CUIT/CUIL Generator (Argentina)

Generate valid CUIT (Clave Unica de Identificacion Tributaria) and CUIL numbers for testing purposes. Includes check digit validation.

international.disclaimer

This tool generates fictitious data intended exclusively for software testing and development purposes. The data does not correspond to real people or entities and must not be used for illegal, fraudulent purposes, or in ways that violate the privacy of others. Compliant with LGPD (Brazilian Data Protection Law).

See also:

CNH Generator
Voter ID Validator
AIH Validator
Credit Card Validator
State Registration Generator
PIS/PASEP Generator
RG Generator
RUT Validator (Chile)

About CUIT (Argentina)

What is CUIT?

CUIT (Clave Única de Identificación Tributaria) is Argentina's tax identifier, equivalent to Brazil's CPF/CNPJ. It has 11 digits in XX-XXXXXXXX-D format, where the first 2 identify the taxpayer type (20 for male individuals, 27 for female, 30 for companies).

Verification algorithm

The check digit is calculated by multiplying the first 10 digits by weights 5, 4, 3, 2, 7, 6, 5, 4, 3, 2, summing the products, and obtaining the remainder of division by 11. The check digit is 11 minus the remainder, with special handling for 0 and 11.

Use in development

E-commerce systems, electronic invoicing platforms, and fiscal applications for the Argentine market require CUIT as a mandatory field. Use fictitious numbers generated by Help4Dev to test these flows.