Shareholder & Partnership Agreements.

Yes — a shareholders' or partnership agreement can be changed, but how it can be changed depends on the terms of the agreement itself. Most agreements specify the consent required to vary them — commonly the unanimous agreement of all parties, or in some cases the agreement of a specified majority. Because these agreements are contracts between the parties, they generally cannot be altered without the consent of those whose rights are affected, which protects each owner against unilateral changes. This is one reason it is important to get the agreement right at the outset — while changes are possible, they require agreement, which may be harder to obtain once interests have diverged. Changes may be needed over time as the business grows, new owners join, or circumstances change. A periodic review of the agreement — to check it still reflects the owners' intentions and the current law — is good practice. Any variation should be properly documented and, where it affects the articles of association, the corresponding changes to the articles should be made consistently.

Planning for exit and succession is one of the most important functions of a shareholders' or partnership agreement, and addressing it in advance avoids crisis and dispute later. The agreement can provide for a range of circumstances: a shareholder or partner wishing to retire or sell their interest, including how and to whom it can be transferred and how it is valued; the death of an owner, providing for their interest to pass or be bought out rather than disrupting the business, often linked to life assurance arrangements to fund the buy-out; incapacity, allowing the remaining owners to continue and acquire the affected owner's interest; and the admission of new owners. For partnerships in particular, providing for the business to continue on a partner's departure or death — rather than dissolving automatically under the Partnership Act 1890 default — is essential. Linking the agreement to the owners' wills, and to any cross-option or life assurance arrangements, ensures succession is handled smoothly and tax-efficiently. Coordinated legal advice ensures these provisions work together as intended.

Good leaver and bad leaver provisions govern what happens to the shares of a shareholder — usually one who is also an employee or director — when they leave the business, and in particular what price they receive for their shares. The provisions distinguish between circumstances of departure. A good leaver — for example, someone who leaves due to retirement, ill health, or redundancy — typically receives fair or market value for their shares. A bad leaver — for example, someone dismissed for misconduct, or who leaves in breach of their obligations or to join a competitor — may be required to transfer their shares at a reduced value, sometimes only the amount they paid for them or nominal value. These provisions protect the business and the remaining owners, and they incentivise good conduct and continued commitment. The definitions of good and bad leaver, and the valuation consequences of each, are matters for careful drafting and negotiation. They are particularly common in companies where shares are linked to employment, such as those with management equity or share incentive arrangements.

Drag-along and tag-along rights are complementary provisions that deal with what happens on a sale of the company, protecting majority and minority shareholders respectively. A drag-along right allows the majority shareholders, when they accept an offer for the whole company, to require (drag) the minority shareholders to sell their shares on the same terms — this prevents a minority from blocking a sale that the majority wish to accept, ensuring a buyer can acquire 100 percent of the company. A tag-along right works the other way: it allows the minority shareholders, when the majority sell their shares, to require the buyer to also buy their shares on the same terms (to tag along) — protecting the minority from being left behind as shareholders in a company now controlled by a new owner they did not choose. Together, these provisions balance the interests of majority and minority on an exit. They are standard features of shareholders' agreements and are particularly important where there is a mix of larger and smaller shareholdings.

Pre-emption rights are provisions that give existing shareholders (or partners) the first right to acquire shares (or a partnership interest) before they can be sold or transferred to an outsider. They matter because they protect the existing owners' control over who becomes a co-owner of the business. Without pre-emption rights, a shareholder could sell their shares to a third party — potentially a competitor or someone the other shareholders do not wish to be in business with — without the others having any say. Pre-emption provisions typically require a shareholder wishing to sell to first offer their shares to the existing shareholders, usually pro rata to their existing holdings, at a price determined by the agreement or by an agreed valuation mechanism. Only if the existing shareholders decline can the shares be offered elsewhere. Pre-emption rights are a standard and important feature of shareholders' agreements and articles, and equivalent provisions appear in partnership agreements. They preserve the closely held nature of the business and prevent unwelcome outsiders acquiring an interest.

A well-drafted shareholders' or partnership agreement can include mechanisms designed to resolve disagreements and break deadlock before they escalate into damaging disputes. Common provisions include: an escalation procedure, requiring the parties to refer a disagreement to senior representatives or to mediation before taking any other step; a casting vote given to a chairman on certain matters; reference of particular questions (such as valuation) to an independent expert whose decision binds the parties; and, for deadlock in evenly held companies, buy-out mechanisms such as a 'shotgun' or 'Russian roulette' clause, under which one owner offers to buy out the other (or be bought out) at a stated price, with the other choosing which side of the deal to take. The agreement can also specify that disputes are referred to arbitration rather than court, keeping them confidential. Building these mechanisms in at the outset — when the parties can consider them dispassionately — means that if a serious disagreement does arise, there is an agreed route through it rather than an impasse. This is one of the most valuable functions of a well-drafted agreement.

