Is Share Capital An Internal Or External Source Of Finance?

If you’re planning to fund your company’s growth, you’ve probably asked: is share capital an internal or external source of finance?

It’s a great question - and getting it right helps you choose the best way to finance your business, manage control, and stay compliant with UK company law.

In this guide, we’ll break down what share capital actually is, whether it counts as “internal” or “external” finance, when it makes sense to issue new shares, and the exact legal steps you’ll need to follow under the Companies Act 2006. We’ll also cover practical alternatives you can consider before (or alongside) issuing shares.

What Is Share Capital And How Does It Work?

Share capital is the money a company raises by issuing shares to its owners (shareholders). In return for their investment, shareholders get rights set out in your company’s constitution and the Companies Act 2006 - for example, voting rights, dividend rights and rights to capital on a winding up, depending on the class of share.

In accounting terms, share capital sits in the equity section of your balance sheet. It’s different from revenue or profit: it’s funding contributed by owners, not income generated from sales.

When you “issue” (or “allot”) new shares, the company receives cash or non-cash consideration (e.g. assets or services, subject to strict valuation and legal rules). The issued shares increase the company’s equity and, usually, dilute existing shareholders unless they also take up new shares pro rata.

The main features to keep in mind are:

• Share capital is permanent risk capital - unlike a bank loan, it typically doesn’t have to be repaid.
• Shareholders are not creditors. They own the company and carry residual risk after creditors are paid.
• Your company can issue different classes of shares with different rights, such as ordinary, preference, non-voting or redeemable shares.

If you’re choosing how to structure rights between different founders or investors, it’s worth understanding Class A vs Class B shares and how those rights translate into decision-making and dividends long-term.

So, Is Share Capital Internal Or External Finance?

Short answer: for a company, share capital is generally treated as an external source of finance - because it’s money brought in from owners and investors outside the company’s operations (as opposed to cash generated by trading).

That said, it’s also equity within the business. From a financial management perspective, think of it like this:

• Internal finance = funds generated by the business itself (e.g. retained profits, working capital optimisation, asset sales).
• External finance = funds injected by third parties, which includes equity (share capital) and debt (loans, overdrafts, asset finance).

On that basis, new share capital is an external source - even if the investors are existing shareholders. It’s capital the company raises from its owners, not cash the business earns through trade.

Why does this distinction matter? Mainly because external finance (equity or debt) tends to come with terms and obligations that affect control, returns, and compliance. Equity dilutes ownership and may introduce investor consents; debt adds repayment and interest obligations. Understanding the trade-offs helps you choose the right funding tool for your stage and strategy.

What Types Of Share Capital Can UK Companies Issue?

Private companies limited by shares have flexibility to issue different classes, provided your Articles of Association allow it and you follow the Companies Act 2006. Common options include:

Ordinary Shares

These are the most common. Ordinary shares typically carry voting rights and entitlement to dividends (if declared) and a share of capital on exit. Founders often hold ordinary shares.

Preference Shares

Preference shares usually carry preferential rights to dividends and/or capital on winding up, sometimes at a fixed rate, and may be non-voting. They can be cumulative (missed dividends accrue) or non-cumulative. If you’re exploring investor-friendly structures, read up on cumulative preference shares and other variants.

Redeemable Shares

Redeemable shares can be bought back by the company at a future date or on certain events, subject to legal capital maintenance rules. These can be useful for structured exits or employee schemes in specific cases.

Non-Voting Or Limited-Voting Shares

These allow you to raise capital without shifting control, by limiting voting rights but offering economic participation (dividends/exit proceeds).

Share Premium And Pricing

If you issue shares at a price above their nominal value, the excess goes to a share premium account, which has its own legal rules. Knowing how the share premium rules work is important for accurate accounting and compliance.

When Should A Small Company Raise External Share Capital?

