How to Pay Less IOF on Booking in 2026 (Complete Guide)

On a 4-night reservation in London at £250 per night, a traditional credit card charges about R$437 just in IOF and spread. The Picnic card, for the same expense, charges about R$19. The difference is not in what you booked, but in how you paid.

This article is not about avoiding taxes. IOF is a federal tax, it is in effect, and ignoring it is a sure recipe for disappointment when your bill arrives. What exists is a math that almost no one explains properly: the rate is the same on almost all international cards, but the issuer's spread and the currency of your balance change the total cost by an order of magnitude. On a large Booking reservation, the right card choice can save you more than an entire night's stay.

Picnic is a technology platform operating globally since 2021 and offers, in Brazil and Europe, an international account with a Visa card in digital dollars. All data in this article was verified in May 2026.

What is IOF on a Booking reservation

IOF (Tax on Financial Operations) is a federal tax charged by the Union on foreign exchange operations, among others. On a reservation paid on Booking with an international card, it is charged on the purchase amount, in BRL, at the moment the card issuer settles the transaction. The rate is the same whether Booking processes the payment ("Pay Now") or the hotel processes it directly ("Pay at Property"). The full coverage of the tax, with the types of operations it affects, is in our guide on what is IOF.

Rate in effect in 2026

Since July 2025, the IOF on international purchases with cards has been unified at 3.5%. The rule applies to credit, debit, and international prepaid cards, and is set out in Decree No. 12,499/2025. There are two reduced rates with specific application:

BCB Resolution No. 521/2025 classified certain operations with digital dollars as foreign exchange operations, and the application of IOF (3.5%) on transactions with cards in this category still depends on supplementary regulation. Currently, IOF is not charged on these transactions. This is the path followed by Picnic.

The reduction schedule until 2028 was revoked

You may have seen in some old article a reference to a "gradual reduction of IOF on international cards to zero by 2028." That schedule existed before 2025 and was revoked by Decree 12,499/2025. The rate is no longer automatically decreasing. In 2026, the rate that applies to most cards is 3.5%, and there is no public forecast for a reduction in the short term.

Pay Now or Pay at Property: does IOF change?

Booking offers two payment models:

• Pay Now (Booking processes): you pay at the time of booking. Booking charges your card and passes the amount to the hotel.
• Pay at Property (hotel processes): Booking only guarantees the reservation. The hotel charges your card at check-in or check-out.

For IOF purposes, both trigger the same rate when payment is made with an international card. The tax is charged by the issuer (bank or fintech) when the transaction is settled in foreign currency, regardless of whether the processor is Booking or the hotel.

Where the two paths differ is in three points:

1. Spread embedded in the charge. Booking, when charging in BRL for Pay Now, applies its own conversion and adds a margin. When the hotel charges directly, in local currency, this extra margin does not exist. Paying in the hotel's currency is almost always cheaper.
2. Exchange rate risk between booking and check-in. With Pay Now, the exchange rate is locked in on the day of booking. With Pay at Property, the exchange rate is only set at check-in. For reservations with free and flexible cancellation, Pay at Property protects against a rise in the dollar but exposes you to a possible drop.
3. Refunds. Refundable cancellations with Pay Now require reversing the entire transaction, including the IOF already collected. In general, the IOF is refunded proportionally by the issuer, but the timeframe varies between 30 and 90 days. With Pay at Property, if you cancel before the deadline, no amount has been charged and nothing needs to be refunded.

As a rule: if the reservation is non-refundable and you want to lock in the exchange rate, Pay Now in local currency is the best path. If the reservation is flexible and check-in is months away, Pay at Property avoids the hassle of refunds.

Which currency to pay in (and why it matters)

In the payment flow, Booking always offers two currency options: BRL (default for Brazilian users) and the hotel's currency. This is the choice that most affects the total cost.

Paying in BRL is almost never the best choice

When you choose to pay in BRL on Booking, Booking does the conversion internally, with a rate that includes its own margin. The card receives the transaction as a purchase in BRL made at a foreign establishment. On top of the BRL converted by Booking, the 3.5% IOF is still charged. You pay two layers of spread (Booking's and, if applicable, your card's), and still pay IOF.

