Treasury Quietly Kills the Unhosted Wallet Surveillance Rule It Proposed Six Years Ago
The U.S. Treasury Department's Financial Crimes Enforcement Network formally withdrew two of the most aggressive crypto surveillance proposals it had ever floated, closing out a fight that self-custody advocates have waged since the final weeks of Trump's first term.
SIX YEARS, TWO DEAD RULES
FinCEN withdrew the December 2020 unhosted wallet NPRM and the October 2023 CVC Mixing Special Measure NPRM on October 5, with formal Federal Register publication scheduled for October 6. The agency framed the move in deregulatory terms: "FinCEN has considered the comments submitted in response to these proposals and is withdrawing them as part of the Trump Administration's deregulatory agenda and ongoing efforts to ensure digital asset regulations are fit-for-purpose."
The unhosted wallet rule's removal had already been telegraphed. The measure had appeared on Treasury's regulatory agenda as withdrawn since April 12, 2024, but Monday's filing made the decision official.
WHAT THE UNHOSTED WALLET RULE WOULD HAVE DONE
The 2020 proposal targeted wallets controlled directly by users rather than by a bank or exchange. It would have required banks and money services businesses to keep records on self-custody wallet transactions over $3,000 and report those over $10,000. Coin Center had argued for years that the rule effectively deputized every counterparty as a KYC officer: it would have required reporting on transactions with self-custody wallets above $10,000 and record-keeping on those above $3,000, turning a user's counterparty into their compliance officer.
THE MIXER RULE'S BROAD-DEFINITION PROBLEM
The second withdrawal killed a 2023 proposal to designate international crypto mixing a "primary money laundering concern" under the USA PATRIOT Act. That rule would have required financial institutions to report wallet addresses, transaction hashes, and IP addresses tied to suspected mixing, and sought to classify mixers as a national security threat. FinCEN's own notice conceded the core objection privacy advocates had raised for two years: "this withdrawal is informed by the concerns from commentors that the expansive definition of CVC mixing in the proposed rule could have a chilling effect on legitimate activity and place a large reporting burden on covered financial institutions."
Coin Center's Executive Director called the outcome a rare bright spot. Peter Van Valkenburgh described the withdrawals as positive news during a difficult month for privacy and the right to use crypto.
A WIN WITH LIMITS
The withdrawal does not erase financial surveillance of crypto, and it is not retroactive. FinCEN said it will continue monitoring mixers for illicit finance and may take further steps in the future. Existing Bank Secrecy Act and anti-money-laundering obligations on exchanges remain in force, and OFAC sanctions on specific mixer protocols are a separate matter untouched by the withdrawal.
Developers who were prosecuted under the old surveillance-first posture are still in jail. The Samurai Wallet case has not been reopened by this decision, and privacy protections for open-source developers were among the provisions stripped from the Clarity Act earlier this year. Treasury killed two rules it wrote itself. It did not undo the cases built while they were still on the books.
This story comes from the Simply Bitcoin Live show. Watch the full episode.
