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Payment service providers explained: How to choose the right one
A payment service provider (PSP) lets businesses accept customer payments and bundles the gateway, fraud prevention, processing and compliance into one integration. The right PSP helps support growth through payment-method coverage, security, customer experience and scalability.
June 19, 2026 | 6 mins read
Choosing a payment service provider (PSP) is an important decision for an online business. It determines which payment methods you can accept, how secure transactions are, and how easily you can scale. The e-commerce landscape is booming, with global sales projected to hit US$4.12 trillion in 2024 and anticipated to climb to $6.48 trillion by 2029. In the United States and Europe, nine out of ten consumers have made a digital payment over the past year. As more consumers embrace online shopping, merchants need to adapt to this digital shift.
Part of this is understanding PSPs and how to choose the best one for your business.
What is a payment service provider?
A payment service provider is a company that provides services allowing businesses to accept transactions from customers. Acting as an intermediary between merchants, banks and customers, they enable a wide range of online payment methods including credit card payments, debit cards, digital wallets, mobile payments, bank transfers and Buy Now, Pay Later, through one integration. A PSP differs from a standalone payment gateway (which only transmits and encrypts payment data) and a payment processor (which authorises and moves the funds) by combining both — plus fraud prevention, compliance and reporting — into a single contract and integration.
How do payment service providers work?
When a customer makes a purchase online, the PSP manages the entire payment process to ensure a seamless transaction. The typical steps include:
Step 1
Step 2
Step 3
Payment authorisation: the customer selects a payment method and enters their details, and the PSP securely transmits this to the acquiring bank and financial networks to request authorisation.
Transaction processing: once authorised, the PSP communicates with the issuing bank to transfer funds from the customer's account to the merchant's account.
Settlement: after processing, the PSP ensures the funds are settled and deposited into the merchant's account, usually within 1–3 business days.
What do payment service providers do?
PSPs don't just facilitate payments – they offer a suite of services that streamline and secure the transaction. Beyond moving money, a PSP typically provides five categories of service:
Payment gateway services
Security and fraud prevention
Global payment processing
Reporting and analytics
Compliance and regulatory adherence
- Streamline payments between customers, banks and merchants
- Integrate with e-commerce platforms
- Protect payment data with encryption and tokenisation
- Monitor transactions to detect and prevent fraud
- Support payments in various currencies for international sales
- Manage currency exchange so payments are converted and settled in merchant's preferred currency
- Provide detailed reports on sales, refunds and chargebacks for a clear view of financial activities
- Analyses purchasing patterns and customer preferences
- Comply with anti-money laundering and counter-terrorist financing regulations
- Ensure compliance with laws and standards like GDPR and PCI DSS
Payment methods offered by payment service providers
Providing customers with their preferred payment method goes a long way in enhancing their shopping experience. When customers can choose their preferred payment option, they're 54% more likely to complete a purchase, leading to higher conversion rates and reducing cart abandonment. Conversely, almost 1 in 10 consumers cited a lack of payment methods as their reason for not finalising their purchase.
In addition to boosting conversion rates, accommodating diverse payment preferences can expand your customer base and increase customer loyalty. 44% of consumers are more likely to trust a business if they have a robust payment process with their preferred payment method.
- Credit cards: Allows purchases on credit, payable at a later date. Popular credit card networks include Mastercard, Visa and American Express
- Debit cards: Directly deducts funds from the consumer's bank account
- Bank transfers: Electronic transfer of funds between the customer's and merchant's bank accounts
- Direct debit: Authorises businesses to withdraw funds from customer accounts
- Digital wallets: Store payment information for online and in-store purchases. Popular wallets include Alipay, AlipayHK, GCash, DANA, TrueMoney, Touch 'n Go, Kakao Pay, Apple Pay and Google Pay.
- Mobile payments: Transactions made via smartphones using payment apps
- Cryptocurrencies: Digital currencies like Bitcoin used for online transactions
- BNPL: Allows deferred payments in instalments for purchases
- Prepaid cards: Preloaded cards used for payments until the balance is exhausted
Benefits of using a PSP
On a basic level, a PSP lets you focus on your business by taking care of the entire payment process. But partnering with a payment service provider offers other advantages too, from reaching more customers around the world to streamlining your business operations. Here's a breakdown of the key benefits.
- Simplified setup and integrationPSPs provide user-friendly APIs and integration tools, plus simplified onboarding, so you can quickly incorporate payment processes in your websites or applications. This efficiency eliminates the need for separate merchant service accounts and payment gateways, or the paperwork typically associated with traditional merchant account providers.
