In order to answer this question it is necessary to understand the effect of the VAT Directive in UK law prior to Brexit, before going on to consider the position during and after the Brexit implementation period. The position prior to Brexit Member States of the EU (which, prior to Brexit, included the UK) are under an obligation to transpose EU Directives into national law. In the UK, this obligation was recognised in section 2(1) of the European Communities Act 1972 (ECA 1972) which expressly required all UK authorities to give effect to the powers, obligations, liabilities, remedies and procedures which are provided for by EU law. For more information, see Practice Note: Obligation to transpose and process EU Directives. If an EU Member State fails to correctly transpose a provision of a Directive into national law, and if certain conditions are met, the Directive can have direct effect. There are different types of direct effect, but for Directives the relevant type is vertical