Key Person vs Shareholder Protection

Decision Guide

Key Person vs Shareholder Protection

Both pay out a lump sum when a director or owner dies or becomes critically ill, but Key Person Insurance protects the business from financial loss, while Shareholder Protection lets the remaining owners buy back the deceased’s stake. The difference: are you trying to keep the company running, or keep control of who owns it?

By Natalie Brown, Senior Business Protection SpecialistUpdated June 2026 · 6 min read

Our verdict

For most SMEs with two or more shareholders, Shareholder Protection is usually a useful policy.

Without it, a deceased owner’s shares typically pass to their estate, potentially leaving a spouse or family member as an unintended business partner. Shareholder Protection, when paired with a cross-option agreement, lets remaining owners buy those shares at a pre-agreed value, which can be up to 100% of the shareholding depending on your circumstances. Key Person Insurance becomes the better choice, or an important addition, where the business relies heavily on one individual for revenue, expertise or relationships. It can also be used to demonstrate financial resilience to lenders.

The short answer

Key Person

A life (or critical illness) policy owned and paid for by the business, which pays out to the company if a key individual, typically a director, salesperson, or specialist, dies or is diagnosed with a critical illness. The money helps the business absorb the financial shock of losing them.

Shareholder Protection

A collection of individual life (or critical illness) policies, each owned by and written in trust for the other shareholders, designed to fund the purchase of a deceased or critically ill shareholder’s equity stake. Typically combined with a cross-option agreement to formalise the buyout.

The core difference

Key Person Insurance pays the company to survive the loss of a person. Shareholder Protection pays the surviving owners to buy out the shares of that person.

Which is right for you?

Choose Key Person Insurance if…

One person generates a disproportionate share of revenue or client relationships
The business has a bank loan or director’s personal guarantee that would fall due on death
You need to demonstrate financial resilience to investors or lenders
A specialist’s skills would take time to replace at significant cost
You are a sole director with no co-shareholders but employ key staff
The business is in early growth and relies heavily on the founder

Choose Shareholder Protection if…

You have two or more shareholders and no plan for what happens to shares on death
You would be uncomfortable running the business alongside a deceased partner’s spouse or estate
Your shareholders’ agreement does not include a buy/sell mechanism
A shareholder’s family may not be able to fund a buyout independently
You want to agree a valuation method now, before emotions or disputes arise
Your business is profitable enough that shares represent significant personal wealth

Side-by-side comparison

Nine points, each opens for the detail

Key Person

Shareholder Protection

Key Person:The businessPays from company funds.

Shareholder Protection:Each shareholderEach shareholder pays their own premiums personally.

Key Person:Often taxablePremiums generally not tax-deductible; payout taxable as a trading receipt unless solely for debt protection. Seek advice.

Shareholder Protection:Generally outside the estatePersonally-paid premiums attract no business tax relief; payout typically falls outside the estate if written in trust.Better here

Key Person:Revenue and continuityThe business’s revenue, loan repayment ability, and operational continuity.

Shareholder Protection:Ownership and controlOwnership structure and the ability of remaining shareholders to retain control.

Key Person:The companyPaid directly to the business.

Shareholder Protection:Surviving shareholdersThe surviving shareholders, via trust, to fund the share purchase.

Key Person:Relatively straightforwardCompany applies and underwrites the individual.Better here

Shareholder Protection:More moving partsEach shareholder needs their own policy, plus a cross-option agreement and shareholder agreement review.

Key Person:Profit contributionOften based on a multiple of the individual’s contribution to profit or revenue, up to insurer limits.

Shareholder Protection:Share valuationBased on current share valuation; needs reviewing as the business grows.

Key Person:NoDoes not address who ends up owning the shares.

Shareholder Protection:YesThe core purpose of the policy.Better here

Key Person:YesPayout can service loans or reassure lenders.Better here

Shareholder Protection:Not directlyAimed at ownership, not debt.

Key Person:Revenue-dependent firmsBusinesses dependent on revenue-generating individuals, or those with personal guarantees on loans.

Shareholder Protection:Multi-owner companiesCompanies with two or more shareholders who want ownership continuity.

