PromptPay is Thailand's national instant payment network, run under Bank of Thailand oversight, and it now sits at the center of almost every rent payment, deposit, and utility bill a foreign resident handles in Thailand. For anyone relocating on a DTV, LTR, retirement extension, or corporate assignment, understanding how PromptPay actually works — and where the access friction currently sits — matters more in 2026 than it did a few years ago, because the rules around who can get a linked Thai bank account have tightened.
PromptPay, launched by the Bank of Thailand in 2016, lets a bank account be linked to a citizen ID number or a mobile phone number so money can be sent using that identifier instead of a full account number. According to the Bank of Thailand's own fee schedule, transfers of up to 5,000 baht are free, transfers over 5,000 up to 30,000 baht cost under 2 baht, over 30,000 up to 100,000 baht cost under 5 baht, and above 100,000 baht up to each bank's maximum limit costs under 10 baht per transaction. In practice, most Thai banks have waived these fees entirely for mobile app transfers since 2018, which is why P2P PromptPay transfers feel free to almost everyone using them day to day.
Registering for PromptPay itself is straightforward once you have a Thai bank account: foreigners can link an account to a passport or ID number and/or a mobile number through mobile banking, internet banking, an ATM, or a branch visit. The real bottleneck for newly arrived expats in 2026 is getting that underlying bank account in the first place. Multiple Thailand banking guides report that Bangkok Bank, Kasikornbank (K PLUS), and SCB have tightened new-account rules this year, generally requiring a long-term visa category — Non-B, Non-O, ED, or LTR, or a retirement extension — with tourist visas and DTV visas frequently turned away, following a wave of mule-account fraud in 2024–2025. This is a fast-moving, bank-by-bank policy area rather than a fixed law -- treat these visa-eligibility rules as unconfirmed for whichever specific bank branch you approach, and confirm current requirements directly with the bank before relying on them for a relocation timeline.
For those without a Thai bank account yet, several banks offer a workaround: Kasikornbank FX booths issue a PAY&TOUR prepaid card to passport holders, which can be topped up and linked to PromptPay for QR payments without a full bank account. Separately, several sources report that Wise has been rolling out a Bank of Thailand-licensed Thai QR payment feature in 2026 that lets its app scan PromptPay QR codes without a Thai bank account at all; this is a recent product change and should be confirmed on Wise's own site before you plan around it.
Among the major mobile banking apps, Kasikornbank's K PLUS is generally considered the most foreigner-friendly, with a full English interface and straightforward QR scanning; SCB Easy is fast and reliable for PromptPay QR use but SCB's account-opening rules are stricter; Bangkok Bank's Bualuang mBanking is widely used by long-term expats, though Bangkok Bank's branch network and English-language support in tourist and expat areas remains a practical advantage for account holders who already cleared the visa requirement.
PromptPay also now connects internationally. The Bank of Thailand's cross-border payment program links PromptPay to Singapore's PayNow, Malaysia's DuitNow, Vietnam's VietQR, Indonesia's QRIS, Cambodia's KHQR, Laos, Hong Kong's FPS, and newer links with Japan, Korea, and China, mostly for QR payments by tourists and for phone-number remittances by migrant workers. For the Thailand-Singapore corridor specifically, the Bank of Thailand caps mobile-number transfers at SGD 1,000 or THB 25,000 per day per participating bank, executed within minutes at close to domestic-transfer cost.
For anyone relocating into a BAANLYY-managed or -marketed property, the practical takeaway is sequencing: line up your visa category and target bank before arrival, confirm that bank's current foreign-account policy directly rather than relying on older blog posts, and expect that many landlords, agents, and building management offices will expect rent, deposits, and utility reimbursements to move by PromptPay QR once your account is set up.