One Child Runs It, Three Don't: Splitting a Business Fairly

One of your children has spent years in the business. They turn up before everyone else, they carry the worry home at night, and they are the reason the firm is worth what it is. The other three have their own lives, in other places, doing other things. You want to be fair to all four, and you have worked out that dividing everything into equal quarters is the fair thing to do. It usually is not — and the way to leave a business to one child and money to the others without tearing the family apart is to stop trying to split the business itself.

The honest answer to leaving a business to one child fairly is this: leave the business to the child who runs it, and give the other three their fair share from money that comes from outside the business. Splitting the shares four ways feels even-handed on paper and tends to satisfy nobody, because it hands three people who do not work in the company a say over the one who does, and leaves them holding something they can neither control nor sell.

This article sets out why equal shares fail, how families equalise properly with assets from outside the business, and how a policy written in trust can create the outside money that makes the whole thing work — so the business itself stays in one piece.

The short answer: equalise, do not subdivide

There are two completely different ways to be fair, and families reach for the wrong one. The instinct is to divide the asset — cut the shares into four and give everyone a quarter. The better approach is to leave the asset whole and even things up with value from elsewhere, so each child ends up with a fair total even though they receive different things.

The working child gets the business. The other three get an equivalent value in cash or other assets. Nobody ends up as an unwilling co-owner, the child running the firm is not second-guessed by siblings who have never sat in the meetings, and the business survives intact into the next generation. This is what "equalisation" means, and it is the standard tool for exactly this situation.

Why dividing the shares equally usually fails

An equal split looks like the safe, neutral choice. In practice it creates a governance problem that outlasts you.

Give each of four children a quarter of the shares and the one who runs the business now answers to three who do not. Every decision that a working owner makes without a second thought — how much to pay themselves, whether to take a dividend or reinvest, whether to buy the new machine or the new van — becomes a decision three outsiders can question. The three non-working children, meanwhile, are minority shareholders in a private company. They cannot force a dividend, they cannot compel a sale, and there is no market for a minority stake in a small family firm. They hold a number on a piece of paper that they can neither spend nor exit.

Resentment builds from both directions. The working child feels they are running the business for the benefit of siblings who take no risk and do no work. The others feel shut out of an asset they supposedly co-own but see nothing from. Disputes among shareholders in a small company are hard to resolve and expensive to litigate, and the structural roots of that kind of deadlock are the same ones we examine in a one-owner company where a single death leaves nobody able to act. An equal split, meant to keep the peace, plants the seed of the fight.

The equalisation problem: the business is most of the estate

Equalisation is easy to describe and hard to fund, because of one uncomfortable fact: for most business-owning families, the business is not just the biggest asset in the estate — it is nearly all of it.

If the firm is worth, say, four fifths of everything you own, then leaving it to one child and dividing the rest among the other three does not come close to fair. The working child gets four fifths; the other three share the remaining fifth between them. To equalise properly you need enough value outside the business to give each of the other children something like a matching share, and by definition that money is the money you do not have, because it is all tied up in the company.

This is the same liquidity trap that forces some families to sell a business to pay a tax bill: the wealth is real but it is not in a form anyone can hand over. The way out is to create outside money deliberately, in advance, rather than hoping it materialises when you die.

Where the outside money comes from

There are only a few honest sources of the equalising value, and it is worth being clear-eyed about each.

• Other assets you already hold. A second property, an investment portfolio, savings. Straightforward where they exist and are large enough, which for most families they are not.
• Pension death benefits. Money in a pension can often be directed to chosen beneficiaries and can sit outside the estate, making it a natural equalising asset — though the rules on how pensions are taxed on death are changing, so this needs checking rather than assuming.
• A life policy written in trust for the non-working children. This is the tool designed for the job. It creates a defined sum, payable on your death, that goes to the children who are not getting the business — turning an unfair split into a fair one at the moment it matters.

The policy route is the one families reach for when the first two are not enough, which is most of the time. A policy held in trust for the three non-working children pays them directly. It does not pass through the will, it does not wait for probate, and it does not add to the taxable estate. The working child inherits the business; the trust pays the others their share; the business is never touched to make the numbers balance.

Because that money lands directly with the beneficiaries, the age of the children matters. If any of them are under eighteen when you die, the money needs to be held for them properly rather than handed over, and our note on what happens when the money lands and the children are under 18 covers how that is managed. If one of the children has a disability and relies on means-tested support, paying a lump sum to them directly can do more harm than good, and the safer route is set out in leaving money to a disabled child without losing their benefits.

