Thailand's central bank and SEC step up scrutiny of large USDT flows

Thailand is tightening oversight of large Tether transfers, putting high-volume USDT activity under a joint review by the Bank of Thailand and the Securities and Exchange Commission. Bank of Thailand Governor Vitai Ratanakorn said on July 11, 2026, that regulators are examining transactions suspected of masking beneficial ownership or bypassing standard remittance channels. Enforcement is expected to ramp up notably in Q4 2026, and early findings have already been referred to the SEC for possible disciplinary action. The audits began in Q3 2026 and coincide with new cash-deposit controls. Cash deposits above 5 million baht (about $140,000 at current exchange rates) now require documentation proving the source of funds. Authorities point to earlier measures as evidence the tighter approach is biting. Rules introduced in April 2026 drove a 35% drop in high-value cash withdrawals. The impact has extended beyond crypto: monthly gold withdrawals fell from about 4,000 kg to roughly 700 kg after the changes, an 82% decline. A key driver behind the crackdown is the profile of stablecoin sellers. A January 2026 investigation found around 40% of USDT sellers on Thai platforms were foreign individuals, accounting for nearly half of sell-side activity in Thailand's stablecoin market. The move comes after the SEC's recent acceptance of stablecoins within regulated markets. In March 2025, the regulator approved USDT and USDC for trading on regulated venues, expanding the list of permitted digital assets for ICO-related activities beyond Bitcoin, Ether, XRP and Stellar. Market participants expect stricter checks to raise compliance costs and slow execution, pressures that typically reduce trading activity. With a meaningful share of USDT volume tied to foreign sellers who may now face higher barriers, volumes could contract before stabilizing. Traders are likely to focus on Thai exchange data in Q4 2026 as enforcement intensifies.