The Office for Budget Responsibility (OBR) has released supplementary forecast information, providing a deeper dive into the costings of various policy proposals that featured in its November 2025 Economic and Fiscal Outlook (EFO). This move comes in response to numerous requests for more detailed breakdowns of the financial implications of these changes.
Among the key policies for which further details have been provided are adjustments to capital gains tax relief for qualifying disposals made to employee ownership trusts. Such trusts are designed to encourage employee ownership within companies, offering tax incentives for business owners who sell a controlling stake to their employees. The OBR's additional information sheds light on the expected revenue impact of these specific tax relief changes.
Moreover, the supplementary report details reforms to the non-domicile tax regime. The non-domicile status allows certain individuals residing in the UK to avoid paying UK tax on their overseas income and gains, provided these are not brought into the country. Proposed changes to this long-standing regime have been a frequent topic of political debate, with the OBR's updated costings offering a clearer picture of the potential financial effects of such reforms on government revenues.
Another notable policy highlighted in the OBR's update is the introduction of a high-value council tax surcharge. While specific details on the threshold for 'high-value' properties and the exact surcharge rates are typically outlined by the Government, the OBR's costings provide an independent assessment of the projected income this measure could generate for local authorities or the Treasury. This could have significant implications for homeowners in more expensive properties across the country.
These detailed costings are crucial for transparency and accountability, allowing Parliament, economists, and the public to better understand the fiscal assumptions underpinning future government policy. The OBR, as the UK's independent public finance watchdog, plays a vital role in scrutinising the government's fiscal plans and providing unbiased forecasts. Its latest release ensures that the economic and fiscal landscape presented in the November 2025 EFO is supported by robust and accessible data.
The Treasury, when formulating its fiscal strategy, relies on such detailed assessments to ensure that proposed policies are financially viable and align with broader economic objectives. The opposition parties often use OBR figures to critique government spending plans and propose alternative economic policies, making these supplementary details particularly relevant for the ongoing political discourse surrounding the nation's finances.
Source: Office for Budget Responsibility