Cashback works by giving a percentage of what you spend on your card back to you.
Card providers can do this thanks to something called the "interchange fee".
This is the fee that providers charge shops and other merchants in exchange for their services in sorting out the payment.
With a cashback card, some of that money goes to you as well as your card provider.
If a cashback credit card pays 1% cash back on everything you buy, you could earn £50 if you spend £5,000 a year.
While this might not seem like a lot, if there are no fees associated with the card, it's essentially free money.
Sometimes cashback is only offered on a few things you buy, like petrol or your energy bills.
There are also variations on the cashback offered based on how much you spend, what you spend it on and where the money is spent.
To find the best cash back credit card for you, you need to look beyond the headline rate.
For example, some of the credit cards offering the top cash back deals are only accepted in a few shops and services, such as American Express. This may mean you can’t use it for your regular shopping trips.
You also need to look at your spending - if there are rewards based on how much you put through the card, or a fee attached, will you be using it enough to make it worth your while?
In some cases a rewards card offered by a supermarket might prove more lucrative than straight up cashback, for example.
Always make sure you pay your card balance in full with a cashback card."
Not all cash back credit cards are the same. Cashback cards offer a range of different deals and rewards.
Some cash back credit cards will just pay you cashback as a flat rate. For example 2% on everything you buy.
Other cashback credit cards pay cash back at different levels when you spend more or less. For example, a cashback credit card may pay you 1% if you spend £5,000 a year on your credit card, and 2% cash back if you spend more than that.
Cashback credit cards can also offer different amounts of cash back for spending in different shops. A cash back credit card may give you 0.5% cashback on money you spend when you do your weekly food shop at a supermarket, but 1% when you buy things from a chain of electrical stores and 2% on all of your petrol purchases.
When we use the term ‘most popular or ‘popularity’ on Uswitch in reference to credit cards, these cards are ranked by the number of clicks they have received on the site in the past 30 days.
The most clicked on cards are at the top, with the least at the bottom. This reflects how popular they are with visitors to Uswitch.com. Consequently, this is a good table to look at if you’re interested in seeing which cards most people think are worth getting.
We compare over 100 credit cards from all of the major banks and credit card providers.
However, we do not compare all the credit cards that are available in the UK.
This is because some credit card providers have offers that are only available exclusively through their own website or branch, or through other comparison websites - in the same way some credit cards are exclusively available through Uswitch.
There are also many credit cards that are only available to people in member organisations and clubs.
Our best deals on a range of credit card categories by use:
Our top credit cards by type, most popular deals and business cards