A Texas federal court has delivered a significant blow to cryptocurrency software developers seeking legal clarity, dismissing a lawsuit that sought protection from money transmitter regulations for non-custodial blockchain software. The March 25, 2026 ruling by Chief U.S. District Judge Reed O’Connor rejected developer Michael Lewellen’s request for declaratory judgment regarding his Pharos donation software, highlighting the ongoing regulatory uncertainty facing the blockchain industry.
Money Transmitter Laws Face Judicial Scrutiny
The legal battle centered on whether developers of non-custodial software—tools that don’t control user funds—should face prosecution under federal and state money transmitter regulations. Michael Lewellen, a fellow at crypto advocacy group Coin Center, filed the lawsuit in January 2026 seeking judicial confirmation that his Pharos software wouldn’t violate these laws when facilitating charitable donations.
Judge O’Connor dismissed the case without prejudice, finding Lewellen failed to demonstrate “a credible threat of imminent prosecution.” The court specifically noted that Lewellen’s situation differed from recent prosecutions of Tornado Cash and Samourai Wallet developers, whose cases involved allegations of money laundering. Importantly, the judge emphasized that Lewellen’s core conduct would involve running a business rather than knowingly transmitting criminal funds.
Non-Custodial Software Legal Landscape
The ruling comes amid increasing legal pressure on cryptocurrency software developers. Recent years have seen several high-profile prosecutions under money transmission laws:
- Tornado Cash: Co-founder Roman Storm convicted in 2025 on charges of conspiracy to operate an unlicensed money-transmitting business
- Samourai Wallet: Founders found guilty on similar charges in 2025
- Multiple state actions: Various developers facing regulatory scrutiny across different jurisdictions
These cases have created what industry advocates describe as a “chilling effect” on software development. Developers now face uncertainty about whether creating tools that facilitate cryptocurrency transactions might expose them to criminal liability, even when they never control user funds.
Department of Justice Memo Provides Limited Comfort
In his ruling, Judge O’Connor referenced a Department of Justice memorandum stating that prosecutors would not target virtual currency exchanges, mixing services, or offline wallets for the acts of their end users. However, both Lewellen and Coin Center have criticized this guidance as insufficient protection.
“A non-binding DoJ memo is no substitute for real legal certainty,” Lewellen stated on social media platform X following the ruling. Peter Van Valkenburgh, Coin Center’s executive director, echoed this concern, noting that “the Blanche memo has not provided meaningful protection to developers, given the outcomes in the Tornado Cash and Samourai Wallet cases.”
The table below illustrates key differences between the dismissed case and previous prosecutions:
| Case | Software Type | Primary Allegations | Outcome |
|---|---|---|---|
| Pharos (Lewellen) | Charitable donation facilitator | Potential money transmission violation | Case dismissed without prejudice |
| Tornado Cash | Privacy mixing service | Money laundering conspiracy | Conviction in 2025 |
| Samourai Wallet | Privacy-focused wallet | Unlicensed money transmission | Conviction in 2025 |
Blockchain Regulatory Certainty Act Proposed
In response to this legal uncertainty, industry advocates have turned to legislative solutions. Senator Cynthia Lummis introduced the Blockchain Regulatory Certainty Act in January 2026, which aims to clarify that developers and providers of non-custodial software who don’t control user funds shouldn’t face money transmitter regulations.
The proposed legislation represents a growing recognition in Congress that existing financial regulations, designed for traditional money transmitters, may not properly address the unique characteristics of blockchain technology. However, the bill faces an uncertain path through committee hearings and potential amendments.
Legal experts note that the current patchwork of state and federal regulations creates particular challenges for developers. Money transmitter laws vary significantly across states, with some requiring licenses for any transmission of value and others providing specific exemptions for software developers.
Industry Impact and Developer Response
The court’s dismissal has immediate implications for the cryptocurrency development community. Many developers now face difficult decisions about whether to continue working on certain types of software or to limit their projects to avoid potential legal exposure.
Lewellen’s attorneys are reportedly exploring all options for moving forward, including potentially refiling the case with additional evidence of legal threat. The “without prejudice” dismissal means Lewellen could pursue the same action again with corrections or modifications to address the court’s concerns about demonstrating imminent prosecution risk.
Industry observers note that the ruling may encourage more developers to seek declaratory judgments before launching software, potentially creating a wave of similar litigation. Alternatively, some developers might choose to operate in jurisdictions with clearer regulatory frameworks or to structure their projects as open-source initiatives with no commercial elements.
Historical Context of Money Transmission Regulation
Money transmitter laws have evolved significantly since their origins in traditional financial regulation. Initially designed to prevent money laundering and protect consumers in wire transfer and check cashing businesses, these regulations have increasingly been applied to cryptocurrency services.
The Financial Crimes Enforcement Network (FinCEN) first issued guidance on virtual currencies in 2013, stating that administrators or exchangers of virtual currencies qualify as money transmitters under the Bank Secrecy Act. Subsequent guidance and enforcement actions have expanded this interpretation to various cryptocurrency services.
However, the application to software developers who create tools rather than operate services has remained controversial. Legal scholars debate whether software development constitutes “money transmission” under existing statutes, particularly when developers never take custody of user funds or charge transaction fees.
Conclusion
The Texas court’s dismissal of Michael Lewellen’s lawsuit leaves cryptocurrency software developers in continued legal limbo regarding money transmitter laws. While the ruling doesn’t establish precedent against developers, it also fails to provide the clarity many sought. The decision highlights the growing tension between innovative blockchain technology and traditional financial regulations, with developers caught between advancing technological capabilities and uncertain legal boundaries. As the industry awaits potential legislative solutions and further judicial guidance, developers must navigate this complex landscape with caution, balancing innovation against regulatory risk.
FAQs
Q1: What are money transmitter laws and why do they apply to cryptocurrency?
Money transmitter laws are regulations requiring businesses that transfer money or value to obtain licenses and implement anti-money laundering controls. Regulators apply these laws to cryptocurrency services because they often perform functions similar to traditional money transmitters, though application to pure software developers remains legally contested.
Q2: What does “non-custodial software” mean in this context?
Non-custodial software refers to tools where developers never control or hold users’ funds. Users maintain control of their private keys and assets, while the software merely facilitates transactions. This contrasts with custodial services where the service provider holds users’ assets.
Q3: Can Michael Lewellen refile his lawsuit after the dismissal?
Yes, the court dismissed the case “without prejudice,” meaning Lewellen can refile with modifications. He would need to address the court’s finding that he failed to demonstrate a credible threat of imminent prosecution, potentially by presenting new evidence of regulatory risk.
Q4: How do the Tornado Cash and Samourai Wallet cases differ from Lewellen’s situation?
Those cases involved allegations of money laundering and intentional facilitation of criminal transactions. The court distinguished Lewellen’s case because he disclaimed any knowing transmission of criminal funds and his software focused on charitable donations rather than privacy or anonymity features.
Q5: What is the Blockchain Regulatory Certainty Act and would it help developers?
Introduced by Senator Cynthia Lummis in January 2026, this proposed legislation would clarify that developers of non-custodial software who don’t control user funds aren’t subject to money transmitter laws. If passed, it would provide clearer legal protection for software developers in the blockchain space.
This article was produced with AI assistance and reviewed by our editorial team for accuracy and quality.
