Broader anti-avoidance provisions for share for share exchange and schemes of reconstruction
The Government has introduced wider anti-avoidance provisions which are set to apply to share for share exchanges and schemes of reconstruction.
These provisions will apply immediately (from 26 November 2025) to all such issue of shares or debentures made pursuant to such rollover relief provisions.
Rollover relief provisions (which apply in corporate reorganisation scenarios or "paper for paper" transactions where an acquiring company issues shares or securities in exchange for shares or securities in its target company) allow for CGT to be deferred until such time as the new shares or debentures are eventually disposed of, at which point any rolled over gain is crystallised. Rollover relief will not, however, be available unless the exchange or scheme of reconstruction was:
- effected for bona fide commercial reasons, and
- does not form part of a scheme or arrangements of which the main purpose, or one of the main purposes, is avoidance of liability to Capital Gains Tax or Corporation Tax.
The proposed legislative changes will apply the anti-avoidance provision to any "arrangements relating to an exchange or scheme of reconstruction" if the main purpose, or one of the main purposes of the arrangement is to reduce or avoid liability to corporation tax or capital gains tax.
This will capture not just the exchange or scheme of reconstruction itself, but any transaction or series of transactions related to it, potentially meaning that within a wider commercially driven transaction, the anti-avoidance provisions can apply to particular arrangements carried out by one or more parties. The proposed legislation sets out that flexible 'adjustments' are to be made "as are just and reasonable" to counteract any such reduction or avoidance of tax resulting from these arrangements, which shall include, "in an appropriate case", disapplying rollover relief. So, while the disapplication of rollover relief is not an automatic sanction of falling within this new provision, the change opens up an area of uncertainty as to what adjustment might, absent an HMRC assessment, be appropriate in these circumstances. The Government has also removed the carve-out to the application of this rule to shareholders holding not more than 5% of any class of share or debenture in the company being disposed of.
These measures are seemingly aimed at codifying HMRC's interpretation of the anti-avoidance provisions following several cases (including Wilkinson and Euromoney) which were decided against it on the basis that the transactions challenged were part of a wider transaction whose main purpose was not the avoidance of tax.
Whilst one would hope that most rollover transactions will be considered by HMRC to be commercially motivated, the tightening of the legislation in this way may set a worrying precedent in similar areas and is likely to increase nervousness about the risk of challenge. This may lead to an increase in applications for clearance from HMRC in order to obtain comfort.
Capital Gains Tax: non-resident capital gains
For a detailed discussion of the non-resident CGT changes , read our analysis of the Property tax announcements in Autumn Budget 2025.
Incorporation Relief Claims
Incorporation Relief applies where an individual transfers a business to a company as a going concern in exchange for shares issued by the company to the individual transferring the business and has the effect that the individual can rollover some or all of the gain on the disposal of the business into their shares in the company. Incorporation Relief applied automatically, subject the relevant conditions being met.
The Government has announced that, with effect from 6 April 2026, such relief will not be automatic, but will need to be claimed by the individual transferor in their self-assessment for the tax year in which the 'incorporation' took place.
This reform is forecasted to draw in £225m on the basis that this will ensure that the application of the relief will be more closely monitored by HMRC. However, the proposal will cost HMRC around £3.41m to carry out the changes to income tax self-assessment systems and to review such claims.
This measure will result in a further administrative requirement on incorporation, including the requirement to provide tax computations on the transfer of the business. In some ways this may help individuals transferring their business, providing a concrete paper trail of the base cost analysis of their shares, which should be helpful for founders on a future sale of their companies.