
Resolution 584 requires exchanges to hold crypto transfers to self-custody and foreign platforms for up to 24 hours. The rule takes effect Jan. 1, 2027.
Brazil's central bank is requiring crypto firms to hold certain transfers to self-custody wallets and overseas platforms for up to 24 hours, a rule aimed at slowing the movement of fraud proceeds through stablecoins.
Resolution BCB No. 584, published Aug. 7, applies when a single transaction, or a customer's combined transfers during one day, exceeds $10,000. Smaller transfers can be held as well, when a provider's risk controls flag them for additional review.
The rule targets a specific flow: customers fund accounts with Brazilian reais or crypto, then attempt to move the assets to self-custody or an overseas virtual asset service provider. It covers Bitcoin and fiat-backed stablecoins.
The Central Bank of Brazil said the measure responds partly to the growing use of virtual assets, particularly stablecoins, to quickly move money obtained through financial fraud.
The 24-hour period is a precautionary anti-fraud measure, not an asset freeze. Providers must assess the customer's risk profile, the transaction, the recipient and the jurisdiction involved before releasing or rejecting the transfer.
Customers must be told when a transaction is being held and informed the restriction is temporary. Providers may release funds before the period expires when a documented risk review determines the transaction can proceed.
Two paths lead into the holding window. The first is mechanical: any transfer over $10,000, whether a single transaction or a day's combined activity. The second is discretionary: any transfer, regardless of size, that a provider's risk controls flag for additional scrutiny. The discretionary path lets providers apply the hold to smaller transfers when the customer's profile or the recipient's jurisdiction raises questions.
Self-custody transfers are singled out because funds that move to a self-custody wallet leave the oversight of any regulated intermediary, becoming harder to trace if moved onward. The holding period gives the compliance team a window to review the transaction first.
Companies that fail to comply face a specific escalation: the central bank could impose longer holding periods, or extend the procedure to smaller transactions.
Brazil's virtual asset rules have been expanding for a year. A Feb. 2 framework brought virtual asset providers under central bank supervision, covering authorization, governance, security, anti-money laundering controls and certain foreign exchange activities. Brazil also began treating several stablecoin and international virtual asset transactions as foreign exchange operations, pulling them into the same compliance machinery as bank transfers.
Further restrictions announced in May limited the use of crypto and stablecoins to settle certain regulated cross-border payments between payment providers and overseas counterparties. The 24-hour hold extends that logic to the customer side of the market. Transfers to self-custody or a foreign exchange now carry a waiting period.
The country ranks among the world's largest crypto markets, fifth in Chainalysis' 2025 Global Crypto Adoption Index, behind India, the United States, Pakistan and Vietnam. Chainalysis estimated Brazil received $318.8 billion in cryptocurrency between July 2024 and June 2025, almost one-third of Latin America's crypto activity.
Stablecoin purchases accounted for more than half of Brazilian real-denominated crypto purchases during that period.
For a provider, the operational change is a review step inside the withdrawal flow. Funds heading to self-custody or a foreign exchange enter a hold while the compliance team reviews the transaction. The review runs before the transfer is released.
The holding period applies from Jan. 1, 2027. Exchanges have roughly five months from the Aug. 7 publication to adapt their fraud-monitoring and transaction-review systems.
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