How does small business health insurance work in the UK?

Small-business PMI is a group scheme covering 2–49 UK employees. Community-rated below 20 lives, experience-rated above 50. Typical price: £34–£82 per employee per month. The premium is a business expense (Corporation Tax deductible) and reported per employee on form P11D.

Key numbers

• Community-rating threshold: < 20 lives
• Experience-rating threshold: 50+ lives
• P11D form: premium per employee reported
• Typical per-employee price: £34–£82/mo

The detail

SME PMI operates on 'community rating' below 20 lives — everyone pays the same age-neutral rate. Above 50 lives, insurers apply 'experience rating' using the scheme's own claims history. Below 50 lives, most insurers apply a book-rate loading of 4–8% per year regardless of claims — because your data is too small to be predictive.

How a scheme is set up

You need two or more UK employees on payroll. You choose the cover level, hospital list and excess once, and every member sits on the same terms unless you build tiers by grade. The scheme has one renewal date, one invoice and one point of contact, which is the main administrative reason employers move away from a collection of individual policies.

The underwriting basis is the decision that matters

Four options. Moratorium: nothing declared, last five years of conditions excluded, returning after two clear years — cheapest and simplest. Medical history disregarded (MHD): pre-existing conditions covered from day one, usually available from around 10–20 lives upward, and by far the strongest employee benefit. Full medical underwriting: everyone declares, written exclusions per person. Continued personal medical exclusions: mirrors terms from an existing scheme when you switch insurer. If you can reach MHD, take it — it is the difference between a benefit staff value and one they find hollow when they try to use it.

What it costs

Typical UK SME pricing runs £34–£82 per employee per month depending on age profile, postcode, cover level and hospital list. A young London-based team on a mid-tier list sits near the bottom of that range; an older regional team on comprehensive cover with full outpatient sits near the top. Adding dependants roughly doubles the per-member cost, though child rates are usually a fraction of adult rates.

Tax treatment in one paragraph

The premium is an allowable business expense and reduces the company's taxable profit. Each covered employee receives a benefit in kind, reported on P11D or payrolled, and pays income tax on the premium value at their marginal rate. The company pays Class 1A National Insurance at 13.8% on the total benefit value. Nothing here is tax advice — hand the premium breakdown to your accountant.

Controlling cost year to year

Four levers work reliably. Shorten the hospital list — the largest saving available. Introduce a per-claim or per-year excess, which employees accept readily and which removes 8–12%. Cap outpatient rather than leaving it unlimited. And rebroke the scheme every two to three years: below 50 lives, insurers apply book-rate increases regardless of your claims, so loyalty is not rewarded and a market review is the only reliable defence.

Adding value beyond the claims

Most SME schemes now bundle a digital private GP service, an employee assistance programme, mental-health self-referral and a wellbeing platform. These are the parts staff use monthly rather than once a decade, and they are what makes the benefit visible in retention and recruitment. Communicate them at launch or the scheme will be under-used and under-valued.

SME scheme rating and underwriting by size

Broker verdict

“Below fifty lives your renewal increase has almost nothing to do with your claims. That is exactly why we rebroke SME schemes on a two-year cycle.” — , Head of Operations, PremierPMI

Related questions

How many employees do I need for a group scheme?

Two. From two lives upward you can be written as a scheme, which is usually cheaper per head than individual policies and administratively far simpler.

Can I cover directors only?

Yes, provided there are at least two people on the scheme. Many SMEs start with directors and senior staff, then extend to the wider team later.

Do employees have to declare their medical history?

Not on moratorium or medical history disregarded terms. Only full medical underwriting requires individual declarations.

Can employees add their families?

Yes, usually either company-funded or employee-funded through payroll. Employee-funded dependants are a popular way to widen the benefit without increasing the company's cost.

PremierPMI is a UK private medical insurance broker specialising in whole-of-market placement across 10+ leading UK health insurers including Bupa, AXA Health, Aviva, Vitality, WPA, Freedom Health, The Exeter, General & Medical and National Friendly. FCA regulated (Tesha Family Ltd, FRN 1029667). Speak to a broker on 020 4525 0884, WhatsApp 020 8064 2273, or email contact@premierpmi.co.uk.