Every Brazilian who has ever paid a bill abroad knows the feeling: you check your card statement and see a 3.5% IOF charge sitting on top of the exchange rate, on top of your bank's spread, on top of whatever conversion fee the issuer added. By the time you add it all up, a $100 dinner abroad can cost you $108–$112 in real terms.

Crypto cards have emerged as a practical answer to this problem and in 2026, they've become mainstream enough that millions of Brazilians are using them for everyday international spending.

This guide explains exactly how crypto cards can reduce or eliminate IOF exposure for Brazilians, which cards work best, and what to watch out for.

What is IOF and why does it hit Brazilians so hard?

IOF (Imposto sobre Operações Financeiras) is Brazil's financial transaction tax. For international purchases made with Brazilian credit cards, debit cards, and prepaid cards, the current IOF rate is 3.5% on the foreign currency value at the time of conversion.

This tax applies to:

• International purchases on Brazilian credit and debit cards

• Prepaid cards issued by Brazilian institutions

• International transfers and remittances through traditional banking channels

On top of IOF, Brazilian banks and fintechs typically add a conversion spread of 2–4% when processing international transactions. Combined, the real cost of a foreign purchase through a traditional Brazilian card can reach 5.5–7.5% above the spot exchange rate.

For someone spending $5,000 abroad, a modest international trip, that's $275–$375 in taxes and fees.

How crypto cards reduce IOF exposure

Crypto cards issued outside Brazil's traditional banking system operate differently. When you fund a crypto card with USDC or USDT and spend abroad:

• The card is not issued by a Brazilian bank

• The transaction does not go through Brazil's regulated eFX (electronic foreign exchange) system

• The IOF tax is triggered by the conversion of reais into foreign currency through Brazilian institutions, not by spending from a pre-funded dollar-denominated account

Important: The regulatory landscape around crypto and IOF in Brazil is actively evolving. The Central Bank has taken steps to classify certain stablecoin transactions under foreign exchange rules, and proposals to extend IOF to some crypto operations have been discussed (though suspended as of mid-2026). Always consult a qualified Brazilian tax advisor for your specific situation.

What is clear: for many Brazilian users, crypto cards funded with stablecoins have provided meaningful cost savings compared to traditional international banking and they continue to do so under current rules.

Best crypto cards for Brazilians traveling abroad

1. Amulets — Top pick for Brazilians

Amulets is a global Visa card funded with USDC or USDT via the Solana network. It operates outside Brazil's traditional banking infrastructure, accepts Apple Pay and Google Pay, and pays Cryptoback in real SOL on every purchase.

Why it works for Brazilian travelers:

• Fund with USDC or USDT maintain dollar-stable value before and during your trip;

• Spend anywhere Visa is accepted globally. Amulets card works in the US, Europe, Asia, Latin America;

• No traditional banking FX markup. Competitive rates without the legacy spread

• Earn SOL on every purchase abroad. Your travel spending becomes passive SOL accumulation;

• No annual fee, no staking;

The Invite & Earn advantage for Brazilians: Brazil has one of the most active crypto communities in the world. Amulets' Affiliate Program is a natural fit: share your link on WhatsApp groups, Telegram channels, or Twitter, and earn SOL on every purchase your network makes, indefinitely. Plus, you can earn $5 for each eligible referral you make. 

2. KAST — Option for high spenders

KAST is Solana-native, available globally, and accepts USDC and USDT. The free Standard tier earns 1% in KastPoints + 4% in $MOVE tokens. FX fees of 0.5–1.75% apply on non-USD international purchases.

For Brazilians spending in USD (e.g., buying on US websites or in the US), KAST's fee structure is clean. For purchases in euros or local currencies, the FX fee adds cost. Physical cards ship internationally; virtual cards are instant.

3. Binance Card (Brazil) — Familiar but limited

The Binance Card in Brazil is a Mastercard with up to 2% cashback in BNB (capped at 250 BRL/month) and a 0.9% conversion fee. It's a reasonable domestic option for existing Binance users, but its cashback cap and BNB dependency make it less compelling for extended international travel. The card is currently focused on the Brazilian market and may not perform as well for foreign-currency purchases.

Practical guide: setting up a crypto card with stablecoin as a Brazilian

Step 1: Acquire USDC or USDT
Purchase USDC or USDT on any exchange (Mercado Bitcoin, Coinbase, Binance, etc.) or directly with a Pix deposit where supported.

Step 2: Send to your Amulets account
Amulets provides a Solana-based USDC/USDT deposit address. Transfer takes seconds and costs under R$0.01 in gas fees.

Step 3: Activate Apple Pay or Google Pay
Add your Amulets virtual card to your phone wallet. No physical card needed for most travel scenarios.

Step 4: Spend normally abroad
Use at restaurants, hotels, shops, transport, anywhere Visa is accepted. Your USDC balance covers each purchase; SOL Cryptoback accumulates automatically.

Step 5: Manage your balance on the go
Top up with additional USDC from your phone, anytime. Solana transfers settle in under a second, 24/7.

Frequently Asked Questions

Do I pay IOF when using Amulets abroad?
Amulets is not a Brazilian bank and does not operate within Brazil's regulated foreign exchange system. Whether and how IOF applies to your specific use of a crypto card depends on your individual circumstances and the evolving regulatory framework. Consult a Brazilian tax advisor.

Can I fund my Amulets card with Pix?
Not directly. You fund Amulets by sending USDC or USDT from a Solana wallet. You can acquire USDC/USDT on Brazilian exchanges using Pix, then transfer to Amulets.

Is Amulets available in Brazil?
Yes. Amulets is a global product accepted anywhere Visa is accepted, including in Brazil and internationally.

What happens if my Amulets card is declined abroad?
Most major merchants accept Visa globally. If a card is declined, it's typically due to merchant-specific restrictions, not geographic ones. You can always top up your USDC balance instantly from your phone.

The bottom line for Brazilian travelers

The traditional cost of spending abroad from Brazil (IOF + bank spread + conversion fees) is genuinely high. Crypto cards funded with stablecoins offer a practical alternative under current rules, and the best ones add meaningful rewards on top.

Amulets stands out because it eliminates the fee problem and turns your travel spending into passive SOL accumulation, automatically, without any extra steps. Fund with USDC before you leave, spend normally wherever you go, and come home with more SOL than when you departed.

👉 Get Amulets and start spending smarter abroad: amulets.io