Group critical illness cover pays an employee a tax-free lump sum — typically one to two times salary — if they're diagnosed with a defined serious condition such as cancer, heart attack or stroke. Unlike group income protection, employer-paid premiums are a taxable benefit in kind for employees, and children are often covered automatically at no extra cost.
- ✓Pays a tax-free lump sum, typically 1–2x salary, on diagnosis of a defined condition.
- ✓Cancer, heart attack and stroke sit at the core of every policy and drive most claims.
- ✓Unlike group income protection, employer-paid premiums are a taxable benefit in kind (P11D).
What group critical illness cover is
Group critical illness cover is an employer-funded policy that pays an employee a one-off, tax-free lump sum if they're diagnosed with one of a defined list of serious conditions and survive a short period — usually 14 days. The benefit is typically set at one or two times salary, sometimes a flat amount such as £25,000, and once it's paid the employee spends it however they choose: mortgage payments, home adaptations, private treatment top-ups, or simply time off without money worries.
The key word is defined. Policies pay on diagnosis of listed conditions meeting the policy's definitions, not on any serious illness. Three conditions sit at the core of every policy and account for the large majority of claims: cancer (of specified severity — most early, non-invasive cancers are excluded), heart attack and stroke. Around those, insurers typically cover 30–50 further conditions, including multiple sclerosis, Parkinson's, major organ transplant, blindness and serious burns.
What it costs and what's usually included
Pricing depends on the ages of your team, the benefit level (1x vs 2x salary), and how long the conditions list is. Most schemes start from as few as three employees, and — like group life — small groups are usually set up on a free cover limit basis, so nobody answers medical questions unless their benefit is unusually large.
| Feature | Typical group policy |
|---|---|
| Benefit level | 1–2x salary (or flat £25,000–£50,000) |
| Core conditions | Cancer, heart attack, stroke + 30–50 others |
| Survival period | 14 days after diagnosis |
| Children's cover | Often included automatically, typically £20,000–£25,000 cap |
| Indicative cost | £100–£300 per employee per year at 1x salary |
One feature employers consistently underrate: children's cover is often included automatically. Most group policies cover employees' children (commonly up to age 18, or 21 in education) for a proportion of the benefit, capped at around £20,000–£25,000. A child's cancer diagnosis is precisely the moment a parent needs to stop working without financial pressure, and this is one of the very few benefits that addresses it directly.
The tax catch: it's a benefit in kind, unlike GIP
Here's the wrinkle that catches employers out. Employer-paid group critical illness premiums are generally treated as a taxable benefit in kind for employees — reported via P11D (moving to payrolling from April 2027), with the company paying Class 1A NIC at 15% on the premium value. That puts it in the same tax bucket as private medical insurance.
This is the opposite of group income protection and group life cover, where employer-paid premiums are normally not a benefit in kind. The flip side is favourable: because employees are taxed on the premiums, the lump sum itself is paid tax-free. Premiums are generally an allowable business expense for corporation tax, as with most staff benefits.
Price critical illness alongside your health cover
Critical illness vs PMI vs income protection: three different jobs
Critical illness cover, PMI and income protection get muddled constantly, and the confusion leads to gaps. They do genuinely different jobs, and none replaces the others.
- Private medical insurance (PMI). Funds private diagnosis and treatment — it pays hospitals and consultants, quickly. It doesn't put cash in the employee's pocket.
- Group income protection (GIP). Replaces 50–75% of salary month by month during long-term absence, for as long as the illness lasts within policy terms. Cause doesn't matter — stress and back pain qualify just as cancer does.
- Group critical illness. Pays a single lump sum on a defined diagnosis, whether or not the employee takes any time off at all. It's about financial shock absorption, not treatment or salary.
A useful way to sequence them: PMI shortens the illness, GIP protects the income, critical illness absorbs the one-off costs a serious diagnosis creates — travel to treatment, a partner reducing hours, paying down the mortgage. Employers building a full package usually buy in roughly that order; our guide to PMI vs group income protection covers the first two head to head.
