Treasury pulls its crypto mixing and self-hosted wallet rules, both unfinished

FinCEN, the Treasury Department's financial-crimes bureau, is withdrawing two never-finalized crypto rulemakings: a 2023 proposal that would have branded international convertible-virtual-currency mixing a "primary money laundering concern," and a 2020 proposal that would have imposed identity-verification and recordkeeping requirements on transactions involving self-hosted ("unhosted") wallets. The Block reported the move on October 5, citing a notice signed by FinCEN Deputy Director Jimmy L. Kirby posted to the Federal Register's public inspection site on Monday, with formal publication scheduled for Tuesday.

Because neither proposal was ever finalized, the withdrawals change nothing about financial institutions' current obligations — they end the rulemakings, not any live rule.

The 2023 mixing proposal, invoking Section 311 of the USA PATRIOT Act for the first time against a class of transactions rather than a specific entity, would have required covered institutions to report mixing activity down to wallet addresses, transaction hashes, and IP addresses. Its definition of "mixing" swept in pooling funds, splitting transactions, single-use wallets, and user-initiated timing delays. FinCEN said it pulled the rule after commenters warned the "expansive definition" could chill legitimate privacy use and impose a "large reporting burden." It added that it still believes illicit actors use mixers, and will keep monitoring them.

The 2020 self-hosted wallet proposal, issued by the first Trump administration weeks before it left office, would have required banks and money services businesses to verify counterparties and keep records on unhosted-wallet transactions above $3,000, and report those above $10,000 (or multiple totaling more than $10,000 in 24 hours). FinCEN said it "will not take any further action."

Key facts

• Two FinCEN rulemakings withdrawn; notice signed by Deputy Director Jimmy L. Kirby, posted Monday, publication set for Tuesday (The Block, citing the Federal Register notice).
• Neither proposal was finalized, so existing obligations are unchanged (The Block).
• FinCEN cited the July 2025 President's Working Group on Digital Asset Markets report, which said lawful users may use mixers for financial privacy (The Block).
• Prior context: Treasury removed Tornado Cash from sanctions in March 2025 after an appeals court found OFAC exceeded its authority; a March 2026 GENIUS Act report acknowledged mixers' legitimate uses and asked Congress for a "hold law" (The Block).
• Coinbase objected to the mixing rule in a January 2024 comment letter over the lack of a dollar threshold; Coin Center opposed both (The Block).

The real-world read

This is a deregulatory step, framed in privacy-rights language, that lands softly: withdrawing unfinished proposals costs nothing operationally. Note the walk-back — FinCEN first called mixing a "primary money laundering concern," now leans on its own 2025 working-group report to reverse course, while still asserting mixers aid illicit finance. That tension is unresolved: the agency is dropping the tool, not the concern. The affected parties who fought these rules — Coinbase, Coin Center — are interested advocates, and their framing (privacy, "double standard") is exactly the framing FinCEN adopted. Treasury declined to comment on the record. The underlying notices are the primary source; the reporting here is secondary.

Opinion, and whose

Coin Center called the mixing definition "extraordinarily broad, sweeping in common techniques used by ordinary cryptocurrency users," and said the wallet rule "would have created a double standard." FinCEN characterized the withdrawals as part of the Trump administration's effort to ensure digital-asset rules are "fit-for-purpose."

Sources

• The Block (Tier 2, reputable secondary), Oct. 5, 2026 — reported the withdrawals and summarized both proposals, the FinCEN rationale, and the Tornado Cash/GENIUS Act context; itself citing the Federal Register notices (the primary source), Coin Center's blog post, and Coinbase's comment letter. No marketing or sponsored material used.

This is news reporting, not financial advice.