- Access to multiple payment methodsBy consolidating various payment methods into a single platform, you can accept credit and debit cards, digital wallets, bank transfers and more. This versatility caters to diverse customer preferences, while reducing overheads from multiple platforms.
- Improved customer experienceBy supporting a variety of payment options and ensuring quick, secure transactions, PSPs contribute to a positive customer experience, leading to loyalty and repeat business.
- Expanded global reachEngage with international customers seamlessly by accepting different currencies and region-specific payment methods. Entry into new markets becomes easier and broadens your customer base.
- Integration with business toolsPSPs can integrate with various business tools such as accounting software, CRM systems, and inventory management platforms, streamlining operations and providing a holistic view of business performance.
- Enhanced security and compliancePSPs must adhere to industry standards and regulations, such as the Payment Card Industry Data Security Standard (PCI DSS) Level 1, 3D Secure 2 for PSD2/SCA in the UK and EU, ensuring secure transaction processing. This compliance reduces the burden on you to maintain stringent security measures independently.
- Advanced fraud detection and preventionUsing sophisticated tools and real-time monitoring, PSPs detect and prevent fraudulent activities, safeguarding your business from potential financial losses and maintaining customer trust.
- Comprehensive reporting and analyticsPSPs offer detailed insights into transactions and customer behaviour through reporting tools. These analytics assist businesses in making informed decisions and optimising online payments.
- Scalability to support business growthPSPs are designed for businesses of all sizes, from startups to multinational enterprises. With features that scale as you do, this flexibility means that as your business expands, your payment processing capabilities can seamlessly adapt without requiring a change in providers.
- Dedicated customer supportYou should expect responsive customer service from your PSP, to address any issues or questions that arise during payment processing. This support is invaluable, especially for small businesses that may lack in-house payment processing expertise.
- Cost-effective solutionsOften with competitive pricing models, including flat-rate fees and minimal upfront costs, PSPs may be an economical choice for small to medium-sized businesses.
How to choose the right payment service provider
Selecting the right payment service provider directly influences your transaction efficiency, customer satisfaction and overall growth. Consider the potential disruption and costs if you select a PSP for your current business stage but outgrow it within a few years.
This could lead to operational challenges, such as system limitations that hinder transaction processing, and may require a time-consuming and costly transition to a more suitable provider. Or, if your PSP lacks strong security measures, your business may become vulnerable to data breaches, leading to financial losses and reputational damage.
1. Assess your business needs
Begin by evaluating your specific requirements, both now and in the future. You'll want a PSP that can grow with your business.
- Payment methods: Identify the options your customers prefer, whether that's card, wallet or BNPL. Ensure the PSP supports these methods.
- Transaction volume: Consider your current and projected sales volumes to find a PSP that can handle your business scale.
- Target markets: If you operate or plan to expand internationally, choose a PSP that supports multiple currencies and is available in your target regions, for example, a PSP that supports local wallets in the APAC region such as Alipay, AlipayHK, GCash, DANA, TrueMoney, Touch 'n Go, Kakao Pay.
- Payment options: Consider the billing options that align with your business model. If you operate on a subscription model, you'll want to offer subscription payments. Other options like scan to link and auto debit can reduce friction and raise conversion rates.
2. Evaluate security and compliance
With 43% of e-commerce consumers having experienced payment fraud, security is vital in payment processing.
- PCI DSS compliance: The PSP must comply with the Payment Card Industry Data Security Standard to protect sensitive data.
- Fraud prevention: Look for advanced fraud detection and prevention tools to safeguard your sales.
3. Analyse fees and pricing structures
Understanding payment processing fees and choosing the right structure will directly impact your profit margins; choosing a cost-effective payment processor is essential.
- Transaction fees: Compare per-transaction charges among PSPs
- Additional costs: Be aware of setup fees, monthly fees, chargeback fees, and any hidden costs.
4. Consider integration and technical support
If you don't have a large development team in-house, you'll be relying on the PSP to resolve many of your issues.
- Compatibility: Make sure the PSP integrates smoothly with your existing systems, such as your website, shopping cart, or accounting software.
- Developer resources: Are there comprehensive APIs and documentation to simplify integration?
- Customer support: Prompt, reliable support is essential if any problems arise.
5. Review reporting and analytics
Data insights can drive business decisions.
- Transaction reports: Look for detailed reporting features that provide insights into sales, customer behaviour, and payment trends.
