Question to the HM Treasury:

To ask His Majesty's Government what steps they are taking to update His Majesty's Revenue and Customs technology to avoid the miscalculation of capital gains tax in the future.

Following the changes to the rates of Capital Gains Tax (CGT) announced at the Budget in 2024, customers and agents need to take additional steps to ensure the correct tax is accounted for, if they made disposals on or after 30 October 2024. HMRC have provided an online calculator and detailed guidance to support customers to work out the correct amount of CGT that is due, and this is clearly signposted when they complete their online tax return. For the 2025 to 2026 tax year these rate changes will be fully integrated in HMRC’s systems.