Alex is Sprintlaw’s co-founder and principal lawyer. Alex previously worked at a top-tier firm as a lawyer specialising in technology and media contracts, and founded a digital agency which he sold in 2015.
Company capital underpins who owns your business, how you raise money and what you can legally pay out to shareholders. If you’re running a limited company in the UK (or planning to set one up), understanding how company capital works will help you avoid costly mistakes and set you up for future growth.
In this guide, we’ll explain the essentials in plain English: what “share capital” actually is, how much you should start with, the main ways to change your capital over time, and the key legal, filing and tax points you can’t ignore.
Getting your capital structure right from day one will make it easier to bring in investors, reward your team and protect your control of the business as you grow. Let’s break it down.
What Is Company Capital?
“Company capital” usually means your company’s share capital - the equity issued to shareholders in exchange for value (usually cash). In a limited company, the capital structure determines ownership, voting rights, entitlement to dividends and who gets what on an exit.
Key Terms Explained
- Authorised vs issued capital: UK companies no longer use “authorised share capital” (since the Companies Act 2006). What matters is what you actually “allot” (issue) to shareholders.
- Nominal (par) value: Each share has a nominal value (for example, £0.01 or £1). This is not the same as market value. The aggregate nominal value of issued shares is the “share capital”.
- Paid up vs unpaid: Shares can be issued as fully or partly paid. If they’re not fully paid, the company can call up the unpaid amount later. For most small companies, fully paid shares are simpler.
- Ordinary and preference shares: Ordinary shares typically carry votes and rights to dividends. Preference shares can have priority on dividends or on a return of capital, and their terms are set in the articles or a shareholders’ agreement.
- Equity vs debt: Share capital is equity. If you lend money to your company (for example via a director’s loan), that’s debt - recorded separately and repayable under loan terms, not equity rights.
Your company’s constitution (the Articles of Association) and any agreements between owners define the rights attached to each class of share, including voting, dividends, pre-emption (priority rights to new shares) and what happens on a sale or winding up.
How Much Share Capital Should You Start With?
There’s no legal minimum for a private limited company (beyond at least one share). It’s common to start with a low nominal value and enough shares to allow flexibility. For example, issuing 100 or 1,000 ordinary shares at £0.01 each gives you “room” to split ownership precisely (e.g. 60/40 or 75/25) and to allocate small stakes later without awkward fractions.
Practical Tips For Setting Initial Capital
- Pick a low nominal value: £0.01 shares are popular. The nominal value affects the minimum amount you must receive per share on issue.
- Think ahead about percentages: Choose an initial number of shares that makes future allocations straightforward (e.g. to a co-founder or advisor).
- Plan for investment: If you may raise funds, consider creating separate share classes (e.g. non-voting, preference) - but keep things simple until there’s a concrete reason to add complexity.
- Avoid over-issuing to founders: You can always issue more shares later. Starting lean keeps future dilution manageable.
- Use pre-emption sensibly: Statutory pre-emption rights or those in your articles/shareholders’ agreement can protect existing owners from unwanted dilution while allowing agreed exceptions.
If you’re bringing in cash at the outset, new money typically comes in via a Share Subscription Agreement, which records how many shares are issued, at what price and on what timetable, along with any conditions.
Ways To Change Or Restructure Company Capital
Companies evolve. You might need to issue new shares, carry out a buyback, redeem preference shares, or adjust the number or type of shares on issue. Each route has legal steps, forms and approvals you must follow under the Companies Act 2006.
Issue (Allot) New Shares
New issues are the main way to raise equity or bring in a new owner. Before issuing, check:
- Authority to allot: Directors need authority under the articles or an ordinary resolution.
- Pre-emption rights: By default, existing shareholders may have first refusal (statutory or contractual). Disapply by special resolution if needed.
- Pricing: Consider valuation, any premium and whether there are employee securities tax implications.
- Documentation: Use a Share Subscription Agreement and update your cap table, issue share certificates and the register of members, then file form SH01 at Companies House.
Transfer Existing Shares
A transfer is when a current shareholder sells or gifts shares. Check restrictions in your articles or Shareholders Agreement (e.g. board consent, right of first refusal, drag/tag rights). Transfers usually require a stock transfer form, payment of stamp duty (generally 0.5% on consideration over £1,000), board approval and updating the register and share certificate.
Share Buybacks And Redemptions
Want to return capital to shareholders or tidy up the cap table? Two common routes are buybacks and redemptions:
- Buybacks: The company buys its own shares out of distributable profits or from capital (more complex). You’ll need a compliant process, the right shareholder approvals, and filings (SH03/SH06). A tailored Share Buyback Agreement is critical to get the mechanics and Companies Act requirements right.
- Redemptions: If you issued redeemable shares (the articles must permit this), the company can redeem them under agreed terms. There are specific steps and filings; our guide to redeeming shares explains where redemptions and buybacks differ.
Reduce, Sub-Divide Or Consolidate Capital
You can alter the number and nominal value of shares without changing total ownership percentages:
- Sub-division or consolidation: Split each share into more shares (e.g. 1 into 10), or roll many shares up into fewer. This helps fine-tune your cap table. Board and shareholder approvals, filings (SH02) and updates to registers are needed.
- Capital reduction: A formal process to reduce paid-up capital (e.g. to eliminate losses or return surplus capital). Private companies often use the “solvency statement” route (special resolution, directors’ solvency statement, filings). This must follow strict Companies Act procedures.
These changes can impact voting, dividend rights and future fundraises. Always check your articles and investor consents before you proceed.
UK Legal, Filing And Tax Basics You Must Get Right
Capital changes are tightly regulated to protect creditors and minority shareholders. Here are the big-ticket items to keep on your radar.
Approvals And Resolutions
- Board approvals: Directors must resolve to recommend or approve allotments, transfers, buybacks or redemptions, taking account of their directors’ duties.
- Shareholder approvals: Ordinary or special resolutions may be required (for example, to allot shares, disapply pre-emption rights, approve certain buybacks or alter share rights). Keep signed minutes and resolutions for your records and filings.
Companies House Filings
- SH01 for new allotments (within a month of allotment).
- SH02 for sub-division or consolidation of shares.
- SH03/SH06 for buybacks (and cancellation of shares).
- Form statements on capital as needed, plus updates in your next confirmation statement.
Registers And Certificates
- Maintain an up-to-date register of members, PSC register and issue new share certificates and the register of members promptly after each change.
- Update PSC details when ownership or control thresholds are crossed (generally 25%+ or other rights).
Capital Maintenance Rules
- Distributions must be from “distributable profits” (retained profits per accounts). Unlawful dividends or buybacks can create director liability and shareholder repayment obligations.
- Solvency: For reductions and certain buybacks, directors must be satisfied the company can meet its debts as they fall due.
- Financial assistance: Private companies are not subject to the historic general prohibition on financial assistance for their own shares (public companies are). Even so, transactions should be for proper corporate purposes and on arm’s length terms.
Tax Touchpoints To Watch
- Stamp duty: Share transfers over £1,000 consideration typically attract 0.5% stamp duty. Buybacks may trigger stamp duty as well.
- Employment-related securities: Shares or options issued to employees/directors can create income tax/NICs if not structured correctly. Consider HMRC-approved schemes such as EMI options.
- Dividends and buybacks: Tax treatment differs for individuals and corporates; ensure your distributions are lawful and documented.
It can be overwhelming to map every approval, filing and tax implication to your scenario. Don’t stress - a short chat with a corporate lawyer and your accountant can save you from missteps and rework later on.
Tax And Accounting Basics For Company Capital
While you don’t need to be an accountant, understanding the core accounting buckets will help you make better decisions and avoid unlawful distributions.
Share Capital, Share Premium And Reserves
- Share capital: The aggregate nominal value of the shares you’ve issued (e.g. 100,000 shares of £0.01 = £1,000 share capital).
- Share premium: If you issue shares above nominal value, the excess goes into the share premium account. There are rules on what you can do with it - see our guide to share premium.
- Capital redemption reserve: Created on redemption or buyback in certain cases. It’s a non-distributable reserve to preserve capital.
- Distributable profits: The pot from which you can lawfully pay dividends or fund buybacks out of profits. It’s driven by your accumulated, realised profits per your accounts.
Pricing New Issues
Set a price that reflects current value and your goals. Issuing too cheaply can create tax issues for employee allotments and send the wrong signal to investors. Issuing too expensively can complicate future rounds. Many early-stage companies combine ordinary shares for founders with an option pool and then price investor shares in a round when there’s traction and a clearer valuation.
Employee Equity
Equity is a powerful tool to attract and retain talent, but it needs careful structuring. Option schemes (often EMI for eligible companies) can deliver tax-efficient upside while deferring tax points. If you plan to issue ordinary shares directly to employees or advisors, consider vesting schedules and “good/bad leaver” provisions to protect the company if someone leaves early.
Essential Documents To Manage Company Capital
Good paperwork equals control and clarity. Here are the core documents most UK small companies need to manage capital confidently.
Articles Of Association
Your articles set the rules on share classes, rights, transfers, pre-emption and board/shareholder decision-making. The default Model Articles are a starting point, but many companies adopt bespoke articles when investors come in or when introducing preference shares or specific transfer controls.
Shareholders’ Agreement
A robust Shareholders Agreement covers how new shares are issued, how transfers work, drag/tag rights, leaver provisions, dividend policy and dispute resolution. It’s the day-to-day rulebook that complements your articles and is essential to avoid deadlocks and surprises.
Board And Shareholder Resolutions
Keep clear minutes and written resolutions for each capital action - authority to allot, disapplication of pre-emption rights, approval of transfers, buybacks, redemptions and alterations to share capital. Proper records help you pass due diligence and reduce the risk of challenges later.
Share Subscription And Investment Documents
When raising equity, use a Share Subscription Agreement to record the price, timetable, warranties and conditions. If you’re offering preference shares, ensure terms are reflected consistently in the articles, subscription agreement and cap table.
Buyback/Redemption Documentation
For buybacks and redemptions, you’ll need a compliant process, correct resolutions and a fit-for-purpose contract such as a Share Buyback Agreement. You’ll also need to consider funding source (profits vs capital), solvency statements, and filings.
Cap Table, Certificates And Registers
Maintain a clean cap table that mirrors your statutory registers. After each issue or transfer, update your register of members and issue new share certificates and the register of members. Accurate records are a legal requirement and vital for investor confidence.
Employee Equity Plan Rules
If you’re granting options or growth shares, adopt clear plan rules and award agreements. For tax efficiency, explore EMI options if your company qualifies, and make sure notifications to HMRC are made on time.
Finally, as your company matures, you may consider tidy-ups such as redeeming shares or consolidating classes to simplify the structure ahead of a fundraising or exit.
Key Takeaways
- Company capital is the equity backbone of your business. Keep nominal values low and share numbers flexible so you can issue or allocate stakes cleanly as you grow.
- When changing capital - issuing, transferring, buying back, redeeming or altering shares - check your articles, obtain the right approvals, and follow Companies House filings and timelines.
- Distributions and buybacks must be funded lawfully from distributable profits (or via specific statutory routes). Maintain solvency and avoid unlawful distributions.
- Understand the accounting buckets: share capital, share premium, reserves and distributable profits. This helps you make compliant dividend, buyback and pricing decisions.
- Use the right documents - Articles, a Shareholders Agreement, board/shareholder resolutions, a Share Subscription Agreement and, where relevant, a Share Buyback Agreement - and keep your share certificates and the register of members up to date.
- For employee equity and founder incentives, consider tax-efficient EMI options, and put clear vesting and leaver provisions in place.
If you’d like help structuring or updating your company capital - from drafting investor-ready documents to handling allotments, buybacks or option plans - you can reach us on 08081347754 or team@sprintlaw.co.uk for a free, no-obligations chat.


