You are using an outdated browser. Upgrade your browser today for a better experience of this site and many others.

Expansion of 'uncertain tax treatment' rules cause for concern

Government plans to extend the rules requiring some taxpayers to declare 'uncertain' tax positions risk creating more uncertainty, compliance burdens and tax disputes according to the CIOT.

Government plans to extend the rules requiring some taxpayers to declare 'uncertain' tax positions risk creating more uncertainty, compliance burdens and tax disputes according to the CIOT.

The uncertain tax treatment regime currently requires large businesses to flag uncertain interpretations of tax law to HMRC upfront if significant amounts of money are at stake.

The government is proposing to turn it into a much wider transparency regime, reaching beyond large businesses into individuals and trusts, expanding to cover additional taxes and potentially introducing a new, much broader trigger for notification.

The CIOT is warning that the proposed third trigger - where there is more than one 'credible' interpretation and HMRC's view is not known - is too subjective to work effectively in practice.

Lauren Fletcher, CIOT Tax Technical Senior Manager, said:

'These proposals would expand the uncertain tax treatment rules to more taxpayers, more taxes and a broader set of uncertainties - a potentially significant compliance expansion. But they are unworkable in their current form and need further development before any legislation is brought forward.

'The government is right to want to reduce the 'legal interpretation' tax gap and give taxpayers more certainty. But these proposals risk doing the opposite regarding certainty. A notification regime should provide clarity, not create a fresh layer of uncertainty around whether a taxpayer is required to notify in the first place.'

Internet link: CIOT

Copyright

© 2026 A.M. Accountants Limited. All rights reserved.

We use cookies on this website, you can find more information about cookies here.
Contact Us

Please call:
020 8348 3378

Quick links

Home | Contact us | Site map | Accessibility | Disclaimer | Help |

Address
A.M. Accountants Limited, 63 Highgate High Street, Highgate, London N6 5JX

Registered as auditors and regulated for a range of investment business activities in the United Kingdom by the Association of Chartered Certified Accountants.
A.M. Accountants Limited, Company number 04251430, Registered in England and Wales, Registered office address 63 Highgate High Street, Highgate, London N6 5JX