What it doesn't cover — the honest list
Critical illness cover has a reputation problem inherited from poorly-sold individual policies, so it's worth being straight about the limits. The policy pays on listed conditions meeting specific definitions. Early-stage, non-invasive cancers generally don't qualify (though some policies pay a smaller partial benefit). Mental ill health — 41% of long-term absence — is not a critical illness condition and never pays out, which is exactly why critical illness cover can't substitute for GIP or decent mental health support.
Pre-existing conditions are usually excluded via a 'pre-existing conditions' or 'related conditions' clause: an employee who has already had a heart attack generally can't claim for a second one. And the survival period means the policy is about living with a diagnosis, not death — that's what group life insurance is for.
Setting it up alongside the rest of your benefits
Group critical illness is rarely the first benefit a company buys — PMI and group life usually come first — but it's a strong third or fourth layer, and one employees understand instantly: 'if I get cancer, I get £40,000'. Schemes typically start from three employees, take a week or two to set up, and renew annually.
Because it's cheap relative to PMI, it's also a common voluntary or flex benefit: the employer sets up the scheme and employees pay for their own cover (or buy extra units) at group rates, which sidesteps the BIK question entirely for employee-paid portions. We compare group critical illness alongside company health insurance, income protection and life cover, so you can see the full stack priced together before choosing what to fund.
Frequently asked questions
What does group critical illness cover pay out for?
A defined list of serious conditions meeting the policy's definitions — cancer of specified severity, heart attack and stroke are the core three and drive most claims, with a further 30–50 conditions such as MS, Parkinson's and major organ transplant typically included. It pays a lump sum on diagnosis, not ongoing bills.
How much is the typical group critical illness benefit?
Most schemes pay one or two times salary, though some use a flat sum such as £25,000 or £50,000. An employee on £40,000 with 2x cover would receive £80,000, tax-free, typically within weeks of a valid diagnosis and the 14-day survival period.
Is group critical illness cover a taxable benefit in kind?
Generally yes. Employer-paid premiums are a P11D benefit in kind for employees, and the company pays Class 1A NIC at 15% on the premium — unlike group income protection and group life, which normally aren't BIK. The lump sum itself is paid tax-free. Confirm treatment with your accountant.
How much does group critical illness cost per employee?
Indicatively £100–£300 per employee per year for 1x salary cover on a working-age team, so often £10–£25 a month per head. Age profile, benefit level and the length of the conditions list move the price. It's typically a fraction of the cost of private medical insurance.
Does group critical illness cover employees' children?
Often yes, automatically. Most group policies include children's critical illness cover — commonly a percentage of the employee's benefit capped at around £20,000–£25,000, for children up to 18 or 21 in full-time education — at no extra premium. Check the policy, as terms and age limits vary.
What's the difference between group critical illness and group income protection?
Critical illness pays one lump sum on a defined diagnosis, whether or not the employee stops working. Income protection pays a monthly income (50–75% of salary) during any long-term absence, regardless of cause. Critical illness never pays for mental health absence; GIP routinely does. Many employers eventually run both.
Does group critical illness pay out for all cancers?
No. Policies pay for cancer meeting the policy definition — generally invasive cancers of specified severity. Most non-invasive, early-stage cancers (such as many carcinomas in situ) are excluded, though some policies pay a partial benefit for certain early-stage diagnoses. This definition point is the most common source of declined claims.
Are pre-existing conditions excluded from group critical illness cover?
Usually, yes. Group schemes typically apply a pre-existing or related-conditions exclusion, so a condition an employee has already had — or one directly related to it — generally won't pay out. Otherwise, most employees join under a free cover limit with no medical questions at all.
Can employees pay for group critical illness themselves?
Yes — it's a common voluntary or flexible benefit. The employer arranges the scheme and employees buy cover (or extra units on top of employer-funded cover) at group rates through payroll. Employee-paid cover isn't a benefit in kind, since the employee bears the cost from taxed income.
How many employees do you need for a group critical illness scheme?
Most insurers set up schemes from around three employees, and some from two. Small groups get free-cover-limit underwriting like larger ones, so there are usually no medical questions. Setup typically takes one to two weeks alongside a health insurance or group life arrangement.