Brazil Orders Coaf Reports on Self-Custody Transfers Above $10,000

Brazil's central bank has added self-custody wallets to the movements its supervised institutions have to report. Resolution BCB No. 588, published on 23 September, amends Circular No. 3,978, the country's anti-money-laundering rulebook, so that a transfer of $10,000 or more to or from a wallet the customer controls goes to Coaf, Brazil's financial intelligence unit, by the next business day. It takes effect on 1 October. Nothing in the rule bans self-custody, caps a transfer or asks the wallet holder to file anything. What changes is that the regulated party on the other side of the transfer now writes a report.

A trigger, not a ceiling

The threshold reports transfers; it does not stop them. Blockonomi, filing on Friday, attributes that reading to B3, Brazil's exchange operator, and adds that the resolution creates no new tax or fee and blocks no qualifying transfer. The duty falls on the intermediary. Somebody withdrawing $12,000 into a wallet they control does nothing differently and files nothing, while the platform they withdrew from reports the movement. It runs both ways, so an incoming deposit from a self-hosted wallet counts the same as a withdrawal to one. Exame, the Brazilian business outlet, puts the equivalent at about R$51,800, a conversion of its own rather than a number written into the text.

The central bank's stated reason

Self-custody "can reduce the availability of information for monitoring and risk assessment purposes," the central bank said.

That sentence appears word for word in Bitcoin.com News on Thursday and in TFTC on Friday, and crypto.news carries it with one small grammatical difference. Exame gives a second line of reasoning, in translation from Portuguese: the changes aim to "strengthen the security and integrity of the virtual asset market, while providing greater predictability for sector participants." One account carries that one, and it arrives through a translation. The resolution itself was not fetched for this report, so every quotation here is an outlet's rendering of it.

Two dates for the companion rule

Resolution BCB No. 589 came out the same day and does a different job. It bars authorized Brazilian institutions from transacting with crypto service providers that hold no Brazilian authorization, and it requires supervisory reporting on customer balances, custody positions, staking totals and verifiable proof of reserves. Exame notes an exception for counterparties the central bank expressly permits. The supervisory data starts flowing on 1 January 2027, on two accounts.

When 589's counterparty restriction begins is where the record splits. Blockonomi and crypto.news both date it to 6 November 2026. Bitcoin.com News says both resolutions take effect on 1 October, and TFTC says the same; Bitcoin.com adds that 1 October is also the deadline for virtual-asset service providers to hold central bank authorization, which would make the two dates one event. Neither side acknowledges the other. They do not reconcile, and the text that would settle it was not read.

Five applications

The authorization regime has already thinned the field. Five providers have applied to the central bank, a figure Bitcoin.com News and TFTC both give. TFTC alone puts the number operating in Brazil at around 120 and says one application has been refused, and that count sits in a single source. Departures are on the record either way, including Lemon shutting its Brazil business and closing 15,000 accounts this year. Hong Kong reached for a similar shape when it cleared regulated stablecoins to trade on licensed venues and nowhere else.

One more instrument is often folded into this one and should not be. Resolution BCB No. 584, effective 1 January 2027, lets a provider hold certain transfers for up to 24 hours while it runs fraud checks, and it aggregates same-day transactions when applying its own threshold. Resolution 588 carries no equivalent aggregation language, a distinction crypto.news draws explicitly, so its trigger is the single transfer. The first filings under 588 land in the week of 1 October. What they show, and whether Coaf publishes anything drawn from them, is not something the resolution addresses.