
What is the nature of business for the business registration certificate? How to fill out CORP, how to change it, and points to note (with form tutorial)
1. When the limited company is established, the BR business nature is preset as "CORP" (representing a corporation, and the actual business has not yet been declared). After the company starts operating, it must 2. fill out the IRBR200 to notify the tax bureau within 1 month, declaring the actual nature of the business.3. When the limited company is established, the BR business nature is preset as "CORP", and after starting operations, it must fill out the IRBR200 to update within 1 month.
- 4. Failure to change "CORP" may result in fines and affect bank account opening reviews.
- 5. After commencing operations, if the business nature needs to be changed, fill out the IRBR193 and submit it to the Business Registration Office.
- 6. Regulated industries must first obtain the relevant licenses before processing changes to the business nature.
- 7. What is the "nature of business" on the business registration certificate?
8. The business registration certificate (BR) application form has a section for "Nature of Business," which is the official description of the company's main business activities, allowing the tax bureau to understand the company's actual operating model.
9. The nature of business is not filled out arbitrarily; the tax bureau provides a "coding and description table for nature of business," from which applicants must select the category that best describes the company's business activities.
10. What does "CORP" mean?
Extended Reading:Complete guide to Hong Kong Business Registration Certificate: definitions, fees, and differences with CI
11. "CORP" is an abbreviation for "Corporation." When a company is established in Hong Kong in this form, the tax bureau will preset the business nature as "CORP" on the BR, indicating that the entity is an independent legal person, but
12. has not yet declared specific business activities.limited company13. "CORP" is not the final state of the business nature; it is merely the default value at the time of the limited company's establishment, indicating that the company's legal identity has been established but the business has not yet started. Once the company begins actual operations, "CORP" needs to be updated to a specific business description.14. Unlimited companies (sole proprietorships or partnerships) will not。
15. display "CORP" because unlimited companies are legally considered one with the owner or partners and do not belong to the corporate form. "CORP" will only appear on the BR of limited companies.
Longfeng reminds you16. Does "CORP" have to be changed? 17. Yes, the company must change it after starting operations.Display "CORP" because a limited company is legally considered one with its owner or partners and does not belong to the corporate form. "CORP" will only appear on the BR of a limited company.
Does CORP have to be changed?
Yes, it must be changed after the company starts operating. According to the regulations of the Hong Kong Inland Revenue Department, after a company starts actual operations, it must 2. fill out the IRBR200 to notify the tax bureau within 1 month, declaring the actual nature of the business.submit a change notification to the Business Registration Office to declare the actual nature of the company's business.
There are three consequences of not making changes:
① Facing fines or criminal penalties
The Inland Revenue Department will strictly handle non-compliance withthe Business Registration Ordinance,and failure to declare on time may result in fines.
② Affecting bank account opening
When reviewing account opening applications, banks will examine the nature of the business on the BR. "CORP" indicates that the company has not yet started operations, and the bank may refuse the account opening application based on this or request additional explanations, delaying the account opening process.
③ Non-compliance of information
If the nature of the business on the BR does not match the actual operations, it may raise questions during future applications for government funding (such as the BUD Fund) or participation in tenders.
First declaration of business nature: Fill out IRBR200
After the establishment of the limited company, the first declaration of business commencement requires filling outthe Corporation Business Commencement Notification (IRBR200).。
Operating steps
Step 1: Inquiry of business nature codes Go to the Inland Revenue Department's website, download the "Business Nature Codes and Descriptions" form, and find the code and description that best describes the company's business.
Step 2: Fill out IRBR200 In the business nature field of the form, enter the corresponding business code and description, and fill in the business commencement date.
For detailed information, please refer to Taxation Bureau: Business Nature Coding and Description Form

Step 3: Submit to the Business Registration Office Options:
- Submit in person: Kai Tak Taxation Center, 2nd Floor Business Registration Office, processing time about 1–2 hours
- Mail: Mail to P.O. Box 29015, Kowloon Coordination Road Post Office, processing time about 4–7 working days
Note: Must be submitted after the business starts 2. fill out the IRBR200 to notify the tax bureau within 1 month, declaring the actual nature of the business., late submissions will incur corresponding legal responsibilities.
Change of business nature after commencement: Fill out IRBR193
If the company has started operations and needs to change the business nature registered on the BR (including changing from "CORP" to the actual business description), it must fill out IRBR193。
It can also be submitted in person or mailed to the Business Registration Office, with processing time the same as IRBR200 (in person about 1–2 hours; by mail about 4–7 working days).
Three points to note when filling out the business nature

① Consistent with actual business
The Taxation Bureau will review the application, and if the description of the business nature is obviously inconsistent with actual operations, it may trigger an investigation. When choosing, base it on the company'smain source of incomebusiness activities.
② Pay attention to licensing requirements for regulated industries
Certain business natures involve regulated industries and require additional licenses to operate legally, such as:
- Catering → Food Business License
- Travel Agency → Travel Agent License
- Financial Services → Relevant licenses from the Securities and Futures Commission or the Monetary Authority
It is recommended to first confirm the licensing requirements, then select the business nature description to avoid needing to change it again in the future.
③ Reserve processing time in advance
If the change in business nature involves banks, contracts, or other commercial activities, it is advisable to submit 1-2 weeks in advance to allow time for the tax bureau to process, avoiding any impact on business operations.
Frequently Asked Questions
Will an unlimited company's BR have "CORP"?
No. "CORP" only applies to limited companies. When applying for a BR for an unlimited company (sole proprietorship or partnership), the business nature field must initially be filled with a specific description of business activities, and there is no default value of "CORP."
Can I continue to operate after submitting a change application?
Yes. Changing the business nature is merely updating registration information; as long as the company was legally operating before submitting the application and the new business nature does not involve any necessary licenses that have not been obtained, normal operations can continue.
If the business involves multiple industries, how should the business nature be filled out?
Fill it out based on the companyMain business(i.e., main source of income). If it indeed involves multiple main businesses, multiple business nature descriptions can be filled out, but it is advisable to consult a professional advisor to confirm the most appropriate way to fill it out, avoiding overly vague descriptions that may trigger inquiries from the tax bureau.
Conclusion
If you have any questions about filling out the business nature or the commercial registration process, feel free to contact Longfeng Business Consultants, where professionals will assist you in confirming the most suitable business description and processing procedures. Immediatelyto book a free consultation。
Extended Reading
Top 10 Must-Know Common Questions about Business Registration Certificates
