US Department of Justice Targets $84.2 Million in Seizure Action Tied to Tether Payment Processor Capstone Ltd

The United States Department of Justice has initiated aggressive legal action to seize $84.2 million in funds linked to a Montana-based payment processing firm. According to a civil forfeiture complaint filed in the Eastern District of California, the targeted funds moved through institutional accounts that actively processed payments for Tether, the issuer of the world’s largest stablecoin, USDT.

The high-stakes legal proceeding sheds light on the complex, often opaque pipelines connecting traditional banking infrastructure with the fast-paced and heavily regulated cryptocurrency ecosystem. As regulatory scrutiny tightens around offshore entities and unregulated intermediaries operating within the United States financial system, this case underscores the systemic vulnerabilities exposed when compliance protocols fail.

The Civil Forfeiture Complaint and Core Allegations

Filed on July 15 before U.S. District Judge Dale A. Drozd, the civil forfeiture complaint specifically targets Capstone Ltd., a registered Montana corporation that functioned as a third-party payment processor. Federal prosecutors allege that Capstone operated unlawfully as an unlicensed money transmitter across at least six U.S. states.

Under federal law, money services businesses are legally obligated to register with the Financial Crimes Enforcement Network (FinCEN) and implement rigorous Anti-Money Laundering (AML) and Know Your Customer (KYC) frameworks. These regulations are designed to monitor the flow of third-party funds and prevent illicit financial activities, including money laundering and sanctions evasion.

According to court documents, Capstone allegedly masked its true business operations by presenting itself to traditional financial institutions as a routine information technology (IT) services company. By obscuring its role as a high-volume payment processor, Capstone allegedly bypassed institutional safeguards that would have otherwise triggered enhanced due diligence or regulatory reporting.

The forfeiture action targets capital distributed across multiple traditional banking institutions and digital asset repositories. The lion’s share of the seized assets—totaling approximately $79.11 million—was pulled directly from a Wells Fargo Securities account held in Capstone’s name on September 14. Additional funds included $2.06 million held at JPMorgan Chase, $1.86 million in a separate Wells Fargo account, and just over $1.1 million split across two digital wallets containing USDT.

The Role of EQIBank and the Threat of Liquidation

At the center of the government’s investigation is EQIBank, a digital bank licensed in the Commonwealth of Dominica. Federal prosecutors assert that EQIBank directed how Capstone moved and managed funds through the U.S. financial system, acting as a pivotal administrative power behind the payment processor.

The implications of the DOJ’s forfeiture action for EQIBank are severe. Representatives for the Dominica-licensed bank have formally warned the court that the loss of these funds—representing roughly 80% of the institution’s total reserves—could deal a fatal blow to the bank, potentially forcing it into immediate liquidation. The looming threat of insolvency highlights the dangerous reliance that smaller offshore digital financial institutions place on correspondent banking relationships within the United States.

When U.S. regulators or law enforcement agencies flag accounts for suspected illicit activities, they frequently employ civil asset forfeiture to freeze and seize capital before formal criminal charges are proven beyond a reasonable doubt. Unlike criminal forfeiture, which requires the conviction of a specific defendant, civil forfeiture targets the property itself, operating under the legal fiction that the asset was instrumental in facilitating a crime.

Corporate Responses and Tether’s Exposure

Federal law enforcement agencies have moved aggressively on the ground as well. The Federal Bureau of Investigation (FBI) executed a search warrant at a Sacramento residence associated with Capstone’s primary owners, Kotaro Shimogori and Mary Jeanne Thompson, both of whom are named extensively in the complaint.

Legal representation for Capstone has pushed back against the government’s characterization of the firm’s business practices. In statements reported by the Financial Times, counsel for the company asserted that Capstone "denies any wrongdoing" and expressed an intent to work toward resolving the matter swiftly through legal channels. Furthermore, both Capstone and EQIBank have filed formal "innocent-owner" defenses, invoking provisions under Supplemental Rule G of the Federal Rules of Civil Procedure, which grants claimants a strict 21-day window to contest a government forfeiture action after a formal claim is entered.

Meanwhile, Tether Holdings Limited has moved quickly to distance itself from the unfolding legal controversy. In a formal statement provided to Reuters, Tether confirmed that EQIBank historically handled select USDT purchase and redemption transfer operations. However, the stablecoin issuer categorically denied any awareness of or complicity in the alleged misconduct perpetrated by Capstone.

