THE Liberal Democrats' flagship pledge to tax £1 million houses was "unravelling'' last night as the party was unable to explain the basic details of the plan.
Vince Cable, the Lib Dem Treasury spokesman, said his plan for a new property tax would raise more than £1 billion, money the Lib Dems would use to raise the income tax threshold to £10,000.
An annual tax of 0.5 per cent would be levied on the portion of a house's value that exceeded £1 million, meaning a £1.5 million property would incur a £2,500 annual liability.
The pledge, intended to reassure Left-leaning members of the party who were concerned about plans for "savage'' cuts in public spending, ran into trouble as Mr Cable struggled to answer questions about its implementation.
Despite estimating that 250,000 houses would be affected, the Lib Dems were unable to say exactly which houses would qualify for the levy. Mr Cable said Land Registry sales records could be used to identify properties sold for more than £1 million. But he accepted that would exclude houses that were bought for less and subsequently pushed over that threshold by property price inflation.
He suggested that such properties could be inspected by the Valuation Agency to reassess their market value, but he was unable to say how the agency would choose which properties to re-evaluate.
Philip Hammond, the Tory shadow chief secretary to the Treasury, said Mr Cable's plan was "unravelling, unworkable and leaves basic questions unanswered''.
Matthew Elliott, Chief Executive of the TaxPayers' Alliance, called the plan "half-baked''.
"This tax would hammer those pensioners who behaved responsibly and bought a nice house when they were working, but thanks to the property boom and the pensions crash now own expensive houses but have next to no income,'' he said.
Mr Cable said that the tax could be "rolled over'' from year to year and then taken from someone's estate after death. The suggestion that the Lib Dems were effectively proposing a new inheritance tax further undermined what was meant to be the flagship policy declaration of the party's conference in Bournemouth.
The idea could also hamper Lib Dem MPs in affluent constituencies who are facing Tory challengers, especially since the Tories have pledged to cut inheritance tax.
Mr Cable also suggested that owners of large houses with low incomes should mortgage their homes to pay the tax. "There are equity release schemes and that is a way you can turn your wealth into income,'' he said. But the Lib Dems have consistently opposed property taxes, and argued that the council tax should be scrapped and replaced with a local income tax.
Mr Cable conceded that his new "mansion tax'' would only be a "temporary'' measure, which would be abandoned when the local income tax was introduced.
Mr Cable's plan had not been approved by the Lib Dem shadow cabinet or even discussed in detail. Asked if his colleagues had approved the plan, Mr Cable said only: "We're talking about it.''





















