Share Structure When Setting Up a UK Limited Company — What to Get Right From the Start

The share structure you choose when registering a limited company determines who owns the business, how profits are distributed, and how tax-efficiently you can extract income. Getting this right at the start avoids expensive restructuring later.

The Basics — Share Capital and Nominal Value

Most small UK limited companies are set up with 100 shares at £1 each, giving a total share capital of £100. The nominal value (£1 per share) is largely administrative — it does not reflect the market value of the company. The important number is the percentage of shares each person holds.

You can issue fewer shares (even just one) or more, but 100 is a clean number that makes ownership percentages easy to express and adjust over time.

Single Shareholder vs Multiple Shareholders

If you are the only owner, you hold 100% of the shares. If you have a business partner or spouse involved, the shares are split between you.

The split matters because:

Dividends are paid in proportion to shareholding. If you hold 60% and your spouse holds 40%, dividends are paid 60/40.
Voting rights are usually attached to shares, so the split also determines who controls major company decisions.
Tax efficiency — if your spouse is in a lower income tax band, allocating some shares to them allows a portion of dividends to be extracted at the lower rate.

A and B Share Classes

Rather than issuing all shares as a single class, many companies issue different classes of shares — commonly A shares and B shares — with one class allocated to each shareholder.

This gives flexibility. With a single share class, dividends must be paid at a fixed rate per share, meaning the split is fixed at the shareholding proportion. With separate share classes, you can declare a dividend on A shares without declaring one on B shares in the same period — allowing you to vary the amount each shareholder receives depending on their tax position in any given year.

For a husband and wife or business partners where income varies, this flexibility can be valuable. It is sometimes called a alphabet share structure or flexible dividend arrangement. Combined with tax-efficient income planning, it can make a significant difference to your overall tax position.

What to Consider Before Deciding

Before fixing the share structure, consider:

Who is genuinely involved in the business — HMRC's settlements legislation (S624 ITTOIA 2005) can challenge arrangements where shares are gifted to a spouse primarily to redirect income, with no real commercial justification for their involvement
Whether you might want to bring in investors or employees in future — the structure should accommodate this without requiring a complete overhaul
Dividend flexibility now vs simplicity — a single class is simpler to administer; multiple classes give more planning options

Frequently Asked Questions

Q: Can I change the share structure after the company is registered? A: Yes, but it is more complex than getting it right from the start. Adding a new share class requires amending the articles of association and filing with Companies House. Transferring existing shares may also have stamp duty and capital gains tax implications. Setting up the right structure at incorporation is significantly easier.

Q: Does my spouse need to be a director to hold shares? A: No. A shareholder and a director are different roles. Your spouse can hold shares and receive dividends without being involved in the day-to-day running of the company or being appointed as a director.

Q: What happens to shares if a shareholder wants to leave? A: The articles of association and any separate shareholders' agreement govern this. If you are setting up with a business partner, a shareholders' agreement is strongly advisable — it sets out what happens if one party wants to exit, becomes incapacitated, or the relationship breaks down.

Need help deciding on the right share structure? Contact Liberate Accountants for a free consultation, or learn more about our company registration service.