What is a payment service provider, and do you need one?

A payment service provider, or PSP, is a company that lets a business accept card and other electronic payments without assembling the pieces itself. One signup gets you a way to take payments (online checkout, a terminal, a virtual terminal), a gateway that sends them for approval, processing, and deposits to your bank account. You deal with one company, and it deals with the banks and card networks behind it.

The term is loose, and that's where the confusion starts. Some people use it only for all-in-one providers that sign businesses up under their own master account. Others use it for any company that sells merchant services. The card networks' rules use more specific names, such as acquirer, payment facilitator, and independent sales organization, and those roles decide who holds your money, who sets your price, and who can pause your payouts. This guide sorts out the terms, then gets to the practical question: what kind of provider fits your business.

What does a payment service provider do?

A PSP handles everything between your customer's card and your bank account. Depending on the provider, that includes:

• Approving your business, either through full underwriting or a quick signup under its master account.
• Supplying the tools you take payments with: terminals, online checkout, payment links, invoices, and a virtual terminal.
• Running or connecting a gateway that sends each transaction for authorization.
• Handling processing: daily batches, settlement, and monthly statements.
• Depositing your money, either net of fees or with fees billed once a month.
• Supporting the rest: refunds, disputes, reporting, PCI help, and someone to call when something breaks.

Behind every PSP is an acquiring bank, a member of the card networks that settles card sales and carries the risk if a merchant can't cover its chargebacks. You may never talk to that bank, but it's there, and its rules shape what your PSP can offer you.

How is a PSP different from a processor, acquirer, gateway, or payfac?

A PSP is the company you sign with. The processor, acquirer, and gateway are jobs that happen behind it, and a payment facilitator is one specific way a PSP can be set up. This table sorts out who does what.

The network definitions back this up. Visa describes a payment facilitator as a third-party agent that can sign a merchant agreement on an acquirer's behalf and receive settlement funds for the seller, which Visa calls a sponsored merchant. It also says ISOs act as agents of the acquirer and don't process transactions or receive settlement funds themselves, and that a gateway company you sign with directly is classed as a merchant servicer, which you're expected to tell your acquirer about (Visa). Mastercard defines a payment facilitator as a service provider registered by an acquirer to facilitate transactions on behalf of submerchants (Mastercard).

For the two pieces people mix up most, read our guide to what a payment gateway is and our comparison of payment facilitators and merchant accounts.

Is a payment service provider the same as a payment facilitator?

Not always. Every payment facilitator is a kind of PSP, but plenty of PSPs aren't payfacs. They come in two broad models.

The quickest way to tell which model a provider uses is to ask one question: whose merchant ID will my sales run under, and who deposits my money? If the answer is "ours" and "we do," you're looking at a payfac.

Neither model is wrong. A payfac is often the right start for a new or very small business. The dedicated model tends to win once card volume is steady. Visa's guidance even builds in a handoff point: once a sponsored merchant's annual Visa sales pass a set volume, footnoted at US$1,000,000, the payfac must add the acquirer to the merchant agreement (Visa).

How does money move through a payment service provider?

Every card payment goes through three stages, which the Federal Reserve's reports on debit card costs call authorization, clearing, and settlement (Federal Reserve). Here's how a $200 online sale moves under each model.

1. The customer pays, and the PSP's gateway sends the authorization request through the processor and card network to the bank that issued the card.
2. The issuer approves, and the customer's available credit drops by $200.
3. At the day's cutoff, the sale goes out in a batch for clearing.
4. The acquirer settles the funds. In the dedicated model, it deposits them to your bank account. In the payfac model, it deposits them with the payfac.
5. In the payfac model, the payfac then pays you, minus its fees, on its own schedule.

Step 5 is the one that matters when things go wrong. Visa holds the acquirer responsible for the acts of both the payfac and its sponsored merchants (Visa), so a payfac's risk systems react quickly to anything unusual, and your money is already in its hands when they do.

The model also decides who sends your tax form. The IRS says the entity that submits the instructions to transfer funds to your account reports your card sales on Form 1099-K (IRS). With a payfac, that's the payfac.

Are payment service providers regulated?

