(c) Without changing the advice you have given in (b), or varying the terms of Luke’s will, explain how Mabel could further reduce her eventual inheritance tax liability and quantify the tax saving that could be made. (3 marks) The increase in the retail prices index from April 1984 to April 1998 is 84%. You should assume that the rates and allowances for the tax year 2005/06 will continue to apply for the foreseeable future.