Bonus Issues in the UK: How They Work and What Companies Should Consider

A bonus issue can look simple on paper: a company gives existing shareholders extra shares for free, usually in proportion to what they already hold. But founders and directors often get caught by three practical mistakes. They assume a bonus issue brings cash into the business, they overlook what the company’s articles or shareholders’ agreement say, or they treat it like a casual admin task without checking whether the board has authority and whether company filings need updating.

That matters because a bonus issue changes the company’s share capital, affects the cap table, and can create confusion with investors, employee shareholders and future fundraising if it is not handled properly. If you are considering issuing bonus shares in the UK, the real questions are usually less about the headline idea and more about the detail: when can you do it, what reserves can be used, what approvals are needed, and what documents should be updated before you sign anything or announce the change?

This guide explains how a bonus issue works in the UK, when companies use one, the legal and practical steps involved, and the common mistakes that can turn a straightforward share restructuring into a bigger governance problem.

Overview

A bonus issue increases the number of shares held by existing shareholders without those shareholders paying for the new shares. The company usually capitalises available reserves and converts them into share capital, so ownership percentages often stay the same even though the total number of shares goes up.

For most UK private companies, the key work is checking authority, following the company’s constitutional documents, recording the allotment properly and making sure the share records match what has actually been approved.

• Check the articles of association for any restrictions, special rights attached to share classes, or procedures for allotting shares.
• Review any shareholders’ agreement for consent rights, anti-dilution wording, investor protections or reserved matters.
• Confirm whether the company has enough distributable or capitalisable reserves for the proposed issue.
• Make sure the board and, if required, shareholders approve the bonus issue in the right way.
• Consider whether pre-emption rights apply or have been disapplied.
• Update the cap table, register of members, share certificates and any internal equity records.
• Check whether Companies House filings are required, including the relevant return of allotment.
• Think about the wider commercial effect, especially before fundraising, an employee share plan, a sale process or bringing in new investors.

What Bonus Issue Means For UK Businesses

A bonus issue is not a fundraising tool. It is a way of converting company reserves into share capital and issuing additional shares to existing shareholders, usually pro rata to their current holdings.

In plain English, shareholders receive more shares, but they are not paying new money into the company. If everyone receives the same proportionate uplift, no one’s economic percentage changes. The company has simply split the equity into a larger number of shares.

What a bonus issue usually looks like

A common example is a 1 for 1 bonus issue. If a founder holds 100 ordinary shares, they receive another 100 ordinary shares, ending up with 200. If every shareholder receives the same treatment, each person still owns the same percentage of the company as before.

This is why founders sometimes compare a bonus issue with a stock split. They are not identical concepts in every legal or accounting sense, but commercially they can produce a similar result: more shares on issue without changing overall ownership proportions.

Why companies use bonus shares

UK companies use bonus issues for a few practical reasons. Sometimes the company wants to increase the number of shares in issue before an investment round so the nominal share price or share count is easier to work with. Sometimes the aim is to tidy up the capital structure, particularly where the company started with a very small number of shares. In some cases, the company wants to align the share capital position with retained earnings or other reserves.

Founders also use bonus issues when they want the share structure to feel more workable for future option pools, investor allocations or partial transfers. A cap table with only a handful of shares can become awkward when you later need to issue small percentages.

How this differs from other share transactions

A bonus issue is different from issuing new shares for cash. In a standard allotment for cash, the company receives payment from the subscriber. In a bonus issue, it does not.

It is also different from a transfer of shares. A transfer moves existing shares from one holder to another. A bonus issue creates additional shares and allocates them to existing holders.

It can also differ from a rights issue. A rights issue usually gives existing shareholders the right to buy additional shares, often to raise funds. A bonus issue gives additional shares without payment.

What the law and documents usually matter most

The Companies Act 2006 provides the framework for share allotments, shareholder rights and company records, but the company’s own documents often drive the practical answer. This is where founders often get caught. They focus on the Companies Act and forget that the articles of association and shareholders’ agreement may add extra approval requirements.

