PAX A77 vs Square Terminal: Which UK Card Machine Wins in 2026?
PAX A77 and Square Terminal are both credible UK card-acceptance choices in 2026; the right one depends on your monthly card volume, sector and the ecosystem you already sit inside. PAX A77 runs Acquirer-dependent on a typically 12 to 36 months via the acquirer / iso contract; Square Terminal runs 1.75% per transaction (UK) on a no-contract basis. PAX A77 fits mobile traders via iso / broker best, while Square Terminal fits independent retail. Read both columns of the side-by-side, then the "when X wins" sections below for the buyer-fit logic. If you want us to do the work, the quote form takes two minutes and gets you matched against our 50+ UK acquirer panel.
Side-by-side
Full reviews: PAX A77 · Square Terminal
| PAX A77 | Square Terminal | |
|---|---|---|
| Manufacturer | PAX Technology | Square |
| Acquirer | Multiple (UK ISOs and acquirers including Take Payments, Paymentsense and others distribute PAX hardware) | Square |
| Form factor | Compact Android-based handheld smart terminal (no built-in printer; companion to the A920 Pro) | All-in-one countertop terminal with receipt printer |
| Connectivity | WiFi, 4G, Bluetooth | WiFi, 4G (mid-tier hardware), Bluetooth |
| Upfront cost | Bundled with merchant account (rental typical) | £149 to £199 |
| Rate | Acquirer-dependent | 1.75% per transaction (UK) |
| Contract length | Typically 12 to 36 months via the acquirer / ISO | No contract |
| Best for | Mobile traders via ISO / broker; Counter-side acceptance where digital receipts are fine; Acquirer-bundled deployments wanting cheaper hardware than A920 Pro | Independent retail; Cafés and small hospitality; Square ecosystem users |
| Last reviewed | 2026-05-10 | 2026-04-26 |
When PAX A77 wins
- Android platform supports acquirer customisation and third-party apps.
- Compact form factor; lighter and cheaper than the A920 Pro.
- Multi-network connectivity reduces downtime.
- Widely supported across UK ISO channel.
Best for
Mobile traders via ISO / broker, Counter-side acceptance where digital receipts are fine, Acquirer-bundled deployments wanting cheaper hardware than A920 Pro.
Watch outs
- Almost always rented (not bought), lock-in via acquirer contract.
- No built-in receipt printer.
- Performance and software experience depends entirely on the acquirer's app.
When Square Terminal wins
- Strong POS app and reporting.
- No contract, no monthly fee for hardware.
- Tight integration with Square ecosystem.
- Receipt printer built in.
Best for
Independent retail, Cafés and small hospitality, Square ecosystem users.
Watch outs
- 1.75% UK rate is high vs Dojo blended.
- Hardware lifecycle slower than competitors.
- Settlement is next-day standard.
FAQ
PAX A77 or Square Terminal: which is the better UK card machine in 2026?
There is no single winner; it depends on what you trade. PAX A77 is the stronger pick for mobile traders via iso / broker, while Square Terminal is the stronger pick for independent retail. Match the one whose best-fit use case is closest to your business, then sense-check the rate and contract in the table above.
What does each contract look like, PAX A77 vs Square Terminal?
PAX A77 runs on a typically 12 to 36 months via the acquirer / iso contract. Square Terminal runs on a no-contract basis. Headline transaction rates are Acquirer-dependent for PAX A77 and 1.75% per transaction (UK) for Square Terminal. Hardware cost on PAX A77 is bundled with merchant account (rental typical); on Square Terminal it is £149 to £199. Always verify the live commercials before signing because acquirer pricing moves and bespoke rates are common above £20k monthly volume.
Which is weakest for what?
PAX A77 is the wrong answer for no-contract economics. Square Terminal is the wrong answer for £20k+ monthly volume. If either of those describes your business, look at the side-by-side table for the alternative, or get a quote from our 50+ UK acquirer panel and we will surface the right shortlist.
Can MerchantHQ help me choose between PAX A77 and Square Terminal?
Yes. We are not tied to either acquirer. Our 50+ UK acquirer panel covers every major fintech and bank acquirer in the country. Tell us monthly card volume, sector and any ecosystem you are already inside (Stripe online, PayPal, Tide Business banking, NatWest banking). We match you against the providers most likely to approve and beat your current rate, then stay your named account team for the life of the account.
Related comparisons
Other UK card machine head-to-heads involving PAX A77 or Square Terminal:
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Get quotes →Reviewed by Oliver Mackman, Director, Best Business Loans Ltd. Last reviewed: 2026-05-10. Editorial by Best Business Loans Ltd (16833937).