Yeah, I have never heard of the sort either in all the threads I've read regarding paying taxes with a cc (my first year). I am wondering with all this new credit card legislation if they are changing the way they do things regarding those borderline type transactions to generate additional fees. Either way I was 2 for 3 when calling csrs. If anyone else hears anything different then please keep us posted.
BTW, I was charged a cash equivalent fee for using my Charles Schwab 2% card on PAYPAL! They said all Paypal transactions are considered cash equivalent. Something about this just does not sound right... maybe they do not have a viable product anymore without 1 or 2 ridiculous fees?