The order on the checkout page decides more than the method list does
The default option — the one already selected or shown first — should be whichever path the most buyers can complete without leaving the page or opening another app. For a lot of Vietnamese buyers that's a bank transfer or a QR code, not because it's trendy but because it doesn't require installing anything or trusting a redirect mid-checkout.
E-wallets like ZaloPay and MoMo earn their place lower on the page as recognizable, familiar options rather than as the default — a logo a buyer already trusts from other apps reduces hesitation even in the second or third slot. The goal of the ordering is removing friction for the specific audience actually landing on that page, not listing every method the market happens to support.
Card payment sits differently again: it's the most familiar option for a Western buyer and the least familiar for a first-time Vietnamese buyer used to bank apps and QR codes. If the storefront serves both a domestic and an overseas audience, that's a reason to detect the buyer's likely market and reorder the page for them, not a reason to pick one universal order for everyone.
It matters even more for a Vietnamese business buyer specifically: many companies need a domestically issued VAT invoice (hóa đơn đỏ) to reimburse the purchase internally, and an international card gateway typically can't produce one. For that audience, bank transfer stays the safer default regardless of order value — it's the rail that lets the seller issue a proper Vietnamese invoice, not just the one buyers happen to trust more.
Cash on delivery is a trust bridge, not a permanent default
Cash on delivery exists because a buyer doesn't yet trust the storefront enough to pay before the product arrives. That's a legitimate reason to keep it — especially for a new brand with no order history and no reviews yet — but it's a starting position, not a fixed feature of the market.
Every cash-on-delivery order also carries operational cost on the brand's side: refused parcels, return logistics, and a delayed read on whether a sale actually happened. As a storefront builds order history, reviews and repeat buyers, that trust bridge stops being necessary for as many of them, and the checkout order should shift to reflect it rather than staying frozen at the launch-day settings.
- New brand, first-time buyers: keep cash on delivery visible and easy to select
- Repeat buyers, established storefront: move it below prepaid options, or gate it behind an order-value threshold
- Either way, track it as a moving decision tied to your own order data, not a one-time launch setting
Every extra method adds a reconciliation cost, not just a build cost
Adding a payment method to a checkout page looks like a small decision — one more logo, one more integration. What it actually adds is a separate flow behind the scenes: matching what came in against what the store expects, handling that method's own refund and dispute process, and a team member who now has to check one more place before closing the books on a day's orders.
That reconciliation load compounds with volume before it ever touches transaction fees. The practical guidance is to list the two or three methods actual buyers use, not everything available in the market — fewer well-chosen options convert better than a wall of logos, and they're cheaper to operate. Fees, settlement timing and gateway selection are a separate decision from this one; that's covered in the deeper walkthrough at hq.aximora.co/blog/vietnam-payments.html.
- Every method added means one more place to check before a day's orders can be closed out
- Refund and dispute handling differs by method, so support has to learn a separate process for each one added
- A checkout page with three well-used options usually outperforms one with six rarely-used ones
Why the published cash-on-delivery numbers don't agree with each other
Each payment provider publishes a national cash-on-delivery or e-wallet split pulled from its own transaction ledger. A provider whose main business is cash-on-delivery fulfillment sees a ledger skewed toward cash-on-delivery orders; a provider whose main business is wallet processing sees the opposite. Neither ledger is a representative sample of the whole market — it's a sample of that provider's own customer base.
That's why the safer move is to stop looking for a national number at all and use the storefront's own checkout data instead: which method buyers actually pick when given a real choice, on this specific page, for this specific product. That number won't match any vendor's blog post, and it's the only one that should shape the checkout order.

