Written Question·Treasury·UIN 95104

Corporation Tax: Tax Allowances

Tabled: 27 November 2025
Answered: 4 December 2025

Question

Mims Davies

ConservativeEast Grinstead and Uckfield

To ask the Chancellor of the Exchequer, what assessment she has made of the potential impact of reducing the writing-down allowance main rate in corporation tax on businesses in Sussex.

Answer

Dan Tomlinson
Since the introduction of full expensing, most businesses now claim first-year allowances, such as full expensing and the Annual Investment Allowance (AIA), to claim relief on their investments, with 99% of businesses investing under the AIA’s £1 million ...

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