| Business Payments |
In 2026, card payments account for 0.2% of UK retail sales by volume? Actually, card share is over 80%, but the interchange fee for debit cards is 0.2%. For shops, countertop terminals suit fixed tills; for market stalls, mobile readers with 4G are practical.
Shops with fixed tills benefit from countertop terminals, while market stalls need portable 4G readers; compare fees and hardware costs.
KEY FACTS
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LAST REVIEWED 2026-09-06
What card machine is best for a shop with a fixed till?
For a shop with a fixed till, a countertop terminal is the standard choice. It connects to the till via Wi-Fi or Ethernet and processes chip and PIN quickly. The table below shows that providers like SumUp and Zettle offer no monthly fee, while Worldpay charges £20.00 per terminal monthly.
Countertop terminals are designed for high-volume, low-value transactions typical of retail. They integrate with EPOS systems to update stock and sales records automatically. For a shop processing £10,000 monthly, the percentage fee at 1.69% (SumUp) is £169, compared to £175 at 1.75% (Zettle or Square). Fixed-fee providers like Tide charge £2.99 monthly but their transaction rate is not published, so comparison requires a quote.
Consider the total cost of ownership: hardware purchase or rental, monthly fees, and transaction fees. Barclaycard offers a terminal for £29 one-off with no monthly fee for 12 months, then £18 monthly. Worldpay charges £20.00 per terminal monthly with no hardware cost published. For a shop with stable internet, a countertop terminal from a provider with no monthly fee may be cost-effective, but check contract terms and settlement times.
What card machine suits a market stall or pop-up shop?
For a market stall, a portable card reader that connects to a smartphone via Bluetooth is ideal. These pocket readers are lightweight and battery-powered, allowing transactions anywhere. The table above shows that Zettle offers hardware from £29 excl. VAT, while SumUp and Square do not publish hardware costs.
Market stalls often lack Wi-Fi, so a reader with 4G connectivity or a phone hotspot is essential. Providers like SumUp and Zettle offer apps that work offline and sync later, but real-time authorisation requires internet. For a stall processing £2,000 monthly, the fee at 1.69% is £33.8, and at 1.75% it is £35. These rates are higher than the 0.2% interchange, but they include processing and merchant services.
Consider battery life, durability, and whether the reader accepts contactless, chip, and PIN. Some readers have a built-in SIM for 4G, while others rely on the phone's connection. For occasional stalls, a pay-as-you-go plan with no monthly fee is common, but check if there is a minimum monthly turnover or inactivity fee.
| Monthly card turnover | SumUp at 1.69% | Zettle at 1.75% | Square at 1.75% | Tide | Worldpay |
|---|---|---|---|---|---|
| £2,000 | £33.8 | £35 | £35 | £2.99 + VAT fixed, rate not published | £20.00 fixed, rate not published |
| £10,000 | £169 | £175 | £175 | £2.99 + VAT fixed, rate not published | £20.00 fixed, rate not published |
| £40,000 | £676 | £700 | £700 | £2.99 + VAT fixed, rate not published | £20.00 fixed, rate not published |
Do shops need EPOS integration for card payments?
EPOS integration is not mandatory, but it automates stock tracking and sales reporting. For a shop with a fixed till, integrating the card terminal with an EPOS system reduces manual errors and saves time. The table below shows that providers like SumUp and Zettle offer free apps that can serve as basic EPOS, but advanced features may require paid plans.
When a card payment is taken, the EPOS system can update inventory levels in real time, generate receipts, and record sales by product. This is particularly useful for shops with many SKUs. Without integration, staff must manually enter sales, which is prone to mistakes. For a market stall, a simple card reader app may suffice, but for a shop, consider a provider that offers EPOS integration as part of its ecosystem.
Check whether the provider charges extra for EPOS features. Some providers, like Square, offer a free point-of-sale app, but hardware like a stand or cash drawer may cost extra. Others, like Zettle, integrate with popular accounting software. Evaluate the cost of integration against the time saved and error reduction.
How do card machines connect outdoors on a market stall?
Outdoors, card machines connect via 4G, Wi-Fi, or Bluetooth to a phone. For market stalls, 4G is the most reliable because Wi-Fi is often unavailable. Many portable readers have built-in 4G, while others use the phone's data connection. The table above shows that Zettle offers hardware from £29, but connectivity options vary by model.
If the reader relies on a phone hotspot, ensure the phone has good signal and battery. Some providers offer readers with a SIM card included, but there may be a monthly fee for connectivity. For example, Tide charges £2.99 monthly for its account, but the reader uses the phone's connection. Worldpay terminals may have built-in 4G, but the monthly fee is £20.00 per terminal.
