CAT confirms wide CMO margin in National Lottery case
On 26 February 2026, the Competition Appeal Tribunal (CAT) dismissed a subsidy control challenge in The New Lottery Company v Gambling Commission. The challenge concerned the Gambling Commission’s July 2023 decision to allow £70.21m of National Lottery surplus to be retained and invested in marketing. The CAT accepted the measure involved revenue foregone, but held no subsidy was granted because the decision was consistent with normal market conditions under the Commercial Market Operator (CMO) principle.
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Key points (CMO principle) the CAT determined
The CAT accepted that in substance allowing the revenue to be used for marketing amounted to the public authority foregoing revenue it would otherwise have received (thereby capable of conferring an economic advantage under s.3(2) of the Subsidy Control Act 2022).
Even where an advantage exists, there is ‘no subsidy’ if the transaction is consistent with normal market conditions. The question is whether no rational private operator would have entered into the deal on those terms. The CAT held that it could not be said that a rational private investor would refuse the transaction; it fell within a wide margin of commercial judgment.
The absence of an obvious market comparator (because only Camelot could make the investment decision at that stage) did not prevent applying the CMO principle. The focus is whether there is objective, verifiable evidence that the arrangement resembles common commercial behaviour (here, the CAT likened it to joint marketing investments seen in ordinary commercial relationships).
To decide if the deal was commercial, you have to look at what each side was expected to gain and whether the gains were shared in a reasonable way. The CAT reviewed the forecasts and Camelot’s extra commitments and said the Gambling Commission was entitled to decide the deal was within the range a sensible private business could agree. The challengers’ argument about “indirect benefits” failed because they didn’t provide evidence to prove or value those benefits.
Under s.70(5), the CAT applies judicial review principles. The focus is on the decision maker’s reasoning process not re running analysis after the fact. Applicants must show irrationality (outside the range of reasonable commercial outcomes) or a demonstrables flaws in their reasoning.
Practical takeaway
- Public authorities should record an ‘audit ready’ CMO rationale covering: commercial objectives, expected return, key assumptions and why the terms sit within the range of normal market behaviour
- Carefully evidenced commercial decision making is likely to attract a wide margin of appreciation, making CMO challenges difficult unless clear irrationality or reasoning flaws can be demonstrated
The content of this page is a summary of the law in force at the date of publication and is not exhaustive, nor does it contain definitive advice. Specialist legal advice should be sought in relation to any queries that may arise.
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