Found a post, by a blue: http://forums.wow-europe.com/thread....geNo=1&sid=1#9

Hi,

Is it against the rules to transfer gold between alliance and horde on a PvE server using the neutral auction house? I've seen it done a lot, but want to be sure before I ask someone to help me do it in case it affects their account.

Thanks.

Hi Lienra,

Aerrich has already linked a previous response to this question, which you can find at:

http://forums.wow-europe.com/thread....915359&sid=1#3

To reiterate - cross-faction trading like this is not considered to be exploitation, and players are free to do so if they do not mind incurring the costs associated.

Issuntril
and the linked post:
There seems to be a lot of players asking this lately.

What you speak of is perfectly legal Seijin, and we already have a development solution in place to discourage this kind of cross-faction trade, in that the cut for using the neutral AHs is quite a bit more than the regular ones.

If you are happy incurring such costs while transferring your gold over, then you are of course free to do so.

Issuntril
So it's perfectly fine to do, and you don't even have to be the owner of both accounts.