I have question about company structure at the moment I have two companies, company A has been open for since May 2009 and company b since April this year. Company helped B with start up loan, however Company A credit card is being used to buy stock for company B at the moment both company are limited and both in the same building its a bit confusing as one paying is paying for stock and items for the other.
The question is this the best way to structure my companies or should I change it to just one company and have the other as subsidiary or should I keep it as two companies and make company A pay Company B rent as such in the form of using the company A credit card.

If one company how would that effect VAT as we will be hitting VAT hold quicker?