CGT is a tax charged if you sell, give away, exchange or otherwise dispose of an asset and make a profit or ‘gain’.
It is not the amount of money you receive for the asset but the gain you make that is taxed.
Broadly, to calculate the gain, you compare the sale proceeds (or value of the asset at the time it was disposed of) with the original cost of the asset (or value when it was acquired).
If you are a UK resident, you may be liable to CGT on disposals of assets located anywhere in the world, not just your UK-located assets.
Non-residents are liable to CGT if they are carrying on a trade in the UK. If you are non-resident, you may also be liable to CGT on the disposal of UK land and property.
There are special rules for CGT purposes that apply to individuals who are normally resident in the UK but are temporarily resident outside the UK (broadly this means those who are non-resident in the UK for less than five years).
You may have to pay CGT when you give an asset as a gift to someone. The rules are different depending on who you give the gift to and there are special reliefs for gifts of business assets.