The US Financial Crimes Enforcement Network (FinCEN) has withdrawn two proposals that sought to tighten reporting requirements on transactions involving self-custody wallets and cryptocurrency mixing services, according to a report by bloomingbit.

The withdrawal ends — for now — a rulemaking track that the Treasury bureau had pursued to extend Bank Secrecy Act-style reporting obligations to transactions touching unhosted wallets and mixing activity. Both proposals had targeted the point where digital asset flows move outside the perimeter of regulated intermediaries such as exchanges and custodians.

FinCEN has not replaced the withdrawn measures with new formal proposals, the report indicates, leaving the regulatory treatment of self-custody and mixer-related flows in a state of uncertainty for compliant US intermediaries.

What were the two proposals about?

The withdrawn rulemakings covered two adjacent areas of crypto-transaction monitoring:

• Self-custody wallet reporting — measures that would have tightened reporting on transactions involving wallets controlled directly by users rather than by a financial institution, the category regulators refer to as "unhosted" wallets.
• Mixer transaction reporting — measures that would have tightened reporting on transactions involving cryptocurrency mixing services, tools that pool and obscure the provenance of funds on public blockchains.

Both proposals had been framed within FinCEN's anti-money-laundering and countering-the-financing-of-terrorism mandate, which applies to money services businesses operating in US jurisdiction.

What does the withdrawal change?

In practical terms, the withdrawal removes two pending regulatory overhangs from US crypto intermediaries. Exchanges, custodians and other money services businesses that had anticipated additional data-collection and reporting duties tied to unhosted-wallet transfers and mixer exposure will not face those obligations in their proposed form.

The move also signals a shift in posture at FinCEN toward digital asset rulemaking. Withdrawal of a notice of proposed rulemaking is a formal step: the bureau closes the docket rather than finalizing the measure, and any future regime covering the same activity would require a new proposal and a fresh public comment period.

For compliance teams, the immediate consequence is operational rather than substantive. Existing obligations — including suspicious activity reporting, currency transaction reporting and travel-rule information sharing under the Bank Secrecy Act — remain fully in force for covered institutions. What disappears is the prospect of additional, transaction-specific reporting keyed to self-custody and mixer flows.

Why does this matter for market structure?

Self-custody wallets sit at the center of a structural tension in crypto regulation: blockchains permit peer-to-peer value transfer without an intermediary, while the Bank Secrecy Act regime is built around regulated financial institutions as reporting nodes. The withdrawn proposals represented one attempt to pull unhosted-wallet activity closer to the regulated perimeter by obliging intermediaries to document more of it.

Mixing services present a harder case. Treasury's Office of Foreign Assets Control has previously sanctioned mixer-related entities, while FinCEN's withdrawn proposal addressed the reporting side — how regulated firms must document and flag transactions that touch mixing infrastructure. With the proposal withdrawn, that reporting question reverts to existing guidance and case-by-case supervisory expectations.

What comes next?

The withdrawal does not preclude future action. FinCEN can issue a revised proposal at any time, and the same policy questions — how to monitor unhosted transfers and mixer exposure without driving activity offshore — remain unresolved in US and international standard-setting forums, including the Financial Action Task Force, whose guidance on virtual assets continues to shape national rules.

For now, US intermediaries operate under the existing Bank Secrecy Act framework, with the two pending rulemakings formally off the table. Whether FinCEN returns with narrower, revised proposals or leaves the space to supervisory guidance and enforcement will shape compliance budgets across the sector in the coming rulemaking cycle.