Tax identification types for Mexico
All customers and vendors must have a federal tax identification number. The identification type used for a customer or vendor depends on whether the customer or vendor is classified as a company or as a person.
Available tax identification types
In Mexico, a legal entity, such as a company or a person, is assigned a tax identification number according to two types.
Registro Federal de Contribuyentes (RFC)
This tax identification type can be applied to companies and to people. An RFC number for a company is 12 characters, while an RFC number for a person is 13 characters.
Clave Única de Registro de Población (CURP)
This tax identification type can only be applied to people. A CURP number is 18 characters.
On the Customer Card or Vendor Card, set Tax Identification Type to Legal Entity for a company or Natural Person for a person. Then fill in RFC No. with 12 or 13 characters, respectively. If you enter a CURP number, the CURP No. field must contain 18 characters.
For your own company, use the RFC Number field on Company Information. This field also supports 12-character and 13-character RFC numbers.