The CNPJ is the core federal tax identification number for a company in Brazil, issued by the Receita Federal. It is only one part of a registration framework that can involve federal, state, and municipal authorities. For a foreign-owned company, the CNPJ process is integrated with registration of the entity and the required identification of its foreign shareholders. Since July 31, 2026, the Receita Federal has assigned the new alphanumeric format to new CNPJ registrations, while existing numbers remain valid. Getting the registrations right matters because they support banking, invoicing, tax filings, and licensing. This guide explains what the CNPJ is, how registration works, and what foreign companies need to plan for. For the full incorporation process, see our Brazil company formation guide.
What the CNPJ is
The CNPJ (Cadastro Nacional da Pessoa Jurídica, national registry of legal entities) is the federal registration number administered by the Receita Federal (federal revenue service). It identifies a company across tax, banking, invoicing, and contracting processes. The format still contains 14 positions, but for new registrations the first 12 may now contain letters and numbers, while the final two check digits remain numeric. Existing numeric CNPJs do not change.
The three levels of tax registration
Tax registration in Brazil is not a single step. Depending on what the company does, it registers at up to three levels of government, each with its own authority and its own tax.
| Level | Registration | Authority | When you need it |
|---|---|---|---|
| Federal | CNPJ | Receita Federal | Always |
| State | Inscrição Estadual | State finance secretariat (SEFAZ) | Generally for goods and other ICMS-taxed activities |
| Municipal | Inscrição Municipal | The municipality | If you provide services (ISS) |
A services business typically needs the federal and municipal registrations; a company selling goods also needs the state registration. Many foreign companies underestimate this and register only federally, then discover they cannot legally invoice for their actual activity.
How a foreign company gets a CNPJ
The registration steps are connected through Redesim, and the sequence matters:
- Complete the preliminary viability and registration data required through Redesim and the relevant state systems.
- Identify the foreign shareholders: foreign individuals generally need a CPF (individual taxpayer number), while foreign corporate shareholders complete the applicable Brazilian registration and representation requirements.
- Appoint the administrator and resident representative as required. An administrator of a Brazilian Ltda may reside abroad, but a nonresident administrator must grant the required power of attorney to a representative resident in Brazil.
- Register the constitutive act with the Junta Comercial (state Board of Trade) and complete the connected CNPJ tax-administration step.
- Complete state and municipal registrations as the activity requires.
Delays in foreign-party identification, powers of attorney, document legalization, or registry approval can delay the CNPJ and everything downstream, including invoicing and bank onboarding.
Choosing a tax regime
The company must also determine how its taxable profit will be calculated. This choice is modeled during setup and generally becomes effective through the applicable election or initial tax payments, rather than through the CNPJ number itself. Brazil has three principal regimes:
- Simples Nacional: a simplified, consolidated regime for qualifying small businesses. A company whose owner or shareholder is domiciled abroad is legally barred from using it, so a conventional foreign subsidiary cannot elect Simples Nacional.
- Lucro Presumido (presumed profit): tax calculated on a presumed margin, simpler to administer, suitable for many service and trading companies below a revenue ceiling.
- Lucro Real (actual profit): tax on actual accounting profit, mandatory above a revenue threshold and for certain activities, more complex but sometimes more efficient.
The right regime depends on margin, activity, and revenue, and it is worth modeling before registration rather than defaulting into one.
The digital certificate and e-invoicing
Most foreign-owned operating companies need an ICP-Brasil digital certificate, commonly an e-CNPJ, for relevant electronic tax filings and invoicing systems. An e-CNPJ is normally used for NF-e issuance and many SPED obligations. Requirements for NFS-e, Receita Federal access, and particular filings vary with the company's tax regime, municipality, system, and permitted authentication or delegation method. The required certificate setup should therefore be confirmed as part of operational onboarding.
The 2026 reform context
Brazil is in the middle of a major indirect-tax reform, replacing several legacy taxes with a dual VAT (the federal CBS and the state-and-municipal IBS) phased in from 2026 through 2033. In practice, 2026 is a test and transition year: the new CBS and IBS fields appear on electronic fiscal documents while legacy taxes remain in force. For a company registering now, invoicing and accounting systems need to support the applicable layouts and the accounting function must prepare for old and new regimes to operate in parallel during the transition.
Foreign-investment registration
Separately from tax registration, the Brazilian recipient and nonresident investor must be properly identified under the Banco Central do Brasil's SCE-IED framework before the first relevant investment transfer or movement. Financial transfers are generally captured from Brazil's foreign-exchange system, while other transaction and periodic reporting obligations depend on the investment and applicable thresholds. Accurate SCE-IED information supports later dividend, capital-return, and repatriation transactions, and is distinct from the CNPJ process.
Frequently asked questions
What is a CNPJ? The federal registration number administered by the Receita Federal for companies and other entities within the CNPJ rules. Businesses use it across tax, banking, invoicing, and contracting processes.
How long does it take to get a CNPJ? The timing depends on the integrated Redesim and Junta Comercial process and whether the foreign shareholders, representatives, powers of attorney, and supporting documents are ready. Those preparatory and registry steps are usually the main variables, rather than generation of the number alone.
Can a foreign-owned company use Simples Nacional? Not when an owner or shareholder is domiciled abroad. Brazilian law bars such a company from Simples Nacional, so a conventional foreign subsidiary generally uses Lucro Presumido or Lucro Real if otherwise eligible.
Do I need a digital certificate? Most foreign-owned operating companies need an ICP-Brasil certificate, commonly an e-CNPJ, for relevant filings and invoicing. The exact requirement varies by filing, invoice type, tax regime, municipality, and authentication method.
What is changing with the alphanumeric CNPJ? Since July 31, 2026, the Receita Federal has assigned the alphanumeric format to new registrations. The CNPJ remains 14 positions long, and existing numeric CNPJs remain valid and unchanged.
Compare Brazil's tax setup with other markets in our comparison tool, see how ongoing filings are handled by our accounting and tax service, or read the Brazil operating guide for the wider picture.
NavviPal registers foreign-owned companies in Brazil end to end, including the CNPJ, applicable state and municipal registrations, digital-certificate setup, and Banco Central foreign-investment reporting, then keeps the monthly obligations on track from one dashboard. Talk to our team for a fixed-scope quote and timeline.
Figures last verified: August 2, 2026.
This article is for informational purposes only and does not constitute legal or tax advice.
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