HMRC registers traders for new import procedures HMRC has automatically registered 95,000 businesses for its simplified import procedures allowing most traders up to six months to pay import duties and submit customs declarations, if the UK leaves the EU without a deal on 31 October. The scheme, known as Transitional Simplified Procedures (TSP), will make importing after Brexit on 31 October much simpler, particularly for businesses who would be completing customs processes for the first time. Up to now, businesses have had to apply for it – over 25,000 had previously registered.