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Treasury’s mixer language points to a new U.S. line on crypto privacy
A new Treasury report says lawful users may use mixers for financial privacy on public blockchains. The language leaves Treasury’s money-laundering case intact, while opening room for privacy tools that can operate inside regulated U.S. crypto markets.
In a report to Congress this week, the U.S. Treasury said lawful users of digital assets may use mixers to protect financial privacy on public blockchains.
Treasury gave ordinary examples. It said users may want to shield personal wealth, business payments, charitable donations, and consumer spending from full public view.
The same report also kept the department’s enforcement case in place. Treasury said criminals use mixing, bridging, and swapping to break audit trails and highlighted North Korean activity.
It added that bridges have received about $1.6 billion in deposits from mixing services since May 2020, with more than $900 million reaching one bridge that later drew scrutiny over failures tied to DPRK laundering.
Treasury’s wording still marks a significant change in official language. For several years, the department described mixers mainly through the lens of sanctions risk, darknet activity, ransomware payments, and state-backed theft.
The report puts lawful privacy use into the record alongside those risks. That wording points to a narrower policy distinction between illicit concealment and supervised privacy services on public chains.
President Donald Trump made U.S. leadership in digital financial technology a formal goal by executive order at the start of his term.
The July 2025 digital-assets report then told Treasury to revisit its 2023 mixer proposal in a way that still blocks illicit finance while protecting privacy and lowering regulatory burden.
Those steps, however, do not suggest a broad pardon for mixers, but Washington wants more crypto activity, more dollar-linked settlements, and more institutional capital inside domestic channels.
Once that becomes official policy, privacy starts to look less like an edge case and more like missing infrastructure for public-chain finance.
Treasury’s own numbers show why privacy is back in the policy record
Treasury’s report said successful monthly transactions on public blockchains reached 3.8 billion in early 2025, up 96% year over year.
That scale changes the policy question. A network carrying billions of transactions each month does not serve only traders and protocol users.
It starts to carry payroll-adjacent activity, treasury movements, commercial settlement, donations, and consumer payments. At that point, full public visibility becomes a business risk for many lawful users, not just a compliance benefit for investigators.
Treasury paired that growth figure with a warning, not a retreat. The department also released a new money-laundering risk assessment, which says digital assets are increasingly used alongside social media, encrypted messaging, and AI-enabled fraud.
Another review from the FATF this month also said criminals’ misuse of stablecoins through peer-to-peer transfers and unhosted wallets is a growing concern.
That mix of signals points to a more selective U.S. approach. Treasury’s report said custodial mixers, if they register and comply as money services businesses, can still generate off-chain information useful to regulators and law enforcement.
In practice, that points toward privacy tools that preserve records, screening, and suspicious activity reporting, while keeping pressure on tools that operate outside those controls.
A hedge fund, issuer, or corporate treasury may want confidentiality around counterparties, payment amounts, and wallet relationships.
Treasury is signaling that the government can accept some forms of confidentiality if service providers remain legible to the state. The department is drawing lines around provider type, recordkeeping, and supervision rather than treating every privacy use case as identical.
SignalVerified figureImplicationPublic-chain activity3.8 billion successful monthly transactions in early 2025, up 96% year over year, Treasury said in its March 2026 reportCommercial users face greater disclosure risk as more activity moves onchain.Mixer-linked bridge flowsAbout $1.6 billion since May 2020, with more than $900 million reaching one bridge, according to the same reportTreasury still has a clear enforcement basis for action against illicit routing.Institutional privacy use$1.22 trillion in institutional stablecoin transfers over two years, but only 0.013% touched privacy protocols, according to a February 2026 Cambridge analysisThere is a wide gap between institutional scale and actual privacy-tool use.ETF channelAbout $1.7 billion moved into spot bitcoin ETFs over a late-February to early-March window in market dataLarge pools of U.S. capital already access bitcoin through regulated products.
The resulting policy picture is more skeptical than the celebratory reading circulating in some circles. Treasury has not changed its view that mixers can serve as laundering infrastructure.
The department has acknowledged that lawful users on transparent blockchains may also want privacy, and that some providers may be able to offer it inside a regulated perimeter.
Institutional capital helps explain why the language changed now
The White House’s crypto agenda helps explain the timing. The January 2025 executive order made digital-asset leadership a U.S. goal.
