The autumn budget announced the introduction of a new structures and buildings allowance (SBA). It is designed to give tax relief for expenditure on commercial buildings and structures (non-residential) over a 50 year period (i.e. 2% on a straight-line basis). SBAs will be available for construction contracts on or after 29 October 2018. Given draft legislation has still be published (and unlikely to arrive until the new year) we have set out below some of the key differences