On 23 May 2018, the UK issued a statutory instrument (SI 2018/630) ratifying the multilateral instrument (MLI), which had been produced as part of the OECD/G20 BEPS project. On 29 June 2018, the UK deposited its instrument of ratification with the OECD depository. These two acts set the MLI on course to amend many of the UK’s double taxation treaties, in some respects, from later this year.