Brazil will require crypto service providers to delay some outbound transfers by up to 24 hours from Jan. 1, 2027 under Resolution BCB No. 584/2026, published Aug. 7. The hold applies when a customer deposits fiat currency or cryptocurrency and then tries to send more than $10,000, in a single transaction or through the combined total of transfers in the same day, to a self-custody wallet or a foreign crypto platform. Smaller transfers can also be paused if a firm's internal systems flag fraud risk. Providers must tell customers why a transfer was held and for how long, and after the review they must either complete or reject it. Brazil's central bank said the rule is a precautionary anti-fraud measure because cryptocurrencies, including stablecoins, have been used to move money obtained through financial fraud before victims or institutions can recover it. The 24-hour hold is a ceiling rather than a fixed wait, and firms may release funds earlier if an internal review finds nothing suspicious and the decision is documented. The resolution amends a 2021 anti-money laundering framework for payment providers, adds daily record-keeping on crypto fraud incidents and controls, and allows escalating penalties for non-compliance. The move adds to Brazil's broader crypto rulebook, which already requires provider authorization and applies foreign exchange rules to some fiat-pegged stablecoin and cross-border activity. Brazil ranked fifth in Chainalysis' 2025 Global Crypto Adoption Index, with about $318.8 billion in crypto received between July 2024 and June 2025.