I pressed the wrong button!
If it's more the it is a potentially exempt transfer, after 7 years it is disregarded but if you die within 7 years it is added back to your estate (if anyone tells the tax man about it) and uses up some of your allowance of �285,00, that is free of Inheritance Tax.
If the gift itself is bigger than �285,000 then the recipient may have to pay Inheritance tax on it (on a sliding scale, depending when you die)
Read the site yourself, in case I've got it wrong, or take advice if large sums are involved.