Life insurance with critical illness cover
A combined policy pays out if you die, and also if you are diagnosed with a serious illness during the term. Here is how it works, what it covers, what it costs, and whether adding critical illness is right for you.
Get my quoteSurely helps you compare and get quotes online; we do not give advice ourselves; where advice is appropriate, a qualified protection adviser from our panel partners may contact you.
What it is, in short
Life insurance with critical illness cover is a single policy that does two jobs. It pays a tax free lump sum if you die during the term, like standard life cover, and it also pays out if you are diagnosed with one of the serious illnesses listed in the policy, such as cancer, a heart attack or a stroke.
The critical illness part is what sets it apart. It pays while you are still alive, so the money can support you and your family through treatment and recovery, not just afterwards.
How it works
A combined policy is usually what the industry calls accelerated cover. That means it pays out once, on whichever happens first, your death or a valid critical illness diagnosis. Once it pays, the cover ends.
The payout is a tax free lump sum, and it is yours to use however you need, whether that is clearing the mortgage, replacing lost income, paying for treatment or adapting your home. Many policies also include some children’s cover at no extra cost, paying a smaller amount if your child is diagnosed with a listed condition, and some pay a partial amount for less severe conditions that do not meet the full definition.
What is covered
Most policies cover 40 or more conditions, and some cover 80 or more. Cancer, heart attack and stroke are almost always included and account for the large majority of claims. The Association of British Insurers sets minimum definitions so that a policy can be called critical illness cover, and most insurers offer more than that minimum.
| Condition | What to know |
|---|---|
| Cancer | Life threatening cancers are covered, but many early stage or non invasive cancers are excluded or pay a partial amount. |
| Heart attack | Must meet the policy’s diagnostic criteria, such as specific test results and symptoms. |
| Stroke | Usually requires permanent symptoms lasting a set period. |
| Multiple sclerosis | Commonly covered where there is a clear diagnosis and symptoms. |
| Major organ transplant | Covered, including being placed on an official waiting list with some insurers. |
| Kidney failure | Covered where both kidneys fail and dialysis is needed. |
| Other serious conditions | Often include Parkinson’s disease, benign brain tumours, loss of sight or limbs, and more. |
Definitions and exclusions vary between insurers, so the number of conditions matters less than how each one is defined. Always check the policy wording for the conditions that matter to you.
Combined, separate or life only
There is more than one way to arrange life and critical illness cover, and the right one depends on your budget and how much protection you want.
| Option | How it pays | Trade off |
|---|---|---|
| Life with critical illness | One policy that pays once, on death or a critical illness diagnosis, whichever comes first. | The simplest and cheapest way to have both, but it pays only once. |
| Two separate policies | A life policy and a standalone critical illness policy, each paying on its own event. | You could claim on critical illness and still leave life cover in place, but it costs more. |
| Life only | Pays a lump sum on death during the term. | The lowest cost, but no payout if you are seriously ill and survive. |
What it costs
Adding critical illness cover increases the premium noticeably, often making the combined price two to three times the cost of life cover alone. That is because you are far more likely to be diagnosed with a serious illness during the term than to die, so the insurer is taking on more risk.
| Age | Life only | Life with critical illness |
|---|---|---|
| 30 | £11 | £28 |
| 40 | £23 | £60 |
| 50 | £55 | £140 |
| 60 | £130 | £320 |
Figures are Surely analysis and illustrative, not quotes.4 Your own price depends on your age, health, lifestyle and the cover you choose.
Do you need critical illness cover?
The case for it is strong if a serious illness would put your finances under real strain, for example if you have a mortgage, children, or you are self employed with no sick pay to fall back on. A lump sum at diagnosis can buy you time to focus on recovery rather than money.
It is worth weighing against the alternatives. Income protection pays a regular income if you cannot work for almost any health reason, which is broader than a fixed list of conditions, so some people prioritise that instead, or hold both. If you have generous employer sick pay and solid savings, the need may be smaller. As with life cover, the right answer depends on who relies on you and what would happen to them.
