Payment Service Provider

A Payment Service Provider (PSP) is a company that processes online payments for your online shop or platform. The PSP ensures that a customer can pay securely via iDEAL, credit card, Bancontact or other payment methods, and that the money is then transferred to your business account. You do not need to enter into contracts with banks or credit card companies yourself. The PSP handles the technical integration, security, fraud detection and administrative processing all in one package.

How a Payment Service Provider handles the payment flow

When a customer clicks the payment button in your online shop, the PSP redirects them to a secure payment environment. There, the customer selects a payment method and completes the payment. The PSP checks whether the funds are available, carries out any fraud checks and sends a confirmation back to your online shop within a few seconds. As soon as the payment is successful, the customer receives an order confirmation and you receive a notification. The money is then credited to your account, often within one to three working days. The PSP deducts a transaction fee, usually a fixed amount per transaction plus a percentage of the order total.

Why companies work with a Payment Service Provider

Before the emergence of PSPs, an online shop had to negotiate contracts, technical integrations and compliance requirements separately with every bank and credit card company. This was time-consuming, expensive and technically complex. A PSP bundles all these arrangements and provides a single API through which you can offer dozens of payment methods. In addition, PSPs take responsibility for PCI-DSS compliance – a set of security rules for credit card payments – and for the administrative processing of refunds and chargebacks. For small and medium-sized companies, this is a huge relief: you can have a professional payment solution up and running within a few days without needing in-house legal or technical expertise.

What a Payment Service Provider offers your online shop

With a PSP, you offer customers a wide range of payment methods, from iDEAL and credit cards to Klarna and Apple Pay. This boosts conversion rates: customers are less likely to abandon their purchase if their preferred method is available. In addition, a good PSP features fraud detection based on machine learning, which blocks high-risk transactions before they cost you money. Most PSPs also provide reports and dashboards where you can track transactions, refunds and turnover in real time. When having an online shop built, choosing a reliable PSP is one of the first technical decisions you’ll make. In practice, we see with SME clients that a well-chosen PSP makes the difference between a smooth checkout process and a shopping basket full of abandoned payments.

A Payment Service Provider (PSP) is used in virtually any situation where you wish to accept online payments. Think of online shops, but also platforms for ticket sales, subscriptions, donations or B2B invoicing. Below are four specific situations in which a PSP proves its worth, plus a clear overview of when a PSP is or isn’t the right choice.

Online shop with multiple payment methods and international customers

An online shop selling in the United Kingdom as well as in Belgium, Germany or France has to deal with different payment preferences in each country. Dutch customers overwhelmingly choose iDEAL, Belgians prefer Bancontact, and Germans opt for Sofort or credit cards. A payment service provider (PSP) such as Adyen or Mollie offers all these methods in a single integration. This means you don’t need to connect a separate payment provider for each country. In addition, the PSP handles currency conversion and complies with local regulations such as PSD2. In practice, we see that for online shops with international ambitions, a PSP offering a wide range of payment methods can increase conversion rates by 10 to 20 per cent, simply because customers are able to find their preferred payment option.

Subscriptions and recurring payments

Companies that operate on a monthly subscription basis, such as SaaS platforms, gyms or trade journals, require direct debit facilities. A PSP that supports recurring payments securely stores a customer’s payment details and automatically collects the subscription fee each month. If a payment fails, the PSP sends a retry request and your system can automatically alert the customer. This reduces manual work and increases retention. For B2B service providers wishing to collect invoices digitally, some PSPs also offer SEPA Direct Debit, which allows you to debit funds directly from a business bank account. This reduces the administrative burden and shortens the payment term from 30 days to just a few working days.

Marketplaces and platforms with split payments

A marketplace or platform on which multiple sellers offer their products has to deal with a complex cash flow: the customer pays the platform, but part of the amount must be forwarded to the seller. Payment service providers (PSPs) such as Stripe and Adyen offer split payment functionality, whereby you automatically distribute the funds across multiple recipients in a single transaction. This eliminates the need for manual payments and makes financial administration much simpler. For platforms with hundreds of sellers, this is a critical function. Combined with a bespoke web application, you can set up the entire cash flow in an automated and transparent manner.

When a Payment Service Provider is the right choice and when it isn’t

A PSP is the right choice if you want to get started quickly, offer multiple payment methods and do not have your own technical team to build payment infrastructure. For online shops with a turnover of up to several hundred thousand per month, a PSP’s transaction costs are acceptable and the convenience outweighs the costs. A PSP is less suitable if you handle extremely high volumes and have very low margins: in that case, the transaction costs can eat into a significant portion of your profit. In such circumstances, a direct bank connection or your own acquiring contract may be cheaper. Similarly, if you are dealing with very specific compliance requirements or niche payment methods that no PSP supports, you will need to look into bespoke solutions.