How do you get a CUIL in Argentina in 2026?

Start residence paperwork with Migraciones so you have a precaria or residence certificate to show: Apply for a residence permit. Take passport, photocopies, and that Migraciones proof to an ANSES office. Many newcomers receive a provisional CUIL certificate during the same visit when documents are complete. Keep the printed constancia; employers and banks ask for the eleven-digit number.

CUIL identifies you inside the social-security system that funds retirement contributions, family allowances where applicable, and obra social health links for registered employees: Enrol in public health. Without it, formal payroll registration stalls even if a company wants to hire you: Work-life balance.

CUIT (Código Único de Identificación Tributaria) is the tax identity used for monotributo freelancers, companies, and broader AFIP tax operations. Many people who already have CUIL later operate with a related CUIT when they invoice. CDI (Clave de Identificación) can appear for limited tax situations when full CUIL or CUIT paths do not yet fit; treat it as a narrower tool, not a substitute for settlement residence.

Banking often asks for CUIL early and DNI for fuller products: Open a bank account and Get a DNI. Driving and lease paperwork still orbit DNI and domicilio more than CUIL alone: Convert a driving licence. Confirm AFIP steps with an accountant before you invent a freelance structure on day one. Store a photo of the ANSES constancia in your phone and email, because photocopies fade in backpacks and employers ask for the number again at onboarding.