Written by Samuel O’Toole | September 4, 2025
Passing off refers to an act of unregistered trade mark infringement in the UK. It can be a very useful and flexible tool in the battle against infringers but there are some advantages and disadvantages to it.
What is passing off
In order for a passing off claim to be successful, a claimant (the party asserting the rights) needs to prove:
Each of these criteria will need to be proved to the “balance of probabilities”, this being that it is more likely to be true than not.
Passing off is a common law tort, this means that there is no definition found within the statute books but rather its ingredients are found in case law.
Passing off can be flexible in its application, this is something that can be seen in the case of Fenty & Ors v Arcadia & Anr (https://www.judiciary.uk/wp-content/uploads/2015/01/fenty-others-v-arcadia-others1.pdf). In this case Rihanna was successful in her argument that t-shirts sold by Top Shop bearing a picture of Rihanna amounted to passing off.
Pros
Cons
Summary
Passing off is a very useful tool to be used against infringers. However, it often works best as part of a sensible IP protection strategy that will involve registered IP rights (such as trade marks and design rights). This is predominantly due to the high evidential burden (and cost) associated with a passing off claim.
The creation of a suitable IP protection strategy will almost always certainly involve consideration towards passing off but it should not usually be the only IP right a party intends to rely on.
Our specialist lawyers here at Briffa are here to help to provide advice tailored to your specific circumstances. Please do not hesitate to contact us at info@briffa.com or on 0207 096 2779 for an initial free consultation.
Written by Sam O’Toole – Senior Associate
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