Quick answer
In Foz do Iguaçu you pay in Brazilian reais (R$). Some tourist shops accept dollars and Argentine pesos, but at unfavorable exchange rates. The most practical approach: bring an international debit/credit card and some cash reais for small expenses like tips, local transport and market purchases.
What currency is used in Foz do Iguaçu?
Foz do Iguaçu is in Brazil, so the official currency is the Brazilian real (R$). Although the city receives millions of tourists every year and some shops have adapted to accept other currencies, the reality is that to get the best prices and avoid exchange rate losses, you need to pay in reais or with an international card.
In this guide we explain which payment methods work, where to get reais, how much to bring, and tips so you don't lose money on the exchange.
Accepted payment methods in Foz do Iguaçu
Brazilian reais (R$)
Acceptance: UniversalThe local currency. Accepted at absolutely every shop, restaurant, excursion, taxi and public transport. This payment method guarantees the best price.
International credit/debit card
Acceptance: Very highVisa, Mastercard and American Express are accepted at most restaurants, hotels, malls and tourist shops. Keep in mind that your bank may charge a foreign transaction fee (generally 3-5% on the amount). Some small shops and markets don't accept cards.
Pix (Brazilian digital payment)
Acceptance: Universal in BrazilPix is Brazil's instant payment system and the most used method by Brazilians. It works with QR or key. It requires a Brazilian bank account, so it's generally not an option for foreign tourists.
US dollars (USD)
Acceptance: LimitedSome hotels, exchange offices and large tourist shops accept them, but the exchange rate they apply is usually much worse than the official rate. Useful as a backup but not as your primary payment method.
Argentine pesos (ARS)
Acceptance: Very lowVery few places accept them and the exchange rate is terrible. It is not recommended to bring Argentine pesos as payment for Foz. Exchange to reais before crossing the border.
Quick comparison: payment methods
| Payment method | Convenience | Acceptance | Exchange rate |
|---|---|---|---|
| Reais (R$) | High | Universal | The best |
| International card | Very high | Very high | Good (+ bank fee) |
| Pix | Very high | Universal | N/A |
| Dollars (USD) | Medium | Limited | Poor in shops |
| Pesos (ARS) | Low | Very low | Terrible |
Recommended combination: international card for large purchases + cash reais for small expenses.
Where to get reais
You have several options to get reais, both on the Argentine and Brazilian side. Each one has its advantages:
Exchange offices in Puerto Iguazú
There are several on Av. Victoria Aguirre and downtown Puerto Iguazú. They usually offer good exchange rates for pesos to reais. You can compare rates at several before exchanging. The most convenient option if you're already in the city.
Tip: Compare at least 2-3 exchange offices before deciding.
Exchange offices in Foz do Iguaçu
There are also exchange offices in Foz, especially around Av. Brasil and in the malls (Catuaí Palladium, Shopping JL). If you're bringing dollars, the exchange rate is usually better in Brazil than in Argentina.
Tip: Always ask for the exchange receipt.
ATMs in Foz
You can withdraw reais with your international debit card at ATMs from Banco do Brasil, Itaú, Bradesco and others. It's practical but keep in mind that your bank may charge a foreign withdrawal fee and the exchange rate is set by your issuing bank.
Tip: Notify your bank before the trip that you'll be using the card in Brazil.
Banks in Puerto Iguazú
Some banks in Puerto Iguazú sell reais, but they generally require you to be a customer and the process is slower than at an exchange office. Not the most agile option for tourists.
Tip: Check opening hours: most close at 1:00 PM.
How many reais to bring in cash
The amount depends on your itinerary and how much you plan to use your card. As a general guide:
Day trip (Brazilian side of the falls)
Bring enough reais for the park entry, lunch and some souvenirs. If you have an international card, a small amount of cash is enough.
Full day with shopping and dinner
Malls and restaurants accept cards, but bring extra reais for tips, local transport and purchases at small shops that only accept cash.
Multi-day stay in Foz
Calculate a daily cash amount for expenses (informal meals, tips, transport) and use your card for hotel and large purchases. Don't exchange everything at once: the exchange rate can vary.
Tip: Don't exchange large amounts at once. If you have leftover reais when returning, the exchange rate to convert back is usually worse. Better to exchange gradually as needed.
Tips for managing money in Foz
Notify your bank before the trip
Call or use your bank's app to enable your card for use in Brazil. If you don't, the bank may block transactions for security reasons.
Always carry some cash
Although cards are accepted in most places, it's always good to have cash reais for tips, market purchases, craft stalls and local transport.
Keep your exchange receipts
Exchange office receipts are your backup in case of any claim. Also, when returning to Argentina, Customs may ask you to justify the origin of foreign currency.
Beware of street money changers
Avoid exchanging money with people on the street. Besides the risk of receiving counterfeit bills, it's illegal in Brazil.
Check the exchange rate before accepting
If a shop offers to let you pay in dollars or pesos, ask at what rate. It's generally better to pay in reais or with a card than to accept the shop's exchange rate.
Choose to pay in the local currency with your card
When paying by card and the terminal gives you the option to pay in your home currency or in reais, always choose reais. The home currency conversion at the terminal (DCC) usually has a hidden surcharge.
Frequently asked questions
Do they accept Argentine pesos in Foz do Iguaçu?
Very few places accept Argentine pesos, and those that do apply a very unfavorable exchange rate. It's not recommended to bring pesos as your main payment method. Exchange to reais before crossing or use an international card.
Is it better to exchange money in Argentina or Brazil?
It depends on the day's rate. Exchange offices on Av. Victoria Aguirre in Puerto Iguazú usually offer good rates for pesos to reais. Foz also has competitive exchange offices. Compare before exchanging and avoid airports or hotels where rates are worse.
Do international ATMs work in Foz do Iguaçu?
Yes, if your debit card is enabled for international use (Visa, Mastercard, Cirrus/Maestro). You can withdraw reais at ATMs from Banco do Brasil, Itaú or Bradesco. Your bank may charge a foreign withdrawal fee and the exchange rate is set by your issuing bank.
Can I use Mercado Pago in Foz do Iguaçu?
No. Mercado Pago from Argentina doesn't work in Brazil. They are separate payment systems. In Brazil the equivalent is Pix, which requires a Brazilian bank account. For digital payments in Foz, use your international credit or debit card.
Should I bring dollars or reais to Foz do Iguaçu?
For expenses in Foz, reais are better because it's the local currency accepted everywhere without exchange rate loss. Dollars can serve as a backup, but if you use them directly in shops the exchange rate is usually poor. The ideal: cash reais for small expenses and an international card for large purchases.
Transfer to Foz do Iguaçu with a driver who knows the area
With Cataratas Taxi you cross to Foz do Iguaçu hassle-free. Our driver knows the trustworthy exchange offices, can recommend where to get the best rate, and takes you directly to your destination. Fixed fare via WhatsApp, no surprises.
Book transfer to Foz via WhatsAppLast updated: June 2, 2026 · Author: Hernán Pared, Cataratas Taxi (12+ years driving tourists between Puerto Iguazú and Foz do Iguaçu)