How to select a payment processor in Singapore (2026)

Key Takeaways:

• The right payment processor depends on your business model, your customers' preferred payment methods, and whether you collect revenue in multiple currencies.

• In Singapore, prioritise providers that support local payment methods like PayNow and GrabPay, and that hold a valid licence from the Monetary Authority of Singapore (MAS).

• Airwallex is built for Singapore businesses that operate across borders, combining payment acceptance, multi-currency accounts, and global transfers in one platform.

If you're wondering how to select a payment processor, the answer depends on your business model, your customers, and where you plan to grow.

This guide explains what a payment processor does, the key factors to consider when comparing providers, and how to choose the right solution for your business in 2026.

If you already understand how to choose a payment processor and are looking to compare specific providers in Singapore, read our guide to the best payment processors in Singapore.

What a payment processor does

A payment processor is the company that routes transaction data between your business, the card network, and your customer's bank. It authorises payments and moves funds into your account after a transaction is approved.

Payment processors are often confused with payment gateways and merchant accounts, but they serve different functions:

• Payment gateway: Captures and encrypts your customer's payment details at checkout, then securely sends them for processing.

• Payment processor: Handles the authorisation process and movement of funds between the relevant parties.

• Merchant account: A holding account where customer funds are temporarily stored before being settled into your business bank account.

Many modern payment providers bundle some or all of these services into a single platform, which means businesses often don't need to source them separately.

Step 1: Map your business requirements first

Before you compare providers, be clear on what you actually need. The criteria that matter for a local retail business are different from those that matter for a SaaS company billing international subscribers.

If you only sell to local customers in Singapore

Your priority is local payment method coverage. PayNow, GrabPay, NETS, and major card networks (Visa, Mastercard, Amex) are the baseline. A processor that settles in SGD is usually sufficient.

Look for simple onboarding, transparent flat-rate pricing, and reliable local customer support. You can deprioritise multi-currency features for now, but check that your processor can support them later if your business grows.

If you sell cross-border or you have international suppliers

Currency handling becomes your top concern. You want a processor that accepts payments in foreign currencies and settles like-for-like. That means you’re able to receive USD from a US customer as USD, instead of being forced to settle in SGD.

Also check which payment methods are supported in your target markets, and how the processor handles international card fees.

If you’re running a subscription or SaaS model

Recurring billing, card-on-file tokenisation, and dunning management (automated retries for failed payments) matter most here. Verify that your processor supports automatic subscription renewals and handles failed payment recovery.

If you bill international customers, multi-currency support and automatic tax handling are also important.

If you’re operating a marketplace or platform

In this case, you need split payment functionality. This lets you accept a payment from a buyer and route a portion to a seller or third party automatically.

Look for processors that support connected accounts, automated fee deductions, and compliant seller onboarding. Our guide on marketplace payment processing covers this in detail.

Step 2: Evaluate the fee structure

Most businesses compare payment processors on headline transaction rates. That's a mistake. The rate on a pricing page is rarely the full picture.

Flat-rate pricing

Flat-rate pricing charges you a fixed percentage plus a small per-transaction fee on every payment, regardless of card type or geography. It's simple and predictable — useful for businesses with lower transaction volumes that want to forecast costs easily.

The trade-off is that it can become expensive at scale. You pay the same rate whether the payment comes from a local Visa debit card or an international corporate credit card.

Those cards carry very different interchange costs, but flat-rate pricing ignores that difference entirely.

Interchange-plus pricing

Interchange-plus pricing — also called cost-plus — separates the interchange fee set by the card networks from the processor's own margin.

You pay the actual interchange cost plus a fixed markup. This is more transparent and often cheaper at higher volumes. It's the pricing model typically used by enterprise-grade processors.

Hidden costs to watch for

The headline transaction rate is just one line item. Before you commit to a provider, calculate your total cost across all of these:

• Currency conversion fees: A percentage charged on top of the transaction rate when your customer pays in a foreign currency — this alone can erode your margin on international orders

• International card fees: An additional surcharge when the card is issued in a different country from your merchant account

• Chargeback fees: A flat fee typically charged when a dispute is filed

• Monthly or subscription fees: Platform access fees that apply even in low-revenue months

• PCI DSS compliance fees: Some processors charge separately for maintaining Payment Card Industry Data Security Standard compliance

A processor with a lower headline rate but high foreign exchange (FX) fees can cost more overall. Always compare your expected transaction mix — local versus international — before deciding.

