Add someone to your Amex account for 1,000 Membership Rewards points or 500 Avios
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American Express has two on-going bonus schemes to encourage cardholders to add supplementary cardholders to their accounts. After all, the more people who are carrying a card, the more spend they can accumulate!
There are two offers, one for American Express Platinum and one for the British Airways American Express card.
The Platinum offer gives 1,000 Membership Rewards points for every supplementary cardholder you add.
Your first supplementary cardholder gets a Platinum card and can apply for all of the Platinum benefits including the Carlson Gold, Starwood Gold and Accor Platinum hotel statuses. They also receive their own Priority Pass giving them access to 600 airport lounges, together with a guest.
Four other people can be give Gold supplementary cards on your account. These do not qualify for the perks above apart from the travel insurance benefits.
In all cases, the charges for the spending on the supplementary cards appear on your statement. You are legally responsible for their payment!
This is applicable to either the free BA Amex card or the fee-paying Premium Plus version. It is not clear how many supplementary cards you can add to a British Airways American Express account but I know people with 3-4.
Note that it can take American Express a while to process applications for supplementary cards – it is not unusual for it to take six weeks.
PS. One of the most common questions I am asked is ‘does having a supplementary card on my partners account stop me signing up for my own Platinum / Gold / BA Amex later?’. The answer is No. You can still apply in your own right and receive a sign-up bonus.
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Want to earn more points from credit cards? – April 2025 update
If you are looking to apply for a new credit card, here are our top recommendations based on the current sign-up bonuses.
In 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
You can see our full directory of all UK cards which earn airline or hotel points here. Here are the best of the other deals currently available.
SPECIAL OFFER: Until 27th May 2025, the sign-up bonus on the ‘free for a year’ American Express Preferred Rewards Gold card is increased from 20,000 Membership Rewards points to 30,000 points. Points convert 1:1 into Avios (30,000 Avios!) and many other programmes. Some people may see even higher personalised offers. Click here to apply.
SPECIAL OFFER: Until 27th May 2025, the sign-up bonus on American Express Platinum is increased from 50,000 Membership Rewards points to a huge 80,000 points. Points convert 1:1 into Avios (80,000 Avios!) and many other programmes. Some people may see even higher personalised offers. Click here to apply.

American Express Preferred Rewards Gold
Your best beginner’s card – 30,000 points, FREE for a year & four airport lounge passes Read our full review

British Airways American Express Premium Plus
30,000 Avios and the famous annual 2-4-1 voucher Read our full review

The Platinum Card from American Express
80,000 bonus points and great travel benefits – for a large fee Read our full review

Virgin Atlantic Reward+ Mastercard
18,000 bonus points and 1.5 points for every £1 you spend Read our full review
Earning miles and points from small business cards
If you are a sole trader or run a small company, you may also want to check out these offers:

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

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

Capital on Tap Pro Visa
10,500 points (=10,500 Avios) plus good benefits Read our full review

Capital on Tap Visa
NO annual fee, NO FX fees and points worth 1 Avios per £1 Read our full review

British Airways American Express Accelerating Business
30,000 Avios sign-up bonus – plus annual bonuses of up to 30,000 Avios Read our full review
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