Best card machine for low monthly volume UK 2026
Compare the UK shortlist below, then get matched quotes from the acquirers most likely to approve you and beat your current pricing.
For UK merchants doing under £5,000 monthly card volume. Sole traders, market stalls, weekend market sellers, occasional traders, side-businesses, just-launched startups. The right card machine is no-monthly-fee, no-contract, pay-as-you-go, low hardware cost. Anything else over-charges you.
Based on MerchantHQ terminal reviews and our ranking methodology.
The ranking
Ranked on fit for this use case. The score beside each pick is that terminal's overall review score across all uses, so a lower-scored terminal can rank higher here when it suits this job better. The rate, hardware and contract lines come from the same terminal data as the comparison table below.
1. SumUp Solo
Review score 4.2 / 5Best overall low-volume
Portable standalone touchscreen terminal (no built-in printer; Solo Lite is the cheaper phone-paired version) · 1.69% per transaction · No contract
SumUp Solo at £79 + VAT with 1.69% per transaction wins on low-volume because there is no monthly fee. At £2,000 monthly volume the blended cost is £34/month total. Compare to a Worldpay contract at 0.6% + £20 monthly fee, which would cost £32/month at the same volume but lock you into 36 months.
2. Zettle Reader 2
Review score 4.0 / 5Best entry-level low-volume
Compact card reader (pairs with phone or tablet) · 1.75% per transaction · No contract
Zettle Reader 2 at £29 to £69 hardware with 1.75% per transaction. Cheapest UK upfront cost. No monthly fee, no contract. Best fit for occasional traders, weekend markets, just-launched testers who do not know their volume yet.
3. Tap to Pay on iPhone (no terminal)
Review score 4.2 / 5Best zero-hardware low-volume
Software on an iPhone Xs or later, no separate terminal · Set by the provider you use it with; see that provider's own pricing page · No fixed term for the feature itself; any contract is with your provider
Tap to Pay on iPhone removes the hardware cost entirely. Zero upfront, no monthly fee, pick a no-contract acquirer. Best fit for low-volume mobile traders who already own a recent iPhone.
4. Square Terminal
Review score 4.1 / 5Best all-in-one low-volume
All-in-one countertop terminal with receipt printer · 1.75% per transaction (UK) · No contract
Square Terminal at £149 + VAT with 1.75% per transaction. No monthly fee, built-in printer, full POS. Worth the higher hardware cost if you want one device that runs the whole counter.
Quick comparison
Headline rate, hardware cost, contract and form factor at a glance.
| Rank | Terminal | Rate | Hardware | Contract |
|---|---|---|---|---|
| #1 | SumUp Solo | 1.69% per transaction | £79 + VAT list price (SumUp often discounts it) | No contract |
| #2 | Zettle Reader 2 | 1.75% per transaction | £29 first reader, £69 each extra (ex VAT) | No contract |
| #3 | Tap to Pay on iPhone (no terminal) | Set by the provider you use it with; see that provider's own pricing page | £0 hardware (you already have the iPhone) | No fixed term for the feature itself; any contract is with your provider |
| #4 | Square Terminal | 1.75% per transaction (UK) | £149 + VAT | No contract |
FAQs
What is the best card machine for a low-volume UK business?
SumUp Solo at £79 + VAT with 1.69% per transaction and no monthly fee is the strongest low-volume pick in 2026. For occasional or seasonal traders below £1,000 monthly volume, Zettle Reader 2 at £29 to £69 is cheaper upfront. Tap to Pay on iPhone removes the hardware cost entirely if you own a compatible iPhone.
Should a low-volume merchant pay a monthly fee for a card machine?
No. At sub-£5,000 monthly card volume, the monthly fee almost always over-charges. A £20/month fee plus a "good" 0.5% rate costs more in total than 1.69% on no monthly fee. Pay-as-you-go pricing wins until volume justifies the fixed cost.
Can I move to a contract acquirer if my volume grows?
Yes. A contract acquirer (Dojo, Worldpay, Tyl) usually starts to make sense once your monthly card volume crosses about £10,000 to £15,000. Our switching guide at /switching-help/ covers how to move without a gap in taking payments. The right card machine changes with volume.
Are no-monthly-fee card machines slower or worse?
No. SumUp Solo, Square Terminal, Zettle Reader 2 and Tap to Pay on iPhone all run on the same Visa and Mastercard rails as the contract products. Speed of authorisation is identical. The trade-off is per-transaction rate, not technical reliability.
How we rank
Rankings are built by desk research from each provider's published rates, upfront costs, contract lengths and settlement terms, held in a dated record per terminal (last-reviewed date shown on this page) and re-checked when published pricing changes. We do not hands-on test every device; specs are taken from provider documentation and cited. No provider pays for inclusion or position. MerchantHQ is an introducer. Quote enquiries go to one card-payments broker, Merchant Advice Service, which pays us a fee for each introduction; acquirers do not pay us commission on quote enquiries. That fee never affects a ranking. See our methodology and how we are funded.
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