In most cases, there is no capital gains tax (CGT) to be paid on the transfer of assets to a spouse or civil partner. There is, however, still a disposal that has taken place for CGT purposes effectively at no gain or loss on the date of the
Usually, if you sell an asset for less than you paid for it you would make a capital loss. As a general rule if the asset would have been liable to CGT had a gain taken place then the loss should be an allowable deduction.
If an individual realises