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Key Person (Key Man) Insurance Calculator (UK)

Estimate a sensible level of Key Person cover in seconds. Enter annual earnings and we’ll apply accepted UK salary multiples to suggest Life and Critical Illness cover, plus guidance on what to consider next.

Enter details

If you only know base salary, enter that—your estimate will still be useful.
Tip: Insurers often cross-check salary multiples against company size and profitability, especially for higher sums assured. This calculator gives you a quick rule-of-thumb estimate — the exact cover required can vary depending on your business, industry, and the individual’s role.

Results

Life cover Sum assured (10× earnings)
£0
A quick estimate based on 10× annual earnings.
Critical illness cover Sum assured (5× earnings)
£0
A quick estimate based on 5× annual earnings.
How this calculator works (methodology & assumptions)

We use accepted market heuristics to estimate cover quickly:

  • Life cover = 10× annual earnings (salary plus, where known, bonuses/benefits).
  • Critical illness cover = 5× annual earnings.

Why these multiples? Death typically causes a longer disruption to profits, client relationships and leadership continuity than a critical illness (where the person may recover and return), hence the higher multiple for life cover.

Sanity check: Many advisers also keep total key person cover within sensible bounds versus the overall size and profitability of the business.

What affects the amount of cover?
  • How central this person is to sales, delivery, or leadership continuity.
  • Time to recruit, onboard, and return to normal performance.
  • Client concentration and goodwill at risk if they’re absent.
  • Company size and profitability (often cross-checked for higher sums assured).
Worked examples

Example A — Small consultancy (10 staff)
Salary £85,000 → Life £850,000; CI £425,000.
Rationale: Principal consultant drives client retention. Insurer likely to check recent profits and client concentration.

Example B — E-commerce brand (key ops lead)
Salary £60,000 → Life £600,000; CI £300,000.
Rationale: Ops lead mitigates supply chain risk; recruitment/onboarding costs and time-to-recover matter.

Key person calculator — FAQs

How do we sanity-check this estimate?

Sense-check it against the individual’s profit impact and leadership role, recruitment/onboarding costs and how long you’d take to recover, plus your company’s size and profitability (often cross-checked for higher sums assured).

Should we include bonus and benefits?

Yes, where known. Using total annual remuneration gives a more complete estimate. If unknown, start with base salary and refine later.

Why is Life 10× and Critical Illness 5×?

They’re accepted UK heuristics for quick estimates. Death typically causes a longer disruption to the business; CI impact may be temporary if the person returns.

What if this estimate seems too high or too low for our business?

That’s normal—every business is different. If the number feels off, consider how reliant you are on this person, your profitability, client concentration, and time to replace. When you’re ready, request a quote and a specialist will confirm a suitable amount and provide actual premiums.

Can we choose different amounts for Life and Critical Illness?

Yes. Many businesses set a higher Life sum assured and a lower CI amount to reflect risk and budget.

Reviewed by: Jody Pearmain
Founder, MyKeyManInsurance.com — specialist broker in Key Person, Relevant Life and Shareholder Protection.
Last reviewed: 03 Oct 2025

Important: This calculator provides an educational estimate only and does not constitute personal advice. Policy availability and pricing depend on underwriting. Always review tax implications with a qualified professional and seek regulated financial advice before arranging cover.

MyKeyManInsurance.com

UK’s Number One Business Protection Specialist.