ARCHIVED: This archived Practice Note provides background reading on the main differences between the CSOP guidance in ESSUM and where it can now be found in ETASSUM. It also details any substantial differences in the guidance. This Practice Note illustrates the position as at November 2015 and is for background purposes only. Background On 28 October 2015, HMRC notified its followers of a new Employee Tax Advantaged Share Scheme User Manual (ETASSUM), which can be found on its Gov.uk website. The old guidance contained in the ESSUM is still, at the time of writing, live and can be found here. The ETASSUM, as its title suggests, covers enterprise management incentives (EMI) schemes, company share option plans (CSOPs), save as you earn (SAYE) schemes and share incentive plans (SIPs). The ETASSUM is not yet in its final form and many of the links are, at the time of this Practice Note, still missing.