Court's Digital Privacy Test: IRS Crypto Data Seizure
The United States Supreme Court has been asked to reconsider constitutional protections after the Internal Revenue Service obtained transaction records from more than 14,000 cryptocurrency users—including James Harper—without a warrant, under a sweeping 'John Doe' summons aimed at Coinbase data. At issue is whether the longstanding third‑party doctrine—under which individuals forfeit Fourth Amendment privacy protections by sharing data with third parties—remains valid in the digital age.
James Harper, whose trading history dates back to 2013 and who reported all taxable gains, received notification in August 2019 that the IRS had secured his wallet and transaction data without any suspicion of wrongdoing. The agency extended its data collection to approximately 14,000 other users, sparking legal challenges in lower courts and culminating in the Supreme Court petition known as Harper v. Faulkender.
Supporters of Harper argue that the third‑party doctrine originated in a pre‑digital era, designed for narrow investigations, not mass data collection. In briefs filed on 13 June, the New Civil Liberties Alliance and Supreme Court litigator Kannon Shanmugam contended that individuals do not relinquish property or privacy rights simply by using digital platforms, and that warrant requirements should be reinstated for data access. Justice Sonia Sotomayor, in previous commentary, branded the doctrine 'ill‑suited to the digital age,' a view echoed by other federal judges in the Fifth and Ninth Circuits.
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In contrast, the IRS and its supporters argue that the doctrine is well‑established and necessary for effective tax enforcement, especially amid growing use of cryptocurrencies and concerns over under‑reporting. The agency says organisations like Coinbase have an obligation to furnish information when legal summonses are issued, even absent individual suspicion.
Lower courts have upheld the doctrine, dismissing Harper's case. A district court in New Hampshire ruled that Harper lacked standing, while the First Circuit applied the third‑party doctrine in September 2024 to dismiss his Fourth Amendment claim. Now, the Supreme Court must decide whether to reverse these rulings.
Analysts suggest that a Supreme Court hearing—and eventual decision—could set a transformative legal precedent regarding digital privacy. If justices mandate search warrants under the Fourth Amendment before agencies can collect personal data—even from third parties—it would broaden protections for online financial activity and reshape the investigative landscape. Conversely, a decision upholding the status quo would affirm broad government access to digital records without judicial oversight.
The case aligns with broader judicial scrutiny over the balance between technological advancement and constitutional safeguards. As cryptocurrency adoption increases among individuals and businesses, questions loom over how traditional investigative powers should adapt. Critics fear that unchecked authority under the third‑party doctrine could pave the way for routine surveillance and erosion of civil liberties.
At the same time, law enforcement officials maintain that revised legal thresholds could complicate investigations into financial crimes and tax fraud. They argue that agencies need efficient access to data held by third-party institutions to detect under‑reported crypto gains and illicit transactions swiftly.
The Supreme Court's decision on certiorari is expected this autumn. Should the Court agree to hear the case, oral arguments may follow early next year, offering a watershed moment for Fourth Amendment jurisprudence. The outcome will be watched by constitutional scholars, digital‑rights activists, regulators and the cryptocurrency industry.
As digital transactions become integral to everyday life, the Harper v. Faulkender decision may redefine the boundary between individual privacy and government authority. The Court's ruling could determine whether the act of sharing financial data with a platform like Coinbase is equivalent to voluntary disclosure, or if it remains protected under constitutional standards requiring judicial oversight.
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