is It Worth Investing Your Money in Them?

Understand how investment funds work, the risks involved, tax implications, and suitable investment profiles to determine whether this option aligns with your financial goals.

Investment Funds: Is It Worth Investing Your Money in Them?

Do you know how much of your income actually ends up in your pocket after fees and taxes? The investment funds They can facilitate access to different assets, but they do not eliminate risks or make any investment a suitable choice.

The decision depends on your investment objective, time horizon, and tolerance for volatility. Before investing, it’s important to understand the product’s strategy, liquidity, costs, and rules, and to compare it with alternatives such as Tesouro Selic, CDB, LCI, and FII.

What Are Investment Funds?

A fund pools resources from various individuals into a collective investment pool. Each investor receives shares proportional to the amount invested, while a professional team follows the policy outlined in the product documents.

In practice, the money can be invested in government securities, corporate bonds, stocks, currencies, real estate, or other assets. The portfolio’s composition determines a large part of the risks and the expected performance of the fund shares.

To understand How Investment Funds Work, read the prospectus, the fact sheet, and periodic disclosures. Also check who administers the fund, who manages the portfolio, which assets are included in it, and under what circumstances losses may occur.

Investment funds are not a one-size-fits-all investment. A money market fund typically tracks the performance of short-term interest rates, while an equity fund accepts greater volatility in pursuit of long-term appreciation.

Fixed Income Simulator

Compare CDB, LCI, LCA, Tesouro Direto, and savings accounts in seconds

Fill in the fields below with the amount you want to invest, the term, and the product you want—then click Simulate Now to view the complete results, including a chart and comparison.

CDI / SelicLoading...
IPCA (12-month)Loading...
SavingsLoading...
R$
R$
% CDI
CDB: applies to Regressive income tax (22.51 TP3T for up to 180 days → 151 TP3T for more than 720 days) and IOF for the first 30 days.
% CDI
LCI/LCA are exempt from income tax For individuals — great for the medium and long term.
% per year.
Treasury: subject to a regressive income tax + B3 custody fee of 0.201 TP3T p.a. (already included in the simulation).
With the Selic rate above 8.5% per annum: yields 0.5% per month + TR. With a Selic rate ≤ 8.5%: yields 70% plus the Selic rate + TR. Exempt from income tax.
How to use: Enter the amount you want to invest, set the term, and choose the type of investment using the tabs above—then click Simulate Now to view the complete results, including a chart and comparison.

When Is It Worth Investing in Them?

When Is It Worth Investing in Mutual Funds?
Illustrative image about "When It's Worth Investing in Them"

This choice may make sense when an investor is looking for convenience, diversification, or access to strategies that would be difficult to implement on their own. Still, the product must align with the purpose of the money.

For an emergency fund, for example, daily liquidity and low volatility are usually more important than a sophisticated strategy. In this case, Selic Treasury bonds or a CDB with daily liquidity may be comparable alternatives.

For a long-term goal, investment funds with stocks or international exposure can be included in the portfolio, provided the investor is willing to accept periods of decline. For example: if R$ 10,000 falls to 15%, the temporary balance will be R$ 8,500.

This figure does not predict future results; it merely shows the impact of a fluctuation. In practice, we have observed that many mistakes occur when people base their decisions on recent returns without considering whether they can maintain their investment through a downturn.

Also compare it to the Fund Returns compared to the net returns of equivalent alternatives. If one fund yields 12% per year before expenses and another product delivers a net return of 11%, the correct comparison cannot be made based solely on the advertised percentages.

Investment funds may be a good option for those who prefer to delegate decision-making, are willing to pay for that management, and find a strategy that aligns with their time horizon. For those who want simplicity and direct control, individual investments may be more suitable.

Risks and costs that require attention

The first step is to identify the predominant risk. With private credit, there is a risk of issuer default; with stocks, prices fluctuate; and with currency funds, returns also track currency fluctuations.

Note the liquidity: Some funds allow same-day redemptions, while others have a processing and payment period of several business days. Do not assume the timeframe shown in the app is accurate; be sure to check the fund rules.

Fees reduce returns. The management fee is charged for administrative and management services, while the performance fee, when applicable, may be levied on a portion of the returns that exceed a certain threshold.

In our comparison tests, an apparently small annual rate becomes significant when applied over many years. On a deposit of R$ 20,000, a fee of 1% per year amounts to R$ 200 in the first year, before taking into account changes in the balance.

Also evaluate the EAT QUOTAS, portfolio concentration, the existence of collateral, and the applicable coverage. Funds are not protected by the Credit Guarantee Fund, even when they purchase assets issued by financial institutions.

Investment funds should be evaluated based on net income, not just gross returns. For information on market concepts and rules, see the guidelines from the CVM.

Taxation and the quota-sharing mechanism

Taxation and the “come-quotas” mechanism for investment funds

Illustrative image on taxation and the quota-sharing mechanism

Taxation depends on the fund's classification and the investment term. In many fixed-income and multimarket funds subject to the periodic rule, the income tax It is anticipated by the mechanism known as “come-cotas.”.

This mechanism reduces the number of shares the investor holds in order to collect tax on accumulated earnings. It is not a separate charge via payment slip: the number of shares itself decreases, setting aside an amount equivalent to the tax due.

See a detailed explanation of EAT QUOTAS before comparing products. Generally speaking, advance payments are due on dates set by law, but the rates and scope of application vary by category.

Imagine R$ 10,000 in a fund that has accumulated R$ 1,000 in taxable income and has R$ 150 in taxes at that time. The amount corresponding to R$ 150 will be converted into a reduction in share value; the economic balance, before any further changes, will now reflect R$ 10,850.

