Thai Stablecoin: Payment Corridor Use and THB-Pegged On-Chain

Questions this report answers

What is the BOT regulatory pathway for Thai stablecoins? Per Tilleke and Gibbins and BOT direct disclosures, the Bank of Thailand launched the Programmable Payment Sandbox (Stablecoin Sandbox) in 2024 and expanded it in December 2025 to test Thai-baht-backed stablecoins and programmable payment solutions. Applications are accepted from 24 December 2025 with no current submission deadline. The expansion follows initial-phase testing with three sandbox participants who convert Thai baht or cryptocurrency into programmable payments under joint BOT Enhanced Regulatory Sandbox and SEC Digital Asset Regulatory Sandbox coordination.^{[4, 2, 3]}

What are the legal constraints on THB-pegged stablecoin issuance for public payment use? Per Tilleke and Gibbins and Baker McKenzie regulatory analyses, stablecoins pegged to the Thai baht (THB) used as a medium of payment for public use are considered to mirror fiat currency and violate the Currency Act B.E. 2501 (1958). Such stablecoins can also be classified as e-money under the Payment Systems Act B.E. 2560 (2017). The BOT urges issuers to engage in preconsultation prior to implementation, due to concerns about stablecoins being used in place of THB currency. The result: meaningful THB-pegged stablecoin issuance for public-payment use is currently limited to BOT-sandbox-approved participants only.^{[2, 1]}

How does TouristDigiPay bridge crypto-to-fiat? Per Silk Legal, the TouristDigiPay programme allows crypto-to-THB QR payments under a controlled framework for tourist-payment use cases. The programme is the most concrete operational bridge between digital-asset and fiat payment infrastructure in Thailand to date. It addresses a structural pain point: foreign tourists holding crypto often face friction at Thai merchants who only accept THB-denominated payments; TouristDigiPay enables on-the-spot crypto-to-THB conversion at merchant point-of-sale.^[5]

What is the cross-border ASEAN settlement direction? Per BOT's Digital Baht Net framework and Chambers Financial Services Regulation 2025 coverage, Thailand's stablecoin and digital-payment trajectory points toward cross-border interoperability with regional networks supporting ASEAN central-bank settlement. The Digital Baht Net is positioned as a major step toward a regional digital financial corridor — bilateral pilots are in flight but full-scale ASEAN central-bank stablecoin or CBDC interoperability is still an aspiration rather than a deployed system. The 2026-2027 horizon is when this could meaningfully scale.^{[9, 8]}

Executive summary

Thai stablecoin regulation operates under tight legal constraints and through a controlled-experiment sandbox structure. The Currency Act B.E. 2501 (1958) and Payment Systems Act B.E. 2560 (2017) mean that THB-pegged stablecoins used as a medium of payment for public use are considered to mirror fiat currency and violate currency-issuance monopoly per Tilleke and Gibbins regulatory analysis. The Bank of Thailand's Programmable Payment Sandbox (Stablecoin Sandbox) launched in 2024 and expanded December 2025 is the structural pathway for permitted stablecoin experimentation. Applications are accepted from 24 December 2025 with no current deadline; three participants currently test programmable payments under joint BOT-and-SEC sandbox coordination.^{[2, 4, 3]}

Three concrete operational use-cases are now in flight. TouristDigiPay (per Silk Legal) allows crypto-to-THB QR payments under a controlled framework for tourist-payment use cases — the most concrete crypto-to-fiat bridge to date. Sandbox-participant programmable-payment services convert Thai baht or cryptocurrency into programmable payments for various business-to-business transactions. Thai SEC publicly endorses a BOT-issued Bath Stablecoin per Nation Thailand coverage — joint SEC-and-BOT strategic positioning that frames the medium-term policy direction. The Bath Stablecoin would be a BOT-issued, THB-pegged digital asset operating under the central-bank monopoly framework rather than as a private-issuer product.^{[5, 6]}

Cross-border ASEAN settlement is the structural long-term thesis. BOT's Digital Baht Net framework targets interoperability with regional networks supporting cross-border settlement among ASEAN central banks and payment providers per Chambers Financial Services Regulation 2025 coverage. This positions Thailand as a regional digital financial corridor anchor. Bilateral pilots are in flight; full-scale ASEAN central-bank stablecoin or CBDC interoperability is still aspirational. The 2026-2027 horizon is when the architecture and governance frameworks could move from pilot to operational scale. The structural-economic upside is meaningful: Thai-baht-region cross-border payments today rely on SWIFT-correspondent-banking infrastructure with multi-day settlement and 1-3%🔒 costs; on-chain alternatives could compress these to minutes and basis points.^{[9, 8]}

Thai stablecoin regulatory framework