Step 3: Check which payment methods are supported

Payment method coverage has a direct impact on your checkout conversion rate. When a customer reaches checkout and can't find a payment option they trust, they leave. It's that simple.

For any business operating in Singapore, the baseline should include:

• Cards: Visa, Mastercard, and American Express are the minimum. UnionPay is worth adding if you serve Chinese tourists or residents.

• PayNow: Singapore's real-time bank transfer network is used by the vast majority of local consumers and businesses.

• GrabPay: Widely adopted across Singapore, particularly among mobile-first shoppers.

• NETS: Relevant for businesses that also take in-person payments at physical locations or events.

• Apple Pay and Google Pay: Expected by a growing share of mobile shoppers across all age groups.

For a full breakdown of payment methods in Singapore, see our complete payment methods guide.

If you sell to customers outside Singapore, you’ll need to cater to their preferences as well.

Want to accept multiple payment methods without integrating them one by one? Airwallex supports payments across 160+ payment methods and 180+ countries. Learn more about Airwallex Payments or sign up now.

Step 4: Assess multi-currency and cross-border capability

Singapore’s domestic market is small. Many businesses here collect revenue from overseas customers, pay international suppliers, or do both. If that describes you, how your processor handles currency is one of the most important criteria you'll evaluate.

Most processors default to SGD settlement. That means every payment, regardless of the customer's currency, gets converted to Singapore dollars before it reaches your account. That conversion isn't free, and it happens on every transaction.

Like-for-like settlement is the alternative. You receive USD as USD, EUR as EUR. You convert only when you need to, which can significantly reduce your FX costs over time.

Before shortlisting any provider, check:

• Settlement currencies: Does it settle in SGD only, or in the customer's original currency?

• FX fees: What does the processor charge to convert currencies, and is it disclosed upfront?

• Multi-currency holding: Can you hold balances in foreign currencies and pay out in them directly?

• International payout coverage: Which countries and currencies does it support for outbound payments?

Step 5: Verify MAS licensing and security compliance

Singapore regulates payment service providers under the Payment Services Act (PSA) 2019, administered by the Monetary Authority of Singapore (MAS).

Any provider processing payments in Singapore must hold a valid MAS licence. This is a non-negotiable starting point when evaluating any processor.

MAS issues two main licence types:

• Standard Payment Institution (SPI)

• Major Payment Institution (MPI)

The difference relates to the scale and scope of payment activities. MPI holders are authorised to conduct a broader range of payment services and are subject to a greater level of MAS oversight. Airwallex holds an MPI licence in Singapore.

Beyond licensing, verify these security standards before shortlisting any provider:

• PCI DSS compliance: The Payment Card Industry Data Security Standard governs how card data is stored, processed, and transmitted. A good processor handles most of the compliance burden on your behalf, reducing your own obligations considerably.

• 3D Secure (3DS): An authentication layer that reduces card fraud at checkout. Look for processors that support smart 3DS optimisation — applying authentication only when the transaction risk warrants it, so you don't add unnecessary friction for low-risk customers.

• Tokenisation and encryption: Your processor should replace sensitive card data with tokens and encrypt data in transit, so raw card details are never exposed.

You can verify a provider's MAS licence status directly on the MAS Financial Institutions Directory¹.

Step 6: Test integration and setup requirements

Start by checking whether the processor offers a native plugin for your eCommerce platform. Shopify, WooCommerce, and Magento plugins let you start accepting payments quickly without custom development. 

If you need more control over the checkout experience, an API-based integration gives you that flexibility — but requires developer resources to build and maintain.

Key questions to answer before you commit:

• eCommerce plugin: Does it support your platform out of the box?

• Checkout type: Does it offer embedded checkout (customer stays on your site) or does it redirect to a third-party page? Embedded checkout typically converts better.

• API documentation: If you'll use the API, is it clearly documented and actively maintained?

• Onboarding time: How long does account approval take? Some processors approve in minutes; others take days.

• Accounting integrations: Does it sync with Xero, QuickBooks, or NetSuite if you use them?

The simpler the integration, the faster you go live.

Step 7: Check settlement speed and reliability

Settlement speed is how quickly funds from completed transactions reach your business account. This matters more than most businesses realise, especially when you're managing suppliers, payroll, or inventory purchases.

Most processors settle within one to three business days after a transaction is authorised. Some offer same-day or next-day settlement, though this may come at an additional cost or be limited to certain payment methods.

When comparing providers, check:

• Settlement timeline: Is it T+1, T+2, or T+3? Does it vary by payment method?