Yes, mostly through the card networks and the banks that sponsor them. Under Mastercard's definition, a payfac is registered by an acquirer, and Visa holds the acquirer responsible for what the payfac and its sponsored merchants do. When an account is terminated for certain reasons, Mastercard requires the acquirer to add the merchant to its MATCH database, which acquirers must check before approving a new merchant (Mastercard). So a termination at one provider can follow you to the next.

Some countries also regulate PSPs directly. In Canada, the Bank of Canada supervises retail payment service providers under the Retail Payment Activities Act, and it opened the registration period for them in November 2024 (Bank of Canada). If you sell in Canada, it's fair to ask a provider whether it's registered with the Bank of Canada, or why it doesn't need to be.

What does a payment service provider charge?

Every PSP's price is built from the same layers, whatever the bill looks like. Interchange goes to the bank that issued the card, network fees go to the card brands, and the PSP's markup covers everything it does. Visa describes interchange as a transfer between acquiring and issuing banks and notes that merchants don't pay it directly; they pay a merchant discount to their own financial institution, which includes it (Visa).

What changes from one PSP to the next is how those layers are packaged:

• Flat rate: one percentage, sometimes plus a per-sale fee, on every card. Simple, but you pay the same on cheap debit cards as on premium rewards cards.
• Interchange-plus: the actual interchange and network fees passed through, plus a disclosed markup. More lines on the statement, and much easier to compare.
• Tiered: sales sorted into qualified, mid-qualified, and non-qualified buckets that the provider defines. Rarely a good deal.

Then come the extras: monthly account fees, gateway fees, PCI fees, chargeback fees, and early termination fees. Our page on credit card processing fees explains each one, and interchange-plus vs flat-rate pricing walks through when each model costs less.

How do you choose a payment service provider?

Match the provider's model to your volume, your ticket size, and how much a delayed payout would hurt. These decision rules cover most cases:

A food truck in Oklahoma City selling $12 lunches a few days a week is a classic payfac customer. Low fixed costs matter more to it than a lower rate.

A bigger business is a different story. Here's a made-up comparison. Say a catering company in Baltimore processes $45,000 a month across 150 transactions, an average of $300 each.

• On a made-up flat rate of 3% + $0.15: $1,350 + $22.50 = $1,372.50 a month, an effective rate of 3.05%.
• On interchange-plus: say its statements show $1,000 a month in interchange and network fees for its card mix, plus a made-up markup of 0.25% + $0.10 ($112.50 + $15) and a $10 monthly fee. That's $1,137.50, or about 2.53%.
• The difference: $235 a month, or $2,820 a year.

None of those rates are quotes from us or anyone else; they're there to show the math. Run the same comparison with your own statements. Our guide to reading a merchant statement shows where each number lives, and our Clearo vs Square page compares an all-in-one provider with a merchant account.

Questions to ask before you sign with a PSP

• Will I have my own merchant ID, or be a sub-merchant on yours?
• Which acquiring bank sponsors the account?
• Is pricing flat, tiered, or interchange-plus, and can I have every fee in writing?
• When do deposits arrive, and is there a reserve? How is it calculated, and when is it released?
• What's the contract term, and what would leaving cost me?
• Can I export stored cards if I switch providers?
• What do I need to do for PCI compliance, and do you charge a PCI fee?
• Who do I call when a terminal or checkout stops working?

Clearo provides merchant services for US and Canadian businesses with interchange-plus pricing, no long-term contracts, no cancellation fees, same-day or next-day funding options, and a dedicated rep for every client.

Red flags when you compare providers

• An "as low as" rate with no complete fee schedule to back it up.
• Tiered pricing, where it's up to the provider which sales land in the qualified tier.
• A multi-year term with an early termination fee.
• An equipment lease bundled into the application.
• Vague answers about holds, reserves, or funding times.
• No straight answer about which bank stands behind the account.

Your next step

If you're already with a PSP and wondering whether it still fits, your last statement holds the answer. Send it for a free statement review and we'll work out your effective rate and what the same volume would cost on interchange-plus. If your current setup is the better deal, we'll tell you. Choosing your first provider? Contact us and we'll talk it through.