I have sold a site and i now have to pay cgt on it. i have some shares which are currently worthless. i was thinking of selling these and offsetting the loss against the gain on the sale of the site. i got on to my broker (wont name them but they are probably the best known brokers in the country) they told me they would give me a letter to say that the shares are worthless and this woule be good enough for my tax return. My accountant has told me i would have to actually sell the shares. Has anyone ever come accross this before?