How does critical illness insurance work?
You pay monthly premiums for a set term. If you're diagnosed with a covered condition that meets the policy definition, you receive a tax-free lump sum. The policy then ends (most policies pay once only).

Pays a tax-free lump sum if you're diagnosed with cancer, heart attack, stroke or 40+ other serious conditions. Protection while you're alive — when you need it most.
Specialist advice for complex situations. We compare insurer definitions and cover levels — not just premiums.
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~92%
Claims paid*
40+
Conditions covered
£67k
Avg. payout*
Tax-free
Lump sum
*Subject to underwriting and policy terms.
“Critical illness isn't about dying — it's about surviving. The right cover gives you options when a diagnosis turns your world upside down.”
You came here because you're thinking about serious illness. The review starts there. If you want, you can also include what happens if you cannot work or if you die.
You'll start with a review of your existing protection. We'll only discuss new cover if we identify a gap that's worth exploring.
Adviser-led financial exposure review — not a product quote or comparison.
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Reference: 989177
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See where this cover sits in your wider protection plan — each layer protects something different.
Protect your family's future if you die.
Protect against serious diagnosis while you're alive.
Protect your monthly income if you cannot work.
Bring life, CI, and IP together for your household.
Cover directors, shareholders, and key people.
We always review your existing protection first. Where new cover is appropriate, we'll compare suitable options from a wide range of UK protection insurers to help find the right protection for your circumstances.






…and access to many other leading UK protection insurers.
Quick answer
Critical illness insurance pays a tax-free lump sum if diagnosed with serious conditions like cancer, heart attack, or stroke. Covers 40-60+ conditions. 92% of claims paid. Average payout £67,000.
Critical illness insurance provides financial protection if you're diagnosed with a serious health condition. Unlike life insurance which pays on death, critical illness pays while you're alive, giving you money when you need it most for treatment, mortgage payments, or lifestyle changes.
Claims typically paid within 4-8 weeks of diagnosis and submission of medical evidence.
From choosing cover to receiving a tax-free payout — the protection journey in five clear steps.
Select how much you want to be paid out if you're diagnosed with a serious illness — often aligned to mortgage, debts, and recovery costs.
Make regular payments to keep your policy active throughout the term. Premiums depend on age, health, smoker status, and cover level.
If you're diagnosed with a condition covered by your policy and it meets the insurer's medical definition, you can claim.
Most policies require you to survive 14 days after diagnosis. You submit medical evidence; claims typically settle in 4–8 weeks.
The payout arrives as a single tax-free payment. Use it for mortgage, treatment, living costs, or anything you choose. Most policies pay once only.
Understanding the survival period, claim process, and payout helps you know what to expect at the hardest moment.
Step 1
Your consultant confirms a serious condition that appears on your policy schedule.
Step 2
You typically need to survive 14 days after diagnosis before the claim can proceed.
Step 3
Medical reports are sent to the insurer. Your adviser can help chase progress.
Step 4
A tax-free payment lands in your account — average UK claim around £67,000.
Remove your biggest monthly commitment during recovery.
Fund scans, surgery, or rehabilitation not covered by the NHS.
Cover bills while you cannot work or need reduced hours.
Pay for stairlifts, bathroom changes, or mobility equipment.
Bridge the gap before income protection or sick pay kicks in.
Help a partner reduce work or fund childcare during treatment.
Cancer, heart attack, and stroke account for the majority of claims — but definitions matter more than the headline list.
Around 65% of UK critical illness claims. Most policies cover invasive cancer; definitions vary for early-stage cases.
Must meet specified severity (often troponin levels). One of the core conditions on every mainstream policy.
Permanent neurological symptoms usually required. Partial-payment variants exist for less severe strokes.
Typically requires a definitive diagnosis with ongoing symptoms. Covered on comprehensive policies.
Surgery to treat coronary artery disease. Usually a full payout when meeting surgical criteria.
See 40–60+ conditions, partial payment rules, and how insurer definitions differ.
Life cover protects your family if you die. Critical illness protects you while you are still alive.
| Feature | Critical illness | Life insurance |
|---|---|---|
| Pays while you're alive | ||
| Pays on death | ||
| Payout type | Lump sum | Lump sum |
| Typical use | Recovery & living costs | Family & mortgage |
| Trigger | Diagnosis of listed illness | Death during term |
| Can be combined |
Lump sum for major diagnoses versus monthly income if you cannot work — most people benefit from understanding both.
| Feature | Critical illness | Income protection |
|---|---|---|
| Payout type | One-off lump sum | Monthly income |
| Best for | Debts & big expenses | Replacing salary long-term |
| Claim trigger | Specific diagnoses | Unable to work (illness/injury) |
| Duration | Single payment | Until retirement or claim end |
| Covers back pain? | Often yes | |
| Works together? |
Serious illness cover is sometimes sold alongside life insurance. Standalone critical illness often offers broader, clearer protection.
| Feature | Critical illness | Serious illness cover |
|---|---|---|
| Product type | Standalone protection | Often bundled with life cover |
| Conditions covered | 40–60+ listed conditions | Varies — sometimes fewer |
| Definitions | ABI+ standard wording | Insurer-specific |
| Payout | Tax-free lump sum | Usually tax-free lump sum |
| Comparison priority | Compare definitions | Compare definitions |
| Advice value | High — wording differs | High — wording differs |
Combined policies can be cost-effective, but understand the single-payout rule before you commit.
| Feature | Combined life + CI | Standalone CI |
|---|---|---|
| Number of policies | One policy | Separate CI policy |
| Premium | Often cheaper overall | Separate premium |
| Payouts | Usually one payout only | CI pays independently |
| If CI claimed | Life cover often ends | Life cover continues |
| Flexibility | Less flexible | More flexible |
| Best for | Simplicity & budget | Maximum protection |
Personalised critical illness advice — we explain what actually pays out, not just what looks cheapest on a comparison site.
