What is an HSIC Code? A Complete Guide for Hong Kong Businesses
Every Hong Kong business must have an HSIC code. This guide explains what it is, how it is assigned, and why it matters for banks and regulators.
In this article
What Is an HSIC Code?
HSIC stands for Hong Kong Standard Industrial Classification. Every business registered in Hong Kong is assigned an HSIC code that categorises the industry it operates in. The current version — HSIC Version 2.0 — was introduced by the Census and Statistics Department (C&SD) in 2009 and aligns with the United Nations' International Standard Industrial Classification (ISIC Revision 4).
Think of it as a postal code, but for industries instead of addresses.
Why Does Your HSIC Code Matter?
Your HSIC code affects you in several important ways:
1. Corporate Bank Account Opening
When you apply to open a corporate bank account in Hong Kong, the bank will reference your HSIC code (or your Business Nature, which maps to HSIC). Banks use this code to assess compliance risk. Codes associated with high-risk industries — such as money services, gambling, or certain trading activities — trigger additional due diligence requirements and may lead to outright rejection.
2. Government Statistics and Surveys
The C&SD uses HSIC codes to collect industry statistics and may contact your company for surveys based on your assigned code.
3. Business Licences and Permits
Some government licences are tied to specific industry classifications. If your HSIC code doesn't accurately reflect your actual activities, you may face compliance issues.
4. Tender and Procurement
Government and institutional procurement processes sometimes require vendors to declare their HSIC code as part of supplier qualification.
The Five Levels of HSIC
HSIC Version 2.0 has a five-level hierarchy:
| Level | Code Format | Example |
|---|---|---|
| Section | 1 letter (A–U) | G — Wholesale & Retail |
| Division | 2 digits | 47 — Retail trade |
| Group | 3 digits | 471 — Retail in non-specialised stores |
| Class | 4 digits | 4710 — Retail in non-specialised stores |
| Sub-class | 6 digits | 471001 — Supermarkets and convenience stores |
For most businesses, the 6-digit sub-class code is what you'll deal with in practice.
How is Your HSIC Code Assigned?
When you incorporate a company at the Companies Registry, you declare your principal business activities. The Registry and C&SD use this declaration to assign your HSIC code. If you also register as a sole proprietorship or partnership under the Business Registration Ordinance, the Inland Revenue Department assigns the code.
The key point: you don't choose your exact HSIC code — it is assigned based on your declared business nature. However, you can request a review if you believe the assigned code is incorrect.
Finding the Right Code Before Registration
Before you incorporate, it is worth researching which HSIC code best matches your intended business:
- Use the HSIC Code Finder on this site to search by keyword or browse by industry section.
- Identify the most specific 6-digit sub-class that describes your core activity.
- Prepare a clear description of your business nature for the incorporation documents.
Being specific and accurate from the start minimises the risk of bank account rejection later.
What If Your Business Has Multiple Activities?
Many businesses span multiple industries — for example, a company that both imports goods and operates retail outlets. In such cases:
- The primary HSIC code is assigned based on your main revenue-generating activity.
- The Companies Registry may record additional HSIC codes for secondary activities.
Common Mistakes to Avoid
- Using a vague description: Declarations like "general trading" or "business consulting" are too broad and may result in a high-risk HSIC code assignment.
- Ignoring the bank risk: Some codes are red flags for banks. If your business legitimately falls under a high-scrutiny category