CBU
The CBU (Clave Bancaria Uniforme) is a 22-digit standardized account number used in Argentina for all electronic transfers. Introduced by the Banco Central de la República Argentina (BCRA), it uniquely identifies a bank, branch, and account.
At a glance
Country
Argentina
Identifier
CBU
Format
22 digits
Used for
Domestic transfers
Format breakdown
011
Bank Code
1–3
Institution (e.g. 011 = Nación)
0064
Branch
4–7
Branch identifier
0
Check
8
First check digit
0027100022631
Account
9–21
Account number
1
Check
22
Second check digit
How it works
The first 3 digits identify the bank, digits 4–7 identify the branch, digit 8 is a check digit, digits 9–21 are the account number, and digit 22 is another check digit. The CVU (Clave Virtual Uniforme) is the digital wallet equivalent.
Where to find yours
In your homebanking portal, mobile banking app, or by requesting it at your bank branch.
Payment systems in Argentina
| System | Speed | Description |
|---|---|---|
| Transferencias 3.0 | Instant | Interoperable QR-based instant transfer system |
| DEBIN | Real-time | Direct debit request system — pull payments approved by the payer |
| MEP/CCL | 1–2 business days | Settlement for securities and financial instruments |
Major banks in Argentina
Good to know
CVU (Clave Virtual Uniforme) is the equivalent of CBU for digital wallets like Mercado Pago, Ualá, and Brubank.
Key bank codes: 011 = Nación, 007 = Galicia, 072 = Santander, 285 = Macro.
Transferencias 3.0 enables instant transfers between bank accounts and digital wallets using QR codes.
Related tools
Other countries
Frequently asked questions
Don't see the answer you're looking for? Get in touch.
Apply in less than 10 minutes today
Join the 5,000+ businesses already using Slash.