Starting a business in the UK means dealing with paperwork.

One document stands out as essential: the certificate of incorporation. This single piece of paper proves your company exists legally and opens doors to banking, contracts, and business operations.

Most new business owners don't fully understand what this document does or why they need it. So, let's figure it out.

What is a certificate of incorporation?

A certificate of incorporation is the official document that proves your company exists under UK law. Companies House issues this certificate after reviewing and approving your company registration application.

The certificate shows that your business has met all legal requirements for incorporation. Under the Companies Act 2006 , this document provides conclusive evidence that your company is properly registered. Courts and government agencies accept it as definitive proof of your company's legal status.

More importantly, the certificate creates what lawyers call a "separate legal entity." Your company becomes a distinct person in the eyes of the law, separate from you as the owner.

This separation allows the company to:

  • Own property in its own name.
  • Sign contracts independently
  • Take legal action without involving personal assets
  • Continue operating despite changes in ownership

The document serves multiple purposes beyond simple registration proof. Banks require it to open business accounts. Government agencies need it for tax registration. International partners expect it for business dealings.

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Why is it important?

Here is why the certificate of incorporation document matters for serious business operations:

  • Limited liability protection: Without this document, you remain personally responsible for all business debts and legal claims. The certificate creates a protective barrier between your personal assets and business obligations. Creditors cannot pursue your home, car, or personal savings to settle business debts.
  • Tax advantages: Companies pay corporation tax on profits, often at lower rates than personal income tax. Various reliefs and allowances become available only to incorporated businesses, and professional tax planning opportunities expand significantly after incorporation.
  • Improved contract capacity: Companies can enter agreements that continue beyond changes in ownership or management. This perpetual succession provides stability for long-term contracts and business relationships that personal entities cannot offer.

Quick note: When expanding your business overseas, your certificate of incorporation often needs official authentication for foreign authorities to accept it. London Apostille Services Ltd specialises in legalising business documents, including certificates of incorporation for worldwide use.

We handle the complete authentication process, whether you need a fast e-apostille service for Hague Convention countries or full embassy attestation for non-Hague Convention destinations.

What does a certificate of incorporation look like?

The certificate of incorporation carries specific information in a standardised format.

Key information included:

  • Company name: Appears exactly as registered with Companies House and must include appropriate endings like "Limited," "Ltd," "PLC," or other approved designations. The name shown determines how you must present your business legally.
  • Registration number: A unique eight-digit identifier for your business in all official records. This number may include prefixes indicating jurisdiction:

    • No prefix for England and Wales (8-digit numbers)
    • "SC" for Scotland (followed by 6 digits)
    • "NI" for Northern Ireland (followed by 6 digits)
    • "OC," "SO," and "NC" for Limited Liability Partnerships in England/Wales, Scotland, and Northern Ireland, respectively
  • Incorporation date: Establishes when your company gained legal existence. This date becomes important for statutory filings, annual accounts, and compliance deadlines, as all corporate obligations begin from this date.
  • Company type: Specification that appears on the certificate. Most show "Private Company Limited by Shares" for standard limited companies. Other types include companies limited by guarantee or Community Interest Companies.
  • Registered office jurisdiction:Confirms where your company is legally based. This affects which legal system governs your business and where certain legal proceedings must take place.

Official authentication comes through the registrar's signature or digital certification. This authentication proves the document's legitimacy and prevents forgery.

Key functions of a certificate of incorporation

The certificate serves as foundation documentation for numerous business activities. Every incorporated company needs this document to prove its legal status and capacity.

  • Legal compliance: Companies must maintain this document as evidence of proper registration. Regulatory bodies, including HMRC, industry regulators, and courts, require it for various proceedings and official interactions.
  • Commercial transactions: Suppliers need proof of incorporation before extending credit terms, and major customers often require incorporation evidence before signing significant contracts or entering business relationships.

  • Property ownership: Companies cannot buy, sell, or lease property without proving incorporation status. The certificate provides this essential verification for all real estate transactions.

  • Court proceedings: Legal standing verification is required when companies sue or face legal action. Courts must verify corporate status before accepting cases involving business entities.

