Everything you need to know about paying in Argentina as a traveler, condensed into one reference page. Save it before you land.
Payment Methods at a Glance
| Method | Rate in 2026 | Works at | Requires | Verdict |
|---|
| CacaoCash (QR) | Mid-market ✅ | Most merchants | App + passport | Best for daily use |
| Credit/debit card | MEP rate (~1–3% above official) | Formal commerce | Your card | Good backup |
| Cash (casa de cambio) | MEP rate | Everywhere | USD/EUR cash + passport | Good for markets |
| ATM withdrawal | Official or MEP | Anywhere there's ATM | Foreign debit card | Use sparingly |
| Blue dollar | ~2–5% above official | Cash only | USD/EUR cash | Not worth it in 2026 |
| Mercado Pago | N/A | Everywhere | Argentine DNI ❌ | Not available to foreigners |
Your First 24 Hours in Argentina
- ✅ Set up CacaoCash before you fly — takes under 5 minutes, verification may take a few hours.
- ✅ Load your CacaoCash wallet with USD 200–500 to cover your first few days.
- ✅ Exchange a small amount of USD cash at the airport or a casa de cambio for immediate cash needs (taxis, tips).
- ✅ Notify your home bank that you're traveling so your cards aren't blocked.
- ❌ Don't exchange currency at the official airport exchange counters — rates are the worst in the city.
- ❌ Don't hand your card to a street vendor or unofficial "cambio" tout on Calle Florida.
Key Terms Every Argentina Traveler Should Know
- CBU — Clave Bancaria Uniforme. The 22-digit number that identifies an Argentine bank account. Like an IBAN.
- CVU — Clave Virtual Uniforme. The equivalent identifier for digital wallets (Mercado Pago, MODO, etc.). Works the same as CBU for transfers.
- Alias — a human-readable name (like "name.word.word") that replaces the CBU/CVU for transfers. Easier to share verbally.
- DNI — Documento Nacional de Identidad. Argentina's national ID. Required to open local bank accounts and digital wallets.
- CUIL/CUIT — tax identification number. Issued to workers (CUIL) and businesses (CUIT). Linked to DNI.
- SUBE — the national transit card used for buses, subways, and trains in Buenos Aires and other cities. Can be loaded at kiosks and Mercado Pago. Not accessible to foreigners without a local wallet.
- Dólar MEP — legal parallel exchange rate accessible through stock operations. About 1–3% above official in 2026.
- Dólar blue — informal parallel exchange rate. About 2–5% above official in 2026. Not worth the risk for small amounts.
- Cepo cambiario — currency controls. Largely dismantled under Milei, though some restrictions remain.
When to Use What
- Restaurant, café, supermarket → CacaoCash QR
- Street food, markets, taxis → CacaoCash QR or cash pesos
- Hotel, car rental, airline → Credit card
- Large cash purchase → Casa de cambio for pesos, then cash
- Emergency cash → ATM (last resort, withdraw maximum)
What to Avoid
- ❌ Airport exchange counters (worst rates in the city)
- ❌ Hotel exchange services (almost always worse than casas de cambio)
- ❌ Exchanging money with strangers on the street (counterfeit risk)
- ❌ Multiple small ATM withdrawals (each one costs $8–15 in fees)
- ❌ Trying to open a Mercado Pago account without a DNI (it won't work)
Quick Setup: CacaoCash in Under 5 Minutes
- Go to cacaocash.com and create an account with your email.
- Complete identity verification: photo of your passport + selfie.
- Load your wallet via bank transfer (ACH/SEPA/SWIFT), card, or crypto.
- In Argentina: open the app → Scan & Pay → point at any QR → confirm.
Done. You can now pay at any Argentine merchant that accepts QR codes — no DNI, no local bank account, no peso cash required.
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