Getting a CUIL Number in Argentina

To get a CUIL (Código Único de Identificación Laboral), you must visit an ANSES office in person with your original DNI (or passport if you are a foreign resident). The process is free, instant, and typically takes 15 minutes once you reach the counter.

  1. Check your status. Before heading to an office, check if you already have one on the ANSES website. Many residents are assigned one automatically upon receiving their DNI.
  2. Gather your documents. Bring your original DNI (Documento Nacional de Identidad) and a photocopy. If you are a foreign resident without a DNI yet, bring your passport and residency documentation.
  3. Find an ANSES office (UDAI). Locate the nearest UDAI (Unidad de Atención Integral) office via the official ANSES website. Avoid going on Mondays or the days immediately following a holiday, as these are the busiest times.
  4. Obtain your proof. Request the 'Constancia de CUIL' at the desk. The clerk will print a formal document that you should save as a PDF, as you will need to upload this for banking, employment, and utility sign-ups.
Can I get my CUIL online?
If you have a DNI, you can often download your constancia from the ANSES website. If you are a foreigner just arriving, you almost always need an in-person visit.
Do I need an appointment?
Policies fluctuate. Check the current ANSES 'Turnos' page to see if your local branch requires a pre-booked appointment or accepts walk-ins.
Is the CUIL the same as a CUIT?
No. The CUIL is for employees. If you are starting a business or working as an independent contractor (monotributista), you will need to register for a CUIT (tax ID) at AFIP.