Payment Gateways in Singapore: Fees, PayNow and How to Actually Choose One

Last updated: 16 August 2026. Written by Adrian Tan, Singapore Digital Marketing (SDM).

Most Singapore store owners choose a payment gateway the way they choose a plug adapter: whichever one the platform suggested at setup, whichever one the developer had used before. Then eighteen months later somebody totals up a year of statements and discovers that processing fees have quietly become the third-largest line item in the business, behind stock and advertising.

The frustrating part is that the gap between a well-chosen payment stack and a badly-chosen one is rarely about the headline percentage everyone compares. It is about which methods your customers actually want to use, what happens on cross-border cards, how long your money sits in someone else’s account, and whether the 2% foreign exchange margin nobody mentioned is being applied to a third of your volume.

This guide covers what a payment gateway is and is not, how Singapore shoppers actually pay in 2026, a like-for-like fee comparison of the main options, a worked example showing what the differences cost at real volumes, and a decision framework by business type. It pairs with our guide to e-commerce CRO in Singapore, because the payment mix is one of the highest-leverage conversion decisions you will make.

Gateway, acquirer, PSP: what you are actually buying

The vocabulary is a mess, and vendors do not help by using the words interchangeably. It matters because it determines who you are contracting with and what can go wrong.

• The gateway is the technical layer. It takes card or wallet details from your checkout, encrypts them and passes them on. On its own, a gateway does not move money.
• The acquirer is the licensed institution that holds the merchant account, receives the funds from the card networks, and settles them to your bank. This is the regulated part.
• The payment service provider (PSP) is the modern bundle: gateway plus acquiring plus a dashboard plus payouts, all under one contract. Stripe, HitPay, Adyen, Airwallex and the like all sell this bundle. When people say “payment gateway” in 2026, this is nearly always what they mean.

The practical consequence: with a full PSP you sign one agreement, get one settlement, and one company owns any problem. With an unbundled setup — a gateway from one vendor plus a merchant account from a bank — you often get better rates at high volume and a much slower path to resolving anything.

The MAS licence question, briefly

Payment processing in Singapore is regulated by the Monetary Authority of Singapore under the Payment Services Act 2019. The Act covers seven regulated payment services; the two that matter to an online store are merchant acquisition (accepting and processing payments on a merchant’s behalf, including running an online payment gateway) and e-money issuance.

Providers sit in tiers. A Standard Payment Institution licence covers firms below prescribed thresholds — broadly S$3 million in monthly transactions for a single payment service, S$6 million across two or more, or S$5 million in daily outstanding e-money. Above those, a Major Payment Institution licence is required, which carries a minimum base capital of S$250,000 and an obligation to hold a security deposit protecting customer money.

You do not need a licence to accept payments for your own goods. But you should check that your provider holds one, because it is the difference between your settlement money being protected and being an unsecured claim if the provider fails. MAS publishes the register of licensed payment service providers — searching it takes two minutes and is the single cheapest piece of due diligence in this entire article.

How Singapore actually pays in 2026

Singapore’s payment landscape is unusually local for such an internationally-minded market, and it has shifted materially in the last two years. Worldpay’s Global Payments Report 2026 puts digital wallets at 40% of Singapore e-commerce value and cards at 44%, with credit preferred over debit by roughly three to one by transaction value. At the point of sale the same report records a milestone: in 2025, digital wallets overtook debit cards as the leading in-person payment method for the first time.

The wallets in question are mostly local. GrabPay, ShopeePay and PayNow dominate over Apple Pay and Google Pay in a way that catches out overseas-default checkouts, which typically ship with the global wallets enabled and the local ones missing entirely.

PayNow deserves separate attention because its reach is now close to universal. Association of Banks in Singapore figures put PayNow at around 11 million proxy registrations as of December 2025, covering more than 90% of the adult population and roughly 350,000 business entities. In June 2026 MAS and ABS published a PayNow Generation 2 study setting out planned enhancements, including a pilot of interoperability between PayNow QR and NETS QR by the end of 2026 — the intent being that a shopper can scan and pay at any merchant regardless of which scheme that merchant signed up to.

The operational lesson is simple. A Singapore checkout that offers only Visa and Mastercard is refusing a large and growing slice of how the market prefers to pay — and payment method availability is a documented cause of abandonment in its own right, cited by around 9% of shoppers in Baymard Institute’s checkout abandonment research.