Authorised protection advice with clear accountability — reference 989177.
Long-standing critical illness advice for families, homeowners, and business owners.
Cover shaped around your mortgage, dependants, budget, and existing policies.
We compare medical wording — not just premium — so you understand what actually pays out.
We handle underwriting questions and chase insurers throughout the process.
We check whether you are duplicating cover or have gaps alongside life and income protection.
The right structure depends on who relies on your income and what a diagnosis would cost you financially.
Typical cover: £150,000 CI + income protection
Lump sum for immediate costs; IP replaces salary if unable to work long-term.
Typical cover: £100,000 CI each
Either diagnosis could strain joint finances — separate policies avoid a single joint payout ending all cover.
Typical cover: £120,000 CI + full-term IP
CI clears debts quickly; IP protects ongoing income if recovery takes months or years.
Typical cover: Executive CI + relevant life cover
Lump sum can cover personal and business liabilities while you focus on recovery.
Interactive guides to help you work out cover level, affordability, and whether to combine with life insurance.
Estimate cover for mortgage, debts, medical costs, and recovery.
Use calculatorBalance mortgage, dependants, and existing savings realistically.
Read guideUnderstand typical UK premiums and what affects your price.
Check valueDecision guideCompare combined policies versus standalone critical illness cover.
Compare optionsDefinitions, sum assured and existing cover all matter. Check where critical illness sits in your household plan before comparing policies.
You'll start with a review of your existing protection. We'll only discuss new cover if we identify a gap that's worth exploring.
No obligation · FCA regulated · Whole-of-market advice
Detailed guides on quotes, claims, providers, costs, and policy management — 25 topics covered.
Grouped answers for easier scanning — all the detail, without an endless accordion wall.
You pay monthly premiums for a set term. If you're diagnosed with a covered condition that meets the policy definition, you receive a tax-free lump sum. The policy then ends (most policies pay once only).
It pays when you're diagnosed with a covered condition that meets the policy's specific definition. There's usually a 14-day survival period. Claims typically take 4-8 weeks to process.
Most policies cover 40-60+ conditions. Core conditions include cancer, heart attack, stroke, kidney failure, and major organ transplants. Cancer accounts for around 65% of all claims.
Yes, critical illness payouts are completely tax-free in the UK. You receive the full sum with no deductions for income tax or capital gains tax.
Most UK policies require you to survive 14 days after diagnosis before a claim pays. This prevents payouts for immediately terminal diagnoses that would fall under terminal illness benefit on life cover instead.
No. Insurers distinguish between invasive cancer and early-stage cases. Always compare definitions — two policies at the same price can have very different cancer wording.
Standard policies pay once and then end. Some modern policies offer partial payouts or children's cover, but the main sum assured typically pays only once.
Premiums depend on age, health, smoker status, cover amount, and term. CI is more expensive than life insurance alone because the likelihood of a claim during the term is higher.
It is worth considering if a serious diagnosis would cause financial hardship — mortgage pressure, limited savings, or dependants relying on your income. Less essential if you have substantial assets and comprehensive employer benefits.
Often yes, but previous health issues may be excluded or increase premiums. An adviser can place cases with the most sympathetic underwriter.
Most claims settle within 4–8 weeks once the insurer has complete medical evidence. Complex cases can take longer.
Typically consultant reports, scan results, and a claim form. Your GP or specialist provides the medical proof — we help coordinate this.
Yes, but never cancel existing cover until replacement terms are confirmed. New policies exclude pre-existing conditions, so switching can leave you worse off.
Life, critical illness and income protection do different jobs. Use these pages to connect the next question.
What happens to the mortgage and dependants if you die.
Read moreMonthly income if illness or injury stops you working.
Read moreHow life, critical illness and income protection fit together.
Read moreStart with your household exposure — then decide if new cover is needed.
Read moreA simple framework we use with every client — work through each step in order, then review what you already have.
Reviewed by Jay Sabine, Mortgage & Protection Adviser — a real FCA-regulated adviser at Your Home Finance.
Critical illness is the policy people most often buy without reading the definitions — and that's where claims go wrong. Two policies at the same price can have very different cancer or heart attack wording.
I usually recommend a lump sum aligned to your mortgage plus a buffer for living costs and treatment. If budget is tight, don't drop cover entirely — reduce the sum assured rather than skipping income protection alongside it.
And if you already have life insurance, check whether critical illness is bundled. A combined policy might have already paid out on a partial claim you forgot about, leaving you with less cover than you think.
— Jay Sabine, FCA-regulated Mortgage & Protection Adviser, Your Home Finance
Related protection pages
Speak to a protection adviser — we'll review your mortgage, dependants, and existing cover before recommending anything.
You'll start with a review of your existing protection. We'll only discuss new cover if we identify a gap that's worth exploring.