Is critical illness cover worth it?
Key takeaways
Critical illness cover pays a serious illness payout if you’re diagnosed with a specified condition, helping protect your finances when you can’t work.
You receive a tax-free lump sum on diagnosis, which you can use to clear debts, cover bills, fund home adaptations, or support everyday living costs.
Most policies cover major conditions such as cancer, heart attack and stroke, with some plans offering wider protection for additional illnesses.
Always check the policy exclusions, as pre-existing conditions and certain illnesses may not be covered.
What is critical illness cover?
Critical illness cover is an insurance policy that pays a serious illness payout if you’re diagnosed with a specified medical condition listed in the policy. It provides a tax-free lump sum on diagnosis, which you can use for bills, debts, mortgage payments or everyday living costs.
📣 Did you know? Cover and policy exclusions vary, so it’s important to check what illnesses are included and any limits that apply.
Do I need critical illness cover?
You might need critical illness cover if a serious diagnosis would leave you struggling to pay the mortgage, rent or household bills.
In the UK, many employees are only entitled to Statutory Sick Pay (SSP) – currently £118.75
Critical illness cover provides a serious illness payout in the form of a tax-free lump sum if you’re diagnosed with a specified condition. Unlike income protection, which pays a monthly replacement income while you’re unable to work, critical illness cover pays out once on diagnosis – allowing you to:
Clear or reduce your mortgage or other debts
Fund private treatment or home adaptations
Replace lost income while you recover
Create financial breathing space for your family
When you might need critical illness cover
You may want to consider it if:
You’re the main breadwinner and your household relies on your income
You’d struggle to cover essential bills on SSP alone
You don’t have long-term employer sick pay
You have limited savings (e.g. less than 3–6 months’ expenses)
You have financial dependants – such as children or a partner
You’re self-employed and wouldn’t receive employer sick pay
You’re a stay-at-home parent whose illness would create additional childcare costs
When it might not be necessary
Critical illness cover may be less relevant if:
You don’t rely on earned income
You have substantial savings or investments to fall back on
A partner or family member could comfortably support the household
You already have comprehensive cover through workplace benefits
Income protection insurance already meets your needs
Is critical illness cover worth it?
Critical illness cover can be worth it if a serious diagnosis would put you under financial strain – but less so if you already have strong savings, workplace benefits or alternative cover in place.
It’s designed to pay a serious illness payout as a tax-free lump sum if you’re diagnosed with a specified condition. The value comes from financial certainty at a difficult time – helping you clear debts, cover living costs or reduce money worries while you focus on recovery. The cost, however, depends on your age, health, lifestyle and level of cover, and you may never claim.
Deciding whether a critical illness policy is a worthwhile investment depends on your personal circumstances and financial situation.
Things to consider before taking out cover include:
Your financial situation: What expenses would you need to cover if you couldn't work?
Your employment situation: What benefits does your employer offer?
Your personal situation: Does your partner rely on your income or do they support you financially?
Your savings: How much money do you have saved?
Your health: What health conditions do you have?
As with all insurance policies, there are critical illness cover inclusions and exclusions to be aware of.
What are the pros and cons of critical illness cover?
Pros
Peace of mind if you don’t have substantial savings.
If you don’t have a strong financial safety net, cover can provide reassurance that you’d receive a payout following a serious diagnosis.
Example: If you’re diagnosed with invasive cancer that meets the policy definition, a £75,000 tax-free lump sum could clear your mortgage or cover several years of essential bills.
Financial security if you can’t work.
Unlike income protection – which pays monthly – critical illness cover pays out once on diagnosis. This can help you reduce or eliminate debts quickly.
Example: After a qualifying heart attack, you could use the payout to repay loans, reduce your mortgage balance or fund private rehabilitation treatment.
Support for your family.
If your household depends on your income – or on unpaid childcare you provide – a payout can help maintain stability.
Example: A stay-at-home parent diagnosed with a serious illness could use the lump sum to pay for childcare or household support during treatment and recovery.
Cons
Not all illnesses – or all cases – are covered.
Policies only pay out for listed conditions, and those conditions must meet strict medical definitions. Severity matters.
For example, some early-stage cancers may not qualify if they’re classed as non-invasive, while a stroke may need to result in permanent neurological symptoms to meet the definition.
It can be expensive.
Premiums increase with age and can be higher if you smoke, have certain health conditions, or choose a large level of cover. You may pay for many years and never claim.
You may already have adequate cover.
Some employers offer generous sick pay or critical illness benefits. If you also have income protection and strong savings, additional cover might duplicate protection.
You should compare critical illness with other types of cover such as income protection insurance, private medical insurance and life insurance before you decide to buy it.
How much is critical illness cover?
The cost of critical illness cover varies and is influenced by factors such as the amount of cover you take out, your health, age, location and lifestyle.
Critical illness cover can be a standalone product but is usually bought alongside life insurance.
It's important to keep in mind that premiums must be paid on time, or the coverage lapses and your policy ends.
There's no cash-in value if you don't end up using the cover. This means you won't get any money back at the end of the term or if you stop the policy early.
Price from | Average price |
|---|---|
£12.99 | £32.41 |
How much critical illness cover do I need?
The amount of critical illness cover you need really depends on your personal circumstances – there isn’t a one-size-fits-all number. A good way to think about it is: how much money would you and your family need if you couldn’t work due to a serious illness?
