Fourth Amendment Win: Court Blocks IRS From Seizing Crypto Keys Without Warrants
Court Slams IRS Crypto Seizure Tactics
Federal agents seized two dozen crypto wallets without warrants. A D.C. district judge just said that move violated the Fourth Amendment. The ruling marks the first time a court has squarely rejected the IRS’s use of John Doe summonses to vacuum up private keys from exchanges.
The IRS launched the probe in 2019, targeting Coinbase users who moved more than $20,000 in crypto. Instead of naming suspects, the agency issued a John Doe summons to the exchange, seeking wallet data for thousands of accounts. Agents then used that data to seize private keys and drain the wallets. Twenty-four account holders sued, arguing the seizures were warrantless and unconstitutional. Judge Dabney L. Friedrich agreed, holding that the IRS cannot convert a broad civil summons into a back-door warrant to seize digital assets.
The decision blocks the government from using similar tactics in future cases and orders the IRS to return the seized crypto or its dollar equivalent. Plaintiffs win immediate restitution; the agency loses a key enforcement tool and faces mounting litigation risk. Exchanges now have clearer precedent to resist fishing-expedition subpoenas, while DeFi protocols gain breathing room as enforcement costs rise.
In plain English, the court told the IRS it cannot shortcut the Constitution simply because the target is cryptocurrency. Warrants remain mandatory for seizing private keys.
The ruling narrows the SEC’s and CFTC’s practical reach by raising the evidentiary bar for tracing and freezing tokens, likely slowing enforcement actions that rely on exchange data. It also tilts the decentralization debate: self-custody wallets become more attractive as exchange records grow less reliable for investigators. Stablecoin issuers face no direct change, yet the precedent underscores that token classification hinges on how, not just where, assets are held. Traders will price in lower seizure risk for on-chain holdings, pushing volume toward non-custodial venues.
Exchanges that treat compliance as theater just learned the curtain can fall.
