Where Do I Find My Company Registration Number (CRN)

A company registration number (CRN) classifies a company and validates the fact that the business is an entity registered with the Companies House. The CRN is a unique combination of numbers and letters and is sometimes also referred to as the company number or registration number. The CRN is automatically assigned to a company by Companies House when it is formed. A CRN applies to companies (limited companies and limited liability partnerships) or businesses, registered or incorporated at Companies House. A sole-trader business is not incorporated in this way and as a result does not have a CRN. A business cannot decide on or reserve a specific number nor can a company number be changed: even if the company alters its business name or nature of business or directors and shareholders; THE CRN WILL REMAIN THE SAME

Company Registration

The first step towards starting your business is to decide if you want to start as a limited company or as a sole trader. In case, you decide start as a limited company, you need to register your company with Companies House under Companies Act 2006. As the name suggests, it is under Company House where a company is created, renamed, restructured or closed. You can think of it as the birth, marriage and death for companies. More than 3.5 million limited companies are registered in the UK and approx 5,00,000 new companies are incorporated every year. United Kingdom was the first country to create and maintain such an open and transparent corporate information register and this system allows the general public to monitor and inspect the ownership, actions and reliability of each and every company (As per Company Act 2006 ) transacting business in UK.

As the official registrar of companies in the UK, Companies house function in three separate countries, each of them having its own registrar. For companies in England, they must register in England and Wales because England and Wales are treated as a single entity and the companies are registered with a unified register, whereas companies in Scotland or Northern Ireland must register with Scotland and companies in Wales may choose to register in either England or Wales or in Wales.

Company Registrations for England and Wales

Company Registrations for England and Wales

Company registrations for England and Wales are done in Cardiff and are subject to English Law. Chief Executive Tim Moss is the Registrar of Companies for England and Wales. Registrations for companies for Scotland are carried out in Edinburgh and they are subject to Scots Law. The Registrar of companies for Scotland is Aoife Martin. For companies in Northern Ireland, registration is done at their satellite office in Belfast and its registrar of companies is Helen Shilliday. Before 1st Oct 2009, all limited companies in Northern Ireland were subject to Northern Ireland Law.

Companies Registration Number

Companies Registration Number, also known as CRN Number, is allocated by Companies House once you register your company with it, subject to its approval by the Companies House and is applicable only for the Limited Companies and Limited Liability Partnerships (LLPs).You cannot choose or change your CRN number once issued. It is a computer generated number which is sequential in nature depending on the country you are getting your company registering with and the type of your company.

Companies Registration Number is also commonly known as the Company Number, Registration Number or it is simply abbreviated as CRN and is a unique combination of numbers, and in some cases, letters as well.

Company Registration Number
Company Registration Number

Format of a Company Registration Number

However, Companies House uses a special reference to distinguish between English and Scottish companies by allocating different prefix to the digits. For example, for the companies which are registered in Scotland will have prefix SC with the digits while for the companies which are registered in England and Wales will have eight digits. Companies registered in Wales don’t have any special reference number in their registration number to distinguish them from their English counterparts; however, they have an option to replace the word Limited or Ltd with either cyfngedig or cyf.

Limited Companies formed and registered in England and Wales will have CRNs beginning with “0”, whereas Scottish Limited Companies will have CRNs beginning with the prefix “SC”. Limited Liability Partnerships(LLPs) will have CRNs beginning with prefix “OC” whereas their Scottish counterparts will have CRNs beginning with prefix “SO”.Limited companies based in Northern Ireland are identified by ‘NI’ followed by 6 digits. There are also some older Northern Irish companies with company registration numbers beginning ‘R’ followed by 7 digits, but no new numbers are issued on this basis. LLPs registered in Northern Ireland have references beginning ‘NC’ followed by 6 numbers.

Registered Office Example of CRNs
England & Wales, Wales Limited Company - 01234567
LLP - OC555555
Limited Partnership - LP0031339
Scotland Limited Company - SC123456
LLP - SO305443
Limited Partnership - SL002900
Northern Ireland Limited Company - NI123456
LLP - NC001306
Limited Partnership - NL000107

Purpose of Company Registration Number - Why/Where is it required?

Company Registration Number is used to identify and verify legal presence of your company as an incorporated unit and it is printed on the Certificate of Incorporation and other relevant documents issued by the Companies House.

All company incorporation documents are subject to checks and once all documents satisfy all the required and appropriate examination and company name checks, your company gets incorporated at the Companies House and a Certificate of Incorporation is issued with the following details:

  1. Name of the company.
  2. Registration Number of the Company.
  3. Date of its Incorporation
  4. Company Type i.e. Private Limited by Shares
  5. Whether the company’s registered office is in England and Wales, Wales, Scotland or in Northern Ireland.
Certificate of Incorporation
Certificate of Incorporation

Companies House will request your Company Registration Number in case you make any enquiries with it. Because it identifies your company, you will need the Company Registration Number for all kind official correspondence with the Companies House on important occasions like:

  1. If you want to change name of your company.
  2. If you want to change the registered address of your company.
  3. For filing company’s annual account.
  4. For filing resolution copies.
  5. For setting up or changing a Single Alternative Inspection Location, also known as SAIL address.
  6. For appointing or removing a company director, company secretary or any LLP member.
  7. For changing details of a company director, company secretary or any LLP member.
  8. For changing the company’s accounting reference date.
  9. For moving the location of statutory records between the registered office and SAIL address.
  10. In case of dissolution of your company.

