Rhodes v. U.S. Internal Revenue Service

On February 18, 2026, the U.S. District Court heard the case of Michael Rhodes against the IRS. Rhodes alleged that the IRS violated his Fourth Amendment rights by using artificial intelligence to conduct a warrantless, mass analysis of millions of taxpayers' cryptocurrency transaction data obtained from centralized exchanges. The IRS argued the data was voluntarily disclosed to third parties, thus lacking a reasonable expectation of privacy under the third-party doctrine. The case became a landmark test for applying constitutional protections to AI-driven financial surveillance and the limits of the third-party doctrine in the digital asset era.

The court ruled in favor of Rhodes, holding that the aggregation and algorithmic analysis of cryptocurrency data by the IRS created an intimate financial profile that exceeded the scope of the traditional third-party doctrine, thus requiring a warrant.

The central dispute was whether the IRS's use of AI to analyze bulk cryptocurrency transaction data without individualized warrants constituted an unconstitutional search under the Fourth Amendment, or whether such data fell under the third-party doctrine exception, eliminating reasonable privacy expectations.

The ruling significantly curtailed the IRS's use of mass data analytics on digital assets, prompting Congress to consider new legislation on AI in tax enforcement. It strengthened privacy protections for cryptocurrency users and reshaped public debate on government surveillance powers in decentralized finance.