Stablecoins in Brazilian foreign exchange: what changed, what lies ahead, and what your company needs to do now

Key Takeaways

• The Central Bank of Brazil officially integrated stablecoins into the regulated foreign exchange framework (Resolutions BCB 521 & 561).
• BCB 521 defines international payments made via foreign-currency pegged stablecoins as authentic FX transactions subject to 3.5% IOF.
• BCB 561 prohibits eFX providers from using cryptoassets for international backend settlements starting October 2026.
• The indefinite suspension of the Drex (CBDC) platform leaves private stablecoins as the leading option for fast corporate settlements.

Regulatory Context: Central Bank Interventions

Brazil ranks among the largest stablecoin markets globally. This massive transaction volume led the Central Bank (BCB) to launch consecutive resolutions to integrate digital assets into supervised exchange portals rather than keeping them in a legal vacuum.

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US$ 6B - US$ 8B /mo

Estimated monthly transaction volume in Brazilian crypto markets, with 90% represented by stablecoins.

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3.5% IOF

Tax rate applied to foreign exchange transactions processed with foreign-pegged stablecoins under BCB 521.

BCB 521: The Central exchange integration

Under BCB 521, commercial operations using stablecoins for outbound payments are classified as foreign exchange operations. This mandates full KYC/AML, formal data records, and 3.5% IOF-Exchange tax on each transaction. Furthermore, institutional operations above US$ 100,000 must connect with verified, authorized counterparties.