Square vs SumUp UK (2026): Which Card Payment Provider Is Better?

Square vs SumUp UK is one of the most common comparisons for small businesses looking for a card payment provider. Both companies offer contract-free card payment solutions, transparent pricing and a range of hardware designed to help businesses start accepting card payments quickly.

At first glance, they appear very similar.

Both allow businesses to accept contactless payments, Chip and PIN transactions, Apple Pay and Google Pay. Both offer Tap to Pay functionality, online payment tools and point-of-sale software. Neither requires a long-term contract, and both are popular choices among sole traders, retailers and growing businesses.

However, there are some important differences.

While SumUp focuses on simplicity, affordability and ease of use, Square has developed one of the most comprehensive business management ecosystems available to UK small businesses.

For businesses that simply need a straightforward way to accept card payments, SumUp is often difficult to beat. Its lower standard transaction fee and simple pricing structure make it particularly attractive to sole traders, market traders and small businesses.

Square takes a broader approach. Alongside payment processing, it offers advanced retail software, restaurant tools, appointment management, inventory tracking, team management and online selling capabilities. For many businesses, it becomes more than just a card payment provider.

This means the comparison is not simply about transaction fees.

The real question is:

Do you want a simple and affordable payment solution, or a broader platform that can support your business as it grows?

In this guide, we’ll compare fees, hardware, software, payouts and overall value to help you decide which provider is the better fit for your business.

If you’re comparing providers, you may also find our guides to Best Card Payment Machines UK, Cheapest Card Readers UK, Card Machine Fees Explained, SumUp Fees UK, Square Fees UK, SumUp vs Zettle UK, Square vs Zettle UK, Square vs Dojo UK and Dojo vs SumUp UK helpful.

Comparison Table

📱 Viewing on mobile? Swipe left and right to see the full table.

Feature	Square	SumUp
In-person transaction fee	1.75%	1.69%
Reduced-rate pricing available	No	Yes (Payments Plus)
Monthly fee required	No	No
Long-term contract	No	No
Tap to Pay	Yes	Yes
Entry-level card reader	Square Reader	Solo Lite
Payment terminal	Square Terminal	Terminal
Advanced retail POS	Yes	Limited
Restaurant tools	Yes	Limited
Appointment management	Yes	No
Online selling tools	Extensive	Good
Best for	Growing businesses	Small businesses and sole traders

Pricing last checked: June 2026. Fees and hardware prices are based on publicly available UK provider pricing at the time of writing. Provider prices can change, so always confirm the latest details directly before signing up.

Which Is Cheaper?

For many businesses, pricing will be one of the biggest factors when choosing between Square and SumUp.

Unlike some provider comparisons, both companies are transparent about their pricing and make it easy to understand what you’ll pay before signing up.

However, SumUp does hold a small advantage.

Square charges a flat transaction fee of 1.75% for in-person card payments.

SumUp charges 1.69%.

While the difference appears minor, it applies to every transaction you process.

For businesses taking only occasional card payments, the savings will be small. As card volumes increase, however, the gap becomes more noticeable.

SumUp also offers an additional advantage through its Payments Plus plan.

For £19 per month, eligible domestic consumer card transactions can qualify for reduced rates from 0.99%, significantly below Square’s standard 1.75% fee.

Businesses processing larger card volumes may therefore be able to reduce their payment costs even further.

What Does This Mean For Your Business?

For many smaller businesses, the difference between 1.75% and 1.69% is unlikely to be life-changing.

The bigger consideration is how much value you receive from the platform alongside those fees.

A sole trader taking occasional payments may see little benefit from Square’s additional functionality and may prefer SumUp’s slightly lower costs.

A growing retailer or hospitality business may find Square’s broader software ecosystem easily justifies the marginally higher transaction fee.

Hardware Comparison

Both Square and SumUp offer modern payment hardware suitable for small businesses, but they take slightly different approaches.

SumUp focuses on simplicity and affordability.

Square focuses on flexibility and scalability.

