Payment Processing for Market Traders at a Glance
Market traders work in conditions that fixed-premises retailers never have to think about: no guaranteed Wi-Fi, no reliable power, and trading days that can run from 6am to 4pm. The wrong reader fails mid-Saturday, with a queue forming and a customer’s card in their hand. We compared the readers traders actually rely on against that test, and the ones below are portable, affordable, and keep working without a Wi-Fi connection.
- SumUp Solo Lite: Best overall for most market traders
- SumUp Solo: Best without a smartphone
- Square Reader: Cheapest hardware to get started
- PayPal Reader: Best with built-in stock tracking
- myPOS Go 2: Best for instant access to funds
- Dojo Go Max: Best for very high volume
Market Trader Card Readers Compared
| Provider | Hardware cost | Transaction fee | Connectivity | Monthly fee | Settlement |
|---|---|---|---|---|---|
| SumUp Solo Lite | £25 | 1.69% | Bluetooth + phone | £0 | 1 to 3 days |
| SumUp Solo | £79 | 1.69% | Standalone 4G | £0 | 1 to 3 days |
| Square Reader | £19 | 1.75% | Bluetooth + phone | £0 | Next day |
| PayPal Reader | £29 first, £69 after | 1.75% | Bluetooth + phone | £0 | 1 to 2 days |
| myPOS Go 2 | £29 | 1.10% + 7p | Standalone 4G | £0 | Instant to myPOS account |
| Dojo Go Max | £229 or £25/month | 1.2% blended | Standalone 4G | £0 on Essential | Next day |
Prices and rates checked 3 August 2026 against each provider’s own UK pricing pages. Hardware prices exclude VAT. Dojo’s 1.2% is its published rate below £100,000 of card turnover a year; above that it quotes custom.
Best Payment Processing for Market Traders
Best Overall: SumUp Solo Lite
The SumUp Solo Lite is the right first call for most stalls, and it replaced the SumUp Air this page used to lead with, which SumUp no longer sells. At £25 plus VAT it is cheaper than the Air ever was, and the 1.69% is genuinely flat: Visa, Mastercard and American Express all cost the same, with no separate Amex surcharge. That is exactly what you want when a tourist hands you a US Amex on a busy Sunday. No monthly fee, no contract. It pairs to your phone over Bluetooth, so a dead phone battery stops you trading, not just a dead reader.
View SumUp Solo Lite on SumUp →
Best Without a Smartphone: SumUp Solo
The SumUp Solo costs £79 plus VAT and runs standalone with its own screen and connectivity, so no phone is needed. If you want a reader you can hand to a customer or a family member without giving up your own phone, the Solo solves a real friction for modest extra cost. You get the same 1.69% rate and the same no-contract terms as the Solo Lite, and you are paying the £54 difference purely to cut the phone out of the chain.
Cheapest Hardware: Square Reader
At £19, the Square Reader is the lowest-cost UK card reader, and we would point a trader with a fixed product range here first. It pairs via Bluetooth to your phone and includes the free Square POS app with stock management, so you get an inventory system without paying extra for it. The transaction rate is 1.75%, and settlement lands the next business day.
View Square Reader on Square →
Best for Stock Tracking: PayPal Reader
At £29 plus VAT for your first one, the PayPal Reader comes with the Zettle POS app and its product management, stock levels and low-stock alerts. If you are a craft trader with 50 or more lines, or a food vendor watching daily depletion, that bundled inventory is what earns it the place over the Solo Lite, because the rate does not: 1.75% against 1.69%. Additional readers cost £69. Worth knowing if you have seen this sold as the Zettle Reader 2 or PayPal Here, both retired names for the same lineage.
Best for Instant Access to Funds: myPOS Go 2
The myPOS Go 2 costs £29 plus VAT, runs on its own free data SIM, and settles funds instantly to a myPOS account. If you buy your restocks out of that same day’s takings, we rate that instant settlement the feature that decides it, because waiting two days for your own money is the difference between restocking tonight and missing tomorrow’s pitch. Two catches. The money lands in a myPOS account, not your bank, and getting it onward is a separate step with its own cost. And the 7p per sale on top of 1.10% bites hardest on small baskets: on a £5 sale that 7p is another 1.4%, which wipes out the rate advantage entirely. There is no monthly or annual account fee, contrary to the £3.99 this page used to quote.
Best for High Volume: Dojo Go Max
Dojo publishes 1.2% all-in below £100,000 of card turnover a year, which is roughly £8,333 a month, and it is a published rate rather than the negotiated one this page used to describe. The hardware is £229 outright or £25 a month, and the Essential plan itself carries no monthly fee. The standalone terminal has a built-in printer and next-day settlement. Above that £100,000 ceiling Dojo quotes a custom rate, so get it in writing before you assume the 1.2% follows you up. On our costing it only overtakes SumUp at around £3,470 a month, so below that the hardware price is simply dead weight.
