For 2014/2015 the annual exemption for individuals is £11,000. This will be increased to £11,100 for 2015/16.
In the event that there are losses brought forward from earlier years, the losses are only required to cover gains in excess of the annual exemption for the year.
It is expected that the annual exemption for 2016/17 will revert to the increase in the Consumer Prices Index.