Question to the HM Treasury:

To ask the Chancellor of the Exchequer, with reference to the Budget Information Security Review, February 2026, paragraph 5.20, whether the Macpherson Principles will apply to the briefing of non-market sensitive Budget information.

As explained in paragraphs 5.1 to 5.5 of the Budget Information Security Review, the Macpherson Principles apply to: the economic and fiscal projections, the fiscal judgement and individual tax rates, reliefs and allowances.