What the main options actually cost

Here are the published Singapore rates for the three providers most Singapore SMEs end up comparing. All figures are the providers’ own public pricing at the time of writing; verify before you sign, because these change.

Three things in that table matter more than the rest.

The PayNow line is the biggest single lever. Moving a transaction from a domestic card at 2.8–3.9% to PayNow at 0.65–1.3% roughly halves or better the cost of that sale. On a S$120 order the difference between HitPay’s PayNow rate and PayPal’s domestic card rate is about S$3.90 — on a thousand orders a month, that is S$3,900. Nothing else on the page moves money like that.

Currency conversion is the fee nobody models. A 2% FX margin applied to a third of your volume is a larger real cost than the difference between two providers’ headline card rates. If you sell overseas in the buyer’s currency, model this explicitly.

Payout timing is working capital, not a fee. The difference between T+1 and T+7 on S$100,000 of monthly volume is roughly S$20,000 of cash permanently sitting somewhere other than your account. For a stock-heavy business that is a real financing cost even though it never appears on an invoice.

A worked example: what the mix costs at S$50,000 a month

Assume a Singapore store doing S$50,000 monthly at an average order value of S$100 — 500 orders. Compare three plausible payment mixes on HitPay’s published rates.

The full local mix saves about S$382 a month, or roughly S$4,600 a year, on identical revenue. Note what did the work: adding GrabPay alone barely moved the number, because wallet rates sit close to card rates. Almost all of the saving came from the 30% of orders that shifted to PayNow.

That is the whole strategic point of this article. Adding payment methods is a conversion play. Adding PayNow specifically is a conversion play and a margin play, and it is the only one on the list that is both.

The six costs that are not in the headline rate

When a client tells us a competitor quoted them a better rate, one of these is nearly always the reason the comparison was not like-for-like.

1. Cross-border card surcharges. A card issued outside Singapore costs more to accept — typically an extra 0.5 percentage point or a separate higher band. If a meaningful share of your customers are expats or overseas buyers, your blended rate will run above the domestic headline.
2. Currency conversion margin. Usually 2%, sometimes 3%, applied on top of everything else whenever a conversion happens. Selling in SGD only avoids it; selling in the buyer’s currency does not.
3. Payout and withdrawal fees. Free above a threshold, chargeable below it, and separately chargeable if you want funds in a currency other than SGD — Stripe, for example, prices USD payouts at 1% of volume with a minimum charge.
4. Disputes. A flat fee per chargeback regardless of outcome with some providers, refunded on a win with others. At S$15 a dispute this is trivial at low volume and material for anyone in a fraud-exposed category.
5. Refund treatment. Check whether the original processing fee is returned when you refund an order. Increasingly it is not — which means a high-return category is paying processing twice on a meaningful share of orders.
6. Platform application fees. If you run Shopify with a third-party gateway rather than the platform’s own, the platform may levy an additional transaction percentage. Read the platform’s terms, not just the gateway’s.

Choosing: a decision framework by business type

There is no single best gateway, which is why “best payment gateway Singapore” listicles are so unsatisfying. There are clean answers per situation.

Implementation: the checklist that prevents the common mistakes

Getting the contract right is half of it. These are the failures we see most often in web design and e-commerce build work, in rough order of how much they cost.

• Enable the local methods explicitly. Most platforms do not turn on PayNow, GrabPay or ShopeePay by default for a new Singapore account. This is a settings screen, not a development project, and it is regularly missed for months.
• Test on a real phone, on mobile data. Wallet redirects behave differently in an in-app browser than in desktop Chrome. Test the full flow from an Instagram link, because that is where a lot of your traffic arrives from.
• Display accepted methods above the fold on the product page, not only at the final checkout step. Payment reassurance works as a trust signal before the cart, which is the point at which the shopper decides whether to bother.
• Get GST handling right. Singapore’s GST rate is 9%. Whether prices shown include it should never be something the customer has to deduce at step three.
• Do not store card numbers. Use the provider’s hosted fields or hosted checkout so the card data never touches your server. This is the entire reason PCI DSS scope is manageable for a small business, and going the other way is the most expensive shortcut in e-commerce.
• Reconcile once a month against payouts, not against orders. Fee leakage — a wrong band, an unnoticed FX conversion — shows up in the gap between the two, and nowhere else.
• Handle the personal data properly. Payment records are personal data under the PDPA, and a breach involving financial account information is exactly the kind that triggers mandatory notification. See our note on PDPA and marketing tracking for how consent and retention should be handled around checkout.

