Anyone taking their first steps into the business world in Brazil quickly encounters a common question: what exactly is the difference between MEI and microenterprise? These acronyms often appear together in conversations, forms, and tutorials, but they represent distinct legal categories with different rules, limits, and obligations. Understanding this distinction can be crucial for those who want to start a business correctly and avoid unpleasant surprises with the tax authorities.
The confusion is understandable. Both the Individual Microentrepreneur (MEI) and the microenterprise (ME) are part of the small business universe in Brazil, and both fall under the Simples Nacional tax regime. But the similarities end there. From revenue limits to the number of employees allowed, including accounting obligations and monthly contributions, the differences are significant — and ignoring them can cause serious problems for the business.
In this article, we will clearly and objectively explain what separates MEI from microenterprise, helping you make the most appropriate decision for your entrepreneurial profile.
What is MEI?
The Individual Microentrepreneur is a category created by Complementary Law No. 128/2008, aiming to formalize self-employed workers and small entrepreneurs who operated informally. The idea was simple: to offer an accessible, cheap, and bureaucratic path for those who work independently to become legal entrepreneurs.
To qualify as MEI, the entrepreneur must meet some basic criteria:
- Annual revenue of up to R$ 81,000 (or R$ 6,750 per month on average)
- Not be a partner, administrator, or owner of another company
- Have a maximum of one employee hired
- Engage in one of the activities permitted by MEI legislation
The monthly payment is made through the DAS-MEI (Simples Nacional Collection Document), with fixed and very affordable amounts. In 2026, the amount varies according to the activity, but it is around R$ 71.60 for commerce and industry, with an addition of R$ 5 for services or R$ 1 for real estate rental activities. These amounts include INSS, ISS, and/or ICMS, depending on the nature of the business.
One of the great advantages of MEI is its bureaucratic simplicity. The opening process is free, done entirely online through the Entrepreneur Portal, and the tax obligations are reduced to a minimum. MEI is not required to hire an accountant to maintain its bookkeeping, although this is advisable as the business grows.
What is a Microenterprise (ME)?
A microenterprise is a legal category for small businesses with annual revenue of up to R$ 360,000. Like MEI, ME can opt for Simples Nacional — a simplified tax regime that consolidates various taxes into a single monthly guide.
However, a microenterprise requires a more formalized structure. Among the main characteristics:
- Own CNPJ, with registration opened at the state Commercial Board
- Need for a responsible accountant for bookkeeping
- Possibility of having more than one partner (in the case of partnerships)
- No legal limit for the number of employees (although the size recommends lean teams)
- Access to more economic activities than MEI allows
The taxation of ME in Simples Nacional is calculated on the gross monthly revenue, with rates varying according to the accumulated revenue in the last 12 months and the annex of the Simples table in which the activity fits. This means that the tax burden can vary greatly from company to company.
Main Differences Side by Side
To facilitate comparison, see the table below with the most relevant points:
Criterion MEI Microenterprise (ME) Annual revenue limit R$ 81,000 R$ 360,000 Maximum number of employees 1 No fixed limit Accountant requirement No Yes Opening cost Free Varies by state Taxation Fixed monthly amount (DAS-MEI) Variable rate (Simples Nacional) Possibility of partners No Yes Permitted activities Restricted list Broader Issuance of invoices Mandatory in some cases Mandatory When is it Worth Being MEI?
MEI is ideal for those who are starting from scratch, work alone or with few clients, and want to access the benefits of formalization without facing excessive bureaucracy. With the MEI’s CNPJ, the entrepreneur can issue invoices, open a business bank account, hire credit services for legal entities, and access social security benefits such as retirement by age, sick pay, and maternity pay.
Typical situations that fit well in MEI:
- Hairdressers, manicurists, and self-employed beauty professionals
- Electricians, plumbers, and other service providers
- Artisans, confectioners, and homemade food producers
- Freelance photographers and designers with low revenue
- Small-scale individual merchants
The major limitation of MEI is precisely the revenue ceiling. When the entrepreneur starts to grow and approaches the R$ 81,000 annual limit, it’s necessary to evaluate whether it’s time to move to a higher category — whether a microenterprise or even a small business (EPP).
If you need more information on how MEI compares to other categories and which structure might be more advantageous for your case, also check out the article MEI or Microenterprise: Which is Ideal for You?.
When is a Microenterprise the Right Choice?
A microenterprise makes more sense when the business already has a higher volume of revenue, involves more than one partner, needs to hire more employees, or operates in activities not allowed for MEI.
Additionally, some companies are required to be constituted as ME or LTDA due to client or partner demands — especially in the B2B market (business to business), where service contracts often require a more robust legal structure.
Other common scenarios for opting for a microenterprise:
- Law, accounting, or architecture offices with more than one professional
- Small industries or manufacturers with their own production line
- Businesses planning to grow and need a scalable structure
- Entrepreneurs who want to share responsibilities with one or more partners
- Activities not on the MEI permission list
It’s worth remembering that opening a microenterprise involves costs — registration fees at the Commercial Board, accountant fees, and, depending on the municipality, fees for issuing an operating license. These amounts vary from state to state and should be considered in the initial financial planning.
How to Migrate from MEI to Microenterprise?
The growth of the business may necessitate a category change. When MEI’s revenue exceeds the annual limit of R$ 81,000, the Federal Revenue may automatically classify the entrepreneur as a microenterprise — which can generate retroactive tax obligations.
To make the transition in a planned way, the process involves several steps:
- Hire an accountant to guide the process and define the best legal type (MEI, LTDA, SLU, etc.)
- Open a new CNPJ as a microenterprise with your state’s Commercial Board
- Close the MEI CNPJ through the Entrepreneur Portal, after ensuring all obligations are settled
- Transfer contracts and registrations of clients and suppliers to the new CNPJ
- Regularize Simples Nacional with the new company, informing the type of activity and the tax regime
This process is not complicated, but it requires organization and professional oversight to avoid tax issues.
Social Security Benefits: An Important Difference
One point that many people overlook concerns social security. Both MEI and the owner of a microenterprise have access to INSS, but the conditions differ.
MEI contributes monthly with a rate of 5% on the minimum wage, which guarantees access to retirement by age, sick pay, maternity pay, and death pension — but does not entitle to retirement by contribution time (which, by the way, was abolished by the 2019 Pension Reform). To access all benefits, including full retirement, MEI can voluntarily contribute with complementary rates.
Meanwhile, the partner or owner of a microenterprise pays INSS as an individual contributor, with rates ranging from 11% to 20% on the declared value as pro-labore (the partner’s remuneration). This can guarantee higher benefits but also represents a higher cost.
Conclusion
MEI and microenterprise are not synonyms — they are distinct legal categories designed for different stages and profiles of entrepreneurship. MEI is the most accessible entry point for those who want to formalize with simplicity and reduced cost. The microenterprise offers more structure, more growth capacity, and greater flexibility of activities, but it also brings more responsibilities and operational costs.
The choice between one and the other should consider factors such as current and projected revenue, type of activity, number of partners and employees, and the level of formalization required by the market in which you operate. In all cases, having the guidance of an accountant makes all the difference in making the right decision — and ensuring your business grows legally.
If you are evaluating which path to follow, it is worth deepening the research and considering all variables before opening your CNPJ. For a more detailed analysis of which structure best suits your profile, check out the article MEI vs. Microenterprise: Choosing the Right Business Structure.
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- Open a new CNPJ as a microenterprise with your state’s Commercial Board
- Hire an accountant to guide the process and define the best legal type (MEI, LTDA, SLU, etc.)
- Need for a responsible accountant for bookkeeping
