CNPJ Brazil: What Is a CNPJ Number and How to Get One

Last updated June 22 2026

If you plan to open a business, sign contracts as a company, issue invoices, or invest through a legal entity in Brazil, you’ll quickly run into one acronym: CNPJ.

A CNPJ number is Brazil’s main registration and tax identification number for legal entities (companies and other organizations). In practice, it’s the company equivalent of a CPF (which is for individuals).

This guide explains what a CNPJ is, what it’s used for, how foreigners can get one, and how to check a CNPJ online.

Editorial note: This is general information, not legal or tax advice. Requirements can vary by entity type and by state/municipality.

What is a CNPJ number in Brazil?

CNPJ stands for Cadastro Nacional da Pessoa Jurídica, often translated as the National Registry of Legal Entities.

A CNPJ is an identification number used by Brazil’s federal tax administration to register entities such as companies, partnerships, and foundations. It’s also used widely as a “business ID” in day-to-day operations: onboarding suppliers, issuing invoices, opening bank accounts, and verifying whether a company is properly registered.

Meaning of “Cadastro Nacional da Pessoa Jurídica”

In Portuguese, “pessoa jurídica” means a legal entity (as opposed to “pessoa física,” a natural person). So when you see CNPJ, interpret it as “the official registration number for an entity.”

CNPJ format (and an important 2026 update)

Traditionally, a CNPJ is shown as 14 digits in this format:

12.345.678/0001-95

The structure is commonly understood as:

• First 8 digits: the “root” that identifies the entity
• Next 4 digits: the branch/establishment identifier (often 0001 for the headquarters)
• Last 2 digits: check digits used to validate the number

Important update for 2026: Brazil’s Receita Federal has published guidance indicating that new CNPJ registrations will begin to use an alphanumeric format starting in July 2026. This means the first 12 characters (root + branch/establishment identifier) may include letters, while the total length remains 14 characters. Existing CNPJs are expected to remain unchanged, and both formats should coexist.

Practical takeaway: if you validate CNPJs in a system or spreadsheet, plan for “14 characters” rather than “14 digits.”

What is a CNPJ used for?

In Brazil, a CNPJ is requested in many situations because it is the standardized way to identify a company or organization.

Common uses include:

• Contracting: CNPJ is typically included in service agreements, commercial contracts, vendor onboarding, and procurement paperwork.
• Invoicing: many B2B relationships in Brazil depend on compliant invoicing (such as issuing Notas Fiscais where applicable).
• Banking and payment processing: banks and payment providers commonly request proof of company registration and status.
• Due diligence: counterparties often verify the company’s status before doing business, especially for higher-value transactions.

What is the “Cartão CNPJ” / CNPJ certificate?

You may hear people ask for the Cartão CNPJ. This is the common name for the official Comprovante de Inscrição e de Situação Cadastral (a printable certificate showing the company’s registration information and status).

It’s often requested as proof the company exists and is properly registered.

CNPJ vs CPF: what’s the difference?

CPF and CNPJ are both identification numbers in Brazil, but they apply to different “types of people”:

• CPF (Cadastro de Pessoas Físicas) is for individuals
• CNPJ (Cadastro Nacional da Pessoa Jurídica) is for legal entities (companies and organizations)

A helpful analogy for Americans:

• CPF is similar to an individual taxpayer ID concept
• CNPJ is similar to a business taxpayer ID concept

If you are opening a company in Brazil with foreign partners, it is common for the individuals involved to have CPFs and for the company to have a CNPJ.

Can foreigners get a CNPJ?

Yes, foreigners can obtain a CNPJ, but the path depends on what you’re trying to do.

Foreigners forming a company in Brazil

If you are opening a Brazil-incorporated company, getting a CNPJ is part of the standard business formation flow.

Official guidance for CNPJ registration emphasizes:

• municipal “viability” (address and activities) checks where required,
• approval of legal/name rules by the state and competent registry, and
• confirmation of applicable tax regime choices.

It also indicates that the responsible person and the designated accounting professional must sign the request to obtain the CNPJ.

Foreign-domiciled entities and investment-related registrations

In more specialized cases, a foreign entity may need a CNPJ for operations connected to Brazil (for example, certain capital/investment, credit, or contract scenarios).

Brazil’s Receita Federal publishes guidance for “pessoa jurídica domiciliada no exterior” (legal entities domiciled abroad), and Brazil’s Central Bank also describes cases where a non-resident registration (CDNR) can be necessary for non-resident legal entities that want a CNPJ to later acquire direct participation in the capital of Brazilian resident companies.

