# What is CUIT?

The CUIT is Argentina's tax ID. It has 11 digits, and the first two show the kind of taxpayer: 30, 33 or 34 for a company, and 20, 23, 24 or 27 for a natural person. Argentina's national register of companies publishes it for every company, and the tax office's lists are keyed by it.

- Manufacturers in Argentina: the public record explained: https://testigomexico.com/guides/public-record-argentina
- The APOC list in Argentina, explained: https://testigomexico.com/guides/apoc-argentina
- Check an Argentine supplier by CUIT: the APOC list: https://testigomexico.com/check/argentina
- How to check a supplier in Latin America before you visit: https://testigomexico.com/guides/check-supplier-latin-america
- Glossary: the words behind every record: CUIT (Clave Única de Identificación Tributaria): https://testigomexico.com/glossary#cuit


Cite as: Testigo, "What is CUIT?", https://testigomexico.com/questions/what-is-cuit, data file 2026-10-12.

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This is the Markdown version of https://testigomexico.com/questions/what-is-cuit. Testigo: Testigo is supplier intelligence for people who source from Latin America: a search over manufacturers taken from the official public registry of each country. Each record shows its source, its date and what was not checked.