Curve – the radical new payment card that lets you use Amex ANYWHERE

The Curve card, launched yesterday into public beta, is a radical new sort of payment card.  It takes some of the best features of Supercard (which has still not launched publicly) and adds a few new twists which are bound to appeal to the Head for Points loyalty credit card readership.

Most relevant for our market, it allows you to pay for anything where a MasterCard is accepted and have it recharged – as a purchase – to an American Express card.

Even cash withdrawals are recharged, as a purchase, to your Amex.  I have been testing the card for a few days and I can confirm that this works perfectly.

Let me repeat this bit – you can buy something using the Curve card at a retailer which only accepts MasterCard, or even make a cash withdrawal at an ATM, and it will be re-charged to your American Express card (or a Visa or MasterCard) as a purchase.  It will earn miles, points or cashback and count towards any sign-up bonus.  It also works abroad, even on overseas cash withdrawals.

You must have an iOS smartphone to join up.  Android will follow later in the year but, for now, you will be missing out – sorry!  An iPad would also work – the only purpose of the app is to load up details of your other credit and charge cards and to check your transactions.

Curve is required to target the small business market rather than the personal market, although their description of “bliss for entrepreneurs, freelancers and small business owners” is a very broad one.

Curve prepaid MasterCard

This is how it works:

You pay a £35 one-off fee and receive a rather snazzy MasterCard in the post

This is offset by a £10 sign-up credit if you use my refer a friend link

You download the Curve card app to your iOS device

You link as many other Visa, MasterCard and American Express cards as you wish to the app

You select which card you want to use for your next transaction

You can then use your Curve card in shops or in cash machines.  The transaction shows in the app and is recharged to your underlying card as a purchase.

Last Friday, for example, I withdrew some Euros from an ATM at Frankfurt Airport using my Curve card.  The transaction is already showing, as a purchase with Avios earned, on my BA Amex statement.

Can I use the card everywhere?

Not quite.

Curve cannot be used for “gambling transactions, dating / escort services, massage parlours, automated fuel pumps and direct marketing – inbound telesales”.

You are limited to transactions which can be processed using a prepaid MasterCard.  I tried to pay my Amex bill with it, as a test, and it failed.

It is not clear what happens if you use the card as security at a hotel or for car hire rental, as a prepaid MasterCard is normally blocked in those circumstances.

I am assuming that it does work OK as a debit card (and thus, for example, avoiding the £5 British Airways credit card fee) but I haven’t tested it yet.

What about Section 75 refund protection?

To quote from their website:

Similarly to PayPal [….] 3rd party purchases, using Curve is not a direct purchase from the user’s original card, so the purchases are not covered by Section 75 of the Consumer Credit Act.

However Curve users are protected by MasterCard chargeback rights where refunds can be provided if goods are damaged, not as described, or the merchant has ceased trading.

What are the fees?

The Curve card is not entirely free, but you may find that you can avoid their fees depending on how you use your card.

Purchases made in the UK – FREE.  Remember that Curve means that you can effectively use American Express EVERYWHERE that a prepaid MasterCard would be accepted.

Purchases made outside the UK – 1% fee.  This compares with the standard 3% fee on 99% of UK credit and debit cards.

Cash machine withdrawals in the UK – FREE.  Yes, you can withdraw cash from a UK ATM and will appear on your Amex or MasterCard as a purchase, earning you miles and points and counting towards any sign-up spend target

Cash machine withdrawals outside the UK – £2 fee plus 1% FX fee.  If the ATM itself charges a fee, as often happens in the USA and some other countries, this will obviously be added on.

How does this compare to using a card with no FX fees such as the Post Office or Lloyds Avios card?

In terms of making purchases abroad, you will – purely in terms of £ charged to your card – still get a better deal with the Post Office Platinum Money (free, review) or Lloyds Avios Rewards (£24, review) cards.  This is because Curve adds a 1% FX fee which those two cards have no FX fee at all.

However, if you want to put your spending onto a card other than the Post Office or Lloyds Avios then it is a no-brainer to use Curve abroad.  For working towards your BA Amex 2-4-1, for example, you will save 2% on every overseas transaction when you use Curve instead of paying directly with the BA Amex.

You also need to remember that Amex acceptance is rare in many European holiday areas and Curve is the only route to generate Amex spend from these transactions.

