Group critical illness (CI) insurance is a benefit provided by an employer that pays a lump sum to an employee on diagnosis of one of a defined list of serious conditions — most commonly cancer, heart attack, stroke, and a range of other conditions as specified in the policy. Unlike group life insurance (which pays on death) or group income protection (which replaces salary during illness), group critical illness provides a capital sum that the employee can use however they choose — to fund private treatment, adapt their home, pay off a mortgage, or simply provide financial security during a difficult period.
Despite being one of the more valuable employee benefits available, group CI remains less widely adopted than group life and group income protection. For many employees, it fills a gap: income protection replaces earnings but not capital expenses; life insurance protects dependants but not the insured themselves.
This guide explains how group CI schemes work, how to design them, and the tax and practical considerations for UK employers.
This is general information only. Employee benefits rules, tax treatment, and insurance market terms are complex and subject to change. You should take qualified advice before establishing or amending any employee benefits scheme.
How Group Critical Illness Insurance Works
A group CI policy is taken out by an employer for the benefit of its employees. When a covered employee is diagnosed with a qualifying condition and satisfies the relevant survival period (typically 14-30 days, depending on the condition and insurer), a lump sum benefit is paid — either directly to the employee or to the employee's estate if they die during the survival period.
The benefit amount is typically expressed as a multiple of salary (most commonly one to four times salary) or as a fixed sum for all employees. Payment is made once per employee per qualifying event; some policies allow cover for multiple claims subject to defined conditions (e.g. a second different qualifying condition).
Conditions Covered
Group CI policies cover a defined list of conditions, agreed with the insurer at the outset. The ABI model conditions (maintained by the Association of British Insurers) provide a standard framework that most UK insurers use as a baseline. Core conditions covered by virtually all group CI policies include:
- Cancer (of specified severity — typically invasive cancer, excluding less advanced cases)
- Heart attack (of specified severity, confirmed by defined cardiac enzyme and ECG criteria)
- Stroke (with permanent neurological deficit)
- Coronary artery bypass surgery
- Kidney failure
- Major organ transplant
- Multiple sclerosis (with definite diagnosis and specific functional deficit)
- Blindness (permanent and irreversible)
- Deafness (permanent and irreversible)
- Paralysis of limbs
- Total permanent disability (as defined)
More comprehensive group CI policies extend coverage to 20, 30, or more conditions. Additional covered conditions commonly include Parkinson's disease, motor neurone disease, aortic aneurysm, benign brain tumour, primary pulmonary hypertension, and various other serious conditions.
Children's cover: many group CI policies offer a children's CI benefit as standard or optional extra, paying a smaller sum (often £5,000-£25,000) on a child of the covered employee being diagnosed with a qualifying condition.
Benefit Design
Benefit Level
The most common structures are:
- Multiple of salary: two or three times annual salary is typical. This aligns the benefit with the individual's financial responsibilities (which broadly correlate with income) and is simple to administer using payroll data.
- Fixed sum: a flat amount for all employees — for example, £50,000 per employee. Simpler to communicate and budget, but less responsive to the different financial needs of employees at different salary levels.
- Tiered structure: different benefit levels for different employee grades (senior executives on four times salary; all others on two times). Suitable for employers who wish to provide a more generous benefit for senior staff.
Benefit Limits
Insurers impose maximum individual benefit amounts on group CI schemes. These typically range from £250,000 to £500,000 per employee for small to medium-sized schemes, with higher limits available for larger schemes or with additional underwriting.
For very high-earning executives, the group CI benefit limit may be insufficient to provide meaningful income replacement. In these cases, a combination of group and individual CI cover may be appropriate.
Free Cover Limit
Like group life insurance, group CI schemes typically have a free cover limit (FCL) — the maximum benefit that can be provided to any individual employee without requiring individual medical underwriting. Employees below the FCL are accepted without medical questions; employees whose benefit would exceed the FCL require individual underwriting.
The FCL varies by insurer and scheme size. Larger schemes typically attract higher FCLs, meaning fewer employees need to undergo individual underwriting.
Eligibility and Waiting Periods
Eligible Members
Group CI cover is typically offered to all employees who meet defined eligibility criteria — for example:
- Permanent employees working above a minimum hours threshold (often 16 or 24 hours per week)
- Employees who have completed a qualifying period of service (commonly three or six months)
- Employees aged between a minimum age (typically 16) and maximum age (typically 60-65, or the normal retirement age)
Part-time employees, contractors, and temporary workers may be excluded. The eligibility criteria should be defined clearly in the scheme terms and communicated consistently to all employees.
Pre-Existing Conditions
Group CI schemes typically apply a pre-existing condition exclusion: conditions that the employee had symptoms, treatment, or medical advice for during a defined look-back period (often 12-24 months before joining the scheme) are excluded from cover.
This differs from individual CI policies, where full medical underwriting at the outset provides certainty about what is and is not covered. The group pre-existing conditions approach is administratively simpler but creates uncertainty for individual employees about the scope of their cover.
Tax Treatment
For Employers
Premiums paid by an employer for group CI cover are not deductible for corporation tax in the same straightforward way as group life premiums. This is a distinction that is often misunderstood.
Group life (death in service): employer premiums are generally deductible as a business expense under the "wholly and exclusively" test, as the benefit is provided for the purposes of the trade.
Group CI: the tax position is less settled. HMRC accepts that premiums paid by an employer for a group CI scheme can be deductible where the benefit is part of the employee's remuneration package. However, HMRC may scrutinise cases where the employer (rather than the employee) is the beneficiary of the policy — for example, where the CI cover is framed as key person-type cover. Specialist tax advice is advisable.
For Employees
Group CI benefits received by an employee on a qualifying claim are generally:
- Free of income tax: lump sums received under a life policy (including group CI) are generally not subject to income tax in the employee's hands under ITTOIA 2005, provided the conditions for tax exemption are met.
- Not subject to NIC: lump sum insurance benefits are not earnings and do not attract National Insurance contributions.
However, premiums paid by the employer may constitute a taxable benefit in kind for the employee. Under current HMRC guidance, employer-paid CI premiums are generally reportable on the employee's P11D as a benefit in kind, subject to income tax. The Class 1A employer NIC is also payable on the value of the benefit.
This creates a cost consideration: the employee pays income tax on the employer's premium, but receives the benefit free of tax. Whether the net position is favourable depends on the employee's marginal tax rate and the size of the premium relative to the benefit.
Some employers "gross up" the tax cost, meeting the income tax liability themselves so that the employee's net position is unchanged. This is a commercial decision.
Group CI as Part of the Employee Benefits Package
Group CI sits alongside group life, group income protection, and private medical insurance in a well-designed employee benefits package. The respective roles are:
| Benefit | Purpose |
|---|---|
| Group life (death in service) | Capital for dependants on death |
| Group income protection | Replaces salary during long-term illness |
| Group critical illness | Capital lump sum on diagnosis of serious illness |
| Private medical insurance | Pays for private treatment |
Group CI is complementary to (not a substitute for) group income protection. IP replaces the employee's ongoing income; CI provides a capital sum for one-off costs that income replacement does not cover.
For small employers who cannot afford the full suite of group benefits, group CI provides a meaningful benefit at a relatively modest premium and is often valued highly by employees who appreciate the tangible capital-sum nature of the benefit.
Insurer Selection and Ongoing Administration
Leading UK insurers in the group CI market include Aviva, Unum, Canada Life, Legal & General, and MetLife. The quality of underwriting, claims handling, and additional services (rehabilitation, employee assistance programmes) varies. Key selection criteria:
- Free cover limit relative to the workforce profile
- Breadth of conditions covered (number and definition quality)
- Whether children's CI is included
- Insurer financial strength and claims track record
- Premium rate stability and renewal history
- Quality of digital member communications and claims reporting
Annual administration involves updating insurer records for joiners, leavers, and salary changes, reviewing adequacy of the free cover limit, and renewing the policy on satisfactory terms.
How Global Investments Can Help
Global Investments advises businesses on the design and procurement of group CI schemes as part of a broader employee benefits strategy. We assess the right benefit level, eligibility design, and insurer selection for your workforce profile, and advise on the tax implications for both the employer and employees.
For owner-managed businesses and professional partnerships, we often advise on combining group CI with individual CI and business protection solutions to ensure comprehensive coverage at both the personal and business levels.
Contact us to discuss group CI or a broader employee benefits review.
This guide reflects UK insurance and tax rules as at June 2026. Tax treatment of employer-paid CI premiums is subject to HMRC interpretation and may change. This article is for general information only and does not constitute regulated financial, tax, or legal advice. Always seek qualified professional advice before establishing or amending any employee benefit scheme.
This guide is for general information only and does not constitute financial or insurance advice. Policy terms, premium rates, and insurer eligibility criteria change — always verify current terms with a qualified independent adviser before taking out any policy.