Business

Do I Need a Shareholders Agreement for My Small Business?

March 2026  ·  Kent Online Legal Document Service  ·  England and Wales only

If you own a business with one or more other people, a shareholders agreement is one of the most important documents you can have — yet many small business owners never put one in place. This guide explains what a shareholders agreement does, what happens if you trade without one, and why getting one right from the start can save you significant problems later.

What is a Shareholders Agreement?

A shareholders agreement is a private contract between the shareholders of a company that governs how the company is run and how the shareholders deal with each other. Unlike a company's articles of association — which are filed at Companies House and are publicly available — a shareholders agreement is confidential.

A shareholders agreement works alongside the articles of association. Where they conflict, the articles generally prevail, so it is important to ensure the two documents are consistent. A good shareholders agreement addresses all the important issues that the standard model articles do not deal with adequately for most small businesses.

What Does a Shareholders Agreement Cover?

A comprehensive shareholders agreement for a small business typically covers:

What Happens if You Trade Without One?

Without a shareholders agreement, your company is governed solely by its articles of association — usually the standard model articles from Companies House — and by company law. The model articles are entirely adequate for a company with a single director-shareholder, but they leave many important questions unanswered for a company with multiple shareholders.

Common problems that arise without a shareholders agreement include:

Resolving any of these disputes without an agreement in place is expensive, time-consuming and often damaging to the business. An agreement negotiated in goodwill at the outset — before any dispute has arisen — is far preferable to trying to negotiate a solution once relationships have broken down.

When is the Best Time to Put One in Place?

The best time to put a shareholders agreement in place is when you start a business with other people, before any investment has been made, any significant value has been created, or any disputes have arisen. At that point everyone is optimistic, relationships are good and negotiating the agreement is a straightforward commercial conversation.

The second best time is right now, even if you have been trading for some time without one. Better late than never — and the cost of preparing a shareholders agreement is very small compared to the cost of a shareholder dispute.

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Important notice: This article is for general information only. It does not constitute legal, tax or financial advice. Kent Online Legal Document Service is a document preparation service. We are not a law firm and are not regulated by the Solicitors Regulation Authority. Always seek independent legal and financial advice before making decisions about your estate or documents.