Company Registration Number (CRN) Vs VAT, EORI, And UTR Numbers

Company Registration Number (CRN) A unique number assigned by Companies House when a UK company or applicable overseas company registration is created. The CRN identifies the legal entity on the UK company register and is separate from tax or customs identifiers that serve different regulatory purposes.

Many logistics and finance professionals conflate the CRN with other numeric identifiers used in trade and taxation. While the CRN ties a business to Companies House records, numbers such as VAT, EORI and UTR relate to tax and customs functions and are issued by HM Revenue & Customs (HMRC) or customs authorities. Knowing which number to request and where to verify it reduces onboarding friction and prevents incorrect paperwork during shipping or invoicing.

How The Identifiers Differ

The issuing body, legal purpose, and where each identifier is used are the principal differences. The CRN is a statutory company register identifier from Companies House. The VAT number is for value‑added tax charges and returns. The EORI number is for customs declarations and is required for import/export. The UTR (Unique Taxpayer Reference) is used by HMRC for corporation tax and self‑assessment records.

• Issuer: CRN — Companies House; VAT/EORI/UTR — HMRC (or customs authority for EORI).
• Purpose: CRN — company identity on the public register; VAT — tax on goods/services; EORI — customs processing; UTR — tax account reference.
• Visibility: CRN is public; VAT and UTR are sensitive tax identifiers and should be handled with appropriate data protection controls; EORI is often public for trade partners.

When Each Identifier Is Required

Matching identifiers to tasks clarifies what to collect during onboarding. Use the CRN for legal verification and contract precision. Request a VAT number when the supplier/customer will charge or reclaim VAT. Ask for an EORI number before cross‑border movement of goods. Use UTRs when dealing with corporation tax matters or HMRC correspondence.

• Contracts and legal checks: Use CRN to ensure the right legal entity is named.
• Invoicing and tax: Use VAT number for VAT‑charged invoices; retain UTR for tax filings.
• Customs and shipping: Use EORI on customs declarations and export paperwork.

Verification Sources And Processes

Different authorities provide verification tools. Verify CRNs on the Companies House register. Use HMRC services to check VAT numbers (through the EU VIES for cross‑border VAT validation where applicable or HMRC for domestic checks) and to confirm UTRs via secure channels. EORI numbers can be verified through HMRC’s EORI services or by checking the party’s customs agent records.

• CRN verification: Companies House public search or API.
• VAT checks: HMRC verification services and VIES where relevant.
• EORI verification: HMRC EORI registration confirmation.

Practical Risks From Mixing Up Identifiers

Using the wrong identifier on paperwork can lead to customs delays, rejected invoices, incorrect tax treatment, and compliance failures. For example, placing a CRN where an EORI should appear on a customs declaration will not satisfy customs authorities and can delay clearance. Similarly, billing a VAT‑registered customer without a valid VAT number may create downstream reconciliation problems.

Example: Preparing Export Documents

A US importer contracting with a UK exporter should collect the exporter’s CRN for contractual confirmation, the exporter’s EORI for customs declarations, and the exporter’s VAT number if the transaction involves VAT accounting. The warehouse prepping goods for export ensures the customs paperwork includes the correct EORI and that invoices display the VAT number where required; it records the CRN in the customer master for audit trails.

Practical Tips For Operations Teams

• Collect all relevant numbers: Ask for CRN, VAT, EORI and UTR (as appropriate) during onboarding and document which processes require each one.
• Protect sensitive IDs: Treat VAT and UTRs as sensitive tax data in line with data protection rules; restrict access and logging.
• Automate checks: Integrate Companies House and HMRC verification into ERP or WMS to reduce manual errors.

In short, the Company Registration Number (CRN) identifies the company on the UK statutory register and is distinct from VAT, EORI and UTR numbers issued by HMRC. Each identifier serves a specific regulatory or commercial purpose; collecting and verifying the correct one for the task avoids customs delays, tax errors and contract ambiguity.