UK insurers pay around 91 percent of critical illness claims according to Association of British Insurers data, with cancer accounting for roughly 60 percent of all payouts, followed by heart attack and stroke. Refused claims are mostly for non-disclosure of medical history or conditions that fall outside the policy definition.
TL;DR · LAST REVIEWED Last reviewed 7 September 2026
- Pays a tax-free lump sum on diagnosis of a defined condition and survival of the survival period (usually 14 days)
- Around 91 percent of claims paid; cancer is the largest cause
- Definitions are governed by ABI Minimum Standards, so 'heart attack of specified severity' means something precise
KEY FACTS
- ABI: around 91 percent of critical illness claims paid (verify 2024 figure)
- Cancer roughly 60 percent of claims, heart attack around 10 percent, stroke around 7 percent
- ABI Minimum Standards for Critical Illness Cover define core conditions insurers must meet or exceed
- Survival period typically 14 days
- Main refusal reasons: non-disclosure, definition not met (for example early-stage or in-situ cancer)
- Consumer Insurance (Disclosure and Representations) Act 2012 sets the duty to take reasonable care not to misrepresent
What the ABI claims data shows
The Association of British Insurers (ABI) publishes annual claims statistics for critical illness cover. The data shows that around 91 percent of claims are paid, with cancer accounting for roughly 60 percent of all payouts, followed by heart attack at around 10 percent and stroke at around 7 percent. The average payout varies by policy and provider.
The ABI claims data, drawn from participating insurers, provides a transparent view of how critical illness policies perform in practice. For the most recent reporting year, the paid rate of approximately 91 percent means that nearly one in ten claims are declined. This figure has remained broadly stable in recent years, according to the ABI statistics.
When broken down by condition, cancer is by far the most common reason for a successful claim, representing about six in ten payouts. Heart attack and stroke are the next most frequent, together accounting for roughly 17 percent of claims. Other conditions, including multiple sclerosis, benign brain tumour and Parkinson's disease, make up the remainder, each contributing a smaller share of the total.
The average payout amount is not published as a single industry figure, as it depends on the sum assured chosen by the policyholder. However, the ABI notes that the total value of claims paid runs into hundreds of millions of pounds each year. For many claimants, the payout is used to replace lost income, pay for private treatment or settle an outstanding mortgage balance.
The data also shows differences in claims paid rates by condition. For example, claims for heart attack and stroke tend to have a higher paid rate than those for cancer, partly because the definitions for cancer are more restrictive. The ABI statistics are intended to help consumers understand the likelihood of a claim being accepted and the conditions that are most commonly covered.
How definitions work: the ABI Minimum Standards
The ABI Minimum Standards for Critical Illness Cover set out a baseline for the conditions that insurers must cover and the severity of illness required to trigger a payout. These standards ensure a consistent level of protection across the market, although individual policies can offer more generous terms.
The ABI Minimum Standards were introduced to address inconsistency in critical illness definitions. They specify a list of core conditions that every policy must include, such as cancer, heart attack and stroke. For each condition, the standard sets out the medical criteria that must be met before a claim can be paid. Insurers are free to cover additional conditions, but they cannot offer less than the minimum standard.
The severity wording is a critical element of the definitions. For example, a heart attack must involve the death of heart muscle tissue, evidenced by specific enzyme changes and electrocardiogram results. A stroke must cause permanent neurological deficit lasting more than 24 hours. These criteria are designed to distinguish between minor events and those that have a lasting impact on the policyholder's health.
In addition to the core conditions, the standards include provisions for additional and partial payment conditions. Some policies pay a reduced amount, often 25 or 50 percent of the sum assured, for less severe versions of a covered condition. For example, a partial payment might be made for early-stage prostate cancer or ductal carcinoma in situ of the breast, where the full definition is not met but the diagnosis still warrants financial support.
The ABI Minimum Standards are reviewed periodically to reflect advances in medical practice and changes in how conditions are diagnosed. Insurers must confirm that their policies meet or exceed these standards, and the ABI publishes a list of registered policies. Consumers can use this information to compare how different providers define the same condition.
Why claims are refused
Claims for critical illness cover are refused for three main reasons: non-disclosure of relevant medical information, the condition not meeting the policy definition, and the policyholder not surviving the required survival period. The Consumer Insurance (Disclosure and Representations) Act 2012 sets out the duty to take reasonable care not to misrepresent information when applying.
Non-disclosure is the most common reason for refusal, according to insurer data. When applying for cover, you must answer questions about your medical history, lifestyle and family health accurately. If you fail to disclose a condition that would have affected the insurer's decision to offer cover or the premium charged, the insurer may reduce or refuse a claim. The Consumer Insurance (Disclosure and Representations) Act 2012 requires you to take reasonable care not to make a misrepresentation, and the insurer must show that the undisclosed information was material to the risk.
