Tory pledge to scrap inheritance tax on family homes would narrow an island advantage

Kemi Badenoch has said the Conservatives would abolish inheritance tax on family homes, a pledge the BBC reported on Wednesday as she tried to persuade voters that her party had changed since losing the 2024 general election.

At Westminster, this is an opposition promise. On the island, it touches one of the simplest differences between the Manx and UK tax systems. The Isle of Man has no inheritance tax and no capital gains tax, as the Government points out in its guidance for people moving here.

What has been promised

The Conservative leader, who is also Leader of the Opposition, said her party was “coming back”. BBC Verify has since examined the party’s plan to rework the tax on inherited wealth and who stands to gain from it.

The headline offer is about the family home. For anyone weighing up a move, much will depend on two details: what happens to other assets, such as businesses, investment portfolios and second properties, and how the lost revenue would be replaced.

The pledge is also some way from the statute book. The BBC’s Chris Mason wrote on Wednesday that the Tory leader has the backing of her party, but that the Conservatives are polling behind both Labour and Reform.

Why it matters here

Inheritance tax is the easiest part of the island’s offer to explain. A family comparing the two systems is setting a tax on inherited wealth against no such tax at all.

If family homes were taken out of UK inheritance tax, that comparison would shift most for households whose wealth is largely the house they live in. For them, one reason to consider a move would carry less weight.

For people whose estates are made up mainly of businesses, investments or several properties, the gap would remain, assuming the exemption is confined to the family home as the headline pledge suggests.

The rest of the island’s tax offer is untouched by anything said at Westminster. The standard rate of income tax here is 10% and the higher rate 21%. Taxpayers can also elect to cap their income tax bill, and the Government’s figures put the cap for 2026/27 at £220,000 a year for a single person and £440,000 for a jointly assessed couple.

So the pledge, even if it became law, would chip at one argument for moving rather than remove the case altogether. How much that matters in practice depends on who is weighing the move, and there is no reliable way to put a number on it.

Wealthy residents are on Jersey’s agenda too

The island is not the only small economy with a stake in where wealthy families choose to live. More than 260 industry figures met to discuss the role high-value residents play in Jersey’s economy, BBC News reported on Friday.

Tax is not the whole calculation

Living costs weigh on any decision to relocate, and here the recent figures are less kind to the island. Consumer price inflation was 4.1% on the island in August, against 3.1% in the UK, and the island’s annual rate has been above the UK’s in every month from April to August, according to Isle of Man Government and Office for National Statistics figures.

That measures how fast prices are rising rather than how high they are, but it is not a point in the island’s favour.

The effect on the island’s housing market is harder to judge. Demand from incoming households is one influence on prices among many, and a single opposition pledge is unlikely to move it on its own. A UK exemption actually in force would be a different matter, but how buyers might respond cannot be measured in advance.

What to watch

Three things will show whether this becomes a live issue for the island: the fine print on which assets the plan would cover, whether the Conservatives’ standing in the polls improves, and whether the pledge makes it into a manifesto in its current form.

Until then, nothing has changed for anyone deciding where to live. The UK still taxes inherited wealth, the island does not, and the promise to take family homes out of the UK tax comes from a party out of office.