How was it sold? Were the shares sold?
You need to ask your accountant
You need to read the treaty
We just use the HMRC software where we don't run the payroll
What are you trying to achieve?
Where are you going to get the relevant experience from?
There is no point doing the exams if you don't have the practical experience to back it up. Who do you think will employ you in that situation?
I would read Article 17, section 1 https://assets.publishing.service.gov.uk/government/uploads/system/uploa...
Why don't you close off 2017 and post an opening balance journal in Sage to give you the correct opening position?
Yes I have done this a number of times
Yes the amount before fees and commission is the clients gross sale figure - which should be used for VAT