When you go into business with someone else, you need to agree on more than just how the company will operate day to day. You also need to consider what happens if you disagree on an important decision, a shareholder wants to leave, or circumstances change unexpectedly. Without the right legal protections in place, these situations can affect how your company is run, who owns its shares and even its future direction.

A shareholders’ agreement helps establish clear rules for managing the company and protecting the interests of its shareholders. It can cover everything from decision-making and share transfers to resolving disputes, giving everyone a clearer understanding of their rights and responsibilities. It is also important to review the company’s articles of association alongside the agreement to ensure the two work together.

Our Business Team has put together this guide, alongside an explainer animation, to explain what a shareholders’ agreement should cover and why having the right arrangements in place matters.

What can happen without a Shareholders’ Agreement?

You and your co-founders agree on everything today. But businesses change, people change, and life happens. Without the right documents in place, here is what can go wrong:

• Deadlock. Two equal shareholders cannot agree, and the company grinds to a halt — no decisions, no direction, no way out.
• A stranger at the table. A fellow shareholder sells their shares to an outsider. You are now in business with someone you did not choose, do not know, and may not trust.
• Shares passing on death. A shareholder dies and their shares pass under their Will to a family member with no interest in or knowledge of the business — who could, depending on the size of the holding make decisions which are detrimental to the company and the other shareholders, appoint directors or remove existing ones or stand in the way of the company progressing as the other shareholders wish.
• A competitor walks out of your door. A departing shareholder sets up a rival business, taking your key staff and your customer list with them.
• Minority shareholders left exposed. Without agreed protections, a smaller shareholder can be outvoted on decisions that fundamentally affect their investment.

If things go wrong without an agreement, your main fallback is an unfair prejudice claim under the Companies Act 2006 — a route that is slow, stressful and extremely expensive. Prevention costs a fraction of the cure.

With animation studio Pushed, we have created the explainer animation below to help you understand further what shareholders’ agreements are and why they matter.

Are Articles of Association enough to protect shareholders?

Probably not. Many business owners assume their articles of association (the company’s rulebook, filed at Companies House) already protect them. Standard-form articles rarely do. Your articles and shareholders’ agreement need to be drafted together, so they work as one — with no gaps and no contradictions.

What should a Shareholders’ Agreement and Articles of Association cover?

A well-drafted shareholders’ agreement, backed by tailored articles, puts the rules in place before you need them. Key protections include:

• Reserved matters: major decisions — such as taking on debt, large capital spending, senior hires or key contracts — need the agreement of all or a set majority of shareholders, so no one can act alone.
• Pre-emption rights: existing shareholders get first refusal before shares are sold or issued to anyone else, keeping ownership in trusted hands.
• Drag-along rights: if a majority wants to accept a good offer for the whole company, they can require the minority to sell on the same terms, so a sale cannot be blocked.
• Tag-along rights: if the majority sells, minority shareholders can insist on selling their shares on the same terms, so no one is left behind or disadvantaged.
• Deadlock and dispute mechanisms: a clear, pre-agreed route out of stalemate, rather than a costly court battle.
• Exit and transfer rules: what happens to shares if a shareholder leaves, falls ill, becomes bankrupt or dies — including a fair way to value and buy them back.
• Restrictive covenants: stopping a departing shareholder from competing or poaching your staff and customers for an agreed period.
• Dividend policy: clarity on when and how profits are paid out, avoiding a common flashpoint.

We can also work with your accountants and discuss whether a cross option agreement is appropriate to deal with the shares of a deceased shareholder. It is usually a more tax-advantageous way of dealing with such shares, rather than having automatic transfer provisions on death in the shareholders’ agreement and/or the articles of association. This is backed by shareholder protection insurance, so that if the worst happens, the funds are there to buy back a deceased shareholder’s shares. See our article on cross option agreements here.

Put the right protections in place now

Whether you are launching a start-up, bringing in a new investor, or have been trading for years on documents you have never looked at since, now is the time to act. At Kitson Boyce, our Business Team prepares and reviews shareholders’ agreements alongside your articles of association, so your business and your stake in it are protected.

Talk to us today. Contact Corri Pedrick, Head of our Business Team, on 01803 202043 or at [email protected].