How to Choose a Payment Gateway for Your Online Store

To choose a payment gateway well, start with your customers rather than the fee table. List the payment methods they expect in each country you sell to, then find providers that support those methods, settle in your currencies and integrate cleanly with your platform. Only then compare fees, payout timing, fraud tools and support. A gateway with slightly lower fees but missing the payment method your customers prefer will cost far more in lost orders than it saves. The right gateway is the one that lets the most customers pay you easily, at a cost and risk level your business can live with.

What a payment gateway does

When a customer pays online, several parties are involved. The gateway securely collects the payment details, sends them for authorisation, returns the result to your store and eventually moves the money to your bank account. Many modern providers combine the gateway with the merchant account and payment processing, so you deal with a single company.

From your point of view, the gateway affects:

• Which payment methods appear at checkout.
• How smooth and trustworthy the payment step feels.
• How many payments are approved or declined.
• What each sale costs you.
• How quickly you receive your money.
• How much card data your business has to protect.

Because it touches the most sensitive moment of the purchase, the gateway has a direct effect on conversion. Our guide on how to reduce cart abandonment shows why missing payment methods are a common reason shoppers leave.

Start with your customers' payment methods

Payment habits differ widely between countries and customer types. Before comparing providers, write down what your customers use.

Your own data helps too. Look at which payment methods current customers use, which ones they ask for in emails and chats, and where checkout drop-off is highest. A method that many shoppers request is often worth adding even if it costs a little more.

If you sell internationally, the list may be different for each country. Our guides to selling in Europe and e-commerce in Saudi Arabia describe local payment preferences in more detail.

How to choose a payment gateway: the criteria

1. Coverage

Check that the provider can accept payments from customers in every country you sell to, supports the currencies you price in and can settle funds to your bank account in the currency you want. Some providers support many countries for customers but only certain countries for merchants.

2. Payment methods

Confirm that every method on your list is supported, and how it appears at checkout. Ask whether local methods need separate agreements or are included.

3. Platform integration

Check for an official, maintained integration with your e-commerce platform. Look at how the payment form appears, whether it supports saved cards, subscriptions and partial refunds, and how often the integration is updated. A poorly maintained extension becomes a security and reliability risk.

4. Fees

Compare the total cost, not the headline rate. Include percentage and fixed fees per transaction, higher fees for international or premium cards, currency conversion margins, monthly or setup fees, refund fees and chargeback fees.

5. Payout timing

Find out how long it takes for money to reach your account, whether the provider holds a reserve, and what triggers delays. Cash flow matters, especially for growing businesses.

6. Approval rates and authentication

Some providers approve more legitimate payments than others, thanks to better routing and local processing. Strong customer authentication, such as 3-D Secure, should work smoothly on phones without sending shoppers through clumsy redirects.

7. Fraud tools

Look for built-in fraud screening you can tune, clear rules for when payments are blocked or reviewed, and good data to investigate suspicious orders.

8. Support

When payments fail, you need help quickly. Check support hours, channels and whether you get a named contact as your volume grows.

Security and compliance

Every business that accepts card payments must follow the Payment Card Industry Data Security Standard, maintained by the PCI Security Standards Council. The way your gateway collects card details decides how much of that burden falls on you.

• Hosted payment pages send shoppers to the provider's page to pay. Your servers never see card data, which keeps your compliance simple.
• Embedded payment fields appear inside your checkout but are served by the provider, so card data still goes directly to them.
• Direct integrations where card data passes through your servers carry the heaviest obligations and are rarely worth it for a typical store.

Choose an approach that keeps card data off your systems. Our ecommerce security checklist covers the other steps that protect your checkout.

Questions to ask providers

1. Which payment methods and countries do you support for my business type and location?
2. What will I pay per transaction, per refund and per chargeback, and are there monthly fees?
3. How long does it take for funds to reach my bank, and when might payouts be held?
4. Do you have an official integration for my platform, and who maintains it?
5. How do you handle strong customer authentication on mobile?
6. What fraud tools are included, and can I adjust the rules?
7. How are disputes handled, and what evidence do you need from me?
8. What support do you offer, and in which time zones?
9. How easily can I export my data and move to another provider?

Using more than one gateway

Many growing stores use more than one provider, for example a main card gateway plus a local method in a particular country, or a separate buy now, pay later service. A second provider can also act as a backup if the main one has an outage. The trade-offs are more contracts, more reconciliation work and a more complex checkout. Keep the customer experience simple: shoppers should see a clear, short list of options, not every provider you work with.

Testing before you commit

Before switching or launching, test the provider on a staging copy of your store:

• Successful payments with each method, on desktop and mobile.
• Declined and failed payments, and the messages shoppers see.
• Strong customer authentication flows.
• Full and partial refunds from your admin.
• Order status updates when payments succeed, fail or are reversed.
• Reports and payout files your finance team will use.

Then place real, small payments on the live store after launch, and refund them, to confirm live keys and settlement work. Keep an eye on approval rates and failed payments for the first few weeks, so any problem is spotted before it costs many orders.

Special cases: subscriptions, B2B and marketplaces

Subscriptions and saved cards

If you sell subscriptions or let customers save cards, check how the provider stores payment details, handles automatic renewals and updates expired cards. Ask how failed renewals are retried and how customers are notified. Moving saved cards between providers later can be complicated, so this choice deserves extra care.

Business customers

Trade buyers often pay by bank transfer or on invoice terms rather than by card. Your store may need to offer payment on account for approved customers, alongside cards for smaller or new accounts. Check that the gateway and your platform can handle both, and that payments reconcile cleanly with your accounting system. Our guide to B2B ecommerce portals explains how credit terms work online.

Marketplaces and split payments

If your store lets other sellers list products, you need a provider that can split payments between sellers and handle their verification. These requirements narrow the field considerably, so raise them early.

Mistakes to avoid

• Choosing only on headline fees. A low percentage can hide high fixed fees, currency margins or chargeback costs.
• Ignoring the mobile experience. Clumsy redirects and authentication screens lose sales on phones. Test on real devices.
• Forgetting finance. Your accounts team must reconcile payouts, fees and refunds. Check the reports before you sign.
• Relying on an unmaintained plugin. An integration that is rarely updated can break after platform updates or fall behind security requirements.
• Not reading the reserve terms. Some providers hold back part of your payouts, especially for new businesses or certain product types. Know the rules in advance.
• Adding every method at once. A long list of payment logos can confuse shoppers. Start with the methods that matter most and add others based on demand.

Revisit your gateway choice every year or two. Your markets, volumes and customer expectations change, and so do providers' prices and features.

Frequently asked questions

Need help choosing or integrating a payment provider? Talk to our team about payments for your markets, or see our Magento 2 GST checkout extension for India-ready invoicing at checkout.