Best 8 B2B Payment Gateways for Singapore Retailers

1. Airwallex

Airwallex holds an MAS Major Payment Institution license and acts as an acquirer-agnostic gateway for B2B receivables. The core sell: multi-currency virtual accounts (SGD, USD, EUR, GBP, AUD, MYR) let a Singapore retailer issue an invoice in USD, receive payment into a US virtual account number, and settle into SGD at near mid-market FX.

The gateway itself is a Payment Link (branded checkout page) and a full API for embedded “pay by invoice” flows. A wholesale retailer can attach a customer’s purchase order number to the link, and Airwallex will reconcile the incoming transfer to that order number automatically. Card acceptance for B2B buyers hits 2.9% + $0.30; local PayNow/FAST transfers settle in seconds with no network fee.

Best for: retailers collecting from overseas wholesalers who insist on paying in their own currency instead of SGD.

2. HitPay

HitPay is the most regional gateway here — built for Singapore merchants, with a strong PayNow presence. For B2B, the killer feature is PayNow Corporate invoicing: you generate an invoice physically, and the customer scans via their corporate banking app to pay. The payer’s name and invoice reference are matched automatically in HitPay’s reconciliation engine.

HitPay also supports FAST bank transfers, recurring billing for monthly wholesale orders, and virtual account issuance (each B2B client gets a unique UEN-tagged account reference). The card gateway (Visa/Master/Amex) is 2.85% per transaction, but PayNow and bank transfer are sub-1%, which matters when your average wholesale invoice is $2,000+, not $40.

Best for: SME retailers needing simple, low-cost domestic B2B receivables without building a bank-integration team.

3. Stripe (Billing & Invoicing)

Stripe handles B2B retail payments through Stripe Billing, Invoice, and the broader Payments platform. The differentiator for B2B runs on the back end: invoice dunning (automatic retry of failed corporate card charges on a custom schedule) and network tokens that refresh card details on file. This reduces decline rates on corporate purchasing cards that expire or lose their chip data.

For a retailer running a wholesale subscription program, Stripe’s Billing engine can support arbitrary net-30/net-60 terms, with automatic accrual of late fees onto the next invoice. Tokenization is PCI Level 1. The trade-off is pricing: standard domestic card pricing is 3.4% + $0.50 SGD, steeper than the PayNow-heavy local gateways.

Best for: retailers with recurring B2B revenue cycles, not one-off high-value bulk invoices.

4. Payoneer

Payoneer has historically been the “freelancer payout” rail, but for Singapore retailers it now functions as a B2B gateway for export-heavy wholesale. A retailer can open local receiving accounts in 20+ currencies, invoice a U.S. distributor, and the distributor pays via their local ACH — which cuts conversion fees and speeds up settlement from days to minutes.

Payoneer Checkout is the more direct gateway: a hosted payment page for accepting cards, bank transfers, and e-wallets. For B2B, the “Bill Pay” feature moves funds to overseas suppliers in their local currency, which is useful when a retailer both collects and pays cross-border. Settlement into DBS/OCBC/UOB is same-day for SGD.

Best for: cross-border B2B retail where the entire supply chain from supplier to distributor spans multiple currencies.

5. Nium

Nium is a B2B payments infrastructure company — not a fill-in-the-blank gateway. You plug it into your ERP (SAP, NetSuite, custom) via API, and it handles the full order-to-cash cycle, from invoice generation to virtual account reconciliation. A Singapore retailer can issue a virtual account number per customer, mapped to a purchase order, and Nium matches payments to those sub-ledgers automatically.

This removes the manual effort of matching a corporate bank transfer with a customer reference string. Nium also routes real-time payments across 100+ countries, so an Indonesian buyer can pay with local rails (IDR / VA) while your books stay in SGD. The gateway includes both pay-in (cards, local methods) and pay-out (supplier remittance) in one contract.

Best for: mid-market retailers with a substantial internal ERP team and an order volume that would otherwise require full-time AR clerks.

6. Xendit

Xendit is MAS-licensed in Singapore but has its deepest payment rails in Indonesia, Malaysia, and the Philippines. For a Singapore retailer selling to corporate buyers across SEA, this matters. Your B2B customer in Jakarta can pay via DuitNow QR, an Indonesian bank virtual account, or convenience stores — Xendit converts that into settlement to your SGD account.

The gateway’s invoice feature can generate a payment link that includes the customer’s local method preference, saving you from explaining wire transfers to a non-technical procurement team. Card and PayNow rates are roughly in line with HitPay, but the regional local method coverage (GrabPay, DANA, OVO, e-wallets) is more complete than most SG-native gateways.

Best for: retailers selling B2B into Malaysia, Indonesia, and the Philippines who need local payment methods and fast settlement.

7. Aspire for Receivables

Aspire is commonly known as a business spend card, but its payables side is what retail B2B users rely on. A retailer sends an invoice via Aspire’s payment link — the invoice can carry customer-specific payment terms, due dates, and a branding layer. Aspire pairs this with “automatic reminders” that escalate from a polite email on day 1 to a firm WhatsApp/email on day 30.

The real advantage is the reconciliation and expense sync: when that B2B payment lands, it auto-reconciles against the open invoice and the cash hits your Aspire account, from which you can settle suppliers in the same UI. This collapses the payables and receivables pipeline into one ledger, ideal for retailers with thin admin teams.

Best for: retailers who want a single finance stack for inbound payments, supplier payouts, and accounting reconciliation.

8. GHL Systems (eCommerce Gateway)

GHL Systems is an APAC acquirer with an MAS license and a physical presence in Singapore. Its B2B value is the hybrid omnichannel play: a retailer with a physical wholesale showroom and an ecommerce store gets one gateway for both. The gateway supports PayNow, cards (Visa/Master/Amex), and e-wallets, with recurring billing built in.

For high-value B2B transactions, GHL offers an “approval flow” where a transaction above a threshold is routed to a human approver (e.g., the wholesale manager) before the card is charged. This prevents unauthorized chargebacks in recurring wholesale. GHL also issues descriptive statements with exact invoice numbers, streamlining B2B accounts payable audits on the buyer’s side.

Best for: hybrids — retailers with a physical trade counter across Singapore plus a website, wanting one unified gateway.

Comparison Table