This week's edition of Tax weekly highlights includes: (1) the publication of extensive new R&D guidance in the CIRD Manual, (2) the inclusion of the Canadian DST to the list of foreign taxes which HMRC believes are similar to the UK DST, (3) an update to the guidance on preparing for MTT and DTT, and (4) News Analyses on the Court of Appeal’s decisions in GE Financial Investments, on the interpretation of the UK-US double tax treaty, and Marano on automated notices and assessments.