Real-world scenarios

Illustrative examples showing how the decision tends to play out. Names and figures are for illustration only.

Scenario 1

Will and Gabby, two directors of a PR agency

Will holds all client relationships and brings in around £400,000 of the firm’s £500,000 annual revenue. The business also has a £150,000 bank loan with a personal guarantee.

Read the full scenario

If he died tomorrow, the business could lose most of its income almost immediately while still servicing debt.

A Key Person policy would give Gabby and the company breathing room to retain clients, hire a replacement, or wind down responsibly.

Scenario 2

Fiona and Helen, 50/50 co-founders of a manufacturing business

Each owns 50% of a profitable business valued at £1.2 million. Neither has a will that accounts for their shares.

Read the full scenario

If one died, their 50% stake would pass to their estate. The surviving partner could find themselves running the business with their co-founder’s estate, who may have very different views.

Shareholder Protection, each policy written in trust for the other, alongside a cross-option agreement, could enable a clean buyout without the surviving partner needing to find £600,000 from personal funds.

Scenario 3

Martin, lead earner and majority shareholder of a consultancy

A three-shareholder consultancy has one director, Martin, who is both the lead earner and the largest shareholder, holding 60%. He is also the personal guarantor on a £200,000 overdraft facility.

Read the full scenario

Here, Shareholder Protection addresses the ownership gap, as his 60% stake would otherwise pass to his estate, but it does nothing to protect the business from losing its biggest biller or service the overdraft.

Both policies could be warranted in this scenario.

The rule of thumb

If you are asking “what happens to the company if we lose this person?”Key Person Insurance

If you are asking “what happens to the shares?”Shareholder Protection

Frequently asked questions

Can I have both Key Person Insurance and Shareholder Protection at the same time?

Yes, and many businesses with director-shareholders do. They solve different problems. Key Person Insurance is designed to protect the business’s finances. Shareholder Protection clarifies ownership structure. Having both is common where a director is also a significant shareholder. Your adviser can help you prioritise if budget is limited, though premiums for each tend to be modest relative to the risk they cover.

Are Key Person Insurance premiums tax-deductible?

Generally, no. HMRC’s default position is that premiums are not an allowable business expense, and the payout is taxable as a trading receipt. There is a narrow exception where the policy is purely for loan protection. Tax treatment can be complex and changes over time; you should take specific tax advice before relying on any relief. This is not tax advice.

What is a cross-option agreement and do I need one?

A cross-option agreement is a legal document that gives surviving shareholders the option to buy a deceased shareholder’s stake, and the estate the option to sell it, at a pre-agreed or formula-driven price. Without one, neither party can be forced to transact. For Shareholder Protection to work as intended, a cross-option agreement is strongly recommended. It also helps preserve Business Relief for inheritance tax purposes, though you should seek legal advice on this.

How do I value the business for Shareholder Protection?

Common methods include a multiple of EBITDA, net asset value, or a formula set out in your shareholders’ agreement. The key is to agree a method now, ideally written into the cross-option agreement, rather than leaving it to negotiation at a difficult time. Cover should be reviewed regularly as the business grows, since an under-insured policy may not fund a full buyout.

Does Shareholder Protection pay out for critical illness, not just death?

Many policies can include critical illness cover, which pays out if a shareholder is diagnosed with a specified condition, typically serious illness such as cancer, heart attack, or stroke, and survives beyond a set period (often 14 or 30 days). This is worth considering: a shareholder who becomes critically ill but does not die may still be unable to contribute to the business. Conditions covered vary between insurers, so review policy wording carefully.

We are a small business, are Key Person Insurance or Shareholder Protection worth it?

Smaller businesses are often more exposed, not less: they tend to have fewer people to absorb the impact of a loss, less cash reserves to fund a buyout, and personal relationships that complicate negotiations with an estate. An IGotCover adviser can give you advice on what’s best for your business based on your circumstances.

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Not sure which is right for you?

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This guide is general information about how these policies work and is not personal advice or a recommendation. Tax treatment depends on your individual circumstances and the rules may change. The figures in the scenarios are illustrative only. Consider speaking to a qualified adviser before deciding what is right for you.

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