About
ABA PAY is the QR payment function inside ABA Mobile, the banking app of Advanced Bank of Asia (ABA Bank), a Cambodian bank owned by National Bank of Canada. In a shop the customer scans the merchant's QR code, or picks ABA PAY at an online checkout, then chooses which ABA account or card to debit, so no separate wallet top-up is needed. Since March 2022 ABA's merchant codes follow the KHQR standard of the National Bank of Cambodia's Bakong system, so apps of other Bakong member banks can scan them too. ABA reported more than 5 million ABA Mobile customers in 2025, and its website listed over 200,000 ABA PAY merchants as of 2026.
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