A. You won’t receive interest on the money held in premium bonds but any prizes you receive from those bonds are tax free. The prize fund is calculated on the basis of a nominal interest rate of 1.3%. Thus if you hold £10,000 in premium bonds for one year, on average you should expect to win £130 as bond prizes over the year. However, that return is not guaranteed and you may win more or less. You could also win the big prize of £1million!
The premium bonds will form part of your estate for inheritance tax purposes, so will be subject to inheritance tax on your death if the value of your total estate exceeds the exempt limit of £325,000 (fixed to 2018).