Paying in the hotel's currency is almost always cheaper

By selecting the hotel's currency (GBP, EUR, JPY, etc.), Booking passes the transaction to your card issuer in local currency. There is no intermediate conversion. The 3.5% IOF is charged just the same, but you cut out Booking's margin and are left only with your issuer's (zero, in Picnic's case).

Beware of DCC at the counter

At some hotels, when you present your international card at check-out, the POS terminal offers to charge in BRL (the so-called "Dynamic Currency Conversion," or DCC). The rate for this conversion is always worse than your issuer's, and IOF still applies. Always refuse and ask to be charged in local currency.

Default currency by destination

Reference table for the main destinations of Brazilians booking through Booking:

This currency difference also affects how much the Visa network margin (~0.3%) impacts the purchase. For a full overview of the spread concept, check out the guide on exchange spread and the difference between commercial, tourism, and digital dollar.

The three levers to pay less IOF on Booking

The card choice is the lever with the greatest impact. The other two (remittance path and balance currency) are consequences of that choice.

Lever 1: the card used

The table below compares the total cost on a US$1,500 reservation (equivalent, in local currency, at a hotel outside the US). The cost is broken down into IOF + issuer spread + Visa network margin, as applicable for each card.

The Picnic card keeps a balance in digital dollars. Since the balance is already in foreign currency, purchases in USD do not go through conversion, and the Visa network margin (~0.3%) only applies to non-USD currencies. On a reservation in Orlando, the total cost tends to zero. On a reservation in London or Tokyo, it is close to 0.3%. For a complete overview of this structure, see how an international card works and dollar account for Brazilians.

The Wise card, in its standard configuration, operates with a BRL balance converted at the time of purchase. The 3.5% IOF applies and Wise charges a spread of about 0.6%. With Saldo Rende+, the balance is allocated as a fund share, which reduces the IOF on the purchase to 1.1%. The detailed analysis of the Picnic versus Wise trade-off is in Picnic or Wise: which card is cheaper. Wise data source: wise.com/br/pricing/card-fees, verified on 2026-05-23.

"Global" cards from Brazilian digital banks (C6 Global, Inter Global, Bradesco Global, among others) charge the standard IOF and add a spread between 0.4% and 2%. They are reasonable options compared to traditional credit, but the IOF and spread keep the cost several times higher than Picnic.

The traditional credit card is the worst path for hotels in general. The 3.5% IOF is added to the issuer's spread (from 1% to 4%) and, in many cases, to the network partner's spread. The only advantage is the bill's due date. Important detail: if you split the purchase on your bill, embedded interest arises that raises the effective cost instead of reducing it. Splitting international expenses is the most expensive way to pay for a reservation.

Want to cut the IOF from your next reservation? The Picnic card, with a digital dollar balance, keeps IOF on purchases at zero. Order your card and take the savings to your next hotel.

Lever 2: remittance path (Rende+ on Wise)

For those already using Wise, Saldo Rende+ reduces the IOF on purchases from 3.5% to 1.1%. The mechanism is regulatory: the balance is allocated as a fund share, which classifies the operation as a remittance to investment, reduced rate. Wise maintains liquidity for card use. The trade-off is keeping the balance as a share, not as a strictly available balance.

For hotels with check-in in a few weeks, it's worth activating Rende+ before making the purchase. For reservations with Pay at Property months away, even more so.

Lever 3: digital dollar balance (Picnic model)

The third lever is the most structural. Picnic is currently the only provider available in Brazil where the international card is linked to a digital dollar balance. BCB Resolution No. 521/2025 classified certain operations with digital dollars as foreign exchange operations, and the application of IOF (3.5%) on transactions with cards in this category still depends on supplementary regulation. Currently, IOF is not charged on these transactions.

In practice, when using the Picnic card for a Booking reservation, the purchase is debited from the balance already in dollars. That's why the total cost for hotels in the US is zero, and for hotels in other currencies it's around 0.3% (only the margin that the Visa network applies to any conversion between currencies). There is no "tax trick": the structural position of the balance, defined by the product design, is what changes the result.

