Unless the UK can negotiate a Taxation solution under Article 50 of the Lisbon Treaty --
the Brexit will be possibly very costly. There goes Digital VAT on UK citizens' purchases abroad and VAT exemptions on business purchases between the UK and the EU. That is about a 20% value in limbo.
Brexit: What are the implications for tax law? - Lexology
The top five tax implications Britain's EU exit will have on businesses | Economia
Censorship in the UK for adult content will only get worse IMHO.