Claims and reliability
Critical illness claims are paid at a high rate, though not quite as high as life claims, because the conditions have to meet specific medical definitions. Around 90% of critical illness claims were paid in 2024, compared with close to 98% for life cover.21 UK insurers paid £1.3 billion in critical illness claims that year, with an average payout of £67,600, and cancer was the most common cause.1
Where a claim is declined, it is usually because the condition did not meet the policy definition, or because something was not disclosed when the policy was taken out. Critical illness claims also take a little longer than life claims, often around eight weeks, because they need medical evidence. The lessons are the same as ever: answer the health questions fully, and check the definitions of the conditions that matter most to you.
“Critical illness cover is the part of protection people are most grateful for when they need it, because it pays while you are still here. My honest steer is to look at the definitions, not just the headline number of conditions, and to weigh it against income protection rather than assuming you need both. Get the cover amount right first, then decide whether adding critical illness fits your budget.”
Frequently asked questions
Is critical illness cover worth it?
It can be, if a serious illness would strain your finances, especially with a mortgage, children or no employer sick pay. It pays a tax free lump sum on diagnosis, which buys time to recover. It costs more than life cover alone, so weigh it against your budget and against income protection.
What illnesses are covered?
Most policies cover 40 or more conditions, with cancer, heart attack and stroke almost always included and making up the majority of claims. Cover also commonly extends to conditions such as multiple sclerosis, major organ transplant and kidney failure. Definitions vary, so check the wording.3
Does it pay out as well as the life cover?
On a standard combined policy, no. It is accelerated cover, so it pays once, on death or a critical illness diagnosis, whichever comes first, then ends. If you want a payout on both, you would need two separate policies.
How much does critical illness cover add to the price?
Adding it often makes the premium two to three times the cost of life cover alone, because a serious illness during the term is more likely than death. Your exact price depends on your age, health and the cover you choose.4
Is the payout taxed?
No. A critical illness payout is a tax free lump sum, and it is yours to use however you need. Tax treatment depends on your circumstances and can change.
Does Surely advise whether to add it?
Surely helps you compare and get quotes online; we do not give advice ourselves; where advice is appropriate, a qualified protection adviser from our panel partners may contact you.
For impartial money guidance you can use MoneyHelper, the government backed service.
This guide is general information, not personal advice. Conditions covered, definitions, exclusions and premiums vary by insurer and individual circumstances and can change. Pricing figures are Surely analysis of typical UK prices for a healthy applicant and are illustrative, not quotes. Your own cover and price are confirmed only when you apply. Surely helps you compare insurance and does not provide regulated financial advice.
How We Researched This Guide
We write our guides from named, public UK sources and cross check the figures. This guide drew on:
- Association of British Insurers and Group Risk Development, 2024, for the £1.3 billion total, the £67,600 average payout and cancer as the leading cause.
- ABI critical illness claims statistics, 2024, for the claims paid rate and the common conditions breakdown.
- ABI Statement of Best Practice, for the minimum condition definitions.
- Surely analysis of typical UK term prices for a healthy applicant, for the life and critical illness premium figures.
Surely helps you compare and get quotes online; we do not give advice ourselves; where advice is appropriate, a qualified protection adviser from our panel partners may contact you.
Written and reviewed by Paul Gillooly, Founder of Surely. Last reviewed June 2026.
Sources
- Association of British Insurers and Group Risk Development, 2024 protection claims: £1.3 billion paid in individual critical illness claims, average payout £67,600, cancer the most common cause; close to 98% of life claims paid.
- ABI critical illness claims statistics, 2024: around 90% of critical illness claims paid; cancer about 62% of claims, heart attack about 16%, stroke about 6%.
- Association of British Insurers, Statement of Best Practice for Critical Illness Cover, for minimum condition definitions.
- Surely analysis of typical UK term life and critical illness premiums for a healthy applicant, June 2026. Illustrative figures, not quotes.
- Financial Conduct Authority, Pure Protection Market Study, January 2026.
Surely is a trading style of PJG Financial Ltd, authorised and regulated by the Financial Conduct Authority, firm reference number 919697. This page is a financial promotion and is for general information, not personal advice. Life insurance has no cash in value at any time and cover ends if you stop paying premiums. Tax treatment depends on your individual circumstances and may change in the future.