The real calculation: 4 nights in London at £250 each

Concrete scenario. You booked a hotel in South Kensington, £250 per night, 4 nights. Total: £1,000. Illustrative exchange rate from May 2026: £1 = US$1.26 = R$6.42. Equivalent in BRL before fees: R$6,420.

The difference between Picnic and the traditional bank credit card is R$418 for the same four nights. That alone pays for more than an extra night at the Premier Inn around the corner.

The real calculation: multi-country itinerary

Combined reservation: ¥80,000 in Tokyo + €1,200 in Rome + US$1,500 in Orlando. Illustrative exchange rates from May 2026: ¥1 = R$0.036, €1 = R$5.80, US$1 = R$5.10. Equivalent in BRL before fees:

• Tokyo: R$2,880
• Rome: R$6,960
• Orlando: R$7,650
• Total: R$17,490

The advantage of Picnic grows with the volume and with the USD proportion of the itinerary. For US-centered trips (Disney, Orlando, Miami), the savings come close to 100% of what would be paid in fees on other cards. This is covered in more detail in the guide on best card to use in the US.

Common mistakes that increase IOF (without realizing it)

Paying Booking in BRL thinking "it's simpler"

It's not. Booking adds a margin in the conversion to BRL, and IOF still applies. Always choose the hotel's currency.

Splitting the credit card bill for international purchases

Splitting adds embedded interest that raises the total cost above 8–10% on some products. On a R$5,000 reservation, splitting into 12 installments can add R$300 or more in interest, on top of IOF and spread. If you need to split, consider financing with an explicit and short-term rate.

Canceling and rebooking due to exchange rate fluctuations

With each cancellation and new reservation, IOF is collected on the new transaction. Refunds are not immediate, and the IOF from the refund can take 30 to 90 days. The result is immobilized cash flow and, on large purchases, a few reais lost along the way.

Accepting DCC ("Charge in BRL?") at the hotel counter

The rate is always worse, and IOF does not disappear. Refuse and ask to be charged in local currency.

Mixing BRL balance with international card

Some "global" cards offer to keep a BRL balance and spend abroad. This is the worst of both worlds: 3.5% IOF plus issuer spread plus network margin plus, eventually, a maintenance fee. If you choose a global card, always keep the balance loaded in foreign currency whenever possible.

Summary

You won't eliminate IOF on most cards. You can, however, choose a path where it doesn't apply or where the rate is reduced. Three levers are worth using together:

1. Use a card linked to a foreign currency balance. On dollar purchases with Picnic, IOF on the purchase is zero; on other currencies, the total cost is around 0.3%. It's the simplest path.
2. Pay in the hotel's currency, not in BRL. On any card, this cuts out a layer of margin.
3. Avoid splitting international expenses. The embedded interest is usually higher than the IOF you're trying to reduce.

Before closing your next Booking reservation, take the nightly rate and multiply it by 6% to 7%. That is, on average, the extra cost you pay in IOF and spread on a traditional bank credit card. On a R$5,000 reservation, that's about R$300 to R$350 that stays with the card. On a R$20,000 reservation, that's R$1,200 to R$1,400. Order your Picnic card and, on dollar purchases, that amount stays with you. To choose between Picnic and other options with the full math, it's worth reading the comparison between Picnic and Wise or the guide on international card with no annual fee.

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Picnic is a technology platform that lets users independently interact with USDC, a U.S. dollar-pegged stablecoin issued by Circle, on public blockchains. USDC is not legal tender in Brazil.

Displayed exchange rates vary with market conditions. The final applicable amount is the one shown on the transaction confirmation screen. Cryptoassets involve risks, including volatility and loss of peg.

Picnic does not custody user assets and is neither a financial institution nor a virtual asset service provider. Sending and receiving U.S. dollar payments through a U.S. account is offered in partnership with Noah Savings Inc. Terms and conditions apply.

Information verified in April 2026.