Calunius Capital’s Perrin Blasts New Attacks on UK Litigation Funding
Third-party funders are once again in the cross-hairs—and one of the sector’s elder statesmen is firing back. In a forthright essay published today, Calunius Capital chairman Leslie Perrin argues that Britain’s collective redress regime “cannot survive” if fresh assaults on funder fees succeed.
In an article in Solicitors Journal, Perrin points to two flashpoints: the UK Supreme Court’s 2023 PACCAR ruling, which invalidated percentage-based funding agreements, and a new bid in Neill v Sony to outlaw multiples-based returns as well. At the same time, the Competition Appeal Tribunal is facing a judicial-review challenge from funder Innsworth over its decision to slash the funder’s recovery in the landmark £200 million Merricks v Mastercard settlement—an intervention Perrin calls “dangerously simplistic.”
Perrin’s broader thesis is that without well-capitalised funders prepared to shoulder adverse-costs risk, consumers will be left “stranded” against well-resourced corporate defendants and the CAT’s promise of affordable group litigation will wither. Perrin also takes aim at lobbying by the U.S. Chamber of Commerce, which he says seeks to “promote opposition to litigation funding” under the guise of economic prudence. In place of curbs, he backs the Civil Justice Council’s recommendation for legislation reversing PACCAR retrospectively and prospectively.
If Westminster heeds those warnings, UK funders could regain certainty and renew their commitment to competition-class actions. But if further fee-caps or invalidations emerge, capital will flee to jurisdictions with clearer rules—leaving an access-to-justice gap just as collective-action appetite is peaking. Whether Innsworth’s challenge succeeds may therefore set the tone for the next chapter of UK litigation finance.

