TL;DR
Life insurance with critical illness cover pays a lump sum if you die or are diagnosed with a specified serious illness during the term. Cancer accounts for about two-thirds of critical illness claims. Policies differ in how many conditions they cover, how they define them and whether they make partial payments, so the definitions matter as much as the price.
Key takeaways
- Critical illness cover pays a tax-free lump sum on diagnosis of a condition the policy covers.
- Cancer was behind about 65% of critical illness claims in 2025 (ABI).
- Definitions, partial payments and children's cover vary more between insurers than the headline number of conditions.
- Combined life and critical illness cover usually pays out once, on the first valid claim.
- Adding critical illness cover costs considerably more than life cover alone.
Life insurance pays out if you die during the policy term. Critical illness cover pays out if you are diagnosed with a serious illness the policy covers, such as many cancers, a heart attack or a stroke, and you survive a short period after diagnosis. Many people buy the two together so that their family or mortgage is protected either way.
How combined life and critical illness cover works
With a combined (or "accelerated") policy, you have one amount of cover. It pays out once: either on a valid critical illness claim or on death, whichever comes first. After a critical illness payout, the policy usually ends.
With standalone critical illness cover alongside separate life cover, a critical illness claim does not reduce the life cover. This costs more but means the family could still receive a payout later.
What critical illness cover usually includes
Most UK policies cover a core set of conditions that follow the Association of British Insurers' minimum standards, including:
- Cancer (above a defined level of severity)
- Heart attack (of specified severity)
- Stroke (resulting in permanent symptoms)
- Kidney failure
- Major organ transplant
- Multiple sclerosis
- Parkinson's disease
- Motor neurone disease
Many insurers cover many more conditions, and many also include:
- Partial payments for less severe conditions, such as some early-stage cancers, often paid without reducing the main cover.
- Children's cover, a smaller payment if a child is diagnosed with a covered condition.
- Total permanent disability cover, on some policies.
Why definitions matter more than the number of conditions
A policy that lists 100 conditions isn't necessarily better than one that lists 50. What matters is how each condition is defined, because a claim is assessed against that wording. For example, two policies can define a heart attack or a cancer differently, and one may pay where the other does not. Compare the definitions of the conditions most likely to lead to a claim, particularly cancer, heart attack and stroke, and check what partial payments are available.
Do critical illness claims get paid?
According to the Association of British Insurers (ABI) and Group Risk Development (GRiD), insurers paid £1.25 billion in individual critical illness claims in 2025, and about 90% of new critical illness claims were paid. Cancer was behind about 65% of claims. Common reasons for a claim being declined are that the condition did not meet the policy definition, or that relevant medical history was not disclosed when the policy started.
How much does life and critical illness cover cost?
Adding critical illness cover usually costs considerably more than life cover alone, because the chance of a serious illness during a long term is much higher than the chance of death. For reference, Which? found in April 2026 that £200,000 of life-only level term cover over 25 years averaged about £8.20 a month for a 31-year-old non-smoker. Expect a combined policy for the same amount to cost several times more.
The price depends on:
- Your age and health
- Smoking status
- Amount of cover and length of the term
- Combined or standalone cover
- Level or decreasing cover
- The insurer's range of conditions and definitions
See the average cost of term life insurance for life-only prices by age.
Critical illness cover or income protection?
They solve different problems:
- Critical illness cover pays one lump sum on diagnosis of a covered condition. Useful for repaying a mortgage or paying for adaptations or treatment.
- Income protection pays a monthly income if you cannot work because of any illness or injury the policy covers, until you return to work or the policy ends. It covers far more causes of absence, including back problems and mental health conditions.
Many people consider both. See income protection for the self-employed.
How to choose a policy
- Decide on the amount and term. Many people aim to cover a mortgage or a period of lost income.
- Choose combined or standalone cover, depending on budget and whether you want life cover to remain after a claim.
- Compare definitions for cancer, heart attack and stroke.
- Check partial payments and children's cover.
- Disclose your medical history fully on the application.
- Consider writing the policy in trust so a death payout reaches the right people quickly.
Get a quote
WeCovr is an FCA-regulated broking firm. Get a quote through WeCovr, and a specialist from WeCovr or one of its broker partners will help you compare life and critical illness cover from a range of UK insurers, including how each one defines the conditions that matter most. Brokers are usually paid a commission by the insurer when a policy is arranged.
Get a life and critical illness quote
Frequently asked questions
Is critical illness cover worth it?
What is the most common critical illness claim?
Is a critical illness payout taxed?
Can I get critical illness cover after cancer?
Sources
- Association of British Insurers and Group Risk Development: protection claims figures for 2025, published June 2026
- Association of British Insurers: Guide to Minimum Standards for Critical Illness Cover
- Which?: "More people are looking for affordable life insurance, but what does it actually cost?", April 2026
Important Information and Risks
No advice: This article is for general information only. It is not financial, legal, insurance, or tax advice, and it is not a personal recommendation. WeCovr does not assess your individual circumstances or recommend a specific product through this article.
Policy exclusions and underwriting: Insurance policies, including life insurance, private medical insurance, critical illness cover, and income protection, are subject to insurer underwriting, eligibility, acceptance criteria, terms, conditions, limits, and exclusions. Pre-existing medical conditions may be excluded, restricted, or accepted on special terms unless an insurer confirms otherwise in writing.
Tax treatment: References to tax treatment, HMRC rules, or business reliefs are based on current UK legislation and guidance, which can change. Tax treatment depends on your personal or business circumstances and may differ from examples in this article.
Before you buy: Always read the Insurance Product Information Document (IPID), policy summary, and full policy terms before buying, renewing, changing, or keeping cover. If you are unsure whether a policy is suitable for you, speak to an insurance adviser.
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