What is a Brazilian CNPJ?

The CNPJ (Cadastro Nacional da Pessoa Jurídica) is the 14-digit Brazilian business taxpayer number. It is structured as XX.XXX.XXX/XXXX-XX, where the first 8 digits are the company root, the next 4 identify the branch, and the last 2 are check digits.

How are the CNPJ check digits calculated?

Both check digits use the modulo-11 algorithm. The first uses weights 5,4,3,2,9,8,7,6,5,4,3,2 across digits 1-12. The second uses 6,5,4,3,2,9,8,7,6,5,4,3,2 across digits 1-13. Sum, modulo 11, subtract from 11; if the result is 10 or 11, the check digit is 0.

Gerador de CNPJ — Brazilian CNPJ Generator

GenTools/CNPJ Generator

Country Tools:

Brazil CPF/CNPJ Generator

Brasil

Generate valid Brazilian CPF (individual taxpayer) and CNPJ (company) identification numbers for testing purposes.

Type

Count

State (optional)

Validate CPF/CNPJ

CPF (Cadastro de Pessoas Físicas)

XXX.XXX.XXX-XX

• 11 digits: 9 base + 2 check digits
• 9th digit indicates fiscal region
• Issued by Receita Federal
• Required for tax purposes

9th Digit = Region:

0: RS1: DF, GO, MS, MT, TO2: AC, AM, AP, PA, RO, RR3: CE, MA, PI4: AL, PB, PE, RN5: BA, SE6: MG7: ES, RJ8: SP9: PR, SC

CNPJ (Cadastro Nacional da Pessoa Jurídica)

XX.XXX.XXX/XXXX-XX

• 14 digits: 8 base + 4 branch + 2 check
• Base identifies the company
• Branch code (0001 = headquarters)
• Required for all businesses

Structure:

XX.XXX.XXX - Company identifier

/XXXX - Branch number

-XX - Check digits

API Access

GET /api/v1/brazil/cpf

GET /api/v1/brazil/cnpj

View API docs

Aviso: Estes números são gerados apenas para fins de teste e desenvolvimento. Eles não correspondem a pessoas ou empresas reais. Não utilize para fins oficiais ou fraudulentos.