Overseas cash withdrawals will be a better deal on Curve because the withdrawal will be treated as a purchase and thus earn miles.  You will also avoid the cash advance fee and daily interest levied by Lloyds or the Post Office.  Halifax Clarity has no cash advance fees abroad but still charges daily interest.

Should I use the Curve card for all of my UK ATM withdrawals?

Absolutely.  Withdraw £100 in cash using Curve and it will go through your American Express or other linked card as a £100 purchase.  This will earn you, on a BA Amex, Avios points plus count towards your BA 2-4-1.

Note that ‘fair usage restrictions apply’.  I suspect that anyone withdrawing more than a couple of hundred pounds a week may find their card blocked.

How does Curve make money?

As the card is aimed at business users, the Curve card is not impacted by the EU cap on interchange fees.  There are also plans to offer additional services to users in the future.

What is the difference between the £35 and £75 Curve cards?

They seem to have screwed this up, to be honest.  There are two versions of the Curve card, a blue one and a black one.  The only difference is that the black one, which costs £40 more (a one-off fee, not annual) will apparently earn double rewards in the Curve loyalty programme.  As that programme has not yet been launched, however, it is impossible to know if you’d get £40 of value from it!

In terms of what the card does and the fees you pay to use it, both are identical.  The £35 version should do the job.

As a temporary offer, you will receive a free Tumi leather card case, worth £60, when applying for the £75 version.

Remember that you get £10 back as a credit when you sign up via my link, or any other refer a friend link.

Who is behind Curve?

The company is an independent start-up, but primarily funded by the backers of TransferWise.

What have I learned from the beta?

As I mentioned, I have had the card for the past few days and have been trying it out.

My biggest issue is that the app does not show the original foreign currency value of overseas transactions.  All you see is the £ equivalent.  I am told that this will be added to the next release but it seems to be a major oversight. (EDIT, March 2016: this information has now been added to the app.)

There is also an issue with how American Express transactions appear on your card statement.  MasterCard and Visa purchases made using Curve, as with Supercard, show on your statements using part of the original descriptor so you can still identify what a particular payment was for.

Amex transactions simply show on your statement as ‘Curve London’.  To work out what each transaction represents, you need to open the Curve card app – which shows the original description, eg WH Smith Heathrow – and manually match up transaction values.

I should make clear that every transaction (purchase and ATM withdrawal) I have used it for over the last 5 days in the UK, Germany and Austria has gone through without a problem.

How do I join Curve?

You can sign up here.  This link includes my referral code so you receive £10 credit.

(If you decide to sign up via the app, please add my referral code when prompted of oqb4J)

Remember that the card is aimed at “entrepreneurs, freelancers and small business owners” and you will be asked to say that you fall into one of these boxes.

Only 10,000 applications are being accepted at this stage – I suspect the HFP community will account for a fair % of these.  You will not receive your card until April.

Remember that you must have an iOS smartphone or an iPad to take part and that there is a £35 one-off fee.

Curve is still in beta mode for the next few weeks and, as I mentioned above, the app is still missing some of the functionality which it advertises.  This is a very interesting product however and I’m sure those HFP readers who qualify to get one can see the value in getting one when it comes to maximising their miles and points.

The application page is here.  If you use the app to apply instead of a desktop, please add my referral code of oqb4J.

Thanks to my resident credit card expert Andrew Seftel (@andrewseftel) for his help with this article.  The Curve card links in this article include my refer-a-friend code, which means that you will receive a £10 sign-up credit.

How to save £50 tax on Avios flights to Cape Town
Bits: opening date for BA's new Dubai terminal, easyJet Plus card jumps up to £170
About Head for Points

We help business and leisure travellers maximise their Avios, frequent flyer miles and hotel loyalty points. Visit every day for three new articles or sign up for our FREE emails via this page or the box to your right.


  1. Silly question – why do I need an iClone or iFad to sign up? Can’t I just use any web browser to log in, update details etc?

  2. I signed up this morning. I think it will work for using your amex anywhere.. But with regards to cash withdrawals.. It just doesn’t feel right. Its basically a licence to print airmiles… which BA will not like one bit whatsoever.
    Then you have the obstacle of convincing HMRC that you are simply are taking advantage of a credit card loop hole and you really dont need to put in a tax return for this business venture thats got you earning £1000 a day.

    Wether it works or not.. Curve have certainly thought about their marketing as we have basically crashed the site today.

