What Is Premium Equalisation in Shareholder Protection Insurance?
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When shareholders take out shareholder protection, each person's premium is priced individually on their own age and health, but what they would actually gain if another shareholder died depends on the shareholding they already hold, not on what their own policy costs. Premium equalisation is the calculation that corrects for that mismatch: it works out what each shareholder should really pay based on the value of the benefit they stand to receive, not the premium for the policy on their own life. Without it, HMRC can treat the gap between what someone pays and what they'd gain as a transfer of value between shareholders, which can create an unexpected inheritance tax bill for the survivors.
Key facts
- Shareholder protection is usually set up as an own-life policy in trust, with the company paying the premiums: each shareholder's own life is insured, written into trust for the benefit of the other shareholders.
- Cover is set proportionate to each shareholder's equity, so someone owning 50% of a £1 million company takes out £500,000 of cover.
- If a shareholder dies, their shares are bought by the survivors in proportion to what the survivors already own, so the value each survivor gains isn't split evenly.
- Because a shareholder's own premium is priced on their personal age and health, not on the value they'd gain from someone else's death, an unequal arrangement can look like a gift between shareholders to HMRC.
- Premium equalisation recalculates a fair monthly premium for each shareholder based on the benefit they would actually receive, and benefit-in-kind is charged on that equalised figure, not the raw premium.
How is shareholder protection normally set up?
In most instances, the company pays the premiums. Each shareholder takes out a policy on their own life, written into trust for the benefit of the other shareholders, as covered in our piece on shareholder protection and benefit-in-kind. If a shareholder dies, or becomes critically ill, the policy pays into the trust, giving the remaining shareholders the funds to buy the affected shareholder's stake, exactly as agreed in the cross-option agreement.
Take a company worth £1,000,000 with three shareholders. John owns 30% and takes out £300,000 of cover; David owns 60% and takes out £600,000; Steve owns 10% and takes out £100,000. Because premiums are priced on age and health rather than shareholding, the monthly cost of each policy varies too, even though each sum assured matches its owner's stake exactly.
| Shareholder | Equity in the business | Sum assured (cover) | Monthly premium (own life, pre-equalisation) |
|---|---|---|---|
| John | 30% | £300,000 | £200 |
| David | 60% | £600,000 | £100 |
| Steve | 10% | £100,000 | £50 |
Why doesn't the raw premium reflect what each shareholder would actually receive?
The catch is that the person who benefits from a shareholder's death isn't the shareholder who was insured, it's the survivors. If John dies, his 30% stake isn't split evenly between David and Steve: it's redistributed in proportion to what they already own, so David picks up the larger share and Steve the smaller one.
| If this shareholder dies | Their stake is redistributed to survivors as |
|---|---|
| John (30%) | David 85.71%, Steve 14.29% |
| David (60%) | John 75%, Steve 25% |
| Steve (10%) | John 33.33%, David 66.67% |
That means David and Steve each gain a specific, calculable value if John dies, and John gains a different value again if David or Steve dies, and none of that is reflected in what anyone is actually paying for their own policy. John's £200 a month buys cover on his own life; it says nothing about what he stands to gain from David's or Steve's death.
How does premium equalisation work?
Premium equalisation weighs up the benefit each shareholder would actually receive across every possible death scenario and recalculates a fair monthly premium for each of them on that basis, rather than the premium for their own life cover. For John, David and Steve, the figures work out like this:
| Shareholder | Pre-equalisation premium | Equalised monthly premium (BIK basis) |
|---|---|---|
| John | £200 | £91.97 |
| David | £100 | £204.76 |
| Steve | £50 | £53.57 |
Notice the total monthly pool barely moves, £350 either way, only how it's split between the three shareholders changes. David's equalised premium is far higher than his own-life premium because he stands to gain the most if either John or Steve dies: he already owns 60% of the business, so he picks up the largest share of whichever stake is redistributed. Steve's premium moves only slightly, because his 10% stake means he gains comparatively little either way.
Who calculates premium equalisation?
This isn't a back-of-an-envelope sum. It's normally worked out by your accountant, often alongside your adviser, and most insurers also provide premium equalisation calculators on their own websites to model the figures for a specific shareholder structure.
Why does HMRC treat unequal premiums as a gift risk?
HMRC generally treats an unequal arrangement, where one shareholder pays disproportionately more than the value they stand to receive, as a transfer of value, or gift, from the shareholders paying the most to those paying the least. If a shareholder then dies, the survivors could face an inheritance tax bill on that gift, on top of whatever else forms part of their estate. Equalising the premium removes that risk by making sure what each shareholder pays lines up with what they stand to gain.
What happens if premium equalisation isn't applied?
Skipping equalisation doesn't stop the policies paying out, but it leaves each shareholder's benefit-in-kind, and their true financial position, tied to the premium for their own life rather than to what they would actually receive. Left unaddressed, that mismatch is exactly the kind of unequal treatment HMRC's gift and transfer-of-value rules are alert to, so most advisers build equalisation into the arrangement from the outset rather than trying to fix it once cover is already in place.
FAQs: Premium equalisation in shareholder protection
Does premium equalisation change how much cover each shareholder has?
No. Cover stays tied to each shareholder's equity in the business. Equalisation only changes the premium figure used for tax and value purposes, not the sum assured itself.
Who works out the premium equalisation figures?
Normally your accountant, often working with your adviser. Most insurers also provide premium equalisation calculators to model the numbers for your specific shareholder structure.
What happens if premium equalisation isn't applied?
The benefit-in-kind, and the value each shareholder is treated as receiving, stays tied to the cost of insuring their own life rather than what they would actually gain, which HMRC can treat as a gift between shareholders.
Does it matter whether the company or the shareholder pays the premiums?
The company usually pays the premiums, so each shareholder's benefit in kind is based on their equalised figure. The mismatch between what someone pays and what they would gain from another shareholder's death exists whoever pays, so equalisation is always needed.
Why are the redistribution percentages different for each shareholder?
Because a deceased shareholder's stake is bought by the survivors in proportion to what they already own, not split evenly, the value each survivor gains depends on the whole shareholding structure, not just their own stake.
Written by
Alex Ogden DipFA | Director | Executive Life
Alex Ogden DipFA holds the Level 4 Diploma for Financial Advisers (DipFA) awarded by the London Institute of Banking and Finance (LIBF). He is authorised by the FCA, Ref: AJO01072. View the FCA register entry.
This article is for general information only and does not constitute financial, tax or legal advice. Tax treatment depends on individual circumstances and may change in future. Executive Life is authorised and regulated by the Financial Conduct Authority. Speak to a qualified adviser before making any decisions based on this content.