I see what you are coming from with Reverse VAT. If all your sales went via Dubai you would be over the 81K limit and thus registration for VAT might be necessary. However as you are both supplier and customer in the words of HMRC
'Where it applies, you act as if you are both the supplier and the customer - you charge yourself the VAT and then, assuming that the service relates to VAT taxable supplies that you make, you also claim it back. So there's no net cost to you - the two taxes cancel each other out.'
In taxation terms it is a lemon and, furthermore, were your company VAT registered and this is all the business it does, it could reclaim the input tax on all other services consumed as well making it a net recipient of reclaimed VAT every quarter, for everyone involved an exercise in financial futility as far as tax collection is concerned and in administrative ditto for you. If there is a danger of your company breaching the registration limit through your Dubai transactions then it may be necessary.
I would be inclined to raise the matter with HMRC's registration offices well before to get their views on whether it ought to be registered in the light of the organisation's normal trading pattern. HMRC advise using their telephone service, the relevant number is *****(###) ###-####
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