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When you set up card payments, you are really choosing between two models: a traditional merchant account, or a payment facilitator like Stripe, Square or SumUp. Both let you take cards, but they work very differently underneath, and the right one depends on your size, how you sell, and how much you value simplicity over control. This guide makes the choice clear so you do not pay for the wrong model.
In short. A payment facilitator bundles everything into one quick, simple account, ideal for smaller and newer businesses. A dedicated merchant account is more involved to set up but can offer lower rates and more control once your volume is high. Most firms start with a facilitator and review as they grow.
A merchant account is your own dedicated account for taking card payments, provided by an acquiring bank. Funds settle into it before reaching your business bank account. Setting one up involves an application and underwriting, where the provider assesses your business, so it takes longer to get going. In return you get a direct relationship, more control over how payments are handled, and often keener rates once your volume is high enough to negotiate.
A payment facilitator, or PayFac, such as Stripe, Square or SumUp, lets you take payments under its own master account rather than setting up your own. Because the facilitator has already done the heavy lifting with the banks, you can be up and running in minutes, with simple flat rate pricing and little or no underwriting. The trade off is less control, since you operate within the facilitator platform, and at high volume the simple flat rate can work out more expensive than a negotiated merchant rate.
Setup. Facilitator: minutes, minimal checks. Merchant account: an application and underwriting that can take days or weeks.
Pricing. Facilitator: simple flat rate, easy to predict. Merchant account: often lower rates, negotiable as volume grows.
Control. Facilitator: less, you use their platform and rules. Merchant account: more, it is your own account.
Stability. Facilitator: accounts can occasionally be paused for review. Merchant account: a direct relationship, usually more predictable at scale.
Best for. Facilitator: smaller or newer firms and variable volumes. Merchant account: established, higher volume businesses.
✓ Choose a facilitator if you want to start fast, keep it simple, or process modest or variable volumes.
✓ Choose a merchant account if you process high volumes and want the keenest rates and more control.
✓ Consider a merchant account once your monthly processing is large enough that a lower rate outweighs the extra admin.
✗ Do not assume flat rate is always cheapest. At scale, a negotiated merchant rate often wins.
✗ Do not over engineer it. A small business rarely needs a full merchant account on day one.
The key question is when the maths flips. Facilitators are usually cheaper and simpler at low volume, because you avoid monthly fees and long setup. As your card takings grow, the flat rate you pay on every sale starts to exceed what you could negotiate on a dedicated merchant account, and the extra admin of a merchant account becomes worth it. There is no single figure at which this happens, because it depends on your rate, your card mix and any monthly fees, but it is worth recalculating whenever your volume steps up meaningfully.
Most small businesses start with a facilitator for speed and simplicity, then review the maths as volume grows. The point to switch is when your processing is large enough that a lower negotiated rate clearly outweighs the extra admin.
Whichever model you lean towards, look past the headline rate at the full cost. Add up transaction fees, any monthly or minimum charges, hardware, settlement times and contract length, then judge them against your real card takings. A simple flat rate with no monthly fee can beat a lower rate loaded with extras at small scale, and the reverse can be true at volume. The right answer is the one that costs least across your actual pattern of sales, not the one with the lowest advertised percentage.
Price is not the only thing that separates the two models. A payment facilitator is quick and cheap to start, but because you operate under a shared master account, accounts can occasionally be paused for review if activity looks unusual, which can interrupt your takings at the worst moment. A dedicated merchant account, with its direct relationship and underwriting, tends to be more predictable at scale, and often comes with more hands on support. For a business where a payment outage would be serious, that reliability can matter as much as the rate. It is worth asking any provider how disputes and account reviews are handled before you sign, so a surprise does not catch you out later. The cheapest option is no bargain if it leaves you unable to take money on a busy day.
Not in the traditional sense. They are payment facilitators, letting you take payments under their master account rather than setting up your own dedicated merchant account.
It depends on volume. Facilitators are often cheaper and simpler for smaller businesses, while a negotiated merchant account can be cheaper at high volume.
Yes. Many businesses start with a facilitator and move to a merchant account as they grow, once the lower rate justifies the extra setup.
No. A payment facilitator lets you take cards without your own merchant account, which is why so many small firms start there.
They can occasionally be paused for review, since you operate under a shared master account. A dedicated merchant account offers a more direct, predictable relationship at scale.