Tesco claims 19 million Clubcard holders could save more than £400 a year with the loyalty service.

Clubcard Plus can be used in all UK Tesco stores, including Metro and Express shops, but it is only available to Clubcard members. So you’ll need to join Clubcard before you can subscribe to Clubcard Plus.

Clubcard Plus benefits include:

• 10 per cent off two big shops up to £200 each, every month (in-store only, not online, and exclusions apply)
• 10 per cent off F&F, Fred & Flo, Go Cook, Fox & Ivy, Tesco Pet and Carousel all the time
• Double data on a pay monthly contract every month for new and existing Tesco Mobile customers
• Exclusive access to apply for a Tesco Bank credit card with no foreign exchange fees (from the new year)

How much can you save

Tesco claims that:

10 per cent off two big shops up to £200 each, every month, means customers can save more than £380 a year on groceries alone.

A family with two young children spending £120 on nappies each month will be able to save £12 a month with 10 per cent off Fred & Flo nappies.

A family with two school-aged children spending £200 a year on school uniform will save £20 a year with 10 per cent off at F&F.

Pet owners spending £250 a year on dog food and treats can save £25 a year as they get 10 per cent off Tesco Pet.

Alessandra Bellini, Tesco chief customer officer, said: “We know that our customers are always looking for ways to make their money go further. That’s why we’re launching Clubcard Plus – so that they can get better value on the products and services that matter most to them, throughout the whole year.”

What do the experts say?

Martin Lewis, founder of MoneySavingExpert.com, said: “Almost certainly Tesco has seen the power of Amazon Prime and decided it wants a taste of that.

“One set of US research showed Prime members tend to stick with Amazon, and are eight times less likely to shop elsewhere in a session. This means they spend far more money. In fact, it’s likely Prime would be profitable for Amazon even without the subscription fee, because it engenders so much more customer stickiness.

“And that stickiness is what Tesco wants. It’s likely this is why it’s charging the subscription fee, as it’s at the core of the psychology behind it. If you can get people to sign up, their behaviour changes. They start to think: ‘As I’ve paid for it, I should use it’, which is what keeps them locked in.”