Tether Engages Big Four Auditor for USDT Reserves Audit

Tether is in discussions with a Big Four accounting firm to conduct an audit of its USDT reserves, according to CEO Paolo Ardoino. While the company has not disclosed which firm it is working with, the potential audit would mark a major step in verifying its dollar-pegged stablecoin’s backing.

Reuters reported on March 21, 2025, that Ardoino views the current U.S. regulatory environment under President Donald Trump as favorable for crypto. He suggested that securing an audit from one of the leading firms—Deloitte, EY, PricewaterhouseCoopers, or KPMG—may now be feasible in the U.S.

Tether’s History with Reserve Transparency

Since launching in 2014, Tether has faced ongoing scrutiny over whether each USDT token is fully backed. The company has repeatedly stated that its reserves are maintained at a 1:1 ratio with the U.S. dollar, supported by various attestation reports. Despite controversy, Tether has grown into one of the most influential projects in the crypto space, issuing over $140 billion USDT to date.

Regulatory Landscape and Stablecoin Bill

The timing of Tether’s audit discussions aligns with ongoing efforts in the U.S. to regulate stablecoins. President Trump recently spoke at the Digital Asset Summit in New York, calling on Congress to pass stablecoin legislation. As regulatory frameworks take shape, greater transparency from stablecoin issuers could become a key requirement.

While Ardoino confirmed that talks with a Big Four firm are underway, he did not provide a timeline for when an audit might be completed or which firm has been approached. The crypto industry will be watching closely to see how Tether moves forward with its plans.