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Validate Mexico TIN (RFC)

Free online Registro Federal de Contribuyentes validator. Instant validation using OECD-compliant rules for Mexico tax identification numbers.

Validation Workspace

Validate RFC

Enterprise checks for Mexico tax identification numbers.

Instant one-by-one format validation

Country

Mexico

Document

RFC format check

Enter a RFC to validate for Mexico

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Paste values with or without separators. Validation also checks a normalized value.

Use a real RFC sample to verify format compliance before filing.

About Mexico TIN (RFC)

The Registro Federal de Contribuyentes is the official tax identification number used in Mexico. Format: 13 characters for individuals (AAAA######XXX), 12 for legal entities

Valid Examples

  • ABCD560101ABC
  • ABC5601011A3

Invalid Examples

  • ABCD560101 (Incomplete)
  • ABCD5601011AA (Wrong format)

Common Use Cases

  • Tax declarations
  • Invoicing
  • Employment
  • Banking

Official source: Servicio de Administración Tributaria

Frequently Asked Questions

What is an RFC?
The RFC (Registro Federal de Contribuyentes) is Mexico's taxpayer registry ID. Individuals have a 13-character RFC, companies have 12 characters.
How is the RFC structured?
For individuals: 4 letters (surname + first name) + 6 digits (birthdate YYMMDD) + 3 chars (homoclave + check digit).

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