Can I be the sole director and shareholder of my startup?
By SuLe · Updated 9 May 2026
Yes — a UK private limited company needs only one director and one shareholder, and the same person can hold both roles. The director must be a natural person — a human, not another company — aged 16 or over. The main trap is technical: unamended model articles create doubt about sole-director decision-making, which a simple bespoke amendment fixes.
Key facts
- A private company needs one director (a natural person aged 16 or over) and one shareholder — the same person can be both (Companies Act 2006).
- Holding more than 25% of the shares or voting rights makes you a person with significant control (PSC), which must be registered.
- Case law from 2022 created doubt over sole-director decision-making under unamended model articles — commonly fixed with a simple bespoke amendment.
- Directors' duties under sections 171–177 of the Companies Act 2006 apply even when you own every share.
- Identity verification for directors and PSCs is being rolled out at Companies House under ECCTA 2023 — check gov.uk for the current position.
Is a one-person company legal in the UK?
Completely. The Companies Act 2006 requires one director and one shareholder for a private company, and nothing stops one person filling both roles.
The one hard requirement sits on the director: at least one must be a natural person aged 16 or over — another company cannot be your only director.
Incorporation happens online at Companies House, usually processed within 24 hours, for a £50 fee as of mid-2026 — check the current fee on gov.uk. Expect identity-verification steps under ECCTA 2023 too; the rollout is ongoing.
What's the model articles problem for sole directors?
Adopt the default model articles unamended and there is a known legal doubt — created by case law in 2022 — over whether a sole director can validly take decisions under them at all.
The point is technical, the consequence not: sole-director decisions taken under unamended model articles could be open to challenge later — exactly the defect investors' lawyers hunt for in due diligence.
The fix is simple: bespoke articles, or a short amendment, expressly allowing a sole director to take every decision alone. Do it at incorporation or later by special resolution — as the only shareholder, you pass that yourself.
What do I still have to file as a company of one?
Everything a bigger company files — sole ownership removes none of it.
Start with the PSC register: more than 25% of shares or votes makes you a person with significant control, so a 100% founder must be recorded — changes entered in your PSC register within 14 days and filed within a further 14.
Add the annual rhythm: a confirmation statement at least once every 12 months (within 14 days of your review period ending), annual accounts, and an appropriate registered office plus registered email address under ECCTA 2023.
| Requirement | The rule | Watch out |
|---|---|---|
| Director | One is enough — a natural person aged 16+ | A company cannot be your only director |
| Shareholder | One is enough — the director can be the shareholder | 100% ownership makes you a PSC |
| PSC register | Record anyone with more than 25% of shares or votes | Update within 14 days; file within a further 14 |
| Articles | Model articles apply by default | Sole-director decision-making doubt — amend them |
| Registered office and email | An appropriate address plus a registered email (ECCTA 2023) | A PO Box alone will not do |
| Confirmation statement | At least once every 12 months | File within 14 days of the review period ending |
What happens to the company if something happens to me?
This is the real weakness of a one-person company: with its only director gone, nobody has authority to run it — payroll, banking and contracts can freeze.
Well-drafted articles reduce the risk, for example by letting your personal representatives appoint a new director if you die. Pair that with a will covering your shares and a written record of key logins and accounts.
None of this is legally required; all of it turns a crisis into an administrative task.
Will investors mind that I'm a sole director and shareholder?
At incorporation, not at all — investors back solo founders constantly, and a clean one-person company is easier to diligence than a messy two-person one.
Expect the structure to evolve at funding: an expanded board, investor consent rights and, before any of that, evidence that your sole-director decisions were valid — which is why the articles fix matters early.
And directors' duties under sections 171–177 of the Companies Act 2006 apply even when you own every share: the company is a separate legal person, so keep its money separate and declare your interest in any contract with it.
Worked example
Freya incorporates Hexloop Ltd, a developer-tools startup, as sole director and sole shareholder: 10,000 ordinary shares at £0.001 nominal, £10 of share capital. Her formation includes one bespoke tweak expressly allowing a sole director to take all decisions.
She records herself on the PSC register — 100% is comfortably over the 25% threshold — and diarises the confirmation statement.
Eighteen months later an angel invests £50,000 for 2,500 new shares at £20.00 each — 12,500 shares in issue, 20% to the angel, a £200,000 pre-money valuation (10,000 × £20). The angel's lawyers check her sole-director decisions, find the amendment, and clear the point in a day.
Where founders go wrong
Keeping unamended model articles as a sole director.
Your decisions could be open to challenge — adopt the standard fix now.Skipping the PSC register because "it's obviously just me".
The register must still say so — record yourself and keep the filings current.Treating company money as your own.
The company is a separate legal person; pay yourself properly and document anything between you and it.Having no succession plan.
A one-person company with no living director can seize up — articles, a will and a record of essentials prevent it.
Related questions
Does a UK company director have to live in the UK?
No — company law sets no residency requirement for directors, so you can run a UK company from anywhere. The company itself, though, must keep a registered office at an appropriate address in its UK jurisdiction of incorporation, and its statutory filings still run on UK deadlines. [More: Can a non-UK resident be a director of a UK company?]
Am I a PSC of my own company?
Yes. A person with significant control includes anyone holding more than 25% of a company's shares or voting rights, so a 100% founder qualifies several times over. You must be entered in the company's PSC register and the details filed at Companies House — it is not optional because the answer is obvious. [More: What is a PSC and who counts as one?]
Do directors' duties matter when it's only me?
Yes. The duties in sections 171–177 of the Companies Act 2006 are owed to the company, which is a separate legal person from you — even when you own every share. Keep company money separate, document decisions and declare your interest in any contract between you and the company. [More: What are directors' duties under the Companies Act 2006?]
Do I need a shareholders' agreement as the only shareholder?
No — a shareholders' agreement is a contract between shareholders, and there is only one of you. It becomes essential the moment a co-founder, investor or option-exercising employee is about to take shares, and it should be signed before those shares are issued, not after. [More: Do I need a shareholders' agreement as a solo founder?]
A one-person company is legally simple but the details — the sole-director articles fix, the PSC register, what happens if you are suddenly out of action — are exactly where DIY setups spring leaks that surface in due diligence. A SuLe solicitor can put the fixes in place in one pass. Book a free 15-minute consultation about your setup and start with a structure investors will not pick apart.
Keep reading: Should I use model articles or bespoke articles of association? · What is a PSC and who counts as one? · What are directors' duties under the Companies Act 2006? · Do I need a shareholders' agreement as a solo founder? · What address can I use as my registered office? · Can I change my company's articles after incorporation?
Primary sources: GOV.UK — Set up a private limited company · Companies Act 2006