Key documents and issues often include:

• the articles of association, especially any limits on director authority or class rights
• a shareholders’ agreement, including reserved matters and investor consent rights
• existing share class terms, if the company has ordinary shares, preference shares or growth shares
• board minutes and shareholder resolutions
• the company’s latest accounts and reserve position
• share registers, certificates and the cap table

Another practical point is timing. If you are about to raise investment, grant EMI options, restructure the group or negotiate a sale, a bonus issue should be planned carefully. A rushed issue just before due diligence can create discrepancies between what the company says its share capital is and what its paperwork actually proves.

When This Issue Comes Up

A bonus issue usually comes up when a company wants to reorganise its share capital without changing who owns the business in percentage terms. The trigger is often commercial, not legal.

Before a fundraising round

Investors often want a clear and workable cap table. If the company has only 10 issued shares split between several founders, future allocations can become clumsy. A bonus issue can increase the share count so new investment, option pools and future transfers can be expressed in cleaner numbers.

Before you sign a term sheet, it is worth checking whether the proposed investment documents expect a particular pre-money share count. If a bonus issue happens at the wrong stage, it can create confusion over valuation mechanics and investor ownership percentages.

Before launching an employee share plan

Employee incentives often work better when the company has a larger number of shares on issue. If you are setting aside equity for key staff, a bonus issue can make the structure easier to manage.

That said, founders should be careful not to assume a bonus issue solves the legal work around employee equity. Option terms, scheme rules, employment contracts and leaver provisions still need proper treatment.

When cleaning up an early-stage share structure

Many startups are incorporated quickly with a basic share structure. A year or two later, the founders may realise the company has a very low number of issued shares, inconsistent share certificates, or old records that do not reflect what everyone thought had happened.

A bonus issue is sometimes part of a wider tidy-up. If that is the case, do not treat it as a standalone step. It should sit alongside a full review of allotments, transfers, filings and constitutional documents.

Before a sale or due diligence exercise

Buyers and investors look closely at share capital. If there is a mismatch between the cap table, Companies House filings, internal registers and shareholder communications, the main risk is delay, extra legal cost and confidence dropping during due diligence.

If a bonus issue is being considered ahead of a transaction, the company should first confirm that the existing share position is accurate. It is usually easier to fix errors before introducing another change.

As part of a broader restructuring

Established SMEs sometimes use bonus shares as part of a reorganisation, for example where the company wants to capitalise profits, alter the nominal position of its shares, or align the capital structure across a group. In those cases, the accounting and legal treatment should be considered together.

This is also where businesses should be careful not to drift into tax assumptions. A bonus issue may have accounting and tax consequences depending on the facts, and those questions usually need separate specialist input.

Practical Steps And Common Mistakes

The safest approach is to treat a bonus issue as a formal share capital event, not a paperwork shortcut. If the approvals, records and filings are not lined up properly, the issue can create uncertainty about who owns what.

1. Check whether the company can actually do it

Start with the company’s latest constitutional and shareholder documents. You need to know whether directors have authority to allot the shares, whether shareholders must approve the issue, and whether there are restrictions linked to any share class.

Check documents such as:

• the articles of association
• any shareholders’ agreement
• subscription agreements or investor rights documents
• existing resolutions affecting allotment authority or pre-emption rights
• share class terms and any side letters

Private companies with only one class of shares may have more straightforward authority rules, but do not assume that is enough. Investor documents often add their own consent requirements.

2. Confirm the reserve position

A bonus issue is commonly funded by capitalising available reserves. That means the company should understand what reserves it has and whether they are appropriate for the purpose.

Founders sometimes gloss over this because no cash is changing hands. But the accounting basis still matters. Before you spend money on company setup for a wider restructuring, make sure the finance position supports what the company plans to do.

3. Decide exactly what is being issued

The company should be precise about the terms of the new shares. Are they ordinary shares identical to the existing ordinary shares, or is the company proposing a different class? What is the ratio, and which shareholders are entitled?

If the issue is not strictly pro rata, the analysis becomes more sensitive. Different treatment between shareholders can raise fairness concerns, class rights issues and disputes about whether pre-emption or consent rights are triggered.

4. Prepare the approvals properly

The company will usually need board minutes, and may also need an ordinary or special resolution from shareholders depending on the company’s documents and the legal mechanics being used.

