8 Autumn Budget | 28 October 2026 Capital taxes Capital gains tax (CGT) annual exempt amount The CGT annual exempt amount for individuals and personal representatives will remain at £3,000 for 2027/28. The annual exempt amount for most trusts will stay at £1,500 (minimum £300). CGT rates The lower main rate of CGT will remain at 18%, and the higher main rate will remain at 24%, for disposals made in 2027/28. Inheritance tax (IHT) The IHT nil rate band will remain at £325,000 and the residence nil rate band will stay at £175,000, with its associated taper threshold remaining at £2 million. These levels are frozen to the end of 2030/31. With effect for deaths and other chargeable events occurring on or after 28 October 2026, the IHT legislation will be amended to align the treatment of liabilities affecting trust property with personal liabilities, and to strengthen anti-avoidance provisions. Business assets disposal relief (BADR) For disposals made on or after 6 April 2027, the lifetime limit on gains eligible for BADR will be cut from £1 million to £500,000. CGT Founders’ Relief Following a technical consultation, a new Founders’ Relief will be introduced from 6 April 2027, providing a 10% CGT rate on up to £10 million of lifetime gains for qualifying founders of high-growth, innovative companies. Stamp duty on shares Following two rounds of consultation and the publication of draft legislation in July, the Finance Bill will introduce the Securities Transfer Tax to replace stamp duty and stamp duty reserve tax from late 2027. Think ahead Check the capital gains figures on your tax return are correct. In 2025/26 HMRC ‘recovered’ nearly £500 million in CGT because of increased activity by its compliance staff helped by greater use of AI.
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