Litigation is no longer funded only by the people and businesses bringing a case. A growing market of third-party capital is financing legal disputes in exchange for a share of any eventual recovery. That money can help claimants pursue expensive cases, but it can also change the economics of how long disputes run, how much they cost and how insurers assess liability risk.
The market has grown beyond a niche financing mechanism. The NAIC has cited a US$17 billion global litigation-funding industry, based on 2021 data, with more than half of that capital deployed in the United States. More recent European research puts litigation-funding investment in the region at more than €3 billion, with further growth expected as collective actions and other forms of large-scale litigation expand.
For insurers, the importance of litigation funding lies in what happens after a claim enters the legal system. Liability claims can already take years to resolve, particularly where damages are uncertain or multiple parties are involved. External capital can give plaintiffs the financial resources to continue funding lawyers, expert witnesses and other case costs without carrying the full expense themselves.
That does not mean litigation funding automatically creates larger claims. The relationship is more complicated. Funding is one factor within a broader system that includes social inflation, litigation strategies, legal advertising, plaintiff behaviour and changing jury outcomes. But as more outside capital enters the process, insurers have another variable to consider when estimating the eventual cost and duration of liability claims.
Litigation Funding is Becoming Part of the Claims Economy
The basic model is straightforward. A third-party funder provides money to support a legal claim and receives an agreed return if the case succeeds. The arrangement can help claimants pursue disputes that may otherwise be too expensive to sustain, particularly where cases require significant legal work or expert evidence.
For the insurance market, the financial effect can extend beyond the amount eventually awarded. A better-funded case may be able to run for longer, withstand settlement pressure and support more extensive legal work. That can increase defence costs and keep a liability claim open for longer, making the eventual financial outcome harder to predict.
This matters particularly for long-tail insurance lines. Insurers may write a policy today but only discover the final cost of a liability claim several years later. When the legal environment changes during that period, historical loss data can become a less reliable guide to future claims.
The connection with social inflation is therefore important. Recent research identifies litigation funding as one contributor to the broader increase in liability claims costs, alongside factors such as higher jury awards, changes in plaintiff strategies and expanding litigation activity.
The strongest way to understand the shift is to look at the claims process as an economic chain. External capital can affect the ability to sustain litigation, which can influence legal expenses and settlement dynamics, which can ultimately affect the cost an insurer has to reserve and pay.
Key takeaway: Litigation funding has grown into a meaningful source of capital for legal disputes, creating another financial factor for insurers to consider when assessing liability claims.
Litigation Funding is Adding a New Variable to Claims Economics
The insurance impact of litigation funding becomes clearer when a legal dispute moves beyond the initial claim and into a long-running liability process. The insurer is not only assessing the likely value of a settlement. It may also have to account for defence costs, expert fees, legal expenses and the possibility that a well-funded claimant can sustain a case for longer.
That matters because liability claims are often long-tail exposures. The final cost can remain uncertain for years, and changes in legal strategy or settlement behaviour can make historical loss experience less reliable. Swiss Re identifies litigation funding as one of several factors contributing to liability inflation, alongside legal-system changes, plaintiff strategies and rising verdict awards. It also notes that litigation funding can increase the resources available to plaintiffs and potentially contribute to longer cases and higher legal expenses.
The wider liability market is already dealing with higher severity. Recent academic research found that US plaintiff win probability increased by around 20% to 30% between 2009 and 2024, while case-mix-adjusted verdict awards increased by more than 100% between 2020 and 2024. Litigation funding is only one part of that broader change, but it adds another factor insurers need to understand when assessing the future cost of claims.
That can affect the economics of insurance in several ways. A longer claim can require more reserving over a longer period. Greater uncertainty can make pricing more difficult. Higher settlement expectations can affect the amount of liability capacity insurers are willing to provide, particularly in excess layers where a small number of severe claims can have a large impact on portfolio results.
Key takeaway: Litigation funding is one part of a wider liability environment in which claims outcomes and eventual insurance costs are becoming harder to predict.
Regulation is Catching Up with Litigation Capital
As litigation funding grows, regulators are increasingly interested in transparency around who is financing a claim and what financial interests may exist behind the litigation.
The UK is one example. Its Civil Justice Council reviewed third-party litigation funding in 2025, examining issues including regulation, funder returns, claimant protection, court oversight and conflicts of interest. The review reflects a broader question facing the market: how should a growing source of litigation capital be governed without undermining access to justice?
In the US, transparency is also becoming a more visible insurance issue. New measures are emerging around disclosure of litigation-funding arrangements, while proposed federal legislation has also focused on disclosure of certain funding relationships. For insurers, greater transparency can make it easier to understand who has an economic interest in a claim and how that could affect litigation strategy or settlement negotiations.
Europe is developing its own approach as collective actions and litigation funding expand. Recent European research estimates that more than €3 billion is currently invested in litigation funding, with further growth expected as collective redress mechanisms become more established.
This creates a more complex claims environment for multinational insurers. The role of litigation funding, its disclosure requirements and its effect on settlements can vary significantly by jurisdiction. A funding model that is common in one market may face very different legal or regulatory treatment elsewhere.
For insurers, that means the economics of a liability claim increasingly depend not only on the underlying loss, but also on the legal environment surrounding the dispute.
Conclusion
Litigation funding is becoming an important part of the wider economics of liability claims, but its impact should not be overstated. It is one contributor to a broader claims environment shaped by social inflation, larger verdicts, changing litigation strategies and rising legal costs.
For insurers, the growing availability of outside litigation capital means claims can become harder to assess over their full lifecycle. The financial impact can extend from defence costs and settlement values to reserves, pricing and the amount of liability capacity insurers are prepared to deploy.
The market is also moving toward greater scrutiny and transparency. As litigation funding expands across major insurance markets, insurers, regulators and courts will increasingly need to understand who is financing claims, what incentives exist and how that capital may affect settlement dynamics.
The real shift is therefore not simply that more money is entering litigation. It is that Litigation funding is becoming another variable insurers need to understand when measuring and pricing liability risk.