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Brazil CPF (Tax Registration)

  • Published on Sep 2, 2026
  • 1 minute(s) read
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Number issued by Brazilian Federal Revenue to Brazilians and resident foreigners who, directly or indirectly, pay taxes in Brazil.

Validator

Brazil CPF (Tax Registration) — Validates the position weighted Mod 11 checksum.

Matched expressions

Regex expressions

Description

Score

(?i:\b[0-9]{11}\b)

Matches an 11-digit number of the format NNNNNNNNNNN.

1

(?i:\b[0-9]{3}\.[0-9]{3}\.[0-9]{3}-[0-9]{2}\b))

Matches an 11-digit number of the format NNN.NNN.NNN-NN.

1



Ignored expressions

None

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