Question! If one do option trading for spare time especially trading for own personal account say 10 per day (buy and sell) for the year, while working full time, then would it mean gains (or losses) would be liable to U.K. income tax, instead of capital gains? And in case of income tax, do we use turnover (all sells of options bought) and then offset expenses (purchases of options) right?
The honest answer is I don't know. Certainly if you were trading futures or stocks, there is no way it would be treated as income - it would be CGT. But I've heard people say that all options trading is treated as income; but I haven't seen a reference for that.
Income would be calculated as sales - premium paid - commissions.
You can also deduct trading expenses, data feeds, interest expenses if you're subject to income tax; if it's CGT you can't.
You could also use mark to market if you were running through a limited company.
GAT