This episode explores the essential duties of policyholders within an insurance contract. We cover the fundamental responsibilities expected of policyholders, including the duty of disclosure, the duty to act in good faith, and the obligation to prevent loss. Drawing from the Insurance Law Handbook, we analyse how these duties impact policy validity, including the consequences of non-compliance, such as policy voidance or denial of claims. Additionally, the episode delves into the evolving legal standards surrounding these duties, examining case law and regulatory guidelines that shape policyholder conduct in insurance law. This session is vital for understanding the policyholder's role in maintaining a valid and enforceable insurance contract.