The number of estates in the UK paying inheritance tax rose by 72% in the five years up to 2004, according to a study.
According to the Halifax an increase in property prices left more than 30,000 estates - most worth less than £500,000 - liable for the tax.
This is only going to get worse as they are prediciting a 22% increase 2007.
For most estates below £500,000 there is a simple solution and that is to write what are known as in the industry as Nil Rate Band Discretionary Wills or IHT saving Wills.
For a full explanation of how these work click here