FinCEN Withdraws Crypto Mixing and Unhosted Wallet Proposals: What Changes and What Doesn’t

The U.S. Treasury’s Financial Crimes Enforcement Network (FinCEN) has formally abandoned two of the most contested crypto rulemakings of the past six years. In a notice announced on October 5, 2026 and published in the Federal Register on October 6, the agency withdrew its 2023 proposal targeting international crypto “mixing,” along with a separate 2020 proposal that would have imposed new recordkeeping on transactions involving self-hosted (unhosted) wallets.

Neither proposal had ever been finalized, so the withdrawals do not change any rules banks, exchanges or other financial institutions follow today. But they close the door on two policy paths that privacy advocates, wallet developers and much of the industry had fought for years.

What the mixing proposal would have done

In October 2023, FinCEN used its authority under Section 311 of the USA PATRIOT Act to issue a finding that international convertible virtual currency (CVC) mixing was “a class of transactions of primary money laundering concern.” Attached to that finding was a proposed special measure that would have required covered financial institutions to report transactions they knew, suspected or had reason to suspect involved mixing outside the United States.

According to summaries of the original proposal, those reports would have captured details such as the amount transferred, wallet addresses, transaction hashes and IP addresses, and institutions would also have had to keep identity records on the customers involved.

The sticking point for critics was the definition. FinCEN described mixing broadly as any facilitation of transactions that obscured their source, destination or amount, regardless of the protocol or service used. Reporting at the time noted that this could reach techniques such as pooling funds, splitting transactions, using single-use wallets and swapping between digital assets, practices that also show up in ordinary wallet software and routine privacy hygiene.

Why FinCEN pulled it

In its withdrawal notice, FinCEN pointed to the comments it received. Commenters argued the definition was too broad, and the agency acknowledged the rule could chill legitimate activity and place a heavy reporting burden on covered institutions. FinCEN’s own announcement also framed the move as part of the administration’s broader deregulatory agenda.

The withdrawal covers both the 2023 finding and the proposed rule attached to it, according to the Federal Register filing and coverage by The Block and Cointelegraph.

The unhosted wallet proposal is gone too

The same day, FinCEN also withdrew a December 2020 proposal on CVC transactions involving unhosted wallets. That earlier rule would have required banks and money services businesses to verify customer identities and keep records for certain transactions with self-hosted wallets, wallets where the user, not a custodian, controls the private keys.

The 2020 proposal was never finalized. Its formal withdrawal now removes it from the regulatory pipeline entirely.

For readers who keep coins in their own custody, this is relevant context. Our guides on setting up a 2-of-3 Bitcoin multisig and pairing a hardware wallet with MetaMask describe exactly the kind of self-hosted setups the 2020 rule would have touched when funds moved to or from a regulated institution.

What does not change

It is important not to over-read this news. Because neither proposal became a final rule, the withdrawals leave existing obligations where they were:

• Bank Secrecy Act duties remain. Exchanges and other money services businesses still have know-your-customer, suspicious activity reporting and recordkeeping requirements under existing law.
• Sanctions still apply. Withdrawing a Section 311 proposal does not lift any sanctions designations. Treasury has continued sanctions actions in the crypto space, including coordinated action announced October 1 against a network it says was used for sanctions evasion.
• Platforms can still set their own policies. Exchanges may continue to flag, delay or decline deposits linked to mixing services as part of their own risk controls.

A busy month for U.S. crypto policy

The FinCEN withdrawals land in a crowded stretch for Washington. The CFTC on October 5 released an advance notice of proposed rulemaking covering leveraged and margined retail crypto transactions, which we covered in our look at the CFTC’s proposed Regulation CTX and CAM. The same week, Treasury and the IRS issued a revenue procedure updating the safe harbor for staking by crypto exchange-traded product trusts, according to a Lowenstein Sandler client brief.

Taken together, the pattern is a shift away from sweeping, definition-heavy proposals and toward narrower, product-specific frameworks. Whether that approach holds up will depend on future administrations and on Congress, which has yet to pass comprehensive market structure legislation.

The bottom line

FinCEN’s decision ends two long-stalled rulemakings that would have expanded reporting on privacy-enhancing transactions and self-custody wallet transfers. For everyday users, nothing changes overnight: the rules were never in force. For wallet developers and privacy-focused projects, it removes a regulatory overhang that had lingered since 2020 and 2023. Existing anti-money-laundering and sanctions rules, however, remain fully in effect.

This article is for informational purposes only and does not constitute financial advice.