Thailand's payment market is led by PromptPay — the Bank of Thailand's instant payment + QR code system. PromptPay is virtually universal among Thai banking customers, with near-zero fees and instant settlement. Cards remain important for mid-to-high-ticket e-commerce, and TrueMoney leads the wallet space.
The local rails merchants must support to convert Thailand customers.
PromptPay is Thailand's central-bank-operated instant payment system, similar to UPI (India) or PIX (Brazil). It works via phone number, national ID, or QR code. Settlement is instant, 24/7, and fees for merchants are minimal (0.2-0.5%).
Domestic processing under BOT rules typically requires Thai entity. Cross-border processors can serve Thailand from outside, though FX and settlement constraints apply. For full PromptPay integration, partnerships with Thai PSPs are common.
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