William Andrew Tinkler v The Commissioners For HMRC
Decision date: 19 August 2025
Neutral citation: [2025] UKFTT 1016 (TC)
Overall AI summary confidence: medium
Short overview
This short overview is intended to summarise the case, issues and outcome so far as they are supported by the judgment.
AI confidence in this short overview: medium
This appeal concerned whether HMRC could advance (and the Tribunal decide) statutory and valuation arguments not expressly named in closure notices amending Mr Tinkler’s returns for his combined horse-breeding-and-racing business. The Tribunal treated the scope of the closure notices as a preliminary issue, held that HMRC may run its Section 66 (restriction on loss relief) argument for all years except 2013–14 and may rely on the GAAP/stock valuation issue for all years (including 2013–14), and gave permission for the appellant to amend grounds and issued directions for further case management.
Ratio decidendi
This summary is intended to identify the ratio decidendi, meaning the legal reasons for deciding and the binding part of the decision.
AI confidence in this ratio decidendi summary: medium
The judgment supports that a broadly drafted conclusion in a closure notice (for example, that “your trade loss has been overstated”) can permit HMRC to advance statutory or valuation arguments that address the same identified subject matter even if those specific arguments are not named; and that a tribunal may determine the scope of closure notices as a preliminary issue where the question is principally one of law, will assist case management, and is in the interests of justice.
Obiter dicta
This summary is intended to identify obiter dicta, meaning observations made by the way that were not necessary to deciding the case and are not binding.
AI confidence in this obiter dicta summary: medium
The decision indicates that contemporaneous correspondence and earlier enquiry materials (such as meeting notes and the appellant’s appeal letter) can be read in context to inform what issues fall within the scope of a closure notice. It also observes that deciding scope preliminarily may risk delay from possible appeals but can be justified if it reduces overall cost and aids case management.