Brazil’s Central Bank will close a specific stablecoin shortcut in cross-border payments on 1 October 2026. Resolution BCB 561, published 30 April 2026 and amending the eFX framework tied to Resolution 277, requires that the settlement leg between a regulated foreign-exchange (eFX) provider and its foreign counterparty run through a licensed FX transaction or a qualifying non-resident account in reais — not through virtual assets such as USDT or USDC. Individual international transfers that use virtual assets remain permitted under Brazil’s existing rules. The measure is a rail restriction, not a blanket ban on stablecoins.
CryptoSlate and Brazilian counsel including L. O. Baptista Advogados have framed the change as clarifying an ambiguity left after the 2022 virtual-assets law gave the Central Bank authority over which crypto operations count as foreign-exchange activity. Specific settlement rules never fully followed — until 561.
What exactly is barred — and what is not
eFX providers can still net and consolidate many small international payments — streaming subscriptions, gaming top-ups, e-commerce remittances — before settling once with an overseas counterparty. That aggregation model stays intact. What disappears is settling that consolidated provider-to-counterparty leg in stablecoins or other virtual assets.
Allowed paths after 1 October include settlement via a licensed FX operation or via a non-resident BRL account held in Brazil. Baptista’s English-language note states the prohibition explicitly: financial settlement of eFX operations abroad must occur exclusively through traditional foreign exchange or a non-resident reais account. CryptoSlate’s activity table matches that reading: bulk netting allowed; VA settlement of the foreign counterparty leg barred; individual VA transfers still allowed.
Oscar Guillermo Farah Osorio, founding partner at Zanella & Farah, told CryptoSlate the resolution closes a genuine visibility gap. Providers had used stablecoin settlement of aggregated flows in ways the formal exchange system could not fully see. Removing that combination — bulk aggregation plus stablecoin settlement — is where Farah said much of the cost advantage lived. Firms may now absorb Brazil’s financial transaction tax on conventional FX conversions and correspondent-bank or SWIFT fees that stablecoin rails previously sidestepped, costs he expects will eventually reach Brazilian consumers and businesses.
A trillion-real stablecoin footprint
The stakes are large in declared volume even if the precise eFX settlement slice is not publicly isolated. Brazil’s tax authority recorded R$1.13 trillion in declared stablecoin transactions between August 2019 and December 2025 — roughly 72% of all declared crypto activity in that window, CryptoSlate reported. Stablecoins accounted for close to 80% of declared volume in 2025 alone, and USDT made up nearly 89% of that stablecoin total. Those figures describe the broader market Resolution 561 brushes against; they do not themselves measure how much of the restricted eFX leg ran on stablecoins.
A July Bank of Italy study of $200 USDC transfers across ten corridors, including Brazil, found total costs from about 0.3% to nearly 9%, with no consistent advantage over conventional channels. Blockchain transfer fees were only a marginal share; currency conversion and local payment infrastructure drove most expense. The Financial Stability Board reached a similar near-term conclusion in July: stablecoin value often sits inside hybrid arrangements built around bank money, not as standalone global rails. That research did not evaluate 561 specifically, but it helps explain why regulators may prefer settlement inside licensed FX channels they already supervise.
Unicad deadlines and fintech compliance
Resolution 561 also tightens who may offer eFX. Baptista summarises that institutions authorised by the BCB must include the eFX modality in Unicad by 30 October 2026. Unauthorised eFX providers that want to continue must apply to the Central Bank by 31 May 2027 to operate as a payment institution — as an electronic-money issuer, postpaid-instrument issuer or acquirer — and face operating restrictions until authorisation is granted. The resolution expands eFX uses related to financial and capital-market investments up to a US$10,000 limit, and it hardens KYC, monitoring and fund-flow traceability requirements.
Farah raised an open policy question: Brazil’s virtual-assets law lists free enterprise, competition and operational efficiency among its goals, yet individual international stablecoin transfers stay allowed while the aggregated eFX version does not — even though regulated providers could, in principle, supply comparable transaction data either way. He reads the rule mainly as keeping flows inside channels the Central Bank can already see and control, rather than as a conceptual reclassification of stablecoins themselves.
What markets will watch after 1 October
The bull case is clearer boundaries: larger firms obtain permissions, partner with licensed institutions and keep stablecoins for treasury, internal liquidity and corridors outside the closed eFX leg. The bear case is that licensed FX and correspondent costs erase enough of the savings that Brazil-linked stablecoin payment products shrink, especially for smaller fintechs that cannot justify dual architecture. Brokers interviewed by CryptoSlate already describe an architectural response — in-house wallets and treasury where permitted, licensed intermediaries where a jurisdiction demands them — rather than wholesale avoidance.
On 1 October, Brazil will not outlaw holding or sending stablecoins. It will force one high-volume cross-border settlement shortcut back onto rails the Central Bank already knows how to supervise. For a market where declared stablecoin activity has measured in the trillion-real range, that is still a material redesign of how cheap Brazilian international payments can remain.
This article draws on CryptoSlate’s 19 September 2026 analysis and L. O. Baptista Advogados’ English summary of Resolution 561, as of 19 September 2026.