    • I will be doing my standard cash withdrawals, which about £250 a week as I need to pay off the domestics and numerous trips to Pret! No more than that.

      • Do you know the people behind curve? Can you somehow find out what is considered fair use? I can easily use £500-1000 in a week, in cash, especially for business purchases. (I usually choose to use a credit card, for points, but cash is also accepted…)

        • I think ‘fair use’ may be a function of how much you spend on Curve as a credit card. ATM withdrawals will lose them money, if that is offset by your spend on the card you are probably ok. And if not, you’re not.

          • Exactly. There won’t be any written rule regarding this but if you are putting through £200k pa on the card and earning them a comparative fortune in doing so, they aren’t going to stop you taking £20k a year cash out are they? Conversely if you only put through £10k a year on a spend and try to take out £8k cash they probably won’t wear that will they? Just common sense.

      • Surely pret goes on the credit card Rob!

        • Peter Finch says:

          Curve has no cash it’s a new company sounds to dodgy ,
          This company has just been formed curve 1 Ltd I would
          Do your research you could get stung!!!

          • Same backers as TransferWise which is now valued at $1bn. I struggle to see how you could lose anything except your original £35, of which £10 comes back as credit immediately.

      • Pret take Amex !

  3. OK so I have an AMEX card with the £20k promotion thing for a free companion voucher.
    Can I just get as much cash out as I can with a curve, put it straight into my bank, and then pay off my amex? So I can basically spend £20k in 100 with no penalty (except the £35 signup)

    Sounds too good to be true

  4. I managed to order the card tonight, finger cross

  5. How does Curve make money?

    “As the card is aimed at business users, the Curve card is not impacted by the EU cap on interchange fees.”

    Forgive me. I do not understand how Curve make any money from Interchange (or comparable Amex) fees? An interchange (or comparable Amex) fee is payed by the Aquirer to the Issuer and set by the card network. Therefore Curve will receive a MasterCard interchange fee (as MC card issuer) whilst concurrently paying an interchange fee when charging the clients card as Aquirer. Assuming MC and Visa set interchange fees at the same level (and Curve have negotiated the same rate with Amex) the transaction will be a wash with no profit or loss whilst the EU cap is irrelevent.

    Is my understanding wrong?

  6. Re cash withdrawals, aren’t those getting excited missing something, the payment of interest on a withdrawal from a mastercard ?

    I can see the advantages when withdrawing cash abroad using the likes of a Halifax Clarity Card as this charges daily interest but this stops as soon as payment is made, but my recollection of withdrawals from a UK ATM is that you are charged interest for the full statement period. I’ve not done the maths but my guess is it makes it a non starter.

    • Fees are also charged by most banks for ATM withdrawals

    • It is recharged as a purchase to your Amex or credit card, so no interest is due.

      • Thanks Rob, are you therefore saying nothing appears on your statement for your original card ?

        Does your orginal card holder track credit limits etc or is everything effectively transferred over to AMEX ?

        • On an Amex, charges appear as ‘Curve London’. On a MC / Visa it appears as ‘Curve Starbucks’ or whatever – they can add on a few words from the original description.

          Not sure what you meant by the 2nd question. Curve doesn’t know what the credit limit is on your underlying cards and just keeps shoving over transations until the underlying card refuses to accept them (because you would have hit your limit).

          • Thanks again Rob, ignore the second question I was getting confused thinking you paid Curve and not your original card provider, will give it go using your referral link

  7. TGLoyalty says:

    Signed up for blue as £25 isn’t a bad outlay even for just for the UK non amex stores and the odd cash withdrawal, a few less companion cards to have to carry around day to day

    but at MasterCard Wholesale rate + 1% I’ll stick to using Avios AMEX directly or Halifax Clarity abroad but you never know when its worth it to hit a spend target

  8. Could be a gold mine for paying HMRC taxes!

  9. Anyone got a way of using this on Android? Saw something about an emulator on previous thread. What’s the emulator called and is it a go-er?


    • An emulator is a way of running programmes written for one operating system on another one. No decent iOS emulators for Android that I can find. Looking at running a Mac OS virtual machine and then running XCode via this, will report back how I get on!

  10. I’ve managed to sign up and tried to link it to my MBNA Diamond Club Amex. All seems ok until I get to the Verify Card option at which point I get an error code. I’ve tried on both iPhone and iPad with the same error occuring. The app is also showing a picture of a Virgin Atlantic Amex card rather then my Diamond Club card. Has this happened to anyone else?