Consider the coverage of your mobile network in the market area. If signal is poor, a reader with a separate 4G SIM from a different network might be better. Also, check if the reader can store transactions offline and process them later, which is useful during temporary signal loss.
What is the true cost of card payments for a shop or stall?
The true cost includes transaction fees, hardware, monthly fees, and any hidden charges. For a shop processing £40,000 monthly, a 1.69% fee (SumUp) is £676, while at 1.75% (Zettle) it is £700. These figures are from the table above. For a market stall processing £2,000, the fees are £33.8 and £35 respectively.
Fixed-fee providers like Tide and Worldpay charge a monthly fee but their transaction rates are not published. Tide charges £2.99 monthly, and Worldpay charges £20.00 per terminal. To compare, you need to know the average transaction value and volume.
Also consider settlement time: some providers pay next day, others within minutes. Faster settlement can improve cash flow but may come at a cost. Check for PCI compliance fees, chargeback fees, and early termination fees. The table below shows that SumUp and Zettle have no monthly fee, but hardware costs may apply.
Which provider fits a shop with a fixed till best?
For a shop with a fixed till, providers like SumUp, Zettle, and Square offer countertop terminals with no monthly fee. The table below shows that SumUp charges 1.69% per transaction, while Zettle and Square charge 1.75%. Barclaycard offers a terminal for £29 one-off with no monthly fee for 12 months, then £18 monthly.
Worldpay charges £20.00 per terminal monthly, which may be suitable for high-volume businesses that negotiate lower transaction rates. However, the rate is not published, so a quote is needed.
Consider the reliability of the provider's network and customer support. A countertop terminal should have a stable connection and fast processing. Some providers offer smart terminals that accept various payment methods, including mobile wallets. Check if the terminal supports contactless, Apple Pay, and Google Pay, as these are increasingly used.
| Provider | Hardware cost | Monthly fee | Settlement | Source |
|---|---|---|---|---|
| SumUp | not published | £0 | next day | source |
| Zettle | from £29 excl. VAT | £0 | within minutes to PayPal Business account | source |
| Square | not published | £0 | not published | source |
| Tide | from £11 + VAT | £2.99 + VAT | next business day | source |
| Barclaycard | £29 + VAT one-off | £0 for 12 months, then £18 + VAT | next day | source |
| Worldpay | not published | £20.00 per terminal | 24 hours | source |
Which provider fits a market stall best?
For a market stall, a portable card reader from SumUp, Zettle, or Square is common. These providers offer pay-as-you-go plans with no monthly fee, making them ideal for low or variable turnover. The table above shows that Zettle offers hardware from £29 excl. VAT, while SumUp and Square do not publish hardware costs.
Consider the reader's battery life and connectivity. A stall that operates all day needs a reader that lasts, or a power bank. Some readers have built-in 4G, which is useful if the phone signal is weak. Tide offers a reader from £11 + VAT, but requires a monthly fee of £2.99 + VAT. Worldpay's portable terminals may have higher monthly fees but offer dedicated support.
For a stall processing £2,000 monthly, the fee at 1.69% is £33.8, and at 1.75% it is £35. These are lower than the £2.99 monthly fee plus transaction rate of Tide, but Tide's rate is not published. Evaluate the total cost based on your expected turnover and transaction size.
How do card machine fees compare across providers in 2026?
In 2026, card machine fees vary by provider and plan. The table above shows that SumUp charges 1.69% per transaction, while Zettle and Square charge 1.75%. Tide charges a monthly fee of £2.99 + VAT, but its transaction rate is not published. Worldpay charges £20.00 per terminal monthly, also with an unpublished rate.
For a shop processing £40,000 monthly, the percentage fee at 1.69% is £676, and at 1.75% it is £700. These figures are from the table. For a market stall processing £2,000, the fees are £33.8 and £35. Fixed-fee providers may be cheaper for high-volume businesses if they negotiate lower rates, but the lack of published rates makes comparison difficult.
Consider the interchange fee of 0.2% for debit cards, which is a cost that providers pass on. The provider's margin covers processing, fraud prevention, and customer support. Some providers offer lower rates for larger turnover, but these are often not advertised. Request a quote from each provider to compare accurately.
What should a shop owner check in a card machine contract?
Before signing a contract, check the monthly fee, transaction rate, and any minimum term. The table above shows that some providers have no monthly fee, while others charge a fixed amount. For example, Barclaycard charges £18 monthly after the first 12 months, and Worldpay charges £20.00 per terminal.