The March 2025 Bitcoin reserve fact sheet added a sovereign signal around Bitcoin. The July 2025 digital-assets report told agencies to reduce unnecessary drag while keeping anti-money-laundering controls in place.
Treasury’s mixer language fits that sequence.
Institutional flows add the market side. The regulated bitcoin channel is already large.
Market data showed about $1.7 billion moving into spot bitcoin ETFs over a late-February to early-March window, even after sharp outflow days.
That does not prove institutions want mixer access, but it does show that large investors already use U.S.-approved crypto vehicles at scale, and that the policy debate has moved from whether institutions will enter the market to how the surrounding infrastructure will work once they do.
Privacy has become part of that infrastructure discussion. Coinbase Institutional said in its 2026 market outlook that rising institutional adoption is increasing demand for privacy technologies such as zero-knowledge proofs and fully homomorphic encryption.
Cambridge’s February 2026 analysis pushed the point further, arguing that sanctions pushed away legitimate users faster than criminals and said the mixer market has shifted toward more compliant privacy protocols.
The Cambridge figures are particularly useful because they show how early this shift still is. Institutions moved $1.22 trillion in stablecoin transactions over two years, yet only 0.013% of these transactions touched privacy protocols, according to the same analysis.
That tiny share can support two readings at once. One reading says institutional demand for privacy remains marginal in practice.
The other says a large privacy gap remains between the amount of value institutions already move onchain and the tools they are currently willing or able to use.
Bitcoin sits at the center of that gap. The asset now sits inside ETF wrappers, reserve policy, and large-scale portfolio allocation.
Its base layer also remains highly transparent. If the United States wants tokenized dollars, tokenized deposits, and public-chain settlement to develop under domestic rules, commercial users will keep asking for ways to hide counterparties and payment details without stepping outside compliance systems.
Thus, Treasury’s report suggests Washington has started to accept that demand as a feature of market structure, not just a risk category.
The next phase will decide who gets privacy, and under what conditions
The next policy phase will likely turn on provider design. The White House already asked Treasury to revisit the older mixer policy in a way that protects privacy while reducing the burden.
Treasury has now added lawful privacy use to the official record. The unresolved question is whether agencies will convert that language into a broader framework for regulated public-chain finance or limit it to a narrow set of supervised intermediaries.
What happens from here?
ScenarioWhat changesNumeric markers already on the tableWhat to watchBase caseTreasury and other agencies make room for privacy tools that keep records, screening, and reporting, while pressure stays high on open-ended obfuscation.Public-chain traffic is already at 3.8 billion monthly transactions and up 96% year over year in Treasury’s March 2026 report.Whether licensed providers start offering privacy features for onchain payments, settlement, and treasury management.Bull caseCompliant privacy tools become standard for tokenized dollars and large public-chain transfers, narrowing the gap between institutional scale and privacy use.Cambridge’s February 2026 analysis said only 0.013% of $1.22 trillion in institutional stablecoin transfers touched privacy protocols over two years.Whether that share starts to move materially higher as regulated firms test zero-knowledge and similar tools.Bear caseWashington keeps the new language but uses it mainly to bless permissioned systems, while FATF pressure and enforcement actions further isolate non-custodial privacy tools.Treasury’s March 2026 assessment and FATF’s 2026 review both point to tighter scrutiny of illicit digital-asset use.Whether agencies pair privacy-friendly language with fresh limits on unhosted wallets, peer-to-peer stablecoin transfers, or developer exposure.
For Bitcoin, the immediate implication is indirect. Treasury has made it easier for policymakers and regulated firms to argue that lawful users on public chains may need confidentiality tools around payments and settlement.
That argument helps institutions, issuers, and market infrastructure providers far more than it helps every open-source privacy project.
The sharper question is who gets to provide that confidentiality. If banks, custodians, and other licensed firms control most of it, the policy shift will support institutional crypto growth while leaving permissionless privacy projects under pressure.
A wider circle of approved providers would point to a broader change in U.S. policy. A narrow circle would still mark a meaningful change, though one aimed at regulated channels first.
Treasury’s March 2026 report, therefore, lands at a useful moment for the market. The White House wants more crypto activity onshore. Institutional money is already moving through regulated bitcoin products.
Public-chain activity has reached 3.8 billion successful monthly transactions. Against that backdrop, Treasury has put lawful financial privacy back into the federal record.
The next round of guidance will show whether that privacy belongs only to supervised intermediaries or whether it becomes part of the normal public-chain market structure in the United States.
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