Bank of Thailand expands oversight of stablecoins, cash and foreign exchange as authorities target billions in illicit financial flows linked to scam networks.
MARKET INSIDER – Thailand is intensifying its scrutiny of stablecoin transactions, signaling that digital assets have become a central battleground in the global fight against financial crime. The country’s latest anti-money laundering campaign places Tether’s USDT alongside cash, foreign exchange and gold trading under enhanced surveillance, reflecting growing concern that instant cross-border digital payments are increasingly being exploited by organized criminal networks.
The move underscores a broader shift in financial regulation worldwide. As stablecoins become an essential part of international payments and crypto trading, regulators from Asia to Europe are racing to strike a balance between fostering innovation and preventing illicit finance. For investors, crypto businesses and financial institutions, Thailand’s approach could offer an early glimpse into how digital asset oversight may evolve across emerging markets.
The Bank of Thailand is working with the country’s Securities and Exchange Commission to monitor high-volume stablecoin transactions, particularly those involving USDT, while expanding compliance requirements across commercial banks, currency exchanges and gold dealers. Authorities aim to identify suspicious financial flows linked to the country’s vast “gray economy,” where funds from illegal activities—including scam call centers operating across Southeast Asia—are believed to circulate.
According to Bank of Thailand Governor Vitai Ratanakorn, the campaign is designed as a long-term strategy rather than a temporary enforcement effort. Thai authorities estimate scam-related losses reached approximately $3.4 billion in 2025, fueled by an estimated 173 million scam calls and fraudulent text messages, highlighting the scale of cyber-enabled financial crime confronting the region.
The new measures require greater transparency for large cash transactions, including mandatory declarations of fund sources for significant deposits. Exchanges involving large volumes of banknotes without a legitimate commercial purpose will face increased scrutiny, while cash deposits exceeding 5 million baht (around $150,000) will require full disclosure. Regulators believe combining oversight of traditional finance with blockchain-based transactions will make it more difficult for criminal organizations to move illicit proceeds through multiple financial channels.
Thailand’s tougher stance comes despite its reputation as one of Southeast Asia’s most active cryptocurrency markets. Crypto trading remains legal, with Bitkub, the country’s largest digital asset exchange, processing roughly $26 million in daily trading volume. Data from CoinGecko indicates that the USDT/THB trading pair accounts for the largest share of activity, underscoring the stablecoin’s importance in Thailand’s digital asset ecosystem. However, the central bank continues to prohibit the use of cryptocurrencies and stablecoins for everyday payments.
The latest crackdown also follows a controversial enforcement campaign in 2025, when Thai banks froze around three million bank accounts suspected of being linked to mule networks and illicit financial activity. While the initiative disrupted criminal operations, it also affected thousands of legitimate individuals and businesses, raising concerns about striking the right balance between aggressive enforcement and financial inclusion.
As stablecoins become increasingly integrated into global finance, Thailand’s regulatory strategy may serve as a blueprint—or a cautionary tale—for other governments. The challenge facing policymakers is no longer whether digital assets should be regulated, but how to combat sophisticated financial crime without undermining the efficiency and innovation that have made stablecoins a cornerstone of the emerging digital economy.
