Share Buyback Agreement Templates

A share buyback is a transaction whereby a private limited company acquires its own shares from an existing shareholder. This may be done for a variety of reasons – most commonly to facilitate the exit of a shareholder who is no longer actively involved in the business, such as a founder or investor. Upon completion, the repurchased shares are typically cancelled, thereby increasing the relative shareholdings of the remaining members.

A buyback may also be used to streamline the company’s capital structure, return surplus capital to shareholders or implement changes following an investment, reorganisation or dispute. However, any buyback must be effected strictly in accordance with the provisions of the Companies Act 2006. Failure to comply with the statutory requirements may render the transaction void.

Learn more about share buybacks and how they work.

The Companies Act 2006 permits a company to finance the purchase of its own shares using one of the following methods:

• out of the company’s distributable profits
• out of the company’s share capital, subject to additional solvency, public notice, and filing requirements 
• from of the proceeds of a fresh issue of shares made for the purpose of the buyback

Due to the additional legal requirements for financing a buyback from capital, on practice the most commonly used and straightforward method is a buyback out of distributable profits.

Prior to effecting a buyback, the company must ensure that:

• • the company’s Articles of Association do not prohibit the buyback
  • the company has sufficient distributable profits
  • the buyback is documented in a buyback agreement between the company and the selling shareholder 
  • the terms of the buyback agreement are approved by ordinary resolution of shareholders, in accordance with section 694 of the Companies Act 2006

• all relevant documentation is prepared and executed, and post-completion Companies House filings are submitted within the required timeframes

A compliant buyback out of distributable profits requires the following core documents:

• share buyback agreement – a written agreement between the company and the selling shareholder setting out the terms of the purchase, including the class and number of shares to be acquired, the consideration payable and the completion arrangements
• shareholder approval – an ordinary resolution of the shareholders approving the terms of the buyback agreement in accordance with section 694 of the Companies Act 2006. This may be passed either at a general meeting or by written resolution
• board resolutions – resolutions of the board approving the terms of the buyback agreement, confirming that the company has sufficient distributable profits and authorising execution of the agreement and completion of the share buyback

In addition to the above, following completion, the company must:

• pay any necessary stamp duty to HMRC
• file forms SH03 and SH06 at Companies House
• update the register of members to reflect the cancellation of the repurchased shares

The Companies Act 2006 provides for a limited exemption – often referred to as the de minimis exemption – which permits a private limited company to buy back shares out of capital without complying with the full requirements for a buyback out of capital.  This exemption is available if the following conditions are met:

• the total amount of the payment for the buyback in any financial year does not exceed the lower of £15,000 or 5% of the company’s paid-up share capital
• the buyback is authorised by an ordinary resolution of the shareholders
• the company’s articles of association authorise the use of this exemption

This exemption is most commonly used to facilitate the repurchase of small shareholdings or to deal with administrative tidy-ups. While the procedural requirements are lighter, the company must still comply with the relevant documentation and filing obligations to ensure the buyback is valid and properly recorded.

Where a company buys back its own shares for consideration exceeding £1,000, stamp duty at a rate of 0.5% is generally payable on the transaction. The duty is assessed on the consideration stated in the Companies House form SH03, which is the stampable instrument in the context of a share buyback – not the stock transfer form.

The company must submit the SH03 to HMRC for stamping and pay the stamp duty within 30 days of the date of the share buyback.  Once stamped, the SH03 can then be filed at Companies House.

Failure to pay stamp duty on time may result in penalties and interest, and may delay the company’s ability to complete its statutory filings. 

Timing of consideration – payment must be made on completion.

The Companies Act requires that full payment for the shares must be made at the time of the buyback. Deferred consideration, or payment by instalments, is not permitted and would invalidate the transaction.

Where it is intended that shares be paid for in stages, this must be structured as a series of separate buybacks, each properly documented and completed in accordance with the statutory requirements, with full payment made at each stage.

Yes, a share buyback will usually reduce a company’s equity – but not always.

If the shares bought back are cancelled, the company’s issued share capital is reduced. This permanently decreases the number of shares in issue and typically reduces the company’s equity.

Cancelling shares also increases the proportionate shareholdings of the remaining shareholders. This can have a direct impact on future decision-making, particularly if a shareholder’s holding crosses a key threshold – such as 25%, 50% or 75% – which may carry additional voting rights or control under the Companies Act 2006 or the company’s articles.

Alternatively, where permitted (and specified in the share buyback contract which constitutes the sale and purchase agreement), a company may hold repurchased shares in treasury. Treasury shares are not cancelled and can be reissued in the future. In this case, the impact on equity and shareholder proportions is deferred until those shares are either reissued or cancelled.

A share buyback can affect shareholders in several ways.

Shareholders who do not sell their shares may see a proportionate increase in their ownership, assuming the repurchased shares are cancelled. This can enhance their entitlement to dividends and strengthen their voting rights.

In some cases, this change may push a shareholder across an important control threshold – for example 25%, 50% or 75% – giving them greater influence over company decisions, such as passing special resolutions or amending the articles of association.

At the same time, a buyback reduces the company’s available reserves or capital, depending on how it is funded. This may limit the company’s ability to pay future dividends, reinvest in the business, or meet other financial obligations.

Yes, a share buyback can have tax consequences for the selling shareholder.

In most cases, the purchase price received is treated as income and taxed as a distribution. However, capital gains tax treatment may be available if certain conditions are met.

To qualify for capital treatment, the shareholder must usually meet requirements including a substantial reduction in their shareholding, a minimum period of ownership, and other conditions set out in the tax legislation. The tax outcome will depend on the shareholder’s individual circumstances.

In addition, stamp duty is normally payable by the company on the buyback at a rate of 0.5% of the purchase price.

We recommend taking independent tax advice before proceeding with a share buyback.