Issuing shares can be a powerful way to scale, but it’s not the only option. It’s most useful when:

• You need significant capital to build product, hire, or expand, and you don’t want debt repayments weighing on cash flow.
• You want strategic investors who bring expertise, networks, or credibility alongside money.
• Your business model has high growth potential but is pre-profit or volatile, making fixed repayments risky.

But there are trade-offs to weigh carefully:

• Ownership dilution: every new issue usually reduces existing shareholders’ percentage (unless they invest pro rata). Understand share dilution and how to mitigate it with rights like pre-emption or anti-dilution (where appropriate).
• Control and decision-making: investors may require board seats, vetoes or reserved matters via a Shareholders Agreement.
• Time and costs: fundraising takes management time, legal fees, and can require robust financial forecasts and due diligence.

If your capital need is modest or short-term, consider whether debt (or internal efficiencies) might be a better fit. Equity is best used when you want patient capital aligned with long-term growth.

Legal Steps To Issue Shares In The UK

Raising equity isn’t just about price and pitch. There’s a clear legal process under the Companies Act 2006. In outline:

1) Check Authority To Allot And Pre-Emption Rights

Directors need authority to allot (issue) shares. This can be set out in your Articles or granted by an ordinary resolution of shareholders. You must also deal with statutory pre-emption rights (which give existing shareholders a right of first refusal on new issues for cash) unless they’re disapplied by a special resolution or disapplied in the Articles for the relevant allotment.

Make sure you’re using the right approval threshold - see the difference between an ordinary and a special vote in ordinary vs special resolutions.

2) Prepare Your Investment Documents

For most private raises, you’ll want a clear set of documents that capture the deal terms and protect the company:

• Share Subscription Agreement (SSA): sets the number of shares, price, warranties, conditions and completion mechanics.
• Shareholders Agreement: governs decision-making, transfers, pre-emption, investor rights, and dispute processes.
• Updated or bespoke Articles of Association: to embed share class rights, drag/tag, and any bespoke rules.

If you’re issuing different classes, check that your Articles authorise them and that the rights are clearly drafted. Poorly drafted rights are a common cause of disputes down the track.

3) Allotment, Completion And Filings

Once approvals are in place and documents are signed, you’ll complete the allotment and update your records:

• Board minutes resolving to allot shares and issue share certificates.
• Update the register of members and any cap table.
• File Form SH01 at Companies House within one month of allotment.
• Update your Persons with Significant Control (PSC) register if control thresholds are crossed.
• Reflect changes in your next Confirmation Statement.

Note: issuing new shares is typically not subject to stamp duty; however, transfers of existing shares (secondary sales) generally are, which is a different process from a company raising fresh capital.

4) Price, Valuation And Share Premium

Set a defensible price per share, especially if offering an employee option scheme, seeking SEIS/EIS in the future, or if you’re issuing preference shares. Where shares are issued at a premium, ensure the premium is booked correctly in the share premium account and used only in permitted ways under the share premium rules.

5) Consider Employee Equity

If you plan to incentivise key hires, think ahead about how founder and employee equity will work together. Staggered vesting, leaver provisions and option schemes can be addressed in your constitutional docs and cap table strategy. Our guide on how to allocate shares in a startup is a helpful primer when planning early-stage ownership.

Internal Sources Of Finance To Consider Before Or Alongside New Shares

Just because share capital is external finance doesn’t mean it’s the right first move. You can often unlock capital internally or through non-dilutive routes:

Retained Profits

Reinvesting profits is the classic internal funding route. It avoids dilution and external oversight but may not be fast enough if your growth plan is time-sensitive.

Working Capital Optimisation

Small improvements to cash conversion can free up significant cash: tighter debtor days, supplier terms, inventory turns, and pricing/margin reviews.

Asset Sales Or Leasing

Dispose of underused assets or shift to leasing to reduce upfront cash needs.

Director Or Shareholder Loans

Shareholders or directors can lend money to the company on commercial terms. Be sure to document the arrangement and think carefully about subordination and interest. This primer on shareholder and director loans covers the key legal points.

