Money in Buenos Aires 2026: Cards, Cash and Dollars

In October 2023, a US$100 bill changed on Calle Florida got you nearly three times as many pesos as the same dollars run through a bank. Travel guides told everyone to fly in with stacks of cash, and the street touts shouting "¡cambio, cambio!" were the real central bank for tourists. In October 2026 that trick is basically dead. On Monday, October 19, 2026, El Cronista put the blue (informal) dollar at 1,555 pesos to sell and the wholesale official rate at about 1,532: a gap of roughly 1%. The rules of money in Buenos Aires changed, and a lot of advice online has not caught up.

Here is how paying actually works now, what to bring, and where you can still lose money.

What changed: from the cepo to the bands

From 2019 to April 2025 Argentina ran the cepo cambiario, strict controls that limited how many dollars locals could buy. That created a zoo of exchange rates: official, blue, MEP, CCL, "tourist", "card" and more, with gaps that at times went past 100%.

In April 2025 the government lifted most of those controls for individuals and moved to a floating band: the peso floats freely between a floor and a ceiling, and the Central Bank (BCRA) only steps in at the edges. Since January 2026 those limits move every month in line with the latest inflation figure. In mid-October 2026 the ceiling sat around 1,936 pesos per dollar, while the market traded far below it, near 1,530.

What this means for you as a visitor:

The official, MEP (a legal financial dollar) and blue rates now sit within a few percent of each other. As of October 16, 2026, Banco Nación sold dollars at 1,530 and the MEP traded around 1,536.
There is no longer a huge prize for bringing cash, and no huge penalty for using a card.
Prices in pesos still move. Inflation is much lower than in 2023, but it has not disappeared, so a menu you saw online six months ago may be out of date.

Exchange rates move daily. Check a live source (Banco Nación, DolarHoy or the La Nación quotes) the week you travel; the numbers in this guide are a snapshot from October 2026.

Foreign cards: now usually the easiest option

Since late 2022, purchases made in Argentina with cards issued abroad are settled at a rate tied to the MEP dollar, not the old low official rate. With all rates so close, this matters much less than it did, but it is the reason cards stopped being a bad deal.

Practical rules:

Always choose pesos (ARS) when the card machine or the waiter asks. If you pick dollars, the merchant's bank does the conversion with its own, usually worse, rate (this is called dynamic currency conversion).
Use a card without foreign transaction fees. Many banks charge 1% to 3% on every purchase abroad, which now costs you more than any difference between exchange rates.
Visa and Mastercard work almost everywhere in Buenos Aires: restaurants, supermarkets, museums, taxis booked by app. Amex gets the same rate but is accepted in far fewer places.
Check the first purchase on your statement. If it posted at a rate clearly below the market, call your bank before spending more.

Cash: still useful, just not magical

You still want some pesos in your pocket. Small cafés, kiosks, ferias like San Telmo's Sunday market, and tips usually run on cash. Some neighborhood restaurants also give a 10% to 15% discount for paying in cash (ask "¿hay descuento en efectivo?").

Where to get pesos:

Bring US dollars or euros and change them at an official casa de cambio. There are several on and around Calle Florida, Reconquista and Sarmiento in the Microcentro. Bring clean, uncreased US$100 bills of the recent series (blue stripe); older, torn or marked notes are often refused or get a worse rate. Count your pesos at the counter.
Skip the arbolitos. The guys shouting "cambio" on Florida offer about the same rate as an official exchange office now, with real risk of fake notes or sleight of hand. With a gap of 1%, there is nothing to gain.
Skip the airport exchange desks except for a small amount. Their rates are usually the worst you will see.
Leftover pesos are hard to change back outside Argentina, so plan to spend them.

The biggest Argentine note is now 20,000 pesos (worth about US$13 in October 2026), and 10,000-peso notes are common. Keep some 1,000 and 2,000 notes for tips and small purchases.

ATMs: the expensive route

Argentine ATMs (look for Banelco and Link networks) accept foreign cards, but this is the costliest way to get pesos. Each withdrawal carries a local fee that can reach the equivalent of US$8 to US$10, plus whatever your own bank charges, and many machines cap foreign withdrawals at a low amount per transaction. Limits and fees change often by bank, so check the screen before confirming. Use ATMs as a backup, not as your plan A.

Western Union: a niche tool now

For years, sending money to yourself through Western Union and picking up pesos in Buenos Aires beat almost every other option, because WU paid near the financial dollar while banks paid the low official rate. Travel guides in mid-2026 reported a WU rate around 1,520 pesos per dollar, basically level with the MEP. It can help if your cards fail, but expect lines, limited branch hours and offices that sometimes run out of cash. For most trips, it is no longer worth the effort.

QR codes and Mercado Pago

You will see QR stickers everywhere, from cafés to street vendors. Argentines pay with apps like Mercado Pago, which normally require a local ID. Since 2023 the Central Bank allows foreign digital wallets to pay Argentine QR codes at a rate tied to the financial dollar, and some international fintech apps (Global66 is one) already let visitors pay local QR codes. Brazilian visitors can pay with Pix at many merchants using Mercado Pago terminals. Coverage depends on your app, so check whether yours supports Argentine QR before relying on it. In places that only take QR, ask if they can charge your card through their terminal instead.

Hotel VAT: the 21% you can save

Argentina gives foreign non-residents a 21% VAT (IVA) discount on accommodation, including breakfast when it is part of the rate. To get it:

Show your foreign passport and the immigration entry record.
Pay with a card issued abroad or an international transfer. Cash does not qualify.
The hotel must be a registered VAT taxpayer. Most hotels are; many apartment rentals and small guesthouses are not.

The national tourism board listed this benefit as in force in 2025, and tax advisers still listed it for the 2026 summer season. Confirm when you book and again at check-in, and check the invoice.

Tipping

Tips: around 10% in restaurants, in cash, even if you pay the bill by card. Card machines usually cannot add a tip.

A simple money plan for Buenos Aires

Pay most things with a no-fee Visa or Mastercard, in pesos.
Bring US$200 to US$400 in clean US$100 bills for a one-to-two week trip and change them at an official casa de cambio as you need them.
Keep small peso notes for tips, kiosks and ferias.
Use ATMs and Western Union only as backup.
Pay your hotel with a foreign card to get the VAT discount.

Explore Buenos Aires with Trevurs

Now that your money is sorted, put the city's own money stories in your ears. Trevurs has free, self-guided audio tours that work offline. "La Recoleta: Power, Money and Eternity in Buenos Aires' Most Exclusive Quarter" walks you through the mansions and tombs built by the fortunes of the cattle boom. "Plaza de Mayo: The Square That Made a Country" takes you a few blocks from the casas de cambio to the Casa Rosada and the Cabildo, where every economic crisis ended up in the street. And "San Telmo: the Neighbourhood Left Behind When the Rich Fled the Yellow Fever" is perfect for a Sunday at the feria, with some cash in your pocket. Download them before you land and press play.

Money in Buenos Aires 2026: Cards, Cash, Dollars and What Changed