  11. Just signed up (have ipad to use app) but many of my business suppliers refuse to accept Amex but very few insist on solely bank transfer (though they prefer it of course). Most will accept M/C so we’ll see how this goes !

  12. John Gallagher says:

    just used your referral code – thanks Raffles

  13. I am living in Euroland am primarily using USA based credit cards. Reading your report(s), I thought that the Curve would not work for me (in anybway that made sense), however checking the website, under the ‘International Use’ section it gives a bit of confusing message that conmecting the Curve with a foreign currency and then paying in that foreign currency/zone will NOT have any fees or conversions. I wonder what that means exactly for us here in Euroland? Easy way to use an EU AMEX here in EUland?

    • Yes, that is the theory

      • Thanks Raffles – being that there are limited signup bonuses for EU/Euro based AMEX (and relatively boring points benefits compared to the costs of the cards) as much as I REALLY want one of these Curve cards, even at £35 I cant see how I will use it.

  14. What are the exact requirements for being eligible for a business card? Is it registered as self employed with hmrc? Is there a minimum self employed income?

    • No, it’s self-declared. They included freelance work so this could cover any other earnings separate to main employment.

      • So is the requirement to have at least some self employment income declared on tax return in addition to employed income?

        • I’ve not seen that requirement anywhere, no. I wouldn’t expect they’d be asking to look at tax returns.

        • Why do you worry about such things? If you buy a teabag for 1p and sell it it a colleague for 1.5p, then you’re in business!!

  15. Extract from the T&Cs below is why I will not be signing up :

    “2.2 Your Business Account. Your Account is a Business Account. Unless otherwise agreed,
    you may hold not more than one Business Account. Holders of certain Business Accounts
    may be required to upgrade their accounts (which may include providing further
    information to Curve) in order to use all of the current functionality available. By opening a
    Business Account and accepting the terms as outlined in this Agreement, you attest that
    you are not establishing the Account for personal, family, or household purposes, and its
    use by you must be limited to business expenses. You agree that your Account comprises
    the Payment Account and the Reserve Account. The Curve Card attached to your Account is
    a ‘Commercial Card’ as defined by the EU Multilateral Interchange Fee Regulation therefore
    its use by you must be limited to business expenses as set out above.”

  16. it wont let me sign my MBNA Virgin Amex up to the account… Anyone else having problems?

  17. Thanks Raffles for the post! I’ve just ordered one, quite simply I will use when I can’t use Amex and I don’t need the Amex protection. Cash withdrawals in the UK seems a no brainer. I can also pay my fuel bills on MasterCard for no charge! As with everything on here, be smart and make the card work for you!

  18. so if it can only be used for business as nick commented, then we cant do any personal shopping using this card then where amex is not accepted. Neither can we withdraw cash for personal use.

  19. Is it better to use this abroad rather than the Travelex Superflex card?

  20. headformiles says:

    does it matter if I chose ‘other’ then information technology when it asked me about my status?

    will I still get my card in march?

  21. I signed up last Friday, but no idea when would I receive it tho. Does anyone have any idea?

  22. Just had an email from Curve asking me to do a Survey about my interest in curve, but more interestingly they subtly dropped in that the card will be shipped “late March”, not just March as before.

    I expect others like me are eagerly anticipating the arrival of this card. I have even earmarked a number of bills etc which can be paid by Mastercard only!

  23. Yep, that’s a really helpful comment – details of any concerns would have been a bit more constructive?!

    • I’m meeting the CEO in a couple of weeks so feel free to let me know any questions!

      • Good interview to have lined up – look forward to hearing how it goes. My top qns (you’ve probably got these already!) – (1) when will the Android app be out and do they want any testers for it? (if so, please pass on my details!), (2) will ATM withdrawals be a percentage of other spend or a fixed cap, (3) have they given any more thought to the differences for the black card – e.g higher limits for ATM withdrawals, (4) any more details yet on their rewards scheme.

  24. I was going to say, if you are interviewing them and tell them what you do, they might catch on that all of the sign ups are so people can rack up miles and that might put an end to this quickly.

    • They know what I do. There are only taking 10,000 people in the first wave and a high % are from here.

      • Cool, well good on ya for promoting it. Even if 2500 people signed up via this website using you link, you will get a nice bonus from it.