The second reason for refusal is that the condition does not meet the policy definition. Critical illness policies are not designed to pay for every diagnosis; they pay only when the illness reaches a specified level of severity. For example, a claim for cancer will be refused if the tumour is in situ, meaning it has not invaded surrounding tissue, or if it is a non-melanoma skin cancer that is excluded from the definition. Similarly, a heart attack claim may be refused if the event was a minor one that did not cause permanent damage.
The survival period is a standard feature of critical illness cover. Most policies require you to survive for 14 days after the diagnosis or event before a claim can be paid. This period is intended to confirm that the condition is serious and to avoid paying out on terminal diagnoses where the policyholder dies shortly after. If death occurs within the survival period, the critical illness benefit is not paid, although a separate life cover policy may provide a payout.
Insurers are required to explain the reasons for refusal in writing, and policyholders have the right to challenge the decision through the insurer's internal complaints process and then the Financial Ombudsman Service. Understanding the common reasons for refusal can help you provide accurate information at application and know what to expect if you need to claim.
Cancer: what is and is not covered
Cancer is the most claimed condition under critical illness cover, but not all cancers qualify for a payout. The ABI Minimum Standards define cancer as a malignant tumour that is invasive and has spread beyond the basement membrane. Early-stage cancers, in-situ tumours and certain non-melanoma skin cancers are excluded from the full definition.
The definition of cancer in critical illness policies is precise. To meet the standard, a tumour must be malignant and show evidence of invasion into surrounding tissue. This means that cancers diagnosed at an early stage, where the cells are confined to the layer of tissue where they started, do not qualify for a full payout. The ABI Minimum Standards explicitly exclude in-situ cancers, where the tumour has not broken through the basement membrane, and pre-malignant conditions.
Non-melanoma skin cancers, such as basal cell carcinoma and squamous cell carcinoma, are also excluded from the core definition. These are common and generally treatable, so they do not meet the severity threshold for a critical illness benefit. However, malignant melanoma, the most serious form of skin cancer, is covered provided it is invasive and meets the other criteria in the definition.
Some policies offer partial payments for less severe cancer diagnoses. For example, a policy may pay 25 percent of the sum assured for early-stage prostate cancer that is contained within the prostate gland, or for ductal carcinoma in situ of the breast. These partial payments are designed to provide some financial support without triggering the full benefit, and they are clearly set out in the policy wording.
The ABI claims data shows that cancer claims have a slightly lower paid rate than other major conditions, reflecting the complexity of the definition. If a cancer claim is refused because the condition does not meet the definition, the policyholder may still be able to claim under a separate income protection or life insurance policy. It is important to review the specific cancer definition in your policy to understand what is covered.
Combined with life cover or standalone
Critical illness cover can be bought as a standalone policy or combined with life insurance. When combined, the cover is described as accelerated, meaning the critical illness benefit is paid from the life cover sum assured. Alternatively, it can be added as an additional benefit, providing a separate payout on top of the life cover.
An accelerated critical illness policy pays out the full sum assured if you are diagnosed with a covered condition, but this reduces the life cover by the same amount. For example, if you have a life policy with a sum assured of 200,000 pounds and you claim 200,000 pounds for a critical illness, the life cover ends. If you claim a partial payment, such as 50,000 pounds, the remaining life cover is reduced to 150,000 pounds.
An additional or standalone critical illness policy pays out independently of any life cover. If you have a separate life insurance policy, you will receive the critical illness payout and the life cover remains intact for your beneficiaries. This type of cover is often more expensive because the insurer is exposed to two separate claims, but it provides a higher level of financial protection.
Mortgage-linked critical illness cover is commonly sold as a decreasing policy. The sum assured reduces in line with the outstanding balance on a repayment mortgage, so the payout is designed to clear the mortgage if you are diagnosed with a covered condition. This type of cover is typically cheaper than level cover, but the payout decreases over time and may not be sufficient for other financial needs.
Many policies also include children's cover as standard or as an optional extra. This pays a lump sum, often up to 25,000 pounds, if a child is diagnosed with a covered critical illness. The child's claim does not affect the parent's sum assured, and the cover usually continues until the child reaches a specified age, often 18 or 21. The ABI Minimum Standards apply to children's cover as well as adult cover.
Making a claim and disputing a refusal
To make a critical illness claim, you must provide medical evidence, including a diagnosis from a specialist, test results and confirmation that you have survived the required period. If a claim is refused, you can complain to the insurer and then escalate to the Financial Ombudsman Service, which has the power to overturn the decision.
