Originally Posted by
krazieman
I'm going to have to pay about $400k for estimated taxes in January for an investment return. If I put all that on my AMEX Platinum personal (at a cost of 1.87% extra), would be that sufficient to call in shortly after?
Or will Amex discount that spend because it's not luxury items?
I don't know the answer to your question, but I am impressed that you are willing to spend $15,480 more to gain a Centurion in addition to the normal $10K initiation fee.
Of course, if your $400,000 is based upon capital gains tax, then go for it!
(My calculation is based upon your charge fee, plus the opportunity cost of not using a 2% back card).