Check the settlement time: next day or faster. Some providers offer instant settlement for a fee. Also, check if there are any setup fees, PCI compliance fees, or early termination fees. The hardware cost is another factor: Zettle charges from £29, while SumUp and Square do not publish costs.
Understand the difference between the quoted rate and the effective rate. The quoted rate is a percentage of each transaction, but there may be a fixed fee per transaction. Always ask for a full breakdown of fees.
How does the 0.2% debit card interchange affect retail card machine choice?
The 0.2% interchange fee for debit cards is a cost that card machine providers incur, but they do not pass it on directly. Instead, they charge a merchant service fee that covers interchange, scheme fees, and their margin. The table above shows that providers charge around 1.69% to 1.75% per transaction, which is significantly higher than the interchange.
The difference covers the provider's costs. Some providers may offer lower rates for debit cards, but this is not common in pay-as-you-go plans. For a market stall, the same rates apply.
When comparing providers, consider the average transaction value. For low-value transactions, a percentage fee may be more cost-effective than a fixed fee. For high-value transactions, a fixed fee might be better. The table below shows that for £2,000 monthly turnover, the fee at 1.69% is £33.8, which is higher than a fixed fee of £20.00, but the fixed fee provider may have a higher percentage rate.
Glossary: card payment terms explained
Interchange fee: A fee paid between banks for processing a card payment. In the UK, the debit card interchange is capped at 0.2%.
Merchant service charge: The total fee a provider charges for processing card payments, including interchange, scheme fees, and profit margin.
Pay-as-you-go: A pricing plan with no monthly fee, where the provider charges a percentage per transaction.
EPOS: Electronic Point of Sale. A system that records sales, manages stock, and processes payments.
Settlement time: The time it takes for funds from card transactions to reach the merchant's bank account.
PCI compliance: Payment Card Industry Data Security Standard. A set of requirements to secure cardholder data.
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Disclaimer. This guide is editorial information drawn from primary sources. It is not financial, legal or tax advice and does not recommend any provider. Figures are those published by the named sources on the review date and may change. Kael Tripton Ltd receives no commission, referral fee or lead payment from any provider named on this page. |
Frequently asked questions
What is the best card reader for a market stall?
For a market stall, a portable card reader that connects to a smartphone via Bluetooth is popular. Providers like SumUp, Zettle, and Square offer pay-as-you-go plans with no monthly fee. Zettle's hardware starts from £29 excl. VAT. These readers are lightweight and battery-powered, suitable for outdoor use. Ensure the reader has 4G connectivity or can use your phone's hotspot, as market areas may lack Wi-Fi. Compare transaction fees: SumUp charges 1.69%, Zettle and Square charge 1.75%. For a stall processing £2,000 monthly, the fee is £33.8 or £35 respectively.
Do shops need EPOS integration for card payments?
EPOS integration is not mandatory but beneficial for shops with a fixed till. It automates stock tracking and sales reporting, reducing manual errors. Providers like SumUp and Zettle offer free apps that can serve as basic EPOS. Advanced features may require paid plans. For a shop with many products, integration saves time and improves accuracy. Without it, staff must manually enter sales. Consider the cost of integration against the time saved. Some providers charge extra for EPOS features, so check the total cost.
Can I take payments with no Wi-Fi at a market?
Yes, you can take payments without Wi-Fi using a card reader with 4G connectivity or by using your phone's mobile data. Many portable readers have built-in 4G, while others rely on a Bluetooth connection to a phone with internet. If the phone has no signal, some readers can store transactions offline and process them later, but this may delay settlement. Check the reader's specifications for offline mode. Providers like SumUp and Zettle offer offline payments, but there may be limits on the number of transactions.
Are card fees lower for debit-heavy retail?
Card fees are not automatically lower for debit-heavy retail. The interchange fee for debit cards is capped at 0.2%, but providers charge a merchant service fee that is typically around 1.69% to 1.75% per transaction. This fee covers interchange, scheme fees, and the provider's margin. Some providers may offer lower rates for debit cards, but this is not common in pay-as-you-go plans. Always compare total fees.
Should a small shop rent or buy a card machine?
Whether to rent or buy depends on your budget and usage. Buying a terminal involves a one-off cost, such as £29 for Barclaycard or from £29 for Zettle. Renting may involve a monthly fee, like Worldpay's £20.00 per terminal. For a small shop with low turnover, buying may be more cost-effective in the long run. However, renting may include maintenance and support. Consider the total cost over the expected lifespan of the terminal. Also, check if the provider offers free hardware with a contract, as some do.
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