Key Takeaway

Critical illness cover pays a tax-free lump sum if you are diagnosed with a specified serious illness and survive a set period (typically 14 to 30 days). Core conditions such as cancer, heart attack, stroke, and major organ transplant are covered by nearly all UK policies, while the exact number and definitions of conditions vary by insurer. When choosing cover, compare the breadth of conditions, the definitions used (some are stricter than others), exclusions, survival periods, and whether premiums are guaranteed or reviewable.

Core Conditions Covered

Most UK critical illness policies cover a standard set of serious conditions. According to the Association of British Insurers, the majority of claims are for cancer, heart attack, and stroke, which are included in every policy. Other core conditions typically covered include:

  • Cancer (excluding less advanced cases)
  • Heart attack (of specified severity)
  • Stroke (resulting in lasting symptoms)
  • Coronary artery bypass surgery
  • Major organ transplant (heart, lung, liver, kidney, pancreas, bone marrow)
  • Kidney failure requiring dialysis
  • Multiple sclerosis
  • Motor neurone disease
  • Parkinson’s disease
  • Total permanent disability

Policies vary in the total number of conditions covered, from around 40 to over 150. More conditions does not always mean better cover: the definitions and exclusions matter more than the count. Read the policy wording carefully to understand what qualifies.

Exclusions and Survival Periods

Critical illness cover comes with important exclusions. Pre-existing conditions (illnesses you had or knew about before taking out the policy) are typically not covered. Many policies exclude cancers diagnosed in the first 90 days (the moratorium period), conditions caused by self-inflicted injury, or illnesses linked to alcohol or drug abuse.

A survival period applies to most claims. You must survive for a set number of days after diagnosis (usually 14 to 30 days, depending on the insurer) for the claim to be valid. This ensures the condition is genuinely serious and lasting. Some conditions, such as total permanent disability, may have longer waiting periods.

Partial or additional payments may be available for less severe conditions (for example, early-stage cancers, less severe heart attacks, or loss of sight in one eye). These typically pay a percentage of the full sum assured and are an optional extra on some policies.

What to Look for When Choosing a Policy

When comparing critical illness policies, focus on these factors:

Definitions: Insurers use different definitions for the same condition. A heart attack may be defined by a certain level of cardiac enzyme release or permanent heart damage. Stroke definitions vary in the severity of lasting symptoms required. Stricter definitions mean fewer claims are paid. Ask for the policy wording before you buy and check the definitions of the conditions most relevant to your circumstances.

Read also: How to Calculate Critical Illness Cover in the UK Beyond Employer Sick Pay

Sum assured: Choose a lump sum that would cover your mortgage, other debts, and living expenses for a period if you could not work. The cover amount remains level throughout the term unless you choose increasing cover (which costs more).

Premiums: Guaranteed premiums stay the same for the policy term, while reviewable premiums can increase based on the insurer’s claims experience. Reviewable policies are cheaper initially but can become expensive later. Most UK critical illness policies offer guaranteed premiums.

Standalone or combined: Critical illness cover can be bought as a standalone policy or combined with life insurance. A combined policy pays out once (either on critical illness diagnosis or death), after which the policy ends. Two separate policies cost more but pay out twice if needed.

Exclusions and limits: Check for age limits, maximum cover amounts, and any specific exclusions that apply to your medical history or occupation.

Next Steps

If you are considering critical illness cover, compare quotes from several FCA-authorised insurers or use a regulated adviser to find a policy that matches your circumstances and budget. Read the policy wording, especially the definitions and exclusions, before you commit. Verify current terms and premiums with an FCA-authorised adviser or the insurer directly, as cover details and availability vary by provider and by individual application.

Disclaimer: This article provides general information only and is not regulated financial advice. We are not authorised by the Financial Conduct Authority. Critical illness cover policies vary significantly by insurer, and the definitions, exclusions, and terms described here are indicative. You should read the policy wording and key facts document for any policy you are considering and speak to an FCA-authorised insurance adviser to confirm which cover is suitable for your personal circumstances and health history before making a decision.