Can a grant pay for this?

Sometimes, partly, and less than most vendors imply.

The Productivity Solutions Grant (PSG) supports pre-approved solutions from pre-approved vendors, which can include e-commerce and digital-commerce packages. What it does not do is subsidise your ongoing processing fees, your ad spend or a monthly retainer — those are operating costs, not a pre-approved solution. If a payment provider tells you their transaction fees are grant-claimable, that is a claim worth checking against the official listing before you believe it.

SDM is a pre-approved PSG vendor, but the application is made and managed by the business itself, not by us on your behalf. Separately, a new EDGE scheme is expected to land in the second half of 2026 — if you are planning a build with a grant component, that timing is worth factoring into when you start. Check the official pre-approved solution listing for what is claimable, and budget the build itself against realistic Singapore website costs rather than against what a grant might cover.

Where payment sits in the wider build

Payment selection is one decision inside a larger set. If you are still choosing a platform, our comparison of WordPress, Shopify and Wix for Singapore businesses covers how each handles local payment methods natively. If you are budgeting the project, website costs in Singapore sets realistic ranges, and the web design guide is the hub for the whole cluster.

And once payment is right, the rest of the checkout usually is not — extra costs shown late, forced account creation and slow delivery promises all outrank payment method availability as causes of abandonment. Our work on e-commerce CRO takes those in order. You can see how that plays out on real Singapore stores in our client case studies.

The short version

Check the MAS register before you sign anything. Enable PayNow and the local wallets, because that is where both the conversion gain and the margin gain are. Model your FX exposure honestly, because a 2% conversion margin on a third of your volume outweighs a 0.5 point difference in card rates. Reconcile monthly against payouts. And revisit the whole arrangement at S$500,000 a month, because at that point published rates stop being the relevant number.

If you want a second pair of eyes on a payment stack, or you are building a Singapore store from scratch and want it set up correctly the first time, get in touch with SDM — we will tell you plainly whether your current setup is costing you anything worth fixing.

Frequently asked questions

What is the cheapest payment gateway in Singapore?

There is no single cheapest provider, because the answer depends entirely on your payment mix. On published rates, HitPay’s domestic card rate of 2.8% plus S$0.50 undercuts Stripe at 3.4% plus S$0.50 and PayPal at 3.90% plus S$0.50. But the far larger saving comes from moving volume onto PayNow, which is priced at 0.65% to 1.3% depending on provider and transaction size — less than half the cost of any card transaction.

Do I need a MAS licence to accept payments on my website?

No. You do not need a licence to accept payment for your own goods and services. Your provider does, if it is carrying out merchant acquisition or e-money issuance in Singapore under the Payment Services Act 2019. Check the provider against the MAS register of licensed payment service providers before signing, because licensing is what protects your settlement funds if the provider fails.

Should I offer PayNow on my online store?

For most Singapore-focused stores, yes. PayNow has around 11 million proxy registrations covering more than 90% of the adult population, it settles fast, and it is priced far below cards. It also answers the trust objection directly, since the shopper never enters card details. Offer it alongside cards and wallets, not instead of them — roughly 9% of shoppers cite insufficient payment methods as a reason for abandoning checkout.

How much do payment gateway fees cost a typical Singapore store?

On a card-only mix, expect an effective rate around 3.3% of revenue. On a mix of half cards, 30% PayNow and 20% wallets, that falls to roughly 2.5%. For a store doing S$50,000 a month, that difference is about S$380 a month or S$4,600 a year on identical revenue, before any conversion benefit from offering more methods.

What hidden fees should I look for in a payment gateway contract?

Six things: the cross-border card surcharge, the currency conversion margin of typically 2% to 3%, payout and withdrawal fees including foreign-currency payout charges, the per-dispute chargeback fee, whether the original processing fee is returned on a refund, and any additional transaction fee levied by your e-commerce platform for using a third-party gateway.

Can I use a government grant to pay for payment processing?

Generally no. The Productivity Solutions Grant supports pre-approved solutions from pre-approved vendors, which can include e-commerce packages, but ongoing transaction fees and retainers are operating costs and are not claimable. If a vendor claims otherwise, verify it against the official pre-approved solution listing. The business applies for and manages the grant itself.

Photo: Shixart1985 via Wikimedia Commons, CC BY 2.0.