Brazil's central bank will require crypto exchanges to delay some customer transfers to foreign platforms and self-custody wallets for up to 24 hours as part of new anti-fraud rules.
The requirement takes effect Jan. 1, 2027 under Resolution BCB No. 584/2026, published Aug. 7.
The rule applies when a customer deposits the country's fiat currency reais, or crypto with an exchange and then seeks to send the funds abroad or to a wallet they control.
- Transfers exceeding the equivalent of $10,000, whether through a single transaction or several on the same day, are subject to the required hold.
- Smaller transfers may also face delays if an exchange flags them as risky.
- Exchanges can release a transfer before 24 hours if their risk review finds no signs of wrongdoing.
- Exchanges must document that decision and tell customers when a transaction has been placed on hold.
