Ed Davey promises tax cuts for millions if UK rejoins EU single market

by | Sep 23, 2026 | Business

Ed Davey promises tax cuts for millions if UK rejoins EU single market

Sir Ed Davey announced a tax-cutting platform at the Liberal Democrat party conference, proposing to increase the annual tax-free personal allowance from its current level to £15,000 and to raise the 40p income tax threshold to £56,000. The party says these changes would deliver an average tax reduction of £680 for most workers through a £17bn package. The implementation of the full policy would not occur until the fifth year of a potential Lib Dem government, a timeframe that could extend up to eight years in the future.

The party plans to finance these cuts through economic expansion resulting from the UK’s rejoining of the EU single market and customs union. Under the proposed schedule, the party would unfreeze personal allowances in year two of a Lib Dem administration, allowing them to rise with inflation, before introducing substantial tax cuts in year five once the economic benefits of enhanced EU trade relationships have materialized. The plan is contingent on the party’s ability to negotiate a closer trading arrangement with the EU within 12 months of taking power. The Lib Dems estimate an additional £27bn in revenue from a proposed growth and defence pact with the EU to fund the broader policy agenda.

Independent fiscal analysis has raised questions about the party’s cost projections. The Institute for Fiscal Studies suggested the total expense of the Lib Dem package would exceed the £17bn figure cited by the party. For comparison, the Reform UK party has proposed raising the income tax allowance to £15,000 within 100 days of taking power, with estimates placing that policy’s cost at £21bn by year five. Sir Davey positioned the tax cut as a distinguishing feature between the Lib Dems and Reform, characterizing the latter’s approach as relying on reductions to disability support.

The tax policy announcement reflects efforts by the Lib Dems to broaden electoral appeal among voters in traditionally Conservative-leaning constituencies. Sir Davey used his conference address to differentiate his party from other political movements, delivering criticism of Reform UK and the Conservative Party while highlighting policy disagreements with the Labour government on European integration and artificial intelligence governance.

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