Brazil Classifies Stablecoins as Foreign Exchange; New Tax Regime Hits Feb. 2
Central Bank Resolutions 519-521 take effect, treating stablecoin flows as FX operations and paving the way for IOF taxes.
Stablecoins are now foreign currency in the eyes of Brasília.
As of Monday, February 2, the Central Bank of Brazil (BCB) has effectively rewritten the rulebook for crypto remittances. With the enforcement of Resolutions 519, 520, and 521, the BCB has reclassified fiat-pegged virtual asset transfers as foreign exchange (FX) operations. The move strips stablecoins of their “loophole status” and exposes the country’s $40 billion-plus annual crypto volume to traditional FX regulations, and likely the dreaded IOF tax.
The regulations ensure that the use of stablecoins does not create regulatory arbitrage vis-a-vis the traditional foreign-exchange market. Reuters Source
The Mechanics: Resolution 521
The core of the crackdown lies in Resolution 521. Previously, a transfer of USDT from a Brazilian wallet to an offshore exchange was a gray area. Now, it is legally identical to a wire transfer. Virtual Asset Service Providers (VASPs) must now hold specific authorization (SPSAV licenses) and report these flows directly to the BCB. For high-volume traders and importers using crypto to bypass bank spreads, the friction is back.
The immediate consequence is the potential application of the IOF (Tax on Financial Operations). While crypto assets were historically exempt from this transaction levy, their new classification as FX instruments provides the Finance Ministry the legal cover to apply rates that typically range from 0.38% to 6.38% on cross-border flows. This comes on top of the flat 17.5% capital gains tax introduced by Provisional Measure 1303 in mid-2025, which already eliminated the exemption for monthly sales under 35,000 BRL.
Volume at Risk
The stakes are massive. Market data indicates that stablecoins, primarily USDT, account for approximately 70% of Brazil’s crypto volume, which hit 227 billion reais (~$43 billion) in the first half of 2025 alone. The new framework specifically targets the “payment rail” utility of crypto rather than just speculative holding.
Impact: Local OTC desks and payment processors face a dual squeeze. They must comply with bank-grade AML/CFT standards under Resolution 520 while potentially passing on IOF costs to users. The era of frictionless, tax-free crypto remittances in Latin America’s largest economy is effectively over.
