Cut Adrift Get your personalised plan →

Making Insurance Claims After a Diagnosis in the UK

People often have more insurance cover than they realise — including policies arranged through an employer or taken out years ago. After a serious diagnosis, checking every possible source of cover is one of the most important practical steps you can take. This guide explains what to look for, how claims work, and what to do if a claim is refused. If you'd rather have a plan built around your situation, answer a few questions and we'll build one around you →

Types of policy to check

Do not cancel or change any policy while you're working out what you hold. Some policies pay out on diagnosis alone, and cancelling now could forfeit an entitlement. Check everything first, then decide what to do.

Group schemes through your employer

Employer-provided group insurance is easily overlooked because the employer typically arranges it and pays the premium — it may not appear prominently in your pay documents. Check your employment contract and staff handbook, or ask your HR department, about the following:

If you have left a previous employer in the past few years, ask whether their group scheme offered a continuation option — a right to convert group cover into a personal policy without further underwriting when you left employment. If you exercised this option, you may hold a standalone policy you've lost track of.

Finding forgotten or lost policies

Cover from earlier in your life — a policy taken out with a previous employer, a mortgage lender, or a financial adviser — can easily be lost track of. Here is where to look:

Critical illness cover — how definition matching works

Critical illness cover is more specific than it appears. Receiving a diagnosis of a condition listed in your policy is not automatically enough to trigger a claim — the diagnosis must match the policy's own definition of that condition. These definitions are precise, and they vary between insurers and between policy generations.

Common points where definitions matter:

To give a claim the best chance:

Income protection — understanding the definitions

Income protection policies use one of three definitions to determine whether you qualify for benefit, and the definition in your policy makes a substantial difference to your chances of a successful claim:

Also check:

How to make a claim

The process is broadly similar across policy types. Do not wait until you have gathered all your documents before contacting the insurer — notify them as soon as you decide to claim, then gather what's needed.

How UK insurance is regulated

Insurance in the UK is regulated by two bodies, both of which have a role in protecting policyholders:

If you believe an insurer is not complying with FCA rules in how they're handling your claim — for example by unreasonably delaying a decision, requesting unnecessary information, or applying policy terms in a way that breaches fair treatment obligations — you can report this to the FCA at fca.org.uk/consumers/complaints-against-us, although the FCA does not resolve individual disputes. Individual complaints are handled by the Financial Ombudsman Service (see below).

If your claim is declined

A declined claim is not final. You have a clear, free escalation path — and insurers know that the Financial Ombudsman Service frequently overturns declined claims.

Step 1 — Internal complaints procedure

Before going elsewhere, you must first make a formal complaint through the insurer's internal complaints process. Write to the insurer setting out clearly why you believe the decision was wrong, referencing the relevant policy definition and the medical evidence. Ask for all documents and information the insurer relied upon in reaching their decision — they are required to provide this.

Under FCA rules, the insurer must send you a final response letter within eight weeks of receiving your complaint. The final response must either resolve your complaint or explain why they maintain their position. Keep this letter — it is the trigger for the next step.

Step 2 — Financial Ombudsman Service (FOS)

If the internal process does not resolve your complaint, you can escalate to the Financial Ombudsman Service (FOS) — a free, independent statutory body with the power to make binding decisions on insurers.

FOS covers all FCA-regulated insurance, including life insurance, critical illness cover, income protection, MPPI, and PMI. FOS caseworkers review the insurer's decision impartially and can direct the insurer to pay a claim, pay redress, or take other action. FOS decisions are binding on the insurer if you accept them; if you don't agree with the FOS decision, you remain free to pursue the matter through the courts instead.

For large or complex disputed claims, it is also worth consulting a solicitor who specialises in insurance law. Many work on a conditional fee (no win, no fee) basis for insurance disputes. An independent solicitor can advise on whether your case is worth pursuing through FOS or through the courts, and can help you frame the legal arguments.

No no-fault personal injury scheme in the UK

New Zealand has the Accident Compensation Corporation (ACC), a no-fault scheme that compensates all injury regardless of cause. The UK has no equivalent. If you are ill — rather than injured at work — the main sources of financial support are personal insurance, NHS treatment (free), and the state benefit system.

Two exceptions are worth knowing about:

For illness that is not work-related, NHS treatment is free, and state benefits (Universal Credit, ESA, PIP) provide income and disability support. Personal insurance remains the main financial protection above the state floor.

Getting help with a claim

Insurance policy wording is technical, definitions are interpreted strictly, and the medical evidence requirements can be exacting. If you are unsure whether your diagnosis meets a policy definition, are dealing with a complex claim, or have had a claim declined, consider getting professional help before accepting the insurer's decision as final.

Work through your situation step by step with the diagnosis tool →

This guide provides general information only — not legal, financial, medical, or insurance advice. Policy terms, definitions, and regulatory rules change over time. Verify current details with your insurer, the FCA register, and the Financial Ombudsman Service before making decisions. Information current as of June 2026.