Ed Davey set out a pledge at the Liberal Democrats’ annual conference in Brighton to deliver a £17 billion cut in income tax if his party is elected to government. He said the package would be financed entirely by the additional economic growth he anticipates from the UK rejoining the European Union’s single market and customs union.
Under the plan, the personal allowance—the threshold at which people start to pay income tax—would be raised to £15,000. The level at which taxpayers move into the 40p higher-rate band would also be increased by roughly £6,000, changes the party says would benefit middle earners and reduce the tax burden for many households.
Davey framed the proposal as part of an effort to broaden the Lib Dems’ electoral appeal, particularly among former Conservative voters. The announcement was pitched as a pragmatic offer to voters concerned about taxation and the cost of living, with the party arguing that renewed access to the single market and a customs union would unlock the growth needed to underwrite the cuts.
The speech, however, exposed fault lines within the party. Some Liberal Democrat MPs and activists who have pushed for a more ambitious or progressive economic programme expressed disappointment, arguing the plan fell short of a bolder vision. The leader’s reliance on optimistic growth forecasts tied to EU re-entry also sets up a politically charged debate about feasibility and timing.
Campaigners and opponents are likely to scrutinise the mechanics of how the promised growth would translate into a sustainable fiscal commitment, and whether the assumptions underpinning the estimate of £17bn are realistic. The pledge adds to a broader conversation about the Lib Dems’ economic priorities as they seek to differentiate themselves from both the Conservatives and Labour ahead of the next general election.