Photo by Nick Fewings on Unsplash
Critical illness cover is a type of insurance that pays out a tax-free lump sum if you’re diagnosed with a specified serious illness — typically including cancer, heart attack, and stroke. Unlike income protection, which replaces your monthly salary, critical illness cover pays a one-off amount that you can use however you choose.
What Does Critical Illness Cover Pay Out For?
Every insurer has its own list of “covered conditions,” but most policies include:
- Cancer (usually excluding less serious forms like some early-stage skin cancers)
- Heart attack (meeting specific diagnostic criteria)
- Stroke (resulting in permanent symptoms)
- Major organ transplant
- Kidney failure
- MS (multiple sclerosis)
- Parkinson’s disease
- Major surgery (e.g., coronary artery bypass)
- Blindness or deafness (permanent)
- Loss of limbs
Many policies also include a partial payout for less severe conditions — for example, an early-stage cancer diagnosis might trigger a smaller payment (say, 20–25% of the sum assured) rather than the full amount.
The number of covered conditions varies significantly between providers — some cover 15–20, others cover 50+. More conditions isn’t always better (some of the extras are very rare), but the definitions of core conditions matter a great deal.
How Much Does Critical Illness Cover Pay?
You choose the sum assured when you take out the policy — this is the lump sum you’d receive on a valid claim. Common amounts range from £50,000 to £500,000+, depending on what you need it for.
Common uses for the payout:
– Clearing a mortgage or other debt
– Replacing income while unable to work
– Paying for private medical treatment
– Home adaptations
– Financial security for a partner or family
There’s no rule about what you must spend it on — once paid, it’s yours.
Critical Illness Cover vs Income Protection
These two products serve different purposes and are often confused:
| Critical Illness Cover | Income Protection | |
|---|---|---|
| What it pays | One-off lump sum | Monthly income replacement |
| When it pays | On diagnosis of a covered condition | When you can’t work due to illness/injury |
| Coverage | Specified conditions only | Any illness or injury preventing work |
| Duration | Single payout | Until you can return to work or until retirement |
Critical illness cover is useful if you want to clear a mortgage or have a specific financial liability you’d want covered in the event of a major diagnosis.
Income protection is useful if your primary concern is replacing income over a sustained period of inability to work.
Many financial advisers recommend income protection as a higher priority because it covers a broader range of conditions and addresses the ongoing income gap, not just a one-off event.
What Critical Illness Cover Does NOT Cover
Mental health conditions: Standard critical illness policies don’t cover depression, anxiety, or other mental health conditions — a significant exclusion given how common these are.
Minor versions of major illnesses: Policies include precise definitions. A “heart attack” in insurance terms has specific diagnostic criteria — a mild cardiac event may not qualify.
Pre-existing conditions: Conditions diagnosed before you took out the policy are typically excluded. This is a significant limitation for people with existing health issues.
Cancer recurrence in some cases: Policies vary — some cover recurrence, others don’t.
The most common serious illnesses: Musculoskeletal conditions (back problems, joint issues) are among the most common reasons people can’t work, but they’re generally not covered by critical illness policies.
How Much Does It Cost?
Premiums depend on:
– Age: The older you are, the higher the premium
– Sum assured: Larger payouts cost more
– Health and lifestyle: Smokers pay significantly more; pre-existing conditions may increase premiums or result in exclusions
– Policy term: Longer terms cost more
A non-smoker in their 30s might pay £20–£40/month for £100,000 of cover over a 20-year term. Premiums increase significantly with age — taking out cover earlier locks in lower rates.
Level vs decreasing cover:
– Level: The sum assured stays the same throughout the policy term — useful if you want consistent protection
– Decreasing: The sum assured reduces over time, typically in line with a repayment mortgage — cheaper premiums but less protection over time
Do You Need Critical Illness Cover?
Critical illness cover is most valuable if:
- You have a mortgage and would struggle to maintain payments during an extended illness or after a serious diagnosis
- You have dependants who rely on your income
- Your employer sick pay is limited (statutory sick pay is only £116.75/week as of 2024/25 — very low for anyone with significant financial commitments)
- You have no significant savings buffer to cover a period of inability to work
If you have substantial savings, income protection already in place, and no major debts, the case for critical illness cover is weaker.
Summary
Critical illness cover provides a tax-free lump sum on diagnosis of a serious illness — but the details matter enormously:
- Check the covered conditions carefully — the definition of “heart attack” or “cancer” in an insurance policy is more specific than common usage
- Compare it to income protection — if you can only afford one, income protection covers a broader range of scenarios
- Buy earlier — premiums are significantly lower in your 30s than your 40s or 50s
- Level cover keeps its value — decreasing cover saves money but may leave you underprotected later in the term
- Read the exclusions — mental health conditions and common musculoskeletal problems are not covered by standard policies
Next read: What is income protection insurance UK? | https://moneyunpacked.com/what-is-income-protection-insurance-uk/