Square vs Worldpay, scale against a price list.

The short answer

For most small businesses, Square. Not because Worldpay is bad, but because Worldpay is not built for this comparison.

Worldpay is one of the largest payment processors in the world, operating at a scale where the customers that matter to it are enterprises, platforms and financial institutions. Its small-business page carries no rates, no fees and no terms, and invites you to talk to sales.

Square publishes 2.6% + 15¢ in person, 3.5% + 15¢ keyed and 3.3% + 30¢ online on a free plan with no monthly fee and no contract, plus paid tiers at $49 and $149 a month per location.

For a shop doing $20,000 a month, the useful question is not which processor is more capable. It is whether you want to run a procurement exercise or read a price list. Most small merchants are better served by the price list — and by an ISO who will quote them interchange-plus in writing if their volume justifies it, which is a third option this comparison keeps pointing at.

Publish a rateSquare, Stripe, PayPal, Shopify, SumUp, Helcim, Stax, Dharma, SpotOn, Chase48%

Publish partlyClover, direct purchase only5%

Publish nothingToast, Lightspeed, NRS, CardConnect, Payarc, Maverick, Elavon, Worldpay, Global Payments, Heartland48%

Published pricing, side by side

Square: squareup.com — read 2026-10-08. Worldpay: www.worldpay.com — read 2026-10-08.

Published prices change. These were read on the dates above and are list prices for a business buying direct — a quote you are given may differ, and should be compared as a quote rather than against a price list.

Square, also published:

• ACH via invoice 1%, $1 minimum
• Afterpay 6% + 30¢
• EBT 1.8% + 5¢
• Custom pricing available above $250,000 a year

Worldpay, also published:

• No figures of any kind on the small-business page; the call to action is to get a quote

Where they actually differ

Scale, and who it serves. Worldpay’s strength is global reach, enterprise infrastructure, and the ability to handle very large and very complex payment operations. None of that is a benefit to a single-location business, and some of it is a cost in the form of process.

What you can know in advance. Square: everything, in two minutes. Worldpay: nothing, until a salesperson quotes you.

The account. Square is an aggregator and you are a sub-merchant. A Worldpay account is an underwritten merchant account. That difference matters when something goes wrong — and the same benefit is available from any conventional merchant account provider, not only from a company of Worldpay’s size. Merchant account versus aggregator.

The contract. Square states no contract and no termination fee. Worldpay publishes no term. Enterprise-oriented processors commonly use multi-year agreements with liquidated damages clauses, which are the most expensive kind of exit cost there is, so ask directly. Agreement red flags.

Support. Square has a help centre and support channels. A large processor account usually has an account team, which is valuable at scale and sometimes thin at the small-business end of a very large portfolio.

Software. Square’s business platform — inventory, staff, reporting, invoicing, appointments — has no equivalent in a conventional processing relationship. If you need operational tooling, that is a separate reason to choose Square independent of the rate.

Who each one suits

Square suits essentially any single-location small business that wants to start quickly, know its price, and avoid a procurement process.

Worldpay suits an enterprise, a platform embedding payments, a multinational, or a business whose payment requirements are genuinely complex enough to need that scale.

Neither is the obvious answer for a mid-sized business. A shop doing $60,000 a month is past the point where a flat rate is good value and below the point where Worldpay’s scale is relevant. That business is best served by interchange-plus through its own underwritten merchant account, quoted in writing, with hardware bought outright and no term. That is a third option, and it is usually the right one at that volume.

What the comparison does not show

Not publishing a rate is normal, not sinister. Almost every traditional processor quotes rather than publishes, because the rate depends on your volume, your card mix, your category and your risk profile. The thing to insist on is that the quote is complete and in writing.

The question to ask any quoted provider is for the markup over interchange as a number, the per-item, every monthly fee named, the PCI arrangement, the term, the exit terms, whether hardware is bought or leased, and the funding timetable. Comparing two quotes properly.

Watch for liquidated damages rather than a flat termination fee. A formula based on your average monthly fees times the months remaining can run into thousands. Early termination fees.

Square’s flat rate is an average. It charges the same for a plain debit card and a premium rewards card, so whether it is good value depends on your card mix. What rewards cards cost.

How to settle it with your own numbers

Half of this comparison cannot be done from a web page, because Worldpay publishes no rate. So the comparison has to happen on your own numbers instead, and the figure that makes it possible is your effective rate: total fees for a month divided by total card volume for that month.

Get the Worldpay quote in writing, with the markup as a number, the per-item, and every monthly fee named individually. Apply all of it to your own volume, your own average ticket and your own card mix, add the monthly fees, and divide by volume. That single number is the only thing comparable to Square’s published figures — or to anybody else’s. A quote that cannot be reduced to it is not a quote.

Comparing two quotes is the full method for an unpublished rate, and the calculator does the arithmetic once you have the figures.

What we charge

Interchange + 0.50% + 10¢ in person, interchange + 0.75% + 25¢ keyed, with no contract, no monthly fee and no monthly minimum.

If you are holding a quote from Worldpay, send it to us with one page of a statement. We will reduce the quote to an effective rate at your own volume and put it next to Square’s published figures and ours, so you are comparing three numbers of the same kind instead of a price list against a sales conversation.

While we are on the subject

What does Worldpay charge?

It publishes no rates or fees. Pricing comes through a sales conversation and depends on your volume, category and risk profile.

Is Worldpay suitable for a small business?

It serves small businesses, but its strengths are enterprise scale and global reach, which are not benefits at a single counter. Most small merchants do better with a published price or a local ISO quote.

Should I be worried that there is no published price?

No — most traditional processors quote rather than publish. What matters is that the quote is complete, in writing, and reducible to an effective rate.

What is the third option?

Interchange-plus through your own underwritten merchant account, quoted in writing, with hardware bought outright and no contract. For a business past flat-rate volume, that usually beats both sides of this comparison.