Michael O'Brien

Hi all, I need to import some goods from Portugal and the timescales between when the goods are complete and when I need them to be in UK is so tight that I dont want them to run into any trouble with couriers. Does anybody know what the process is with regards to me colelcting them myself in a van and bringing them back into the UK, probably via Calais. Do I just need to have invoices and sort taxes when back in UK or is it not that simple?