- Dashboard interface: A user-friendly dashboard can simplify financial management.
6. Test user experience
The payment process should be seamless for customers.
- Checkout process: Evaluate the ease and speed of the checkout experience; more than one in five consumers listed long or complicated checkout processes as the reason for cart abandonment.
- Mobile optimisation: With the rise of mobile commerce, the payment process needs to be optimised for mobile devices.
PSP vs Payment gateway vs Payment processor
Payment Service Provider (PSP)
Payment Gateway
Payment Processor
What it is
An end-to-end payment partner that lets businesses accept multiple payment methods through one integration
The technology layer that securely captures, encrypts and transmits customer payment data from checkout to the relevant financial institutions
The financial infrastructure provider that handles the authorisation and movement of funds between banks
What it does
Combines payment gateway services, payment processing, fraud prevention, compliance support, settlement, reporting and analytics. PSPs can support cards, digital wallets, mobile payments, bank transfers, BNPL and local payment methods across multiple markets
Connects your website, app or checkout page to the payment networks. It helps authorise payments by securely sending transaction details between the customer, merchant, acquiring bank and issuing bank
Communicates with card networks, acquiring banks and issuing banks to approve or decline transactions, process payments, manage settlement and move funds into the merchant account
What you contract for
A single payment solution and contract that typically covers access to multiple payment methods, transaction processing, security tools, compliance features, reporting and merchant support
The gateway technology used to accept and transmit payment information. In many cases, you still need a separate payment processor, acquiring bank or merchant account
Payment processing services, including authorisation, clearing and settlement. Depending on the setup, you may also need a separate gateway, merchant account, fraud tools and reporting systems
For many online businesses, a PSP can be the simplest option because it brings these payment functions together. Instead of managing separate contracts and integrations for a gateway, processor, fraud tools and compliance support, merchants can use one provider to streamline payment acceptance and scale into new markets more easily.
Expand your business with Antom's payment solutions
The right payment service provider can streamline payments, reduce costs and support your business growth. At Antom, we provide seamless integration with over 100 currencies and 300+ payment methods across 40+ markets, including cards (Visa, Mastercard, Amex) and the major APAC wallets (Alipay, AlipayHK, GCash, DANA, TrueMoney, Touch 'n Go, Kakao Pay).
Our customisable online checkout supports digital wallets, mobile wallets, online banking, cards, over-the-counter (OTC) payments, and national gateways, ensuring you can accept global payment methods effortlessly. Additionally, we offer subscription payments and auto debit features, ideal for merchants with recurring billing needs.
Contact us today to find out how we can support your business.
Payment service provider FAQs
- What is a payment service provider?A payment service provider, or PSP, is a company that enables businesses to accept customer payments online and, in some cases, in store. It acts as an intermediary between merchants, customers, banks and payment networks. A PSP typically supports multiple payment methods, including credit cards, debit cards, digital wallets, mobile payments, bank transfers, Buy Now, Pay Later and local payment methods.
- How is a PSP different from a payment gateway?A payment gateway is the technology that securely captures and transmits payment data during checkout. A PSP is broader. It usually includes gateway functionality as well as payment processing, fraud prevention, compliance support, settlement, reporting and access to multiple payment methods through a single integration.
- Why do businesses use payment service providers?Businesses use PSPs to simplify payment acceptance, reduce technical complexity and offer customers more ways to pay. A PSP can help improve checkout experience, support international sales, strengthen fraud prevention, simplify compliance and provide reporting on transactions, refunds and chargebacks. For growing businesses, a PSP can also make it easier to scale into new markets and currencies.
- What payment methods can a PSP support?A PSP can support a wide range of payment methods, depending on the provider and target markets. These may include credit and debit cards, bank transfers, direct debit, digital wallets – for example, local wallets in the APAC region such as Alipay, AlipayHK, GCash, DANA, TrueMoney, Touch 'n Go, Kakao Pay - mobile wallets, prepaid cards, cryptocurrencies and BNPL options. Some PSPs also support local payment methods, such as regional e-wallets and national payment schemes, which can help merchants increase conversion in specific markets.
- How do I choose the right payment service provider?To choose the right PSP, assess your business needs, target markets, preferred payment methods, transaction volume and future growth plans. You should also compare pricing, security standards, PCI DSS compliance, fraud prevention tools, integration options, reporting features and customer support. If you sell internationally, choose a PSP that supports multiple currencies, local payment methods and scalable payment infrastructure.