The claims process begins by notifying the insurer of your diagnosis. The insurer will send you a claim form and ask for consent to obtain your medical records from your GP and any treating specialists. You will also need to provide evidence of the diagnosis, such as a pathology report for cancer, an ECG and enzyme test results for a heart attack, or a scan and neurological assessment for a stroke. The insurer may arrange for an independent medical examination if the evidence is not conclusive.
Once the insurer has all the information, it will assess the claim against the policy definition. This assessment can take several weeks, depending on the complexity of the case and the speed with which medical records are provided. The insurer must notify you of its decision in writing, and if the claim is approved, the payout is usually made within a few days of the decision.
If the claim is refused, you have the right to challenge the decision. The first step is to complain to the insurer through its internal complaints procedure. The insurer must respond within eight weeks, and if it upholds the refusal, it must explain the reasons and tell you about your right to refer the case to the Financial Ombudsman Service. The Financial Ombudsman Service is an independent body that resolves disputes between consumers and financial firms.
The Financial Ombudsman Service will review the evidence and the policy wording to determine whether the refusal was justified. It can uphold the claim, require the insurer to pay the benefit, or reject the complaint. The service publishes case studies on critical illness disputes, which show that it often examines whether the insurer applied the definition correctly and whether the policyholder was given clear information about the cover. You can refer a complaint to the Financial Ombudsman Service free of charge, and its decision is binding on the insurer but not on you.
Common questions on critical illness cover
What percentage of critical illness claims are paid in the UK?
According to the Association of British Insurers (ABI), around 91 percent of critical illness claims are paid. This figure is based on data submitted by participating insurers and is published annually. The paid rate varies by condition, with some conditions having a higher likelihood of a successful claim than others.
What conditions does critical illness cover include?
Critical illness cover includes a core set of conditions defined by the ABI Minimum Standards. These typically include cancer, heart attack, stroke, multiple sclerosis and benign brain tumour. Individual policies may cover additional conditions, and some offer partial payments for less severe versions of a covered condition.
Why would a critical illness claim be refused?
A critical illness claim can be refused for several reasons, including non-disclosure of relevant medical information at application, the condition not meeting the policy definition, or the policyholder not surviving the required survival period, which is typically 14 days. The insurer must explain the reasons for refusal in writing.
Is a critical illness payout taxable?
Critical illness payouts are generally free from income tax and capital gains tax, as they are considered a capital payment rather than income. However, tax rules can change and individual circumstances vary, so it is advisable to seek professional advice if you are unsure about your tax position.
What is the survival period in critical illness cover?
The survival period is the length of time you must survive after a diagnosis or event before a claim can be paid. For most critical illness policies, this period is 14 days. If you die within the survival period, the critical illness benefit is not paid, although a separate life insurance policy may provide a payout.
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DISCLAIMER
This guide is editorial information, not financial advice. Kael Tripton Ltd takes no commission on any product mentioned and does not route enquiries to providers. Check policy documents and the FCA register before buying.
Frequently asked questions
What percentage of critical illness claims are paid in the UK?
According to the Association of British Insurers (ABI), around 91 percent of critical illness claims were paid in 2024. This means about 9 percent of claims are declined. The ABI publishes annual claims statistics, which show that the majority of claims are successful.
What conditions does critical illness cover include?
Critical illness cover typically includes major conditions such as cancer, heart attack, and stroke. Cancer accounts for about 60 percent of claims, heart attack around 10 percent, and stroke around 7 percent. Insurers must meet or exceed the ABI Minimum Standards for Critical Illness Cover, which define core conditions.
Why would a critical illness claim be refused?
Claims are most commonly refused due to non-disclosure of relevant medical information or because the condition does not meet the policy definition. For example, early-stage or in-situ cancer may not be covered. The Consumer Insurance (Disclosure and Representations) Act 2012 requires you to take reasonable care not to misrepresent information.
Is a critical illness payout taxable?
No, critical illness payouts are generally tax-free in the UK. This applies to lump-sum payments made under a qualifying policy. However, if the policy is not qualifying, tax may be payable. It is advisable to check with your insurer or a tax adviser for specific circumstances.
What is the survival period in critical illness cover?
The survival period is the time you must live after diagnosis before a claim can be paid. In the UK, this is typically 14 days. If you die before the survival period ends, the claim may not be paid, although some policies may return premiums or have additional death benefits.
SOURCES
- ABI: Protection claims statistics - accessed 7 September 2026
- ABI: Minimum Standards for Critical Illness Cover - accessed 7 September 2026
- Consumer Insurance (Disclosure and Representations) Act 2012 - accessed 7 September 2026
- Financial Ombudsman Service: critical illness - accessed 7 September 2026