TL;DR
Critical illness cover pays a lump sum on diagnosis of a specified condition but policies vary significantly in which conditions are covered and how severe they must be. The definition of each condition, not just the list of conditions, determines whether a claim is paid. Always read the policy definitions, not just the marketing summary.
Last reviewed: June 2026 | Sources: FCA, ABI
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Insurance Key Facts: Critical Illness Cover Pays out on: diagnosis of specified conditionKey variable: condition definitions, not just listCombined policies: life + CI, check payout structurePre-existing conditions: typically excludedRegulator: FCA |
What critical illness cover does and does not do
Critical illness cover pays a tax-free lump sum if you are diagnosed with a condition specified in the policy and meet the severity definition for that condition. It does not pay on every serious illness — only those on the policy's specific list, and only where the diagnosis meets the policy's definition of severity. Income protection insurance, which covers inability to work, is a separate product addressing a different risk.
The risks most people do not check before buying
The condition definitions determine whether claims are paid, not the condition list. Two policies may both list heart attack as a covered condition, but define it differently. One may require raised cardiac enzymes above a specific threshold; another may require a specified degree of permanent myocardial damage. A claim paid under one policy's definition may be declined under another's. The definitions section of the policy document, not the summary, is the critical document.
The number of covered conditions varies significantly between insurers. Some policies cover 40 conditions; others cover over 100. However, a policy with more conditions listed is not necessarily better if the additional conditions are rare or the definitions for the core conditions are more restrictive.
Combined life and critical illness policies may pay out only once. Many policies combine life cover and critical illness cover. If the critical illness benefit is paid on diagnosis, the life cover may be extinguished, leaving no death benefit. Separate standalone policies avoid this.
Pre-existing conditions are excluded from standard underwriting. Any condition diagnosed or treated before the policy start date is typically excluded from cover. Failure to disclose a pre-existing condition can void the entire policy on a claim.
Children's critical illness cover terms vary. Many adult policies include limited children's critical illness cover as a rider. The conditions covered and benefit amounts for children are usually different from the adult policy. Check the specific children's terms if this is a deciding factor.
What to verify before buying
Read the full policy definitions for the five most commonly claimed conditions: cancer, heart attack, stroke, multiple sclerosis and coronary artery bypass. Compare definitions between insurers, not just the condition list length or premium. Ask the insurer or broker for the claim statistics: what percentage of claims were paid and what were the most common reasons for declined claims.
Where to complain
Disputed critical illness claims are among the most common subjects at the Financial Ombudsman Service. If a claim is declined, obtain the specific reason in writing and challenge the application of the definition if you believe the medical evidence supports a different interpretation.
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Disclaimer This article is for information only and does not constitute regulated financial advice. Always verify current terms with relevant providers and seek regulated advice for your specific circumstances. Kael Tripton Ltd is an independent editorial publisher and is not regulated by the FCA. |
Frequently asked questions
What is the difference between critical illness cover and income protection?
Critical illness cover pays a lump sum on diagnosis of a specified condition. Income protection pays a monthly income if you cannot work due to illness or injury, regardless of the specific diagnosis. They address different risks and many financial advisers recommend both.
Does critical illness cover pay out for mental health conditions?
Standard critical illness policies do not typically cover mental health conditions. Some specialist policies or optional riders may provide limited mental health cover. Income protection is more commonly used to cover absence from work due to mental health conditions.
Can I get critical illness cover if I have a pre-existing condition?
Yes, but the pre-existing condition will typically be excluded from cover. Some conditions may result in a premium loading. Full disclosure of medical history at application is essential to avoid a void policy on a claim.
When should I buy critical illness cover?
Premiums increase significantly with age and the availability of cover reduces if health conditions develop. Buying earlier locks in lower premiums and secures cover before exclusions become relevant. Review the need for cover when taking on significant financial commitments such as a mortgage.
Is critical illness cover the same as life insurance?
No. Life insurance pays on death. Critical illness cover pays on diagnosis of a specified condition, whether or not death results. Many people need both products to cover different financial risks.
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Sources FCA: Protection Insurance Consumer Information |
