Navigating Recent Changes in Investment Fund Regulations: Understanding the Impacts of MP nº 1.184/23 and the Legal Framework of Duplicatas

Yuri Marques

Hatched by Yuri Marques

Mar 19, 2026

4 min read

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Navigating Recent Changes in Investment Fund Regulations: Understanding the Impacts of MP nº 1.184/23 and the Legal Framework of Duplicatas

In recent months, the investment landscape in Brazil has experienced significant regulatory changes, particularly with the introduction of MP nº 1.184/23, which alters the taxation framework for closed investment funds known as FIDC (Fundo de Investimento em Direitos Creditórios). This change is pivotal, as it extends the "come-cotas" taxation regime, previously applicable only to open-ended funds, to closed funds as well. In this article, we will explore the implications of this legislative shift, its connections to existing financial regulations, and how investors can adapt to these changes.

The "Come-Cotas" Taxation Regime

The "come-cotas" mechanism is a unique feature of the Brazilian investment fund landscape, designed to facilitate tax collection from investment funds. Traditionally, this regime has been applicable solely to open-ended funds, allowing the Brazilian government to collect tax on earnings at predetermined intervals. With the new MP, however, closed funds will now be subject to the same taxation rules, which raises questions about the attractiveness of these investment vehicles.

Typically, open-ended funds offer liquidity to investors by allowing them to redeem their shares at any time, while closed funds operate with a fixed number of shares and predetermined timelines for redemption. The introduction of the "come-cotas" for closed funds could deter potential investors who value the flexibility that open-ended funds offer. This regulatory change reflects a broader trend in Brazilian finance toward uniformity in taxation, aiming to simplify the regulatory landscape but potentially complicating investment decisions for many.

Exceptions to the Rule

Importantly, the MP outlines several exceptions to the application of the "come-cotas" regime. Certain funds, such as the Funds of Investment in Shares (FIA), Private Equity Funds (FIP), and Market Index Funds (ETF), are exempt from this taxation rule. Additionally, funds with a specific tax regime, such as Real Estate Investment Funds (FII) and Agro-industrial Production Chain Funds (FIAGRO), are also excluded. These exceptions create a nuanced landscape where investors need to carefully evaluate which funds remain attractive in light of the new tax obligations.

The Legal Framework of Duplicatas

In conjunction with these developments, the legal framework surrounding duplicatas, as stipulated in Lei nº 5.474 of July 18, 1968, remains highly relevant. Duplicatas are financial instruments used primarily in commercial transactions, allowing businesses to secure credit while establishing a formalized debt obligation. The regulation of duplicatas complements the investment fund landscape by providing businesses with necessary liquidity options, particularly in challenging economic climates.

Common Points and Unique Insights

Both the introduction of the "come-cotas" taxation for closed funds and the regulation of duplicatas underscore a critical aspect of financial regulation: the balance between government revenue needs and the incentives for investment. Investors are constantly weighing the risks and rewards associated with various financial instruments. The recent changes challenge fund managers and investors alike to rethink strategies and adapt to an evolving regulatory environment.

Furthermore, the exceptions to the "come-cotas" regime highlight the need for investors to conduct thorough due diligence. Understanding the tax implications of different fund types will be essential for optimizing investment strategies and ensuring compliance with the law.

Actionable Advice for Investors

As investors navigate this complex regulatory landscape, here are three actionable pieces of advice:

  1. Diversify Your Portfolio: Given the varying tax implications across different fund types, consider diversifying your investment across both open and closed funds, as well as funds that fall under the exceptions outlined in the MP. This strategy can help mitigate risks associated with the new taxation rules.

  2. Stay Informed: Regulatory environments are prone to change, and staying updated on legal developments is critical. Regularly review news and analyses on investment fund regulations, tax changes, and other financial legislation that may impact your investments.

  3. Consult with Financial Advisors: Engage with financial advisors who have expertise in Brazilian investment regulations. Their insights can provide clarity and guidance on how to structure your investments in light of the "come-cotas" changes and the legal considerations surrounding duplicatas.

Conclusion

The recent adjustments to the taxation of closed investment funds, alongside the longstanding legal framework governing duplicatas, reflect a broader trend toward regulatory uniformity in Brazil's financial landscape. While these changes present challenges for investors, they also create opportunities for informed decision-making and strategic portfolio management. By understanding the implications of the "come-cotas" regime and the nuances of related financial instruments, investors can better navigate this evolving environment and position themselves for success.

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