Getting a CDI: The Foreigner's Tax ID for Buying Property in Argentina

Of all the things that can hold up a foreign buyer in Argentina, exactly one is administrative and unavoidable, and it is also the easiest to solve. It is a small number called a CDI. Sort it early and nothing else stands between you and a deed. Ignore it and you arrive at the closing table missing the one thing the escribano cannot proceed without.

So let me give it the short, complete treatment it deserves.

What a CDI is

CDI stands for Clave de Identificación. It is a tax identification key issued by the Argentine tax authority (ARCA, the agency formerly known as AFIP) for people who need to appear in official transactions but are not local taxpayers in the ordinary sense.

In plain terms: it is the number that lets a non-resident foreigner legally appear on a property deed in Argentina. Without it, you cannot complete the purchase, because you cannot be properly identified in the escritura. With it, you are cleared to buy.

What a CDI is NOT

This is where confusion costs people weeks, so let me be precise.

• A CDI is not a DNI. The DNI (Documento Nacional de Identidad) is the national identity document for residents and citizens. You do not need a DNI to buy property in Argentina. Many foreigners assume they must first become a resident. They do not. We cover this fully in the residency note.
• A CDI is not a CUIT or CUIL. Those are tax IDs tied to working, earning, or running a business in Argentina. If you happen to already hold a CUIT or CUIL, you are already covered. If you do not, the CDI is your path, and it does not require you to work or live here.
• A CDI is not residency, a visa, or a commitment. Obtaining one does not make you a tax resident or obligate you to anything beyond the transaction. It is identification, not immigration.

How you get one

The process is genuinely simple, which is why it frustrates me when buyers let it become a bottleneck:

1. Any Argentine accountant can obtain it for you. This is routine work for a local contador.
2. You provide a passport and a proof of address. That is the core of what ARCA needs.
3. It can often be arranged before you even arrive in the country, so the document is waiting when you are ready to transact.

There is no interview to pass, no residency to establish, no months-long queue. It is paperwork handled by a professional who does it constantly.

What it costs and how long it takes

The CDI itself is an administrative item, not a major expense. The real cost is the accountant's modest fee for handling it. Timing depends on the accountant and on ARCA's processing, but it is measured in days to a couple of weeks, not months, especially when started early. The single most expensive version of this step is the one where the buyer leaves it to the last minute and discovers it on the eve of signing.

Where it fits in the purchase

The CDI belongs at the very front of your timeline, alongside finding your broker and opening your local account. Get it moving before you are choosing between apartments, not after you have agreed a price. By the time you reach due diligence and the deed, the CDI should already be done and forgotten, a solved problem rather than a live one. We treat it as a default first step for every foreign client.

The bottom line

The CDI is the one document that can actually stop a foreign purchase, and it is also the easiest obstacle in the entire process to clear. It is not a DNI, it is not residency, and it does not require you to live, work, or commit to anything in Argentina. Any accountant gets it with your passport and a proof of address, ideally before you land.

We arrange the CDI as a matter of routine for our foreign buyers, so it is never the thing standing between you and your keys. If you are planning a purchase, this is one of the first boxes we tick. The first call is free, and we will make sure the paperwork is ahead of you, not behind you.

Max.-