If you want to see what such a policy would involve, you can compare life insurance quotes and have an FCA-authorised broker size the cover against the value of the business and the number of children you need to provide for.

Business relief and the tax picture

Families often assume the business will be crippled by inheritance tax on death, and then over-correct by trying to spread it thin. The tax position is usually less alarming than the fairness problem, and worth understanding before you plan around it.

Shares in a genuine trading business often qualify for business relief, which can take a large part of their value out of the inheritance tax charge. That relief is not unlimited. From 6 April 2026, full 100% relief is restricted to a combined allowance of £2.5 million per person for qualifying business and agricultural property, with 50% relief on value above that allowance — an effective inheritance tax rate of up to 20% on the excess, rather than the standard 40%.

Source: HM Treasury and HM Revenue & Customs, Reforms to agricultural property relief and business property relief, GOV.UK.

The practical effect for most family firms is that the business itself may pass with much of its value relieved, so the tax bill is smaller than feared. That is precisely why equalisation is more often a fairness question than a tax question. The reason not to simply divide the shares is not the tax — it is the governance mess an equal split creates. And because a life policy written in trust for the other children pays outside the estate, equalising this way does not add to the taxable value either. If your business is a partnership rather than a company, note that the tax reliefs sit alongside a quite separate problem — the firm can dissolve automatically on a death, as we explain in how the Partnership Act 1890 dissolves the whole firm.

Making the will and the articles agree

A plan to leave the business to one child can be quietly defeated by the company's own rulebook. A will disposes of your shares, but the articles of association and any shareholders agreement govern what can actually be done with them, and the two documents have to be read together.

Many articles contain pre-emption or compulsory-transfer provisions requiring shares to be offered to existing shareholders on death, sometimes at a fixed valuation. If your co-owners are outside the family, those clauses can override what your will says. Even within a family company, the way the agreement is structured — a binding obligation to buy versus reciprocal options — affects whether business relief survives, which is the point of our piece on why options rather than an obligation preserve business relief. Get the will drafted in isolation and you may find it cannot do what you intended.

There is also the delicate matter of the children who are not getting the business. Leaving a child less, or leaving them a different kind of asset, is entirely permissible, but it needs doing with open eyes — a child who feels short-changed can bring a claim against the estate, and the ground rules for that are covered in whether you can leave a child out of your will. Equalising properly, so each child receives a fair total even if not an identical asset, is the best protection against that kind of dispute, because the fairness is real rather than cosmetic.

Scotland and Northern Ireland

The equalisation strategy works across the UK, but Scotland adds a rule you cannot plan around by will alone. Under Scots law, children have legal rights — an automatic entitlement to a share of the deceased's moveable estate, which a will cannot simply override. Company shares are moveable property, so a child left out of the business, or left a smaller share, may still be able to claim their legal rights against the moveable estate, including the value of those shares. That makes proper equalisation, using assets outside the estate such as a policy in trust, even more important in Scotland, because it satisfies the other children without leaving them driven to a legal-rights claim that could reach into the business.

Northern Ireland follows rules closer to those of England and Wales, including its own version of family-provision legislation under which certain family members can apply to the court if reasonable provision has not been made for them. In every part of the UK the safest plan is the same: make the provision for the non-working children real and adequate, fund it from outside the business, and take advice from a solicitor qualified in the jurisdiction where you live before finalising the will. You can read the wider set of business-death questions in our guide to what happens to a business when the owner dies.

Frequently asked questions

How do I leave the business to one child and be fair to the others?

The usual approach is to leave the business to the child who runs it and equalise the others with assets from outside it, such as property, pension death benefits or the proceeds of a policy held in trust. That way each child receives a fair total value even though they receive different things, and the business stays in one piece. Splitting the shares equally between children who work in the firm and children who do not often satisfies nobody, so equalisation from outside the business is usually the fairer answer.

What happens if I just divide the shares equally?

The child running the business ends up answerable to siblings who do not work in it, on decisions about dividends, salaries and reinvestment. Disagreements are common and hard to resolve, and a minority holding in a private company is very difficult to sell to anyone outside the family, so the non-working children are left with a stake they can neither control nor cash in. An equal split intended to keep the peace often creates the very dispute it was meant to avoid.

Does equalising with a policy affect inheritance tax?

A policy written in trust for the other children pays them directly, so it does not pass through the will and does not add to the taxable estate. Because business relief may cover much of the value of the shares, equalising this way can leave the overall position simpler as well as fairer. The detail depends on your circumstances and the current reliefs, so confirm the position with a solicitor or tax adviser before relying on it.