The paperwork should clearly record:

• why the company is making the bonus issue
• the reserve amount being capitalised, if applicable
• the share class and number of shares to be allotted
• the persons entitled to receive the shares
• the effective date
• authority for any officers to update registers, issue certificates and make filings

This is one of the easiest places for admin errors to creep in. A company may have a board email discussing the plan, but no properly signed resolution. Later, that can cause problems in due diligence or contract review.

5. Update statutory registers and share documents

Once the bonus issue is approved, the company should update the register of members and any register of allotments or other internal records it keeps. New share certificates may also need to be issued within the relevant time period.

If the cap table is used in management reports, option documents or investor updates, those should all be aligned. Businesses often remember the Companies House filing and forget the internal records, or the other way around.

6. File what needs to be filed

Many bonus issues require a return of allotment to be filed at Companies House. The details need to match the approvals and internal registers. If the filing is inconsistent, it can create a long tail of confusion.

Companies should also consider whether the confirmation statement, PSC analysis or other records are affected. A straightforward pro rata bonus issue may not change who has significant control, but it is still worth checking rather than assuming.

7. Think about the knock-on effect on future documents

After a bonus issue, template subscription letters, founder transfer documents, drag and tag wording, option grants and investor schedules may all need updating to reflect the new share numbers.

This matters especially if you are selling online to investors through a platform, preparing a data room, or circulating draft investment documents. Old numbers tend to survive in email chains and attachments long after the cap table has changed.

Common mistakes founders make

The most common mistake is assuming a bonus issue is purely cosmetic. It may be simple in concept, but it still changes the share capital of the company.

Other frequent mistakes include:

• forgetting to check the articles or shareholders’ agreement
• issuing the wrong class of shares or using unclear terms
• treating a bonus issue as if it raises new capital
• failing to keep accounting support for the reserve capitalisation
• missing or delaying Companies House filings
• not updating the register of members and share certificates
• creating inconsistencies across the cap table, investor decks and legal documents
• making changes just before fundraising without checking the transaction documents

A practical founder example

Imagine a tech startup incorporated with 10 ordinary shares, 6 held by one founder and 4 by the other. The business is preparing for a seed round and wants to create a more usable share structure before issuing options and investment shares. The board proposes a 100 for 1 bonus issue so the founders end up with 600 and 400 shares respectively.

That can work, but only if the company checks its articles, records the authority to allot, confirms the reserve basis, approves the issue formally, updates the register of members and files the allotment correctly. If one of those steps is missed, the founders may discover the problem only when investors ask for proof of the issued share capital.

FAQs

Does a bonus issue change ownership percentages?

Usually not, if all eligible shareholders receive shares in the same proportion as their existing holdings. It changes the number of shares each person holds, but not normally their percentage ownership.

Does a bonus issue bring cash into the company?

No. A bonus issue does not usually raise new money. It is generally a capitalisation of reserves and an issue of shares to existing shareholders without payment.

Do directors need shareholder approval for a bonus issue?

Sometimes yes, sometimes no. The answer depends on the company’s articles, any shareholders’ agreement, existing allotment authority and whether special rights or restrictions apply.

Do UK companies need to file anything at Companies House after a bonus issue?

Often yes. A return of allotment is commonly required, and the company should also make sure its statutory registers and future confirmation statement details are accurate.

Is a bonus issue the same as a share split?

Not exactly. They are different mechanisms, although they can have a similar commercial effect because both can increase the number of shares on issue without changing overall ownership proportions.

Key Takeaways

• A bonus issue gives existing shareholders additional shares without them paying for those new shares.
• It does not usually raise capital for the company, so founders should not treat it like a funding step.
• The company’s articles, shareholders’ agreement and existing share rights are often just as important as the Companies Act rules.
• Board approvals, shareholder resolutions, reserve analysis, statutory register updates and Companies House filings all need to line up.
• Bonus issues often come up before fundraising, employee equity plans, restructures and due diligence exercises.
• The biggest practical risk is inconsistency between the approved transaction, the cap table and the company’s formal records.

If your business is dealing with a bonus issue and wants help with share allotment approvals, articles and shareholders’ agreement checks, cap table and register updates, Companies House filings, you can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.