Trains and Busses willbe given special permission to continue to work over the border post brexit ,whats the story for taxies ,we are a business so do we have the right to trade north of the border post brexit .Also if the G20 agree on tax harmonisation and that tax must be paid in the country the service is used and not the country where it is purchased will we have a tax liability in the north if we drop off there .Could become an issue for drivers working in border counties .