I have not read all the threads, but I bank with ANZ. Late last year, they sent me an AMEX card, which I now use whenever possible. The reason being that the VISA which I still have, has had its reward points lowered substantially.
Obviously AMEX must be expanding, on the basis of offering some rewad to ANZ to get their business? Whats the real deal here I wonder?
The deal is that businesses pay higher rates to process American Express transactions when compared with Visa & MasterCard. The rates for all transactions are split between the card issuer (of the customer's card), the acquirer (the bank who operates the store's merchant account), and the network (Visa/MC/Amex/Diners/JCB).
So if a merchant was paying 0.72% for Visa/MasterCard, the amount earned from this % would be split between the issuer, acquirer and network. If, say the issuer received a 45% fee share (ie. 0.324% of the overall transaction value), the acquirer a 54% fee share (ie. 0.3888% overall), and the network received the remaining 1% fee share (0.0072% overall), then on a $100 transaction, the bank would receive
32.4 cents for Visa/MasterCard.
For most acquirers, Amex transaction charges are billed directly by Amex, and therefore the acquirer would only receive their normal fixed transaction fee (~10-30c). So for issuer purposes, here's the calculation for the same transaction amount on American Express:
Sample merchant fee: 1.96%
Issuer fee share: 45% of fee / 0.882% of total txn talue
Acquirer fee share: 0%
Network fee share: 55% / 1.078% of total txn value
Total issuer fee received:
88.2 cents (almost 3x what would have been received from Visa/MasterCard)
So if an issuer processes, say, $2b worth of (non-disputed and non-fraudulent) credit card transactions annually, then using these figures, the bank would have $6.48m in gross card commission revenue if the customer was using Visa/MasterCard. If however, the
same amount was processed using Amex, the gross card comm. rev. would be $17.64m, a difference of $11.16 million annually...
Therefore they try to give as many incentives to their customers to use Amex over Visa/MC where available, as the customer becomes more profitable to them.
Long story short, Amex transactions make the bank more money, explained in detail above
PS: The percentages used above are an example - exact %s would most likely vary between the different issuers and acquirers, and may not be close to what was used in the example. (However, the same percentage was used for both card calculations, so any change here would be proportional to both)
This also doesn't take other income such as increased annual fees and foreign currency conversion revenue into account - both of which are also in favour Amex for bank income.