As said by others previously, there is no tax to pay on any amount of money given away unless the donor dies within seven years of making the gift. Having said that, even if the donor dies within seven years of making the gift, if their total estate is below the value for inheritance tax(IHT), currently £325K, including the money previously given away, there will be no tax to pay. Even if there is IHT to pay it will come out of the estate of the donor not the recipient.