• Settlement currency: As covered in Step 4, does it settle in SGD only, or in the customer's original currency?

• Same-day options: Is faster settlement available, and what does it cost?

• Uptime record: Does the processor publish a live system status page? Do they offer a service level agreement (SLA)?

Questions to ask before you sign up

Most payment processor agreements are long-term commitments. Before you sign, ask your potential provider these questions.

On fees and costs:

• What is the full fee breakdown, including international card fees, FX fees, and chargeback fees?

• Are there monthly fees, minimum volume requirements, or early termination penalties?

• How are fee changes communicated, and how much notice do you give?

On compliance and security:

• Is your company licensed by MAS, and what licence type do you hold?

• Are you PCI DSS compliant, and what is my compliance obligation as a merchant?

On operations:

• What is your average settlement timeline, and does it differ by payment method?

• What happens to my funds if there is a dispute or chargeback — are they held?

• What support is available if something goes wrong during a peak trading period?

On growth:

• Can I add new payment methods or currencies without changing processors?

• Do you support the markets I plan to expand into?

No reputable processor will refuse to answer these questions. If a sales team deflects, that tells you something important.

Why Singapore businesses choose Airwallex to process payments

Many payment processors do one thing well. Stripe is strong on developer tooling. PayPal has broad consumer recognition. HitPay works well for local SMEs that need simple, low-volume card acceptance. If your needs are narrow, any of these may be enough.

But most Singapore businesses eventually outgrow a narrow solution. You start selling to customers in Australia, Japan, or the US. You take on suppliers in China or Europe. You need to handle foreign currencies without losing margin on every conversion. That's where Airwallex comes in.

Airwallex is built for businesses that operate across borders, which describes most businesses in Singapore. It combines payment acceptance, multi-currency accounts, and global transfers in one platform, under one MAS Major Payment Institution licence.

Here’s what you get with Airwallex:

Accept payments in 180+ countries

Airwallex supports payments across 160+ payment methods and 180+ countries. That includes PayNow and GrabPay for local customers, major card networks globally, and market-specific methods across Asia and beyond.

Pay suppliers and teams in 200+ countries

Airwallex transfers let you pay overseas suppliers and contractors directly from your foreign currency balances. 94% of our transfers go through local rails with no SWIFT fees.

Save up to 80% on FX fees

FX fees are one of the most overlooked costs in cross-border payment processing. Airwallex charges highly competitive FX rates of 0.4% to 0.6% above interbank. This lets you save up to 80% on FX fees as compared to traditional banks.

Frequently asked questions (FAQs)

What is the difference between a payment processor and a payment gateway?

A payment gateway captures and encrypts your customer's payment details at checkout, then passes them to the payment processor. The processor handles the actual movement of funds between the customer's bank and your business account. Many providers bundle both into one platform. You can read more in our guide on payment gateways vs payment processors.

Do I need a MAS-licensed payment processor in Singapore?

Yes. Any provider processing payments in Singapore must hold a valid licence from the Monetary Authority of Singapore (MAS) under the Payment Services Act 2019. Always verify a provider's licence status on the MAS Financial Institutions Directory before signing up.

What payment methods should my processor support in Singapore?

At minimum: Visa, Mastercard, PayNow, and GrabPay. Add Apple Pay and Google Pay if you sell to mobile shoppers. If you sell across Southeast Asia, check coverage for market-specific wallets like Alipay, GCash, and TrueMoney.

What is interchange-plus pricing?

Interchange-plus pricing separates the interchange fee set by card networks from the processor's markup. You pay the actual cost of each transaction plus a fixed margin. It's more transparent than flat-rate pricing and often cheaper at higher transaction volumes.

How long does payment settlement take in Singapore?

It depends on the provider and payment method. Card payments typically settle within one to three business days. PayNow can settle as quickly as the next business day. Some processors offer same-day settlement for an additional fee.

Can I switch payment processors if my needs change?

Yes, but check your contract first. Some processors include early termination fees or minimum volume commitments. Before switching, confirm that your new provider supports everything your current one does — and test the integration before going live.

Sources:

1. https://eservices.mas.gov.sg/fid

This publication does not constitute legal, tax, or professional advice from Airwallex, nor does it substitute seeking such advice, and makes no express or implied representations / warranties / guarantees regarding content accuracy, completeness, or currency. If you would like to request an update, feel free to contact us at [[email protected]]. Airwallex (Singapore) Pte. Ltd. (201626561Z) is licensed as a Major Payment Institution and regulated by the Monetary Authority of Singapore.