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CNPJ (short for Cadastro Nacional da Pessoa Jurídica in Portuguese, or National Registry of Legal Entities) is an identification number issued to Brazilian companies by the Department of Federal Revenue of Brazil (in Portuguese, Secretaria da Receita Federal).

Secretaria da Receita Federal do Brasil

The Department of Federal Revenue of Brazil, most commonly referred to as Receita Federal (RFB) is the Brazilian federal revenue service agency and a secretariat of the Ministry of Finance of Brazil. The bureau has the role of administrating tax collection and the customs of Brazil. It also controls noncompliance, smuggling, piracy and drug trafficking.


Up to 1998, the CNPJ was known by the acronym CGC, which stands for Cadastro Geral de Contribuintes (General Taxpayers Registry). [1]

The CNPJ consists of a 14-digit number formatted as 00.000.000/0001-00 — The first eight digits identify the company, the four digits after the slash identify the branch or subsidiary ("0001" defaults to the headquarters), and the last two are check digits. [2]

A check digit is a form of redundancy check used for error detection on identification numbers, such as bank account numbers, which are used in an application where they will at least sometimes be input manually. It is analogous to a binary parity bit used to check for errors in computer-generated data. It consists of one or more digits computed by an algorithm from the other digits in the sequence input.

See also

The Cadastro de Pessoas Físicas is the Brazilian individual taxpayer registry identification, a number attributed by the Brazilian Federal Revenue to both Brazilians and resident aliens who pay taxes or take part, directly or indirectly, in activities that provide revenue for any of the dozens of different types of taxes existing in Brazil. By means of this universal number the Federal Revenue computers can estimate the income tax that is due, thus directing fiscalisation.

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  1. CGC / CNPJ
  2. "CPAN".