It is a close race between the most popular mobile card readers in the UK. Check out this comparison to find the one that fits your needs.

Takepayments offers competitive card machine contracts for small businesses. What about the product and quality of service?

Getting a card machine for charity donations isn't easy in the UK. We did the research and compare all the options for a charitable cause.

What are the limits on contactless transactions in the UK and beyond? When are cardholders required to enter a PIN? Here's how it works.

We look at different QR code menus for restaurants, comparing simple menus with those that integrate with POS, ordering and payments.

Square Point of Sale offers more than standard features you get in other POS apps. But for a free app, are there any caveats?

What is the best till software for food and drink? We rank leading POS systems for small-to-medium restaurants in the UK.

Our Zettle, Square and SumUp comparison tables show key differences in fees, features and card reader capabilities.

After much analysis and testing, we've created this shortlist of the UK's top card machines to help you compare options.

Compare all credit card readers that work with an iPhone, iPad or Android app in the UK. Which is best - and worth the cost - for a small business?

Linear barcodes are facing discontinuation, and QR codes will take over. Is this compulsory for UK retail shops? Why and how will it happen?

Square Point of Sale offers more than standard features you get in other POS apps. But for a free app, are there any caveats?

What's the best EPOS system for small shops in the UK? Although many options prevail, only few tills are great for small retailers.

We've tested Shopify POS Pro and Lite and share our insights. Is this the best way for online merchants to sell in store?

Square's virtual terminal is cheap, easy to use and requires no commitment. How does it work? Any feature limitations?

Phone payments through Takepayments is not for everyone. We tested it and review fees, features and service - here's what to consider.

Worldpay's virtual terminal works well, but what are the costs and what can you expect from the service?

Which contactless digital wallets can be tapped on a card terminal in the UK - and which should merchants accept? Find out how they differ.

What's the meaning of contactless payment? We look at the definition, technology, options and how they work for all parties.

What are the definition and types of recurring payments? Direct Debit or Credit, standing orders and CPA - what are they used for?

Are businesses allowed to add a surcharge on card transactions? What does the UK law say? See the rules and exceptions that merchants should follow.

A "free business account" is not truthfully free. We look at the hidden costs that businesses are charged for an account with no monthly fee.

Revolut for Business is a current account for freelancers and companies - are there hidden fees for international transfers?

Should you consider using virtual cards to pay for business expenses? How can you use them and what are the benefits?