Worked calculation examples
Example 1 – Mortgage protection focus
Scenario:
Mortgage balance: £180,000
Other debts: £10,000
Savings: £15,000
Target cover calculation: £180,000 + £10,000 – £15,000 = £175,000
In this case, around £175,000–£200,000 of critical illness cover could clear major debts and significantly reduce monthly outgoings.
Example 2 – Income replacement focus (2–3 years)
Scenario:
Monthly essential spending: £2,000
Employer sick pay: 3 months full pay
Savings: £8,000
Goal: Cover 24 months of expenses.
24 × £2,000 = £48,000 Minus £8,000 savings = £40,000
Around £40,000–£50,000 of cover could provide two years of financial breathing space.
When should I get critical illness cover?
Premiums are generally lower when you’re younger and in good health, and you’re less likely to be excluded for pre-existing conditions.
Most people consider it at key life stages, such as:
Buying a home – to ensure the mortgage could still be paid if you became seriously ill.
Starting a family – so there’s financial support for your partner or children if you can’t work.
Relying on one main income – if your household depends heavily on your salary.
Changing jobs – especially if you’re losing employee benefits like sick pay or insurance.
Critical illness vs other protection products
Life insurance
Both life insurance and critical illness cover provide a tax-free lump sum amount of money to protect you and your loved ones should the worst happen. The key difference between life cover and critical illness insurance, however, is the stage at which a payout is made.
Life insurance: Provides a payout to your beneficiaries upon your death.
Critical illness cover: Offers a lump sum upon the diagnosis of a serious illness.
People often buy both types of insurance together to ensure they are fully protected.
Income protection
Income protection insurance is a type of policy that provides you with a regular monthly income if you’re unable to work due to illness or injury, and sometimes unemployment too.
Unlike critical illness cover, which pays a lump sum for specific serious conditions, income protection is more flexible – it covers a wide range of health problems (from stress and back pain to serious illnesses) and pays out until you can return to work or until the policy ends.
How can I find the best deal for me on critical illness cover?
MoneySuperMarket can help you compare critical illness quotes from 15 providers and find the best deals in minutes to give you peace of mind about your and your loved ones’ financial security.
Buying critical illness cover through MoneySuperMarket can be useful because it lets you compare policies from multiple insurers in one place, so you can find the best balance of cover and cost.
Quotes show you the illnesses covered, payout terms, and exclusions side by side, making it easier to understand differences that aren’t always obvious. Using a comparison site can also save time and help ensure you’re not overpaying for the same level of protection.
Frequently asked questions
Why would critical illness not pay out?
A critical illness claim is usually declined for one of four reasons: the condition isn’t covered, it doesn’t meet the policy’s severity definition, the survival period isn’t met, or there was non-disclosure when applying.
The condition isn’t covered
Policies only pay a serious illness payout for the specific conditions listed in the policy wording. For example, a policy may cover cancer, heart attack and stroke – but not chronic fatigue syndrome or some autoimmune conditions.
The illness doesn’t meet the severity definition
Even if the condition is listed, it must meet strict medical criteria set out in the policy. These definitions are precise and often technical.
For example, early-stage or “in situ” cancers (non-invasive) are often excluded or paid at a lower level. The policy may require the cancer to have spread beyond the original tissue layer.
The survival period isn’t met
Most policies include a survival period, typically 10–14 days after diagnosis. This means the policyholder must survive for that minimum period before the tax-free lump sum is paid.
Non-disclosure or inaccurate information
When applying, you must disclose relevant medical history, smoking status and other risk factors. If important information is withheld – even unintentionally – the insurer may reduce the payout, change the terms or decline the claim entirely.
How long does it take for critical illness insurance to pay out?
There isn’t a fixed timeline – it varies by insurer and how complex the medical evidence is – but in the UK most straightforward critical illness claims are typically paid within 4–8 weeks.
How likely is it my critical illness claim will be paid out?
In the UK the vast majority of critical illness insurance claims are paid, giving strong reassurance that a valid claim will generally be honoured. However, the exact likelihood can vary by insurer, policy wording and the specifics of each claim.
According to the Association of British Insurers (ABI), the proportion of new individual claims paid across all protection policies has remained at or above 97.9% over the past decade.
Common reasons for declined claims were policyholders failing to disclose existing medical conditions when they took out the policy, and not meeting the policy definitions.
Does critical illness cover mental health conditions?
Standard critical illness cover does not normally include mental health conditions such as anxiety, depression or PTSD as payable conditions, because they aren’t classed as ‘critical illnesses’ under the definitions insurers use.
Do I need critical illness cover if I have a mortgage?
Having a mortgage doesn’t automatically mean you need critical illness cover, but it can be very useful if a serious illness would make it difficult to keep up payments. Critical illness cover pays a tax-free lump sum on diagnosis of a specified condition, which can help protect your home and finances.
Can you buy critical illness cover for children?
Yes — but in the UK you generally don’t buy standalone critical illness cover solely for a child. Instead, children’s critical illness cover is added onto an adult critical illness policy held by a parent or legal guardian.
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Collette Shackleton
Content Writer
Collette Shackleton is a highly skilled Content Writer who has over nine years’ experience creating helpful and engaging personal finance content for consumers. Collette shares her experience as a...
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Emma Lunn
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Emma has written about personal finance for almost 20 years, with a career spanning several recessions and their inevitable consequences. Emma’s main focus is helping people learn to manage their...
