PromptPay's scale has structurally rerouted Thai retail flow
PromptPay clears 2.2–2.3bn transactions a month and ~74m a day on BOT data, with 90m+ registered aliases against a 52m adult population. The rail's reach is the central reason BOT formally deferred retail CBDC in 2024 and now treats PromptPay sufficiency as a CBDC-substitution argument; the operating consequence is that card-acquiring economics in Thailand are increasingly pinned by what merchants can already do for free on QR.
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