Supreme Court Declines to Take Up Coinbase User Data Privacy Case

The U.S. Supreme Court’s refusal to hear a privacy case challenging the IRS’s access to Coinbase customer data marks a significant development in the ongoing debate surrounding government access to private information held by third parties. The case, Harper v. IRS, stemmed from a 2016 IRS request for data on thousands of Coinbase users, prompting a lawsuit by James Harper who argued the request violated his Fourth Amendment rights against unreasonable searches and seizures.

Harper’s claim centered on the IRS’s use of “John Doe summonses,” which compel financial institutions to provide data on individuals suspected of tax evasion. He contended that the IRS’s actions exceeded its authority, circumventing the need for judicial process and infringing upon his privacy rights, even in the context of a pre-existing agreement with Coinbase protecting his data.

Lower courts consistently sided with the IRS, citing the broad authority granted to the agency by Congress to collect tax information. These courts emphasized that the IRS’s actions fell within this established latitude and that existing safeguards adequately protect taxpayer rights. The courts also referenced the “third-party doctrine,” a legal principle established in 1976, which holds that individuals have no reasonable expectation of privacy for information voluntarily shared with a third party.

Despite the lower court rulings, Harper appealed to the Supreme Court, garnering support from various organizations including Coinbase and X, who filed amicus briefs. These briefs urged the Supreme Court to review the third-party doctrine’s applicability in the digital age, arguing it needs reconsideration given the evolving nature of data storage and sharing. The Supreme Court’s denial of certiorari, however, leaves the lower court decisions standing and solidifies the IRS’s authority to obtain taxpayer data from third parties under the existing legal framework. The lack of explanation accompanying the denial leaves open questions about the Court’s reasoning and the future of privacy rights in the face of similar government data requests. This decision potentially sets a precedent impacting future legal challenges related to government access to data held by third-party financial institutions.