Tether Holdings has completed its first comprehensive financial audit, with KPMG U.S. issuing an unqualified opinion on the stablecoin issuer's 2025 financial statements. The milestone marks the first time a Big Four accounting firm has conducted a full audit of the company behind USDT, which currently maintains approximately $180 billion in reserves backing the world's largest stablecoin by market capitalization CoinDesk.

According to Cointelegraph, KPMG's examination covered Tether International's full 2025 financial statements and determined that the company's reserves exceeded its liabilities by $6.8 billion. This surplus represents a significant buffer for the stablecoin issuer and demonstrates that the assets backing USDT not only cover the token's full circulation but provide additional capital reserves beyond immediate redemption obligations.

The audit represents a substantial escalation in financial transparency compared to the quarterly attestations Tether previously published. While attestations provide limited assurance based on specific dates, a full financial audit examines the company's complete financial position over an entire reporting period with comprehensive testing of controls and verification procedures. The Bitcoin Magazine report notes that Tether had struggled for years to secure a Big Four accounting firm willing to conduct such an examination, making this completion particularly notable for an industry that has faced persistent questions regarding reserve adequacy.

Physical verification played a specific role in the audit process, with KPMG examining Tether's books and even conducting physical counts of gold bars held as part of the reserve portfolio, according to CoinDesk. Tether characterized the examination as the "largest inaugural financial audit" within the digital asset sector, as reported by Decrypt.

The clean opinion, also described as an "unqualified audit opinion" by The Block, indicates that KPMG found Tether's financial statements to be presented fairly in all material respects in accordance with applicable financial reporting frameworks. This classification represents the highest level of assurance available in financial auditing and requires extensive testing of the company's accounting systems, internal controls, and asset verification procedures.

The completion of the full audit arrives after years of scrutiny regarding the composition and adequacy of Tether's reserves, which have faced questions from regulators, competitors, and market participants since the stablecoin's inception. While Tether had previously published quarterly attestations conducted by other accounting firms, the KPMG audit provides the first comprehensive Big Four validation of the firm's complete financial statements, potentially establishing a new benchmark for transparency in the stablecoin sector as regulatory frameworks continue to evolve globally.