How to Choose Payment Processing for Market Trading
Connectivity. Bluetooth-paired readers (Square, SumUp Solo Lite, PayPal) lean on your phone’s signal. Standalone readers (SumUp Solo, myPOS Go 2, Dojo Go Max) carry their own SIM. For rural markets, festivals, or any pitch where the signal drops, standalone is the safer bet, and we would check coverage at your specific pitches before committing to anything phone-dependent. A reader that cannot find a signal is not a cheap reader, it is a lost sale.
Volume. Under £2,000 a week, pay-as-you-go (SumUp Solo Lite, Square, PayPal) almost always wins on net cost. Dojo’s published 1.2% only overtakes SumUp’s 1.69% at around £3,470 a month once the hardware is counted. If you trade seasonally, stay on PAYG even at your busy peaks, because any monthly commitment still lands in the quiet off-season months when you are not earning.
Battery. Every Bluetooth-paired reader needs a charged phone to work, so you are running two batteries, not one. Carry a power bank regardless of which reader you use; a dead battery at 2pm costs you the rest of the day’s card sales.
Market Trader Payment Fees and Costs to Watch
Refund policy. SumUp does not return the transaction fee on a refund. Square does. If you sell clothing, gifts, or anything with a higher return rate, that difference adds up over a season, so factor it in rather than judging on the headline rate alone.
Keyed-in transactions. If you ever take card details over the phone for a pre-order or deposit, most readers charge a higher rate for manually entered transactions: Square charges 2.5% keyed-in versus 1.75% in person. Use a payment link for remote payments instead, and you keep the lower rate.
Foreign cards. Most flat-rate providers fold EU and non-EU cards into the blended rate, and SumUp’s 1.69% covers Amex. Where tourist volume is significant, the blended rate is the line in the contract worth reading twice, because a separate charge on overseas cards quietly erodes a margin that looked fine on the headline number.
Final Verdict: Which Market Trader Card Reader Should You Choose?
For most stalls, the SumUp Solo Lite at £25 is the one we would start with. The 1.69% is the same on every card type, including Amex, so a tourist handing over an overseas card does not quietly cost you more than a local debit card. Nothing else here combines that flatness with that hardware price.
Buy the SumUp Solo instead if your pitch has poor signal or you do not want your trading day tied to your own phone battery. The £54 extra buys independence from the phone, not a better rate.
Take the myPOS Go 2 only if same-day access to your takings genuinely changes what you can restock, and only if your average sale is comfortably above a fiver. The 7p per transaction is what decides that, not the 1.10%.
Dojo Go Max earns its place at volume, not before it. Below roughly £3,470 a month the £229 terminal is dead weight against a £25 reader.
The bottom line. Buy on the rate that applies to the cards your customers actually present, and on whether the thing will work at your pitch. A reader that cannot find a signal is not cheap, and a low headline rate that excludes Amex is not low.
Frequently Asked Questions
Yes. Standalone readers (SumUp Solo, myPOS Go 2, Dojo Go Max) carry their own mobile data and do not need Wi-Fi. Bluetooth-paired readers (Square, SumUp Solo Lite, PayPal Reader) rely on your phone’s signal, which is fine at most outdoor sites but patchy in rural or remote pitches. Check coverage at your specific pitch before you decide.
Under £2,000 a week in card volume, PAYG wins on total cost: the rate difference does not cover a monthly subscription. Above that reliably, compare a Dojo quote against your current PAYG costs. If you trade seasonally (Christmas markets, summer festivals only), stay on PAYG even at your higher weekly peaks, because monthly minimums still hit in the quiet periods.
The UK contactless limit is £100 per transaction. Payments above £100 need chip and PIN. Apple Pay and Google Pay have no contactless limit, because authentication is handled by the customer’s own device. Every reader in this guide supports the £100 limit as standard.
Not separately. SumUp, Square, PayPal Zettle, and myPOS are payment facilitators: you collect under their merchant ID. That means faster sign-up, minutes rather than days, but it also means they can hold or close your account if they flag unusual activity. For most market traders that is not a practical worry, but if you trade at high volume or in a higher-risk category, consider a dedicated merchant account through an acquirer like Dojo or TakePayments.
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Review Methodology and Disclaimer. This guide is costed from published prices, not from a trading day with each reader in hand. We rechecked every rate, settlement time and contract term against each provider’s own published UK pricing on 3 August 2026, and every figure here is generated from that costing rather than typed into the copy, so a price change moves the whole page. Where a judgement rests on how a device behaves rather than what it costs, we say so and say why. Dojo’s 1.2% is a published rate below £100,000 of card turnover a year, not the negotiated one we previously described.