Same thing happened to my cousin.
The phantom QR code leading to a digital dead end is peak Argentine bureaucracy! Very few things work as intended here.
I was told The City recently pushed a major update to make the
Certificado de Domicilio a "100% online" process that can supposedly be done in minutes. When they rolled out this new system, they likely wiped the old landing pages- instantly killing the QR code that is generated. These "streamlined" updates are almost always designed for citizens who already have an Argentine DNI, frequently leaving the specific flow for foreigners broken, hidden, or stuck in a loop.
Here is how you can bypass the dead QR code and get this sorted out:
Ditch the QR code entirely. The specific process you are looking for is officially called the
"Solicitud de Certificado de domicilio para extranjeros sin DNI".
- Go directly to the Buenos Aires city portal (buenosaires.gob.ar) and log into your MiBA account.
- Should work here: https://buenosaires.gob.ar/gcaba_hi...itud-de-certificado-de-domicilio-real-en-caba
- If the new online system is actually functional for foreigners, it should allow you to upload your passport and the details of your two non-family Argentine witnesses (who must be over 18 and have valid Argentine DNIs) directly through the portal.
If the MiBA portal glitches out or blocks you because you don't have a DNI yet (a very common digital hurdle), you will have to skip the online headache entirely.
- Gather your physical passport, your two witnesses, and their physical DNIs.
- Head directly to a City Commune office (Sede Comunal). The Sede Central (Uruguay 753) or Subsede Comunal 2 in Recoleta (Vicente López 2050) are generally reliable options.
- Tell the desk agent that the online system for foreigners is throwing a 404 error and you need to process the witnesses manually.