Getting CUIT or CUIL in Argentina as an American

What should I check?

• Ask which activity requires CUIT, CUIL, CDI, or another identifier
• Use current ARCA and ANSES instructions for the applicant's status
• Prepare passport, DNI or residence, address, and supporting evidence
• Do not treat an identifier as immigration or tax advice by itself

Which documents should I gather?

Use the current official procedure to decide what is actually required. For every record, note the issuer, date, format, intended recipient, and any apostille or translation requirement.

1. Passport and Argentine identity or residence evidence
2. Employer, invoice, business, or bank request for an identifier
3. Address and contact records requested by the process
4. ARCA CUIT and ANSES CUIL instructions
5. Questions about tax, payroll, social security, and status

Start with the institution's request

Ask why the identifier is needed, who will use it, what activity it supports, and when it is required. An employer may need an employment and social-security identifier, while a person invoicing services or managing a business may need a tax identifier. A bank or platform may use its own onboarding terms.

Write the activity, employer or client, contract, invoice, payroll, business, or account facts beside the request. Do not apply for every number simply because a guide lists CUIT, CUIL, and CDI together. The responsible institution can identify the current route for the actual transaction.

Separate CUIT, CUIL, and CDI

ARCA publishes CUIT registration information and special instructions for some foreigners without a DNI. ANSES publishes CUIL information for employment and social-security administration. CDI and other identifiers can arise in different circumstances. The labels should not be swapped because a number format looks similar.

Ask the office whether the application uses a passport, DNI, residence record, address, employer evidence, tax facts, or a digital service. Save the page, form, attachment, and date checked. If the process names a special case, follow that page rather than a generic application.

Connect the number to the real activity

An identifier can allow an institution to register a transaction, but it does not by itself grant work permission, confirm tax residence, or decide whether an invoice or company structure is lawful. Give Migration, ARCA, ANSES, the employer, and a qualified professional the same facts and ask each question within its role.

Keep records of the request, submission, confirmation, password or access route, and any update obligation. A change of employer, address, residence, business, or activity can require a new review. Protect the identifier and do not share it through an unverified message.

Next step: obtain a written identifier map

Make a table with the activity and requesting institution. Then add identifier, evidence, application route, owner, and date. Confirm it with ARCA, ANSES, the employer, or a qualified adviser before filing. Recheck after a change in status or activity.

Identifier processes, forms, digital access, and tax or employment rules can change. Verify current official instructions and obtain professional advice for a business, payroll, or tax decision.

Choose the identifier from the activity that requires it. An employer, bank, tax authority, social security office, or business process may ask for different evidence. Describe the activity and requesting institution before submitting a form. Keep the passport, residence or status record, address, employer or contract evidence, and response together. Ask ARCA, ANSES, the employer, or a qualified adviser which identifier and route apply. Do not treat CUIT, CUIL, CDI, and DNI as interchangeable. The correct identifier follows the activity and institution, not a general promise that one document works everywhere.

Official sources

Check the current version before acting.

• Inscripción digital para obtener CUITAgencia de Recaudación y Control Aduanero
  Open official source
• ARCA services and tax information portalAgencia de Recaudación y Control Aduanero
  Open official source
• Código Único de Identificación Laboral (CUIL)Administración Nacional de la Seguridad Social
  Open official source
• DNI para extranjerosRegistro Nacional de las Personas
  Open official source

Common questions

What should I read next?