Apart from the above occasions, you would need your company registration number for making any kind of queries/correspondence with Her Majestys Revenue & Customs (HMRC), which includes:

  1. Registration and payment of Corporation Tax and filing company tax returns.
  2. Registering the company for submission and payment of VAT.
  3. Registering and payment of PAYE reports.
  4. For filing company accounts.
  5. For changing the status of the company i.e. from active to dormant.

Company Registration Number is also required on occasions like opening a business bank account, issue of share certificates to its shareholders, issue dividend vouchers, any kind of communication with other parties about the business.

Where do You Find Your Company Registration Number?

Limited Companies and Limited Liability Partnership Companies, as per law have to display their company registration number on the following:

  1. Companys website
  2. Letterheads
  3. Compliment Slips
  4. Faxes
  5. Emails
  6. Receipts
  7. Invoices
  8. Order Forms
  9. Brochures
  10. Leaflets
  11. Any online material

In case, you have are not able to find your company registration number, there are number of places where you can find this number, such as:

  1. Certificate of Incorporation: When Companies House issue Certificate of Certification, it mentions both the company name and the company registration number on it.
  2. Correspondence Letters and Emails: Any sort of official correspondence between your company and your accountant or your agent must have your company number quoted on the letters.
  3. Correspondence with Companies House and HMRC: When you receive any official document from Companies House, your company registration number is mentioned on it.
  4. Companies House Records: You can search Companies House records by your company name for the company registration number.
    Searching Companies House Records Online
    Searching Companies House Records Online
  5. Company Name Certificate: In case you have changed your company name changed, you would receive a change of company name certificate with company registration number mentioned on it.

CRN and its usages

Since, a CRN is the prime identification of a business or the company; it needs to be provided at numerous occasions. Most importantly, a business will be required to produce the company registration number (CRN) for any interaction with the Companies House. Following are a list of few imperative places where it is mandatory to show a company registration number (CRN):

  • Allotting shares or making any modification to the company’s share capital
  • Amending a companys accounting reference date
  • Dissolving a company
  • Deploying or removing a company secretary, company director, or LLP member
  • Amending the information of a company director, company secretary, or LLP member
  • Filing the companys annual accounts
  • Modifying the name of a company
  • Changing a companys registered office address
  • Filing a confirmation statement (a confirmation statement will act as a substitute for annual return starting 30 June 2016)
  • Shifting the location of statutory records between the registered office and Single Alternative Inspection Location (SAIL) address (SAIL address is a place where a business or company can keep its statutory records and make them accessible for public inspection)
  • Setting up or changing a SAIL address

Furthermore, a Companies House will ask for a company registration number if they make any enquiries. Similarly, a business or company will be required to quote the CRN to HM Revenue and Customers (HMRC) when:

  • A company will be required to register for corporation tax, paying corporation tax and filing business tax returns
  • A company or business registers for value added tax (VAT), paying VAT and submit VAT returns
  • A company registers for pay-as-you-earn (PAYE) and while submitting PAYE reports
  • A company files their accounts
  • A company needs to inform the HMRC that a new company is inactive or modifying its status of an existing company from active to inactive

Apart from the above mentioned reasons, a company may have to produce the CRN at certain other occasions as well. It is imperative to mention CRN when writing to or making an enquiry with HMRC. These situations include:

  • Applying for other forms of credit
  • Communicating with government bodies apart from Companies House and HMRC
  • Communication with other departments about the companys business
  • Opening a business bank account
  • Issuing dividend vouchers
  • Issuing share certificates to shareholders
  • Other communication with shareholders

If you have a business in form of either a Limited or Limited Liability Partnerships, you should make it sure that you have registered the same with Companies House. Once your registration is through, Companies House will allocate Company Registration Number to your company, which is how the government identifies and verifies legal presence of your company as an incorporated unit and it is printed on the Certificate of Incorporation and other relevant documents issued by the Companies House.

This is a mandatory step and it helps you to do your business without any hassle. Although it involves a lot of process in registering the company, however you can save yourself from the trouble by hiring/outsourcing services of an experienced professionals who have years of experience in providing company registration services.

You need Company Registration Number on various occasions and it is very important to save this number for future use. However, in case you are not able to find it, you can find it on the documents/correspondence you receive from the Companies House/ HMRC.

How DNS Accountants can help with CRN

DNS Accountants provides fixed fee taxation and accountancy packages for contractors, private limited companies, small-business owners, and public limited companies, and freelancers. Our team prides itself on being our clients ideal taxation and accounting partner in and around the UK and provides world-case accountancy advice and knowledge. Our services for company with regards to CRN include:

  • Adding or removing a company director or secretary
  • Changing the details of directors and secretaries
  • Changing company name
  • Changing registered office or SAIL address
  • Filing annual accounts
  • Filing tax returns
  • Filing or paying corporation tax
  • Registering for business taxes

Additional services include:

  • Dedicated accountant with direct telephone number and email address
  • Completion of any personal taxation returns; advice on VAT returns and filings; compute and advice on PAYE payments
  • Standard bookkeeping service and access to our online accounting solution, Nomisma
  • Handling correspondence with HM Revenue and Customs (HMRC)
  • Company formation formalities at Companies House and opening a customer bank account
  • Regular tax advice throughout the year

Also See: Polish Speaking Accountants or Polish Accountants

Also See: Romanian Speaking Accountants or Romanian Accountants

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About the author
Blog Author

Sumit Agarwal
Sumit Agarwal (ACMA ACA India), the Managing partner of dns accountants is a highly respected accountant with expertise in helping owner-managed businesses.

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About the author
Blog Author

Sumit Agarwal
Sumit Agarwal (ACMA ACA India), the Managing partner of dns accountants is a highly respected accountant with expertise in helping owner-managed businesses.


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