For businesses that only need a straightforward card reader or payment terminal, there is relatively little separating the two providers. As hardware requirements become more advanced, however, Square’s broader ecosystem becomes increasingly important.

Entry-Level Options

Both providers offer Tap to Pay, allowing businesses to accept contactless payments directly on a compatible smartphone without purchasing additional hardware.

This can be an attractive option for:

• Sole traders
• Market traders
• Tradespeople
• Start-ups
• Businesses testing card payments for the first time

Both providers also offer affordable entry-level hardware.

Square Reader is designed for simple mobile payments and connects to a smartphone or tablet.

SumUp Solo Lite serves a similar purpose and remains one of the cheapest dedicated card readers currently available.

For businesses wanting the lowest possible setup costs, either option performs well.

Payment Terminals

As businesses grow, many prefer a dedicated payment terminal.

Square Terminal combines payment processing, touchscreen functionality and receipt printing within a single portable device.

SumUp Terminal provides a similar all-in-one experience aimed at retailers, cafés and higher-volume businesses.

For many businesses, either terminal will comfortably handle day-to-day card payments.

Hardware for Growing Businesses

This is where the differences become more noticeable.

SumUp’s hardware range includes:

• Solo Lite
• Solo
• Solo + Printer
• Terminal

This provides enough choice for most small businesses.

Square’s hardware ecosystem is considerably broader and includes:

• Reader
• Terminal
• Stand
• Handheld
• Register
• Kiosk

This allows businesses to create specialised setups for different environments.

For example:

• A retailer may use Square Register at checkout.
• A restaurant may use Square Handheld for table service.
• A café may combine Square Terminal with Square Stand.
• A quick-service venue may deploy Square Kiosk for self-service ordering.

This breadth gives businesses more room to expand without changing provider.

Which Hardware Is Better?

For businesses that only need a simple card reader or payment terminal, both providers perform extremely well.

However, businesses that expect their hardware requirements to evolve over time will generally find more flexibility within the Square ecosystem.

Software & Features

For many businesses, software eventually becomes more important than hardware.

A card machine processes payments, but the software behind it can influence inventory management, customer relationships, online selling, reporting and day-to-day operations.

This is the category where the biggest differences between Square and SumUp emerge.

Simplicity vs Capability

This comparison is not about good software versus bad software.

Both providers offer capable business tools.

The real question is how much functionality your business needs.

SumUp focuses on:

• Simplicity
• Ease of use
• Low costs
• Core business tools

Square focuses on:

• Scalability
• Industry-specific solutions
• Business management
• Omnichannel selling
• Advanced operational functionality

For businesses that expect to remain relatively simple, SumUp’s approach may actually be preferable.

For businesses planning to grow, Square’s broader ecosystem offers significantly more flexibility.

Payouts & Payments

Receiving payments quickly and managing them efficiently is important for any business.

Fortunately, both providers perform well in this area.

Square Payments

Square supports:

• In-person payments
• Online Store
• Online Checkout
• Payment Links
• Invoices
• Subscription payments

Businesses can manage payments across multiple channels through a single dashboard, making it particularly attractive for businesses selling both online and in person.

SumUp Payments

SumUp supports:

• In-person payments
• Online Store
• Payment Links
• Online Invoices
• QR Code Payments
• Ecommerce integrations

Like Square, it allows businesses to accept payments through multiple channels without requiring a separate merchant account.

Which Provider Has Better Payouts?

For most businesses, there is very little practical difference between Square and SumUp.

Both provide straightforward settlement processes, easy-to-use dashboards and multiple ways to accept payments.

Neither provider has a standout advantage in the way that Dojo differentiates itself through next-day settlement or Zettle differentiates itself through PayPal integration.

Which Is Best For Your Business?

The best card payment provider depends largely on how your business operates and what you need beyond basic payment acceptance.

Here’s how Square and SumUp compare across different business types.