This example is for illustrative purposes only: the applicable tax rate, the fund's classification, and the term must be confirmed. The Internal Revenue Service maintains official information on income tax and taxable income.

Do not confuse income tax with capital gains tax. The former is levied on the appreciation calculated according to the fund’s rules; the latter may apply to the sale of certain assets, such as FII shares.

Investment funds may be subject to different tax treatments. Therefore, be sure to review the prospectus, the income statement, and the tax classification, rather than assuming that all products follow the same rules.

Comparison with Well-Known Products

The comparison below helps clarify the most important differences. Liquidity terms, rates, and tax treatment may vary depending on the issuer or the specific product, so it is still necessary to review the documents.

ProductKey FeatureRisks and LiquidityApplicable TaxationAppropriate profile or objective
Selic TreasuryFloating-rate government security linked to the Selic rateLow issuer credit risk; redemption on business days, subject to the institution's terms and conditionsRegressive income tax on earnings and a custody fee in accordance with current regulationsEmergency reserve and short-term goals
CDB with daily liquidityTime deposit issued by bank, usually linked to the CDIBank risk, with FGC coverage within limits; liquidity depends on the contractRegressive income tax on earningsThose looking for simple fixed income and access to cash
LCIFixed-income instrument linked to the real estate sectorIssuer risk; may have a grace period or a set maturity date; FGC coverage within limitsIncome earned by individuals may be exempt from income tax under current law; this does not mean there are no risks or costsGoals with time horizons consistent with the grace period and a focus on fixed income
FIIExchange-traded fund composed of real estate or real estate receivablesPrices fluctuate in the market; liquidity depends on trading volume and buyer interestDistributed income may be subject to specific treatment for individuals; capital gains on the sale of shares are taxed in 20%, in accordance with the rule set forthThose who are open to variable income and seek exposure to the real estate market

In the table, “low risk” does not mean there will be no loss under any scenario. The price of a Selic Treasury bond may fluctuate before maturity, and a CDB depends on the financial health of the issuing bank, even though it is covered by the FGC within the applicable limits.

LCI may seem more advantageous after taxes, but the waiting period, term, and interest rate offered must be taken into account. FII, on the other hand, does not offer total tax exemption: distributions and the sale of shares are subject to different tax treatments.

Investment funds may hold several of these assets, but that does not automatically make the portfolio a better option. To learn more about FIIs, see the guide on real estate funds and carefully compare the risks.

How to Decide Before Applying

Before making a choice, approach the decision as an objective assessment. The product must align with the purpose of the investment, the time horizon, and your ability to withstand temporary losses without making an impulsive withdrawal.

  • Objective: Decide whether the money will be used for emergencies, retirement, buying a home, or building wealth.
  • Deadline: Compare the target date with the redemption and contribution deadlines specified in the regulations.
  • Risk tolerance: Consider the possibility of a decline and see if it fits within your financial plan.
  • Liquidity: Please confirm when the funds will be available after the redemption request is submitted.
  • Costs: Check the management fee, performance, entry and exit fees, and portfolio expenses.
  • Taxation: Identify income tax, management fees, and specific rules before comparing returns.
  • Information: Read the prospectus, regulations, investment policy, and track record without treating them as a promise.

Fixed-income investments, such as a Selic Treasury bond, can serve as an emergency fund; equity investments, such as a stock traded on B3, require a tolerance for price fluctuations; cryptocurrencies, such as Bitcoin, carry even greater risk and volatility.

If you want to understand the stock market environment, see also How the scholarship works. Investment funds are worth considering when their costs, strategy, liquidity, and risks align with your plan—with no guarantee of returns.

A choice that fits your plan

Therefore, the investment funds They can be useful for diversifying and delegating management, but they aren't automatically better than savings accounts, Selic Treasury bills, or other products. Compare the net return and choose based on your goal.

Start by reading the documents and choosing an investment that matches your profile. This content is for educational purposes only and does not constitute investment advice. Consult a certified financial advisor before making any decisions.

Frequently Asked Questions About Investment Funds

Are mutual funds a good investment for everyone?

No. The choice depends on your goal, time horizon, and tolerance for volatility. Mutual funds can be useful for those seeking convenience and diversification, but they may not be suitable for investors who prefer simplicity, direct control, or need immediate liquidity.

How do you choose an investment fund before investing?

Read the terms and conditions, the prospectus, and periodic product disclosures. Review the investment strategy, eligible assets, liquidity, fees, taxes, historical performance, and the roles of the administrator and portfolio manager.

What are the main benefits of mutual funds?

Funds allow investors to pool resources with other investors, gain access to various assets, and delegate decision-making to a professional team. They can also facilitate diversification across government securities, corporate bonds, stocks, currencies, real estate, or international exposure, depending on each product’s investment policy.

How do you compare investment funds with Tesouro Selic and CDB?

The comparison should take into account net returns—after deducting fees and taxes—as well as liquidity, risk, and the purpose of the investment. For an emergency fund, Selic Treasury bills or CDBs with daily liquidity may be more suitable than funds with greater volatility or restricted redemption.

Is it a myth that professional management eliminates the risks associated with funds?

Yes. Professional management does not guarantee profits or prevent losses, as returns depend on the assets in the portfolio and market conditions. An equity fund, for example, may experience significant declines, especially when an investor needs to redeem shares during a downturn.

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Jeferson Santos

Hello! My name is Jeferson Santos. I have a bachelor’s degree in Information Technology and have been investing in stocks, real estate funds, and fixed-income securities for 6 years. I started with R$100, and by applying analysis and discipline, I managed to grow my net worth by more than 80%—and achieve the financial freedom I’d been seeking for so long. I created “Aprender sobre Finanças” to share what I’ve learned through hands-on experience—no fluff and no unrealistic promises. Here you’ll find real content from someone who actually invests.

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