PSP vs Acquirer: What's the Difference?

The PSP provides the technology and the commercial relationship; the acquirer holds the scheme licence, underwrites your business and settles your money. Many merchants need both, sometimes bundled by one provider, sometimes contracted separately.

Side by side

Checkout, tokenisation and reporting: PSP.
Scheme licence and merchant account: acquirer.
Underwriting decision, limits and reserves: acquirer.
Fraud tooling and routing logic: usually PSP.
Settlement of funds to your bank: acquirer, often paid out via the PSP.
Chargeback liability: acquirer, with the merchant ultimately responsible.

Bundled or separate?

One provider for both

Simplest to run: one contract, one integration, one support channel. The trade-off is concentration, if that relationship ends, both your checkout and your acquiring stop at once.

PSP plus one or more acquirers

More work to set up, but you can route by market or card type, compare acquiring costs and keep processing if one account is reviewed. This is the normal structure for higher-risk or multi-market merchants.

Which question should you ask first?

Ask whether the acquirer behind the offer accepts your industry, your countries and your volume band. A PSP can look ideal on features and still be unusable because its acquiring partner will not underwrite your profile.

What is a PSP?

A payment service provider is the company that connects your checkout to the card schemes and local payment methods, submits transactions for authorisation, and reports on them. Some PSPs also hold the acquiring licence; many route your transactions to a separate acquiring bank.

What is an acquirer?

An acquiring bank is licensed by the card schemes to accept card transactions on your behalf, holds your merchant account, and settles the funds to your bank. It also carries the financial risk if you cannot refund your customers, which is why the acquirer, not the gateway, decides whether you are accepted.

What is a merchant account?

A merchant account is an account held with an acquiring bank that allows you to accept card payments and receive settlement. It is not a business bank account: funds pass through it, are netted against refunds, fees and any reserve, and are then paid out to your ordinary bank account.

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Add your business essentials once and see which PSPs and acquirers match your profile before applying.

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Nothing is shared with a provider until you submit your onboarding pack. Approval is always the provider's decision.