Sole Traders

Winner: SumUp

Most sole traders prioritise:

• Low costs
• Simplicity
• Easy setup
• No long-term commitment

SumUp performs strongly in all of these areas.

The lower transaction fee, affordable hardware and straightforward pricing structure make it one of the easiest card payment solutions for self-employed professionals and small businesses to adopt.

For many sole traders, Square’s additional software features will simply be more than they need.

For more help choosing between providers see our guide to the Best Card Readers for Sole Traders UK.

Market Traders

Winner: SumUp

Market traders typically need:

• Portable payment solutions
• Low setup costs
• Reliable mobile payments
• Flexibility

SumUp’s combination of Tap to Pay, Solo Lite and lower transaction fees makes it particularly attractive for markets, events and pop-up trading environments.

While Square performs well here too, SumUp’s lower costs give it the edge.

Tradespeople

Winner: SumUp

Tradespeople often want a simple and reliable way to accept payments on-site.

This includes businesses such as:

• Electricians
• Plumbers
• Builders
• Landscapers
• Decorators
• Mobile repair services

SumUp’s lower transaction fee and simple payment solutions make it an easy recommendation for many mobile businesses.

The ability to start accepting payments quickly without contracts or monthly fees is particularly appealing.

Retail Shops

Winner: Square

Retail businesses often need more than a card reader.

Requirements can include:

• Inventory management
• Customer management
• Sales reporting
• Dedicated checkout hardware
• Multi-channel selling

While SumUp offers retail functionality through its POS products, Square’s retail ecosystem is significantly more developed.

As retail businesses grow, Square provides more tools without requiring a change of provider.

Cafés & Hospitality Businesses

Winner: Square

Hospitality businesses often require:

• Faster service workflows
• Dedicated payment devices
• Team management
• Hospitality-focused software
• Online ordering capabilities

Square’s restaurant software, broader hardware range and hospitality functionality make it particularly well suited to cafés, restaurants and food-service businesses.

The difference between the two providers becomes much more noticeable in this environment.

Growing Businesses

Winner: Square

This is where Square’s strengths become most apparent.

Growing businesses often need:

• Additional hardware options
• Better inventory management
• Online selling tools
• Team management
• More sophisticated workflows

Square was designed to support these requirements.

While SumUp remains an excellent option for smaller businesses, Square generally provides a clearer long-term growth path. Businesses that need a broader comparison of the leading providers should also see our guide to the Best Card Machines for Small Businesses UK.

Is Square or SumUp Better Value?

Value is about more than simply comparing transaction fees.

The provider that offers the best value depends on how much benefit your business receives from the features included.

For many businesses, SumUp offers excellent value because:

• Transaction fees are slightly lower.
• Hardware costs are affordable.
• Pricing is simple and easy to understand.
• There are no long-term contracts.
• Businesses can start accepting payments with minimal investment.

For a sole trader, market trader or small service business, these advantages can be difficult to ignore.

However, value looks different for businesses with more complex requirements.

A retailer, restaurant or growing business may benefit significantly from:

• Better inventory management
• More advanced reporting
• Industry-specific software
• Additional hardware options
• Stronger online selling tools
• Better scalability

In these situations, Square’s broader ecosystem may justify the slightly higher transaction fee.

This is what makes Square vs SumUp such an interesting comparison.

Unlike some provider comparisons, neither provider is objectively better for every business.

The best option depends on how your business operates today and how you expect it to evolve in the future.

For businesses that only need a straightforward card reader and simple payment solution, SumUp is likely to offer the better value proposition.

For businesses looking beyond payment acceptance, Square’s broader software ecosystem, stronger retail and hospitality tools, and greater scalability make it the more capable platform overall.

🏆 Overall Value Winner: Square

Frequently Asked Questions

Ready to Learn More?

Before making a decision, it’s worth taking a closer look at each provider’s pricing, hardware and software features. Our detailed provider guides explain transaction fees, card machine costs, optional subscriptions and business tools in more detail, helping you choose a provider that fits both your current requirements and your future growth plans.