£5 off a £25 Amazon order on Tuesday – stacks with £25 Amex Membership Rewards code

To celebrate being named Britain’s No 1 retailer for consumer satisfaction, Amazon is having a one day sale today. Long term readers may remember that they did a similar deal last year and the year before.

You will receive £5 off any order of £25 or more using the code BIGTHANKS.

Gift cards do not count, unfortunately. All items must be sold directly from Amazon and not from one of its partners.

The Amazon home page is here.  Full terms and conditions for the offer can be found there.

This should stack with the American Express Membership Rewards ‘£25 off a £40 purchase’ offer if you have Preferred Rewards Gold or Platinum Amex card.

This is for SOME PEOPLE – definitely not everyone – who link their Amex Gold or Amex Platinum card to their amazon.co.uk account and part-pays with Membership Rewards points.

This is what to do, assuming you have not done this offer in the past:

Link your Membership Rewards account with your Amazon account by visiting this page on the Amazon website 

Buy £40 of items on amazon.co.uk before 31st March (these MUST all be sold by Amazon and not third party merchants, and excludes digital content and gift cards)

IMPORTANT:  Items must be purchased in a single order and shipped at the same speed to a single address

You MUST select your Membership Rewards-earning Amex card as your payment card (you cannot use gift cards or any other payment source)

Part-pay for your order using Membership Rewards points.  The sneaky option is to redeem just 10 points for a 5p discount.  This saves you ‘wasting’ MR points on a low value redemption.  You will only get 0.45p per point and you shouldn’t waste more than 10 of your valuable points on such a poor deal!

Do NOT add the code at this point.  Click ‘Use This Payment Method’ and continue to the final payment screen.

Enter code AMEX25SWP at check out (the code must go in after you have selected part-payment with your Membership Rewards-registered card)

You should be able to do this after redeeming the BIGTHANKS code.

The offer expires at midnight tonight, Tuesday 19th March.

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How to earn Avios from UK credit cards (July 2025)

As a reminder, there are various ways of earning Avios points from UK credit cards.  Many cards also have generous sign-up bonuses!

In February 2022, Barclaycard launched two exciting new Barclaycard Avios Mastercard cards with a bonus of up to 25,000 Avios. You can apply here.

You qualify for the bonus on these cards even if you have a British Airways American Express card:

Barclaycard Avios Plus Mastercard

Get 25,000 Avios for signing up and an upgrade voucher at £10,000 Read our full review

Barclaycard Avios Mastercard

Get 5,000 Avios for signing up and an upgrade voucher at £20,000 Read our full review

There are two official British Airways American Express cards with attractive sign-up bonuses:

British Airways American Express Premium Plus Card

30,000 Avios and the famous annual Companion Voucher voucher Read our full review

British Airways American Express Credit Card

5,000 Avios for signing up and an Economy 2-4-1 voucher for spending £15,000 Read our full review

You can also get generous sign-up bonuses by applying for American Express cards which earn Membership Rewards points. These points convert at 1:1 into Avios.

American Express Preferred Rewards Gold Credit Card

Your best beginner’s card – 20,000 points, FREE for a year & four airport lounge passes Read our full review

The Platinum Card from American Express

50,000 bonus points and great travel benefits – for a large fee Read our full review

Run your own business?

We recommend Capital on Tap for limited companies. You earn points worth 0.8 Avios per £1 on the FREE standard card and 1 Avios per £1 on the Pro card. Capital on Tap cards also have no FX fees.

Capital on Tap Visa

NO annual fee, NO FX fees and points worth 0.8 Avios per £1 Read our full review

Capital on Tap Pro Visa

10,500 points (=10,500 Avios) plus good benefits Read our full review

There is also a British Airways American Express card for small businesses:

British Airways American Express Accelerating Business Card

30,000 Avios sign-up bonus – plus annual bonuses of up to 30,000 Avios Read our full review

There are also generous bonuses on the two American Express Business cards, with the points converting at 1:1 into Avios. These cards are open to sole traders as well as limited companies.

The American Express Business Platinum Card

50,000 points when you sign-up and an annual £200 Amex Travel credit Read our full review

The American Express Business Gold Card

20,000 points sign-up bonus and FREE for a year Read our full review

Click here to read our detailed summary of all UK credit cards which earn Avios. This includes both personal and small business cards.