Quick Answer: Singapore merchants can accept PromptPay cross-border payments through HitPay — a MAS-licensed payment gateway (PS20200643) — without setting up a Thai entity. Thai customers scan a QR code and pay in THB from their PromptPay-linked bank app; merchants receive payouts in SGD. Cross-border transactions settle at T+2.

Thailand sends more than 700,000 visitors to Singapore each year, and the majority travel with PromptPay — Thailand's national real-time payment network — as their primary payment method. A souvenir shop in Bugis or a spa in Tanjong Pagar that only accepts PayNow and cards is invisible to this customer group at the point of payment.

Accepting PromptPay is not about adding complexity. It is about removing the friction that causes a Thai customer to walk away. According to Visa's economic empowerment research, contactless and QR-based payments now dominate consumer preference across Southeast Asia — and tourists increasingly expect to pay with the app they use at home.

What is PromptPay and why does it matter for Singapore merchants?

PromptPay is Thailand's national instant payment infrastructure, operated through participating banks and linked to 60 million user accounts across 21 banks. It works on a QR code model — customers open their Thai banking app, scan a merchant QR, and confirm payment in THB. The transaction completes in real time.

For Singapore merchants, PromptPay is a cross-border inbound payment method. The customer pays in THB; the merchant receives SGD. Currency conversion happens automatically at the point of payment — no foreign exchange desk, no manual reconciliation.

Retail, food and beverage, and wellness businesses near tourist corridors — Orchard Road, Bugis, Clarke Quay — stand to benefit most. Thai visitors are high-spend travellers, and payment friction at checkout is one of the most avoidable reasons a sale fails.

What other Thai payment methods can Singapore merchants accept?

PromptPay does not operate in isolation. Merchants who activate Thai cross-border payments typically enable all three Thai wallets together:

All three operate on the same QR-based flow. A merchant can present a single checkout screen — or a unified QR — and the Thai customer selects whichever app they use. HitPay supports all three Thai payment methods for Singapore merchants, with instant activation and no separate applications required per method.

Beyond Thailand, Singapore merchants can also accept QR code payments from Indonesia (QRIS), Malaysia (DuitNow), the Philippines (QR Ph), India (UPI), China (WeChat Pay), and South Korea (KakaoPay, PayCo, LINE Pay) — all under one integration.

How do cross-border PromptPay payouts work?

Understanding settlement timing prevents cash flow surprises. Cross-border transactions — including PromptPay, TrueMoney, and Rabbit LINE Pay — settle at T+2 in SGD. This is distinct from domestic PayNow transactions, which settle next business day.

The T+2 timeline reflects the cross-border FX conversion step. Merchants see the transaction confirmed immediately; funds reach the SGD payout account at T+2.

For businesses managing cash flow across a mix of domestic and tourist customers, the practical implication is straightforward: local PayNow and GrabPay sales settle next business day, while Thai wallet transactions follow a two-day cycle. Keeping both in view avoids confusion at reconciliation.

The Singapore Department of Statistics records tourism retail spend as one of the more stable contributors to Singapore's services trade — a segment where payment method coverage directly affects captured revenue.

How do Singapore merchants activate PromptPay through HitPay?

HitPay is licensed by the Monetary Authority of Singapore (MAS) under licence PS20200643 and operates as a Major Payment Institution. Merchants do not need a Thai business entity or a separate acquiring relationship to accept PromptPay.

The activation process:

1. Sign up for a HitPay account at hitpayapp.com — free, no monthly fee, approved in 1–3 business days.

2. Navigate to Settings > Payment Methods in the HitPay dashboard.

3. Enable PromptPay, TrueMoney, and Rabbit LINE Pay — all three are available under Payment Methods in the HitPay dashboard.

4. For in-person use, generate a QR code from the HitPay POS app or use HitPay Borderless QR on Android, iOS, or Web POS.

5. For online use, PromptPay is available via HitPay's Online Payments API and standard checkout flow.

At checkout, the merchant enters the SGD amount. HitPay auto-converts to THB at real-time exchange rates. The customer scans and pays in THB. The merchant receives SGD at T+2.

HitPay charges no monthly fees and no setup fees. For cross-border payment method rates, see hitpayapp.com/pricing.

Does PromptPay work for online stores as well as physical retail?

Yes. PromptPay is available both in-person and online through HitPay. For B2B or invoice-based businesses accepting multi-currency payments in Singapore, PromptPay can also be embedded into payment links — useful for tourism-adjacent service providers such as tour operators or experiences companies that book Thai customers in advance.

For e-commerce, PromptPay integrates via HitPay's API. Developers can embed it into checkout alongside PayNow, GrabPay, ShopeePay, Atome, and cards — with no separate integration per method. See HitPay's ecommerce payment solutions guide for platform-specific setup steps.

Practical takeaway

Activating PromptPay, TrueMoney, and Rabbit LINE Pay on HitPay takes under five minutes and costs nothing upfront. For any Singapore merchant near a tourist corridor, the question is not whether to accept Thai wallets — it is how much revenue has already been lost to the checkout gap.

Frequently Asked Questions