Blog · 2026-08-07

CBU, CVU and alias in Argentina in 2026: bank details explained

The 22 digits that unlock Argentina's financial system: how CBU differs from CVU, what an alias is for, how a foreigner can get one, and how money actually moves - from salaries to crypto cash-outs.

Spend a week in Argentina and someone will ask for your "CBU or alias." Without these details you cannot receive a salary, pay rent, accept a transfer from a friend or cash out crypto into pesos. The good news: the system is logical, instant and mostly free. The bad news: a foreigner without local paperwork gets only limited access. Here is how it all works as of 2026.

Three identifiers, one system

Every account in Argentina's payment system has a unique 22-digit key, and every key can carry a human-readable nickname:

• CBU (Clave Bancaria Uniforme) - the key for an account at a traditional bank: Galicia, Santander, BBVA, Banco Nación and the rest.
• CVU (Clave Virtual Uniforme) - the key for an account at a fintech app or digital wallet: Mercado Pago, Ualá, Lemon, Belo, Personal Pay.
• Alias - a text nickname for a CBU or CVU, something like mate.perro.verde, that you can read out loud instead of dictating 22 digits.

For the sender there is no difference: a transfer to a CBU and a transfer to a CVU look identical, arrive instantly and cost zero pesos. That interoperability is the system's defining feature.

CBU: what the 22 digits mean

A CBU is assigned to every bank account in the country - peso and dollar accounts alike. The structure is standardized by the Central Bank (BCRA) and consists of two blocks:

You will find your CBU in your bank's app, in the account details section. One catch: your peso and dollar accounts have different CBUs, and a peso transfer sent to a dollar CBU will bounce.

CVU: the same thing, for fintech

The BCRA introduced the CVU in 2018 to plug wallets and fintech apps into the banking payment rails. Same 22-digit format, but the first block identifies the payment service provider (PSP) rather than a bank, and the second block identifies the individual user. Funds behind a CVU sit in segregated accounts - a wallet is not a bank, and there is no deposit insurance behind it.

In practice, every popular app has one: Mercado Pago (the market giant), Ualá, Personal Pay, Prex, plus the crypto platforms Lemon, Belo, Ripio and Buenbit, where the CVU serves as the bridge between pesos and crypto.

Alias: a nickname you control

An alias is a nationally unique string of 6 to 20 characters - Latin letters, numbers, dots and hyphens. When you open an account, the system generates a random alias (usually three words separated by dots), but you can change it any time inside your bank or wallet app: account details → "Cambiar alias." If an alias is taken, you cannot claim it.

A practical tip: make it memorable (name + surname + bank), because you will dictate it constantly - to landlords, employers, market vendors. And remember: an alias belongs to a specific account, not to a person. Five accounts means five different aliases.

CBU vs CVU: side by side

Transferencias 3.0: why everything is instant and free

Since 2021 Argentina has run Transferencias 3.0: all transfers between CBUs and CVUs settle in real time, around the clock, with no fees for individuals. Banks must allow instant transfers of at least 15,000 UVA per day without a prior request (the peso equivalent is indexed and runs into the millions), and higher limits are available on application. Wallets set their own internal limits depending on your verification level.

The other pillar is interoperable QR codes: any QR code in a café or taxi can be paid from any app. That is why cash keeps receding in cities like Buenos Aires.

One caveat the marketing leaves out: transfers are free between individuals. If you operate as a monotributista or through a company, different rules kick in - the 0.6% debits-and-credits tax ("impuesto al cheque") on business accounts and provincial Ingresos Brutos withholdings on wallets for registered taxpayers. Our Argentina tax guide covers the details.

How a foreigner gets a CBU or CVU in 2026

Here comes the inconvenient truth. Argentina's banking system is welcoming to residents and cold to tourists.

Step 1: a tax identifier

• CUIL - the individual identifier, issued alongside your DNI (i.e. after you obtain residency).
• CUIT - the equivalent for the self-employed and companies, issued by ARCA (the former AFIP).
• CDI - the identifier for non-residents, obtainable with just a passport. But a CDI alone is generally not enough to open a traditional bank account - banks want a CUIL/CUIT and a DNI.

Step 2: pick your entry point

The takeaway is simple: full access to the system is a function of residency. Argentina issues DNIs fast by regional standards - especially for families choosing birth in Argentina and applicants under the family-reunification route through a citizen child. From there, the path to Argentine citizenship opens up - one of Latin America's strongest passports. Still choosing a country? See our guide on where to relocate in 2026.

The relocator's playbook: crypto, rates, limits

The classic 2026 pipeline: USDT → a local crypto platform (Lemon, Belo, Ripio, Buenbit - all regulated by the CNV as PSAVs) → sell for pesos → withdraw to your own CVU or CBU. The alternative is Binance P2P, where a buyer sends pesos straight to your account, typically at a 1-3% spread. Since currency controls were lifted for individuals, the gap between the official and "blue" rates has narrowed, and the crypto route is now more about convenience than arbitrage.

Keep in mind:

• ARCA automatically receives data on account and wallet flows above reporting thresholds (for individuals, roughly ARS 50 million per month combined as of 2026; thresholds are indexed regularly). It is not a tax - it is a trigger for source-of-funds questions.
• Regular incoming P2P transfers to a personal account can be classified as commercial activity, with the tax consequences that follow.
• If you are an Argentine tax resident, worldwide income is reportable. How that interacts with other jurisdictions is the subject of our dual citizenship guide and our tax systems overview.

If you keep your core capital abroad, a foreign account is a sensible complement - we covered the options in our guide to opening a bank account abroad.

Common mistakes

• Mixing up peso and dollar CBUs. They are different keys - confirm the currency before sending.
• Misreading an alias. The app shows the recipient's name before you confirm - always check it.
• Treating a wallet like a bank. CVU balances carry no deposit insurance; keep large sums in a bank or in assets.
• Using a friend's account. Routing regular income through someone else's details is a fast track to an anti-money-laundering freeze.
• Ignoring your status. Operating Argentine accounts without settled immigration status is a stopgap. The long-term fix is residency - Argentine or otherwise, from digital nomad visas to a backup document such as Grenada citizenship by investment (full comparison in our Caribbean passports review).

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