Question to the HM Treasury:

To ask the Chancellor of the Exchequer, whether her Department has issued new impact assessments on (a) Agricultural Property Relief and (b) Business Property Relief since Autumn Budget 2024; what schedule her Department has for publishing future impact assessments; and what data sources her Department used to determine the estimate of 2,000 affected estates per year.

The Government believes its reforms to agricultural property relief and business property relief from 6 April 2026 get the balance right between supporting farms and businesses, and fixing the public finances. The reforms reduce the inheritance tax advantages available to owners of agricultural and business assets, but still mean those assets will be taxed at a much lower effective rate than most other assets. Despite a tough fiscal context, the Government will maintain very significant levels of relief from inheritance tax beyond what is available to others and compared to the position before 1992.

Information from claims is not recorded to enable regional breakdowns of the number of estates expected to be affected. However, the reforms are expected to result in up to 520 estates claiming agricultural property relief, including those also claiming business property relief, in 2026-27 paying more inheritance tax. Almost three-quarters of estates claiming agricultural property relief, including those that also claim for business property relief, will not pay any more tax as a result of the changes in 2026-27, based on the latest available data.

The Government has also set out that around 1,500 estates across the UK only claiming business property relief are expected to be affected in 2026-27, with around 1,000 of these expected to only hold shares designated as “not listed” on the markets of recognised stock exchanges, such as the Alternative Investment Market. The remaining 500 estates will include business assets from sectors across the economy that are eligible for business property relief. Around three-quarters of estates claiming business property relief in 2026-27 (excluding those only relating to holding shares designated as “not listed”) will not pay any more inheritance tax in 2026-27.

The tax base consists of all estates subject to inheritance tax that are projected to claim agricultural property relief or business property relief across the scorecard period. The tax base is estimated using HMRC administrative data, and is grown over the forecast in line with the Office for Budget Responsibility’s forecast for inheritance tax receipts. More detail on the Government’s estimates, including why these projections should be viewed as a maximum, are also available in a letter from the Chancellor of the Exchequer to the Chair of the Treasury Select Committee in November 2024, which is available at committees.parliament.uk/publications/45691/documents/226235/default/.

In accordance with standard practice, a tax information and impact note will be published alongside the draft legislation before the relevant Finance Bill.