When setting up a business in Hong Kong, understanding the difference between a Business Registration Number (BRN) and a Company Registration Number (CRN) is essential. While they sound similar, they serve distinct purposes. These numbers are crucial for legal and administrative purposes. In this article, we’ll break down the key differences, their purposes, and why they matter for your business.
Content Outline
Key Takeaways
BRN is issued by the Inland Revenue Department (IRD) for tax compliance and is mandatory for all businesses.
CRN is issued by the Companies Registry for legal identification and is required for limited companies.
BRN is an 8-digit number requiring renewal, while CRN is permanent and does not need renewal.
Both numbers are essential for legal, tax, and administrative purposes in Hong Kong.
FastLane can help streamline the process of obtaining and managing your BRN and CRN.
What is a Business Registration Number (BRN)?
A Business Registration Number (BRN) is issued by the Inland Revenue Department (IRD) when you register your business. It is mandatory for all businesses operating in Hong Kong, whether they are sole proprietorships, partnerships, or limited companies.
Key Features of a BRN:
- Purpose: Used for tax identification and compliance.
- Format: An 8-digit number.
- Validity: Must be renewed annually or every three years, depending on your registration.
Every business, regardless of its structure, must display its BRN on official documents, invoices, and signage.
Read more: Business Registration Number Hong Kong Guide 2025
What is a Company Registration Number (CRN)?
A Company Registration Number (CRN) is issued by the Companies Registry when you incorporate a limited company. It uniquely identifies your company in the official registry.
Key Features of a CRN:
- Purpose: Used for legal identification and tracking company records.
- Format: A unique number assigned during incorporation.
- Validity: Permanent and does not require renewal.
The CRN is essential for legal and administrative processes, such as filing annual returns or updating company details.
Key Differences Between BRN and CRN
| Aspect | BRN | CRN |
| Issuing Authority | Inland Revenue Department (IRD) | Companies Registry |
| Applicability | All business types | Limited companies only |
| Purpose | Tax identification and compliance | Legal identification and record-keeping |
| Format | 8-digit number | Unique number |
| Renewal | Annual or triennial renewal | No renewal required |
Unique Business Identifier
Starting from 27 December 2023, your Company Number / CR Number / Company Registration Number will be replaced by the captioned 8-digit Business Registration Number (“BRN”) as the unique business identifier (“UBI“) of your company. The BRN as UBI will be used for filing specified forms and documents with the Companies Registry and for communication with government departments and businesses.
Read more How does Unique Business Identifier (UBI) impact HK companies?
Why Are BRN and CRN Important?
Both numbers are critical for different aspects of your business:
- BRN: Ensures compliance with tax regulations and allows your business to operate legally.
- CRN: Establishes your company’s legal identity and is required for formal transactions, such as opening a bank account or signing contracts.
When Do You Need These Numbers?
- BRN: Required when filing tax returns, opening a business bank account, or applying for licenses and permits.
- CRN: Essential for submitting annual returns, updating company information, or appointing directors and shareholders.
| Business Function | Business Registration Number (BRN) | Company Registration Number (CRN) |
| Tax Returns | Required | Not Required |
| Opening Bank Accounts | Required | Required |
| Government Dealings | Required | Not Required |
| Signing Contracts | Not Required | Required |
| Leasing Office Space | Required | Required |
| Filing Annual Returns | Not Required | Required |
How to Obtain Your BRN and CRN
- For BRN: When you register your business with the IRD, you’ll receive your BRN along with the Business Registration Certificate.
- For CRN: Upon incorporating your company with the Companies Registry, your CRN will be issued as part of the Certificate of Incorporation.
How to Find Your BRN and CRN?
- BRN: Look for the 8-digit number on your Business Registration Certificate issued by the IRD.
- CRN: This is the unique identifier on your Certificate of Incorporation issued by the Companies Registry.
If you’re unsure about the process, our team at FastLane can assist you with both business registration and company incorporation. Contact us today for expert guidance.
Common Mistakes to Avoid
- Using the wrong number: Businesses often confuse BRN with CRN. Ensure you’re referencing the correct one based on your task.
- Failing to renew certificates: Both the Business Registration Certificate and the Company Incorporation documents need timely renewal to avoid penalties.
Conclusion
Understanding the differences between the Business Registration Number (BRN) and the Company Registration Number (CRN) is essential for compliance and smooth business operations in Hong Kong. If you’re unsure which number to use or need help with your business registration, seeking professional advice can save you time and effort.
FAQs About BRN and CRN
1. Do I need both a BRN and a CRN?
Yes, if you’re operating a limited company. Sole proprietorships and partnerships only require a BRN.
2. Can I use my BRN instead of a CRN?
No. The BRN is for tax purposes, while the CRN is for legal identification. Both are required for limited companies.
3. How do I renew my BRN?
You can renew your BRN online through the IRD e-Services Portal or by submitting the renewal form in person.
Check out some of our other articles that might pique your interest:
- How To Obtain A Business Registration Certificate?
- 7 Things to Consider When Starting a Hong Kong Company
- Next Step After Business Formation – Documents & Licenses
Simplify Your Business Setup with FastLane
Navigating the complexities of business registration and company incorporation can be challenging. At FastLane, we specialize in helping entrepreneurs and businesses streamline the process. From obtaining your BRN and CRN to ensuring compliance, we’ve got you covered.
Ready to get started? Contact us today for a free consultation!
