Analysis

Update on Tax

Key Takeaway

Tax insurance is starting to be properly tested: notifications are rising as audit cycles bite, insurers are actively funding defence costs and advance tax payments, and early outcomes suggest the product is performing as intended when covered tax risks fall to be examined by tax authorities.

Tax insurance continues to experience significant growth and, as the audit cycle for policies placed over the past two to three years comes through, we are seeing a corresponding uplift in notifications. Once a matter is notified, insurers are generally prompt in confirming coverage and in commencing payment of contest costs. In parallel, they will typically instruct specialist external counsel to review the correspondence between the insured and the relevant tax authority, with a view to ensuring that the most robust, technically defensible position is advanced in any engagement.

Insurer data in Figure 35 indicates that the majority of notifications(around 70%) remain in the pre‑assessment phase. That said, there is a growing cohort of claims where adverse assessments have been issued, triggering both advance tax payments and the funding of contest costs under the policy. This is consistent with our own experience: our claims team is now seeing an influx of notifications under policies placed over the past three years and is actively handling a number of tax assessment matters in which insurers are engaged and meeting contest costs.

Although the product is still relatively young, it is important to remember that these policies are written on the basis of a defendable position, typically diligenced by tax experts at placement. In theory, this should mean that tax liabilities, and therefore insurer payments, only arise where the underlying diligence proves to be flawed or where the tax authority takes a more aggressive stance than anticipated. Early market statistics showing payment of advance tax, contest costs, and other amounts on approximately 31% of notifications, suggest that the product is functioning broadly as intended: providing meaningful financial support when a defended position is tested.

Figure 35: Insurer Survey Data: Progress of Notified Tax Policy Claims (2017–Q4 2025)