Tether sought to reassure markets by downplaying the financial materiality of the seized funds to its broader corporate balance sheet. According to a company spokesperson, Tether’s total financial exposure to the seized assets accounts for less than 0.034% of the group’s total consolidated reserves. This nominal exposure stands in stark contrast to the company’s financial health reports; at the close of the second quarter, Tether reported total assets of $187.75 billion, bolstered by robust profitability and expanding circulating supply for USDT.

Broader Context: A History of Regulatory Scrutiny

This legal confrontation is not an isolated incident for Tether or its affiliated entities, which have spent years navigating an increasingly hostile regulatory landscape in the United States and other major jurisdictions.

In February 2021, Tether and its sister cryptocurrency exchange, Bitfinex, reached a landmark settlement with the New York Attorney General’s Office following a comprehensive multi-year investigation. The probe revealed that the companies had misrepresented the backing of their stablecoin reserves during various periods, falsely claiming that every circulating USDT token was perpetually backed one-to-one by traditional U.S. dollar cash equivalents held in reserve.

To resolve the New York investigation without admitting or denying the state’s most severe findings, Tether and Bitfinex agreed to pay an $18.5 million civil penalty and accepted a permanent injunction prohibiting them from conducting further trading activity with New York residents or corporate entities. Since that settlement, Tether has aggressively overhauled its corporate transparency reporting, publishing regular attestation reports conducted by independent accounting firms to verify the composition of its multi-billion-dollar reserve portfolio, which heavily favors U.S. Treasury bills.

However, the current case involving Capstone and EQIBank shifts the focus away from reserve composition and directly onto the mechanics of fiat on-ramps and off-ramps. The ability of stablecoin issuers to maintain smooth liquidity relies entirely on a sprawling network of international banking partners, payment processors, and liquidity providers. When any link in this payment chain is compromised by regulatory violations or enforcement actions, the ripple effects can destabilize smaller banking partners and draw intense scrutiny from federal investigators.

Timeline and Chronology of Events

• February 2021: Tether and Bitfinex settle with the New York Attorney General for $18.5 million, agreeing to cease operations in New York after probes into reserve backing.
• July 15, 2026: The U.S. Department of Justice files a civil forfeiture complaint in the Eastern District of California before Judge Dale A. Drozd targeting $84.2 million linked to Capstone Ltd.
• September 14, 2026: Federal authorities and financial institutions identify and move to secure $79.11 million pulled from a Wells Fargo Securities account held in Capstone’s name.
• Subsequent Days: The FBI executes a search warrant at a Sacramento residence tied to Capstone owners Kotaro Shimogori and Mary Jeanne Thompson. EQIBank warns of potential liquidation, while Tether issues statements minimizing its financial exposure. Capstone and EQIBank file innocent-owner defenses under Supplemental Rule G.

Implications for the Cryptocurrency and Banking Sectors

The DOJ’s civil forfeiture action against Capstone Ltd. carries profound implications for both the digital asset industry and traditional financial institutions that service crypto-adjacent firms.

First, the case demonstrates federal law enforcement’s growing sophistication in mapping out the shadow financial plumbing that bridges traditional commercial banks and crypto enterprises. By utilizing civil asset forfeiture, the government can immobilize substantial pools of capital suspected of facilitating unlicensed money transmission before a criminal trial even commences. For smaller digital banks like EQIBank, which rely heavily on high-volume processing accounts to sustain their business models, the sudden loss of liquidity serves as a stark reminder of regulatory concentration risk.

Second, the incident highlights the continuous compliance pressures facing stablecoin issuers. While Tether has successfully insulated its primary balance sheet from direct financial ruin in this specific instance, the case reinforces the necessity for rigorous vetting of third-party intermediaries and payment processors. As global regulators move closer to enacting comprehensive frameworks for stablecoins and digital asset service providers—such as the European Union’s Markets in Crypto-Assets (MiCA) regulation and anticipated federal frameworks in the United States—the tolerance for unlicensed, opaque intermediaries is rapidly evaporating.

As the legal proceedings in the Eastern District of California progress, the outcome of Capstone’s innocent-owner defense and EQIBank’s fight for survival will likely set a crucial precedent for how U.S. authorities police the intersection of traditional banking and decentralized digital finance.