Re: I'm confused...
"I think a simple rule of "costs paid to any company in the same legal group (ie. parent company, company owned by the same parent company, subsidiary etc...) do not count as costs for taxation purposes in the UK", or something like that would help."
But some of these subsidiaries and so on are subject to the laws of other sovereign nations, which means you can have sovereign rights clash and/or complaints of double taxation.
Biting the hand that feeds IT