  • International business expansion: Foreign banks require these documents to open overseas accounts, and regulatory authorities in other countries need incorporation proof for business licenses and permits.

  • Banking relationships: Every UK business bank requires this document to open an account. International banking becomes possible only with proper incorporation evidence and verified corporate status.

  • Loan applications and business credit: Financial institutions commonly request the certificate as part of their due diligence process when assessing business loan applications.

  • Professional services engagement: Solicitors, accountants, and consultants may need to verify corporate status before providing services or advice to your business.

  • Insurance coverage: Commercial insurance policies require verification of legal entity status before coverage begins, and business insurance requires proof of a legitimate corporate structure.

How to get a certificate of incorporation

Getting your certificate of incorporation involves several steps and decisions. The process has become more complex recently due to new transparency requirements implemented in 2024.

Step 1: Prepare your application

Online registration represents the fastest and most common approach. Companies House processes most applications through their web incorporation service. 

This method costs £50 for standard processing and can be paid by debit or credit card.

You'll need to start by choosing a company name:

  • Check availability through the Companies House register before applying.
  • Prepare three potential names in case your first choice is unavailable.
  • Names must include appropriate endings and cannot contain restricted words without permission.

Step 2: Gather required information

You need detailed director information, including:

  • Full names
  • Dates of birth
  • Home addresses
  • Service addresses

Step 3: Set your registered office

Your registered office address must be a UK-based physical location. PO boxes became unacceptable from March 4, 2024. The address receives official correspondence and must be staffed during business hours.

New requirements implemented in March 2024 include mandatory registered email addresses and statements of lawful purpose. These additions aim to improve transparency and prevent economic crime.

Step 4: Submit and wait for processing

  • Online applications: Usually 24 hours, but currently taking longer due to high application volumes – £50
  • Same-day service: £78 cost, requires submission by 3 pm (Monday to Friday)
  • Paper applications: 8-10 days minimum plus postal time – £71

Digital certificates arrive as PDF email attachments upon approval. You can download these documents free from the Companies House public register using your company registration number.

Getting additional certified copies

After incorporation, you may need certified physical copies of your certificate or other company documents for banking, legal, or business purposes.

These official copies carry the same legal authority as your original certificate and can be ordered through two convenient methods.

  • You can order certified certificates through the Companies House "Find and update company information service" by searching for your company and selecting the order option from the 'More' tab.
  • Alternatively, you can call the Companies House contact centre on 0303 1234 500 to place your order over the phone.

These certified physical copies are sent by Royal Mail with two dispatch options available:

  • Standard dispatch: £15 for certificates (£30 for incorporation documents). Delivered within 10 working days via Royal Mail Second Class post (UK) or Royal Mail International post (overseas).

  • Express dispatch: £50 for certificates (£100 for incorporation documents). Same-day processing if ordered before 11 am, otherwise, the next working day. Delivered via Royal Mail 1st Class post (UK) or Royal Mail International post (overseas).

Step 5: Legalise your certificate for international use

You might need to get your certificate of incorporation legalised for use abroad. The Foreign, Commonwealth & Development Office (FCDO) can authenticate your certificate, giving it the same legal validity overseas as it has in the UK.

For countries that have signed the Hague Convention of 1961, this process involves getting an apostille attached to your document.

Important requirement: To get a Companies House document legalised by the FCDO, it must have the original signature of a British public official.

  • You can either order a certified certificate directly from Companies House, or
  • Have an FCDO-registered solicitor from London Apostille Services Ltd certify a copy they download from the register.

London Apostille Services Ltd handles the complete legalisation process for certificates of incorporation and other business documents.

Our FCDO-registered service can apostille your certificate for international use, whether you need standard processing or same-day service. We manage everything from document verification to final apostille attachment.

For electronic apostilles that provide faster processing, you can order an e-apostille service, which typically completes within 5 hours to 2 days.

If you need your certificate of incorporation authenticated for overseas business operations, get your UK document legalised through our complete apostille service (including 'embassy legalisation' as needed).

Bar chart showing UK incorporation processing times and fees.

Dealing with changes and replacements in your certificate of incorporation

Company changes require specific procedures and may result in new certificates.