If you go down the debt route, it’s crucial to put a proper Loan Agreement in place - our comparison of the difference between a promissory note and a loan agreement explains why formality matters for enforceability and clarity.

Pros And Cons Of Funding Through Share Capital

Advantages

• No mandatory repayments, improving runway and cash flow.
• Aligned, long-term capital - investors share risk and upside.
• Can bring strategic expertise and networks to accelerate growth.

Disadvantages

• Dilution of ownership and potentially control.
• Longer, more complex process versus simple debt.
• Expectations of governance, reporting and exit in the medium term.

There’s no one-size-fits-all answer. Often a blended approach (internal efficiencies + a modest debt line + a targeted equity raise) gives you flexibility without over-diluting too early.

Governance: Keep Control And Clarity As You Grow

Once you have multiple shareholders, strong governance becomes essential. Two documents tend to do the heavy lifting:

• Shareholders Agreement - sets out how decisions are made, when consent is needed, how new shares are issued, and what happens on exits or disputes.
• Articles of Association - the company’s constitution that deals with share rights, board processes and internal rules.

Together, they reduce the chance of stalemates, protect minority and majority interests, and ensure fundraising can proceed smoothly when opportunities arise.

FAQs: Practical Points Business Owners Ask

Does Issuing Shares Always Dilute Existing Shareholders?

Generally yes, unless existing shareholders take up new shares pro rata under pre-emption rights. Your Shareholders Agreement and Articles should be clear on who gets the first chance to subscribe and on what terms.

Is There Tax On Issuing New Shares?

There’s typically no stamp duty on the allotment of new shares. Stamp duty commonly applies to transfers of existing shares. Always get tax advice if you’re restructuring or mixing new issues with secondary sales.

What If Investors Want Different Rights?

That’s common. You can create distinct share classes with tailored rights (dividends, liquidation preference, votes). Just ensure your Articles authorise them and the rights are drafted cleanly. Preference mechanics can be complex - invest time up front to avoid misunderstandings later.

Can We Offer Shares To Employees?

Yes, through option or growth schemes, often with vesting and leaver provisions. This requires careful design to manage dilution and incentives. Consider whether enterprise schemes (e.g. EMI) could suit your stage and eligibility.

Putting It All Together: A Sensible Funding Sequence

If you’re not sure where to start, many UK SMEs follow a pragmatic path:

1. Streamline internal cash (pricing, costs, debtor/supplier terms, inventory).
2. Use short-term debt or a small director loan with a well-drafted agreement.
3. Plan your cap table, including founder vesting and employee incentives.
4. Decide on share classes, price and protections suited to your round.
5. Get authority to allot and address pre-emption, then execute your Share Subscription Agreement, align your Articles, and implement a robust Shareholders Agreement.
6. File SH01, issue certificates, update registers/PSC, and keep your Confirmation Statement current.

Want a deeper dive on founder versus investor rights? It’s worth reviewing how share classes shape control and how dilution plays out over multiple rounds.

Key Takeaways

• For a UK company, new share capital is an external source of finance - it’s money raised from owners/investors, not generated by trading - and it sits in equity on your balance sheet.
• Equity is patient capital with no mandatory repayments, but it dilutes ownership and often comes with governance expectations. Balance equity against internal efficiencies and debt options.
• Choose the right share class for your round. Ordinary, preference, redeemable and non-voting shares all serve different goals; get the terms and share premium treatment right from day one.
• Follow the legal steps: obtain authority to allot, deal with pre-emption (or disapply it), sign a Share Subscription Agreement, align your Articles, adopt a Shareholders Agreement, file SH01 and update registers/PSC.
• Protect control and clarity as you grow. Set decision rights, transfer rules and investor protections clearly up front to avoid disputes later.
• If you need cash quickly or want to avoid dilution, explore internal funding, short-term debt or a documented director loan while you prepare properly for a larger equity round.

If you’d like help structuring your raise, drafting investor documents or updating your Articles and cap table, you can reach us at 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.