Small business health insurance covers your team's private treatment — consultations, diagnostics and surgery. Schemes start from 2 employees and typically cost £35–£110 per employee per month (average around £57). Premiums generally qualify for corporation tax relief, and most schemes can be set up in one to two weeks.
- ✓Group schemes start from just 2 employees — no minimum company size beyond that.
- ✓Typical cost is £35–£110 per employee/month; the average is around £57.
- ✓UK employees average 9.4 sick days a year; absence costs employers ~£103bn annually.
What small business health insurance is — and who can get it
Small business health insurance (also called a group or company scheme) is a single policy that covers your employees for private medical treatment — specialist consultations typically within days, diagnostics in one to two weeks, and routine surgery in two to six weeks. The NHS is brilliant; the waiting isn't. With the NHS waiting list at 7.3 million treatments and a median wait of 12.4 weeks, a company scheme gets your people diagnosed and back to work faster.
Most insurers — including Bupa, AXA Health, Aviva and Vitality — offer schemes from just two employees. There's no upper limit and no requirement to cover everyone, as long as you use objective criteria (more on that below). Cover can usually extend to partners and children for an extra premium.
What it costs: £35–£110 per employee per month
Price depends on your team's ages, your location, the level of cover (outpatient limits, mental health, dental and optical add-ons) and the excess you choose. Across UK small businesses the typical range is £35–£110 per employee per month, with an average around £57. Insurance premium tax (IPT) at 12% is already included in quoted premiums.
| Team profile | Cover level | Indicative cost per employee/month |
|---|---|---|
| Young team (20s–30s), office-based | Core cover, £250 excess | £35–£50 |
| Mixed-age team of 5–10 | Mid-range with outpatient cover | £50–£75 |
| Older team or director-heavy | Comprehensive, low excess | £75–£110 |
| Family cover added | Partner and children included | +£40–£90 per family |
For a five-person team at the average, that's roughly £285 a month — and because premiums are generally an allowable business expense, the net cost after corporation tax relief is lower still. See our business health insurance cost guide for a deeper breakdown.
The levers that move the price most: the excess (raising it from £100 to £250 or £500 cuts premiums meaningfully), the outpatient limit (capping consultations and diagnostics at, say, £1,000 a year rather than unlimited), and a guided-consultant option, where the insurer selects the specialist from its network. Trimming all three can bring a comprehensive quote down by a third without touching the core hospital cover.
How to set up a scheme, step by step
Setting up is quicker than most owners expect — typically one to two weeks from first quote to live cover.
- Decide who's covered. All staff, or a defined group (for example, all managers or everyone past probation). Criteria must be objective, not hand-picked names.
- Choose your cover level. Core (inpatient-focused) keeps costs down; adding full outpatient, mental health and therapies pushes towards the top of the range.
- Get comparable quotes. We compare Bupa, AXA Health, Aviva, Vitality, WPA and The Exeter on a like-for-like basis.
- Pick underwriting. Most small groups use a moratorium (see below); larger groups may qualify for medical history disregarded.
- Sign and share. The insurer issues membership documents; employees register online and can usually claim from day one.
Compare small business health insurance
Underwriting: how pre-existing conditions are handled
Underwriting decides how each member's medical history affects their cover. Small groups (typically 2–14 employees) are usually offered a moratorium: conditions from the last five years are excluded, but can generally become eligible again after two years without symptoms, treatment or advice. Nobody fills in a health questionnaire, which keeps admin light.
Larger groups — often 15–20 employees or more, depending on the insurer — may qualify for medical history disregarded (MHD), where pre-existing conditions are covered from day one. It's one of the strongest arguments for a proper group scheme as you grow. Our underwriting guide explains the options in detail.
Tax: what it costs the company and your employees
In brief: premiums are generally an allowable expense for corporation tax, so a £1,000 premium typically costs around £750–£810 net depending on your corporation tax rate. Employees are taxed on the cover as a benefit in kind, and the company pays Class 1A National Insurance at 15% on the premium value. BIK is currently reported via P11D, moving to real-time payrolling from April 2027.
The full picture — worked examples, sole trader rules and what employees actually pay — is in our tax deductibility guide.
Why small businesses offer it
UK employees average 9.4 sick days a year, and absence costs employers around £103bn annually. For a small team, one person waiting months for a scan or operation is felt immediately — there's no slack to absorb it. Private cover shortens that gap from months to weeks.
- Recruitment and retention. Health cover is consistently rated the most-valued voluntary benefit — yet only around 31.5% of employers offer it, so it still differentiates.
- Faster return to work. Consultation in days and surgery in weeks, rather than a 12.4-week median NHS wait just to start treatment.
- Mental health support. Mental ill health accounts for 41% of long-term absence; most group schemes include talking therapies and helplines.
Frequently asked questions
What is the minimum number of employees for business health insurance?
Two. Most major insurers — including Bupa, AXA Health, Aviva and Vitality — offer group schemes from two employees. Below that, a single director would typically buy an individual policy through the company instead, though a couple of insurers will quote 'group of one' arrangements.
How much does health insurance cost for a small business?
Typically £35–£110 per employee per month, with a UK average of around £57. A young office-based team with a modest excess sits at the lower end; older teams with comprehensive cover and low excesses sit at the top. IPT at 12% is already included in quotes.
How quickly can we set up a company health insurance scheme?
Usually one to two weeks from quote to live cover, and sometimes faster. Moratorium underwriting means no medical questionnaires, so once you've chosen an insurer and confirmed the member list, cover can typically start from the next convenient date you pick.
Can I choose which employees get health insurance?
Yes, but use objective criteria — all managers, all full-time staff, or everyone past probation, for example. Hand-picking named individuals risks discrimination claims and can complicate the tax position. Insurers will ask you to define eligible categories rather than list favourites.
Do all eligible employees have to join the scheme?
No. Employees can normally opt out if they wish, though because the employer pays the premium, uptake is usually very high in practice. Some insurers set a minimum participation level for the best rates, so check before assuming half the team can decline without affecting pricing.
Can employees add partners and children to a company scheme?
Usually yes. Family members can typically be added for an extra premium — indicatively £40–£90 per family per month depending on ages and cover. Some employers pay for dependants; many let employees fund them via payroll deduction, which keeps the company cost fixed.
What does a typical small business policy actually cover?
Core cover includes inpatient and day-patient treatment — surgery, hospital stays, cancer care. Most SMEs add outpatient cover for consultations, diagnostics and scans, plus mental health support. Chronic condition management, GP-referred routine care and pre-existing conditions (under moratorium terms) are the usual exclusions.
Do small businesses need a broker to buy health insurance?
No, you can buy direct — but comparing matters, because insurers price the same team very differently. A comparison service or specialist intermediary gets like-for-like quotes across Bupa, AXA Health, Aviva, Vitality, WPA and The Exeter without costing you more, as commission is built into premiums either way.
Are pre-existing conditions covered on a small company scheme?
Generally not at first. Small groups usually take moratorium underwriting: conditions from the past five years are excluded, but typically become eligible again after two trouble-free years. Larger groups (often 15–20+ employees) can get medical history disregarded terms, which cover pre-existing conditions from day one.
Is a health cash plan the same as small business health insurance?
No. A cash plan pays small fixed amounts towards everyday costs — dental check-ups, glasses, physio — for a few pounds per employee monthly. It doesn't fund private surgery or fast-track diagnosis. Some firms run both: insurance for the serious events, a cash plan for routine extras.