BIM22020 - Trade: Exceptions & alternatives: Betting and gambling - spread betting
The principles of Down v Compston [1937] 21TC60 and Burdge v Pyne [1968] 45TC320 (see BIM22019) apply equally here. To be taxable, the spread betting wins must come not merely from an opportunity presented by a trade, they must arise from the carrying on of that trade. Whether or not a particular spread bet is taxable will depend on the terms of the contract and the economic substance of what is done.
For more on this see CFM50380.