Understanding these processes prevents delays and ensures compliance:

  • Name changes: Need special resolution approval requiring 75% shareholder support. File Form NM01 with Companies House along with the required fee. Online submissions cost £20, postal applications £30, and same-day service £83.

  • New certificates for name changes: Name changes result in new certificates titled "Certificate of Incorporation on Change of Name." These supersede original certificates and should be used for all future business purposes.
  • Registered office changes: Use Form AD01 to notify Companies House of address changes within the same UK jurisdiction.

  • Director appointments: Need Form AP01 to notify Companies House of new director appointments within 14 days.
  • Director resignations: Require Form TM01 filing within 14 days.

  • Article amendments: Need special resolutions passed by shareholders to change the company's articles of association.
  • Free digital copies: You can download replacement certificates from the Companies House register at no cost. These work for most business purposes and can be accessed through the "Find and update company information service.

  • International use requirements: Often require certified copies rather than downloaded versions. Apostille services need official Companies House authentication for foreign recognition in countries that have signed the Hague Convention of 1961.
  • Authentication for overseas use: Companies House documents must have the original signature of a British public official to qualify for apostille authentication and international legal recognition.
  • Document storage:Keep both digital and physical copies in secure locations. Cloud storage provides backup for critical business documents, while certified physical copies meet formal requirements.

Common issues and how to resolve them

Several problems commonly occur during incorporation or afterwards:

  • Name rejections: Happen frequently when chosen names are already taken or contain restricted words. Some words require approval from specific government departments – financial services terms need FCA approval, while medical terms require Department of Health permission.

  • Documentation errors: These cause application rejections through common mistakes, including incomplete forms, incorrect director details using initials instead of full names, and wrong People with Significant Control information.

  • Share capital errors: Occur when companies attempt unauthorised structures. Companies cannot own shares in themselves, and complex ownership structures may need professional guidance to structure properly.
  • Processing delays:These now exceed historical 24-hour standards as current applications often take several days due to increased volume and staff training for new requirements. Same-day service may also experience delays during busy periods.

Prevention and solution strategies:

  • Name selection best practices: Use the Companies House name availability checker, prepare multiple acceptable name options, avoid words likely to need special approval, and choose distinctive names that are unlikely to conflict.

  • Error correction options: Form RP04 provides the mechanism for correcting minor errors in accepted filings. More significant mistakes require resubmission with explanatory cover letters and additional fees.

  • Professional assistance:Formation agents reduce rejection risk through pre-submission reviews. Their experience with current requirements often proves worthwhile compared to delay costs and resubmission fees.
Graphic illustrating a company-name availability search with a green tick for an accepted name and a red cross for a rejected one.

Frequently asked questions (FAQs)

Here are answers to the most common questions about certificates of incorporation.

Limited companies must obtain certificates of incorporation. This includes private companies limited by shares, companies limited by guarantee, and Community Interest Companies. Sole traders and general partnerships can operate without incorporation requirements but sacrifice limited liability protection.
Standard online processing currently takes 24-48 hours for most applications. Same-day service costs £78 and requires submission before 3 pm Monday through Friday. Paper applications require a minimum of 8-10 days processing plus postal transit time.
You remain personally responsible for all business debts and obligations without incorporation. UK banks require certificates of incorporation for business account opening. Legal compliance risks include potential prosecution with director penalties for non-compliance.
The certificate represents official confirmation from Companies House that incorporation requirements have been satisfied. Articles of association establish internal company rules and governance structures.

US practice often uses "Articles of Incorporation" to describe documents filed with state authorities, creating confusion with UK terminology.

Conclusion

Your certificate of incorporation opens doors to legitimate business operations, but international expansion often requires additional authentication.

Many countries won't accept UK business documents without proper legalisation through an apostille or embassy attestation.

London Apostille Services Ltd provides a complete "done-for-you" legalisation service that handles every requirement.

As FCDO-registered agents with over 15 years of experience, we offer express next-day apostilles, secure document handling, and tracked worldwide delivery.

Our expert team spots potential issues before they become costly rejections, ensuring your documents are prepared correctly the first time.

Get a free document review to confirm the exact legalisation process for your destination country.