A partnership agreement is a written contract between the partners in a business that sets out how the partnership will operate and how the partners' relationship will be governed. It is important because, without one, a traditional partnership is governed by the default rules of the Partnership Act 1890 — and those rules often do not reflect what the partners actually intend. For example, under the default rules, profits are shared equally regardless of contribution, and the partnership is dissolved automatically when any partner leaves. A written agreement allows the partners to set their own terms: how profits are divided, how decisions are made, what happens when a partner joins or leaves, and how the business continues if a partner dies or retires. For a business operating as a partnership, a well-drafted agreement is essential protection — it prevents many disputes and provides a clear framework for the ones that do arise. The same applies to limited liability partnerships, which should have an LLP agreement.

A shareholders' agreement is a private contract between the shareholders of a company that governs their relationship and how the company will be run. It sits alongside the company's articles of association and deals with matters the articles do not adequately cover. Most companies with more than one shareholder benefit from one — particularly where the shareholders are also involved in running the business, where there are minority shareholders, or where the shareholders want certainty about how key decisions, share transfers, and exits will be handled. A single-shareholder company does not need one, but as soon as ownership is shared, an agreement provides clarity and protection. It is best put in place when relationships are good and the shareholders can agree calmly on how various situations will be dealt with — rather than after a problem has arisen. A well-drafted agreement is one of the most valuable protections a business with multiple owners can have.

A company has two key governing documents, and understanding the difference is important. The articles of association are the company's public constitution — filed at Companies House and available to anyone — which set out the basic rules for how the company is governed. A shareholders' agreement is a private contract between the shareholders, which is not filed publicly and can therefore deal confidentially with commercially sensitive matters. The two work together: the articles provide the constitutional framework, while the shareholders' agreement supplements them with more detailed and often more protective provisions agreed between the owners. Where there is a conflict between the two, the position can be complex — generally the agreement binds those who are party to it as a matter of contract, but the articles govern the company itself. For this reason, the agreement and the articles should be drafted together to work consistently. Keeping certain provisions private in the agreement, rather than in the public articles, is often a key advantage.

A comprehensive partnership or LLP agreement should address the key aspects of the partners' or members' relationship and the running of the business. Typical provisions include: the capital each partner contributes and how capital is dealt with; how profits and losses are shared, reflecting the partners' actual arrangement rather than the equal-sharing default; how decisions are made, and which decisions require unanimity; the roles, responsibilities, and time commitment of each partner; drawings and remuneration; how new partners are admitted; what happens when a partner retires, leaves, dies, or becomes incapacitated, and how their share is valued and paid out; whether and how a partner can be expelled; restrictions on competing with the partnership; and how the business and any goodwill are to be valued. For an LLP, the agreement also deals with members' rights and duties and the matters that the default statutory provisions leave open. Tailoring the agreement to the specific business and the partners' intentions is what gives it its value.

A well-drafted shareholders' agreement is tailored to the company and its owners, but typically covers: how decisions are made, including which important decisions require unanimous or special consent (reserved matters); the composition of the board and how directors are appointed and removed; dividend policy and how profits are dealt with; restrictions on transferring shares, including pre-emption rights giving existing shareholders first refusal; drag-along and tag-along rights protecting majority and minority shareholders on a sale; what happens when a shareholder leaves, including good leaver and bad leaver provisions; how the shares are to be valued on a transfer or exit; provisions for resolving deadlock and disputes; protections for minority shareholders; restrictions on shareholders competing with the company; and how the agreement itself can be varied. The precise contents depend on the number of shareholders, the nature of the business, and the balance the parties wish to strike. The value of the agreement lies in addressing these matters clearly in advance.

The best time to put a shareholders' or partnership agreement in place is at the outset — when the business is being set up or when people first come together as co-owners. At that stage, relationships are positive, interests are aligned, and the parties can discuss calmly and agree fairly how various situations will be handled, before any of them know which way a particular provision might cut. Once a business is running and especially once a disagreement has arisen, reaching agreement becomes far harder, because each party can see where their interests lie. That said, it is never too late to put an agreement in place, and businesses that have operated without one for years often benefit greatly from finally doing so — particularly before significant events such as taking on a new shareholder, a change in the business, or planning for succession. If your business has multiple owners and no agreement, putting one in place should be a priority. The modest cost of a well-drafted agreement is small compared to the cost of the disputes it can prevent.