The debate over the deductibility of payments made in the context of settling regulatory investigations in ScottishPower SCPL Ltd v HMRC continues to raise fundamental questions of how a taxpayer’s trading profits should be determined for tax purposes – with varying conclusions reached at every stage so far. The recently published decision of the Court of Appealopens in a new tab represents an important win for the taxpayer, with potentially broad implications.
It is relatively easy to identify case law demonstrating that at least some penalties are non-deductible; it is rather harder to extract from that case law principles capable of explaining why this should be so in a way which makes sense of all the authorities. Lord Hoffmann famously attempted the feat in the decision of the House of Lords in McKnight v Sheppard [1999] 1 WLR 1333, but the intended meaning of key aspects of his explanation has itself simply become part of the conundrum.
The Court of Appeal considered two ways in which a disallowance of penalties could be justified:
- The first was to say that penalties belong to that small category of costs which are inherently incapable of being incurred ‘for the purposes of the trade’ and so are necessarily disallowable under the ‘wholly and exclusively’ rule. (Other well-known examples of costs of this kind being the costs of ceasing to trade, or corporation tax itself.); and
- The second was to say that there exists a ‘judge-made’ rule of law (identified in cases such as CIR v Alexander von Glehn & Co Ltd [1920] 2 KB 553) requiring certain penalties to be disallowed.