These two documents do different jobs. The certificate proves Companies House has registered your company as a separate legal entity. The articles set out how that company actually runs, day to day.
Many founders, directors, shareholders, and overseas owners struggle to tell these documents apart — let alone know which one a bank or investor is actually asking for. Add memoranda, incorporation applications, and certified copies into the mix, and confusion is common.
This guide breaks down each document, explains why they matter for banking, financing, and due diligence, and shows you how to retrieve, check, and rely on them with confidence.
Key Takeaways
- Certificate of incorporation proves Companies House has registered the company; articles set the internal operating rules.
- Memorandum records the subscribers' original agreement to form the company; the application supplies the registration data.
- Model articles suit simple structures; switch to bespoke once share classes, investors, or voting rights get complex.
- Check company name, number, incorporation date, jurisdiction, and article version before relying on these documents.
What Are Documents of Incorporation in the UK?
"Documents of incorporation" is an umbrella term, not a single legal filing. It covers everything used to apply for, confirm, and govern the formation of a UK company or LLP. Depending on context, it might mean the paperwork submitted to Companies House, or the certificate and constitution received once registration goes through.
These documents connect directly to one another:
- Information submitted through the incorporation application feeds the official company record.
- Approval of that application triggers the certificate of incorporation.
- The memorandum captures the subscribers' original agreement to form the company.
- The articles of association then govern how the company operates from that point forward.
Pre-registration versus post-registration:
- Submitted during formation: the application (IN01 for companies, a separate route for LLPs), the memorandum, and the chosen articles.
- Issued after approval: the certificate of incorporation and the live Companies House register entry.
Different UK structures carry different documentation needs:
- Private company limited by shares: articles, memorandum, and share-related filings
- Company limited by guarantee: articles built around guarantors rather than shareholders
- Public limited company: extra pre-trading requirements, including a trading certificate
- LLP: its own application and certificate of incorporation, with governance in a members' agreement rather than articles
VJM Global supports UK company formation by preparing the memorandum and articles, filing the Companies House application, and coordinating registered office and company number allocation.
Why Are These Documents Important?
A certificate of incorporation confirms your company exists as a separate legal person, distinct from its directors and shareholders.
Under the Companies Act 2006, the registrar must state the registered name, company number, and incorporation date. The certificate also records whether liability is limited by shares or guarantee, whether the company is private or public, and which UK jurisdiction the registered office sits in.
The articles matter just as much, for different reasons. They determine:
- How directors are appointed, removed, and how much authority they hold
- How shareholders make decisions and call meetings
- How shares are issued, transferred, or bought back
- Voting thresholds for ordinary and special resolutions
Banks, investors, and counterparties ask for these documents constantly. Expect requests when you're:
- Opening a business bank account
- Applying for a loan or investment finance
- Signing supplier or customer contracts
- Proving who has authority to sign on the company's behalf
- Completing due diligence for a sale, merger, or partnership
- Registering a branch or subsidiary overseas
Relying on outdated or inconsistent documents creates real friction. A bank may reject an account application. An overseas regulator may delay verification for weeks. Investors may raise governance disputes if the articles on file don't match what was actually agreed.
One distinction trips up almost everyone: a certificate of incorporation does not prove ongoing compliance or good standing. It's a registration record, frozen at the point of formation.
Companies House now issues a "summary statement" (renamed from "good standing statement" in March 2024). It confirms continuous existence and no pending strike-off action, but only when filings are current. Confirm this directly with Companies House rather than assuming your certificate covers it.
Types of UK Incorporation Documents
Each document answers a different question: does the company exist, who agreed to form it, how is it governed, and what information did Companies House receive at registration?
Certificate of Incorporation
Companies House issues this the moment registration is approved. It's the formal evidence that your company exists.
It typically confirms:
- The registered company name
- The company number
- Date of incorporation
- Company type (limited by shares, guarantee, or unlimited)
- The UK jurisdiction of the registered office
What it does not tell you: who currently directs the company, who owns it, what its internal rules say, or whether it's still compliant today. For that, check the live Companies House register.
Articles of Association
The articles are the company's internal rulebook. They cover director appointment and removal, shareholder decision-making, meeting procedures, and share rights and transfers.
Most straightforward companies adopt model articles, the standard default set. Separate versions exist for private companies limited by shares, companies limited by guarantee, and public companies.
Growing companies often need more. Bespoke or amended articles become relevant once you introduce:
- Multiple share classes
- External investors with specific rights
- Unusual voting arrangements
- Founder-protection provisions
The right choice depends on ownership structure and future plans, not on how detailed the document looks. Where bespoke provisions apply, get them reviewed by a qualified professional. Fixing a poorly drafted article after a dispute costs far more than getting it right upfront.
Memorandum of Association
The memorandum is short but essential. It records that the original subscribers agreed to form the company and, for a company limited by shares, agreed to become members and take at least one share each.
It's a snapshot, not a rulebook. It doesn't replace the articles and can't be updated once the company is registered.
Online registration generates the memorandum automatically from the information submitted. Postal applications must use the prescribed Companies House template instead.
Incorporation Application and Supporting Information
The application asks Companies House to register the company. The certificate confirms that registration succeeded. They're not interchangeable.
A standard company application typically covers:
- Proposed company name and registered office
- Registered email address
- Director and secretary details
- People with significant control (PSC) information
- Share structure or guarantee arrangement
- SIC code describing the company's activity
- Choice of articles (model, amended, or bespoke)
Since November 2025, identity verification has become compulsory for new directors incorporating or joining a UK company, alongside PSC verification requirements. Requirements vary by structure. LLPs use a separate application route and need at least two designated members.
How to Choose and Use the Right Incorporation Document
There's no single "correct" incorporation document. The right one depends on what you're trying to prove, understand, submit, or change.
| Purpose | Document to use |
|---|---|
| Prove the company's registered existence | Certificate of incorporation |
| Understand governance rights and decision-making | Articles of association |
| Confirm the original subscribers' formation agreement | Memorandum of association |
| Review information submitted to Companies House | Incorporation application and filing history |
A standard digital copy is usually enough for internal reference. Some situations call for more:
- Certified copies — often needed for legal proceedings or formal verification
- Summary statements — confirm continuous existence and no pending strike-off action
- Legalisation or apostille — required by many overseas banks, regulators, and investors before accepting a UK document
Companies House charges £22 for a standard certified document, rising to £44 for incorporation documents specifically, with express service at £65 or £130. Standard orders typically dispatch within 10 working days; express orders placed before 11am usually go out the same day.
If a document needs to travel overseas, confirm the receiving authority's exact requirement first. A certified copy, a summary statement, and an apostilled document are not the same thing.
Document-Review Checklist
Before sending any incorporation document to a bank, investor, or overseas authority, check:
- Registered company name matches exactly
- Company number is correct
- Incorporation date is accurate
- Company type is correctly stated
- Jurisdiction (England and Wales, Scotland, or Northern Ireland) is correct
- Registered office details are current
- Share or guarantee structure matches what's actually agreed
- Director and PSC information is up to date
- Articles type (model, amended, or bespoke) matches what you actually use
A certificate of incorporation proves the company was registered. It does not prove current compliance, current ownership, or authority to enter every type of transaction. Don't stretch it beyond what it says.
Don't rely on articles that no longer reflect reality either. If your company has issued new share classes or changed voting arrangements since incorporation, outdated articles cause real disputes.
Before you finalise or rely on a copy:
- Check the document's date
- Compare it against the Companies House filing history
- Confirm nothing material has changed since it was issued
For UK companies expanding into India, or Indian entities investing into the UK, the paperwork doesn't stop at incorporation. VJM Global supports UK businesses with post-incorporation accounting, tax compliance, and advisory work once they've established operations in India. For the UK incorporation documents themselves, always confirm requirements with Companies House or a qualified UK legal adviser first.
Conclusion
A certificate of incorporation confirms your company's legal existence. The articles of association govern how it operates: who decides what, how shares move, and how meetings run.
The memorandum and incorporation application add formation context: one captures the subscribers' original agreement, the other shows what was submitted to Companies House.
Keep all four documents secure and current. Check them against the Companies House register before relying on them for anything significant.
Where governance gets complex or cross-border compliance is involved, get advice from a qualified UK professional.
Frequently Asked Questions
How do I get a certificate of incorporation for my UK company?
Companies House issues it automatically once your incorporation application is approved. For another copy, search the company on the Companies House register or order a certified copy through the online service.
How do I verify a company in the UK?
Use the Companies House "Find and update company information" search service. Compare the company number, registered name, status, filing history, officers, and registered office against what you've been given.
What is an incorporated company in the UK?
It's a company registered with Companies House as a legal entity separate from its owners. From the date of incorporation, it can hold assets, enter contracts, and take on obligations in its own name.
What is a business incorporation document?
There is no single statutory filing by that name. The phrase usually covers the incorporation application, certificate of incorporation, memorandum, and articles of association, depending on which document you need.