If you are in this scenario, professional support is strongly recommended because documentation, representation, and compliance steps are typically more complex.

How to get a CNPJ (step-by-step)

Brazil’s official guidance describes CNPJ registration as part of an integrated workflow through REDESIM and related portals. While details can vary by location and entity type, the high-level steps are consistent.

Step one: Check business viability (when required)

The “consulta prévia de viabilidade” checks typically cover two things:

• whether your intended activities can be performed at your chosen address (municipality rules), and
• whether the business name is available or too similar to an existing one (registry rules).

Some entity types may not require viability, but it is common for standard company openings.

Step two: Provide registration data for “Inscrever CNPJ”

After viability (when needed), you provide the legal entity data for registration with the competent body and for CNPJ issuance.

In the Receita Federal workflow for opening the first establishment (the “matriz”), the process is described as the moment of constitution of the entity.

In practical terms, you should be prepared to define:

• the company’s legal structure and governance,
• partners/administrators (and their identification),
• business activities, and
• address and contact information.

Step three: Sign and submit (responsible party + accountant)

Official service guidance indicates the responsible person for the entity and the designated accounting professional must sign the request to obtain the CNPJ.

This is one reason foreigners typically work closely with a Brazil-based accountant (contador) and, where needed, a lawyer.

Step four: Obtain state/municipal licenses and registrations

Getting the CNPJ is often not the final step.

Official guidance separates CNPJ opening from obtaining licenses: depending on what you do and where you operate, you may need additional state and municipal registrations and operating licenses.

Planning tip: before starting the process, confirm licensing rules in your municipality/state for your activity. This helps avoid “getting a CNPJ” but being unable to operate.

Important note about MEI

Official guidance states that MEI (Microempreendedor Individual) registration is done through the Portal do Empreendedor, not through the standard “Inscrever no CNPJ” service.

How to check a CNPJ online and download the CNPJ certificate

If you need to verify a company or prove your business is registered, use official consultation channels.

Brazil’s gov.br guidance for “Consultar CNPJ” indicates that:

• any person can use the service,
• it is immediate and free, and
• the listed channels include a REDESIM consultation and issuance of the registration/status certificate (Comprovante).

What you can see in a CNPJ lookup

A typical CNPJ certificate/lookup output can include:

• legal name (razão social) and trade name (nome fantasia, if any),
• opening/registration dates,
• address,
• activities (industry codes),
• current registration status (situação cadastral) and the reason if not active.

This is useful for onboarding vendors, signing contracts, and avoiding fraud.

FAQs about CNPJ Brazil

What is a CNPJ number in Brazil?

A CNPJ is Brazil’s identification number for legal entities, used for registration and tax administration.

How many digits are in a CNPJ?

A CNPJ has 14 characters in its standard format. Historically they were digits, but official guidance indicates new alphanumeric CNPJs may begin from July 2026, still with 14 characters.

Is a CNPJ the same as a business license?

No. The CNPJ is a federal registration/ID number. Depending on your activity and location, you may also need municipal/state registrations and operating licenses.

Who can consult a CNPJ?

Official guidance indicates that anyone can consult CNPJ registration information through the public consultation channels.

How do I check if a CNPJ is active?

Use the official consultation channels and look at the “situação cadastral.” The CNPJ certificate typically shows whether the registration is active and, if not, the reason.

What is the Cartão CNPJ?

It’s the common name for the Comprovante de Inscrição e de Situação Cadastral, a printable certificate showing registration data and status.

Do foreigners need a CNPJ to do business in Brazil?

If you are operating through a legal entity in Brazil, a CNPJ is typically required. Foreigners can obtain a CNPJ through the standard formation process, and certain foreign-entity scenarios may require additional steps.

Is MEI the same as opening a company CNPJ?

MEI is a simplified microentrepreneur category. Official guidance directs MEI registration through the Portal do Empreendedor, not the standard “Inscrever no CNPJ” flow.

Why do vendors ask for my CNPJ certificate?

It’s a standard way to verify your company’s registration, status, and key details before contracting, extending credit terms, or enabling invoicing.

What should I do if my CNPJ certificate shows wrong information?

If the certificate has incorrect data, you generally need to correct it via official update processes. Many companies handle this with their accountant and, where appropriate, through digital submission channels.

Need help?
If you’re a foreigner opening a company, registering foreign ownership, or trying to keep your business compliant in Brazil, professional guidance can save significant time and prevent costly mistakes. Get in touch with Brasil Tax below: