In 2007, inheritance tax became a political crisis. House prices had soared throughout the 2000s, driven by cheap credit, low interest rates, and undersupply. The average house price in the UK had risen from £100,000 in 1999 to £200,000 by 2007, doubling in less than a decade. And in London and the South East, prices had risen even more dramatically, with average homes worth £300,000, £400,000, £500,000, and family homes in desirable areas worth far more.
But the inheritance tax nil-rate band had not kept pace. In 1999, it was £231,000. By 2007, it had risen to £300,000, an increase of just 30% while house prices had doubled. And this meant that hundreds of thousands of families, families who had bought modest homes decades earlier, families who had never considered themselves wealthy, were now facing inheritance tax bills. Because their house, the family home, had inflated in value to the point where it exceeded the threshold, and when they died, their children would owe tens of thousands, sometimes hundreds of thousands, in tax.
And this created panic. Middle-class families, people who had worked, who had saved, who had bought a home, were suddenly facing a tax they had never expected to pay. And they were angry. They saw inheritance tax as unfair, as punishing them for house price inflation that was beyond their control, as forcing their children to sell the family home to pay a tax bill. And that anger created political pressure, enormous pressure, that forced the government to act.