Square vs SumUp UK: which provider offers the best value for small businesses? In this guide, we compare pricing, features, hardware and ease of use to help you choose the right card payment solution.
If you’re a sole trader, market trader, café owner or retailer, both platforms allow you to accept card payments without long-term commitments. However, there are important differences in pricing, features and business suitability.
If you’re still deciding which provider to choose, see our full guide to the Best Card Payment Machines UK.
In this Square vs SumUp UK comparison, we’ll look at pricing, features, hardware options and ease of use to help you decide which card payment solution is right for your business.
Disclosure: Some links on this page are affiliate links. If you choose to purchase through them, we may earn a commission at no additional cost to you. Our comparisons and recommendations are based on independent research and editorial judgement.
Quick Verdict
Choose Square if:
- You need stronger business features
- You expect to grow
- You want a more complete business platform
Choose SumUp if:
- You want simplicity
- You process lower volumes
- You prefer the lowest upfront costs
Quick Comparison
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| Feature | Square | SumUp |
|---|---|---|
| Contracts | No | No |
| Transaction Fees | Varies by product and payment type | Varies by product and payment type |
| Setup | Simple | Very simple |
| Card Readers | Multiple options | Multiple options |
| Mobile App | Excellent | Good |
| POS Features | Strong | Basic |
| Best For | Growing businesses | Simplicity and low cost |
This Square vs SumUp UK comparison is designed to help small businesses understand the differences between the two platforms before choosing a provider.
Square Overview
Square has become one of the most popular card payment providers in the UK thanks to its combination of easy setup, modern hardware and powerful business tools.
The platform offers more than just card payments. Businesses can access reporting, inventory management, invoicing and customer management tools from a single system.
Pros of Square
- No long-term contracts
- Easy to set up
- Excellent mobile app
- Strong reporting tools
- Suitable for both small and growing businesses
- Good integration options
Cons of Square
- Some features may be unnecessary for very small businesses
- Costs can increase as transaction volume grows
Best For
Square is best suited to businesses that want room to grow and value additional business management features alongside payment processing.
SumUp Overview
SumUp focuses on simplicity and affordability. It has become particularly popular with sole traders, market stall operators and mobile businesses that need a straightforward way to accept card payments.
The setup process is extremely simple and the hardware is generally affordable.
Pros of SumUp
- Easy to understand pricing
- Simple setup process
- Low upfront costs
- No long-term contracts
- Suitable for occasional card payments
Cons of SumUp
- Fewer advanced business features
- Less comprehensive reporting compared with Square
Best For
SumUp is ideal for sole traders, mobile businesses and anyone who wants a simple card payment solution without unnecessary complexity.
Pricing Comparison
In this Square vs SumUp UK comparison, businesses should look beyond the initial cost of the card reader. The total cost of accepting card payments can vary depending on transaction volume, hardware requirements and any additional services you choose to use.
The total cost of ownership typically includes:
Hardware Costs
Both Square and SumUp offer a range of card readers and payment terminals at different price points. Businesses should choose hardware based on their requirements rather than simply selecting the cheapest option, as more advanced devices may offer additional functionality and improved customer experience.
Transaction Fees
Transaction fees are often the most significant long-term cost for businesses accepting card payments. While small differences in fees may seem insignificant initially, they can have a noticeable impact on overall costs as transaction volumes increase.
Optional Software Subscriptions
Some businesses may choose to subscribe to additional software services such as advanced reporting, inventory management or point-of-sale systems. These subscriptions can provide valuable features for growing businesses but should be considered as part of the overall cost when comparing providers.
Additional Accessories
Depending on your business type, you may require additional accessories such as receipt printers, charging docks, cash drawers or tablet stands. These costs are not always included in the initial hardware purchase and should be considered when budgeting for a complete payment setup.
Monthly Costs
Some businesses may choose optional software or point-of-sale services that carry additional costs. Always review the latest pricing directly with the provider before making a decision.
For businesses processing larger volumes of payments, transaction fees often have a greater impact than the initial hardware purchase price.
Pricing is discussed in greater detail in our fees and cheapest card readers pages.
Features Comparison
One of the most important factors in any Square vs SumUp UK comparison is the balance between simplicity, features and long-term costs.
Payment Processing
Both providers allow businesses to accept major debit and credit cards, contactless payments and mobile wallet payments.
Mobile Apps
Both companies offer mobile applications that allow businesses to manage payments and track sales.
Square generally provides more advanced reporting and business management functionality.
Point of Sale Features
Square has a stronger point-of-sale ecosystem, making it attractive for retail businesses, cafés and businesses with more complex operational requirements.
SumUp focuses on simplicity and ease of use.
Which Is Better for Different Business Types?
Sole Traders
For sole traders and occasional users, SumUp is often the simplest option.
Market Traders
SumUp’s straightforward setup makes it particularly attractive for mobile businesses and market stalls.
Retail Shops
Square’s inventory and reporting tools make it a stronger option for many retail businesses.
Growing Businesses
Businesses expecting significant growth may benefit from Square’s broader ecosystem of tools and integrations.
Square vs SumUp UK: Final Verdict
After completing this Square vs SumUp UK comparison, most businesses will find that the best choice depends on their size, transaction volume and feature requirements.
Both providers are excellent choices for UK small businesses.
Choose SumUp if your priority is simplicity, affordability and occasional card payments.
Choose Square if you want stronger reporting, business tools and room to grow.
For most businesses planning to expand over time, Square offers the better long-term platform. However, for sole traders and smaller operations looking for a simple solution, SumUp remains an excellent option.
Still comparing options? Read our complete guide to the Best Card Payment Machines UK for a wider comparison of leading providers.
Frequently Asked Questions
Is Square cheaper than SumUp?
The answer depends on transaction volume, hardware requirements and the specific products being compared.
Do Square and SumUp require contracts?
Both providers offer contract-free options, making them attractive for small businesses.
Can I accept contactless payments with both providers?
Yes. Both Square and SumUp support contactless payments and major debit and credit cards.
Which is better for a new business?
Many new businesses choose SumUp for simplicity, while others prefer Square because of its additional business management features.
General Guidance on Electronic Payments
The UK Government provides guidance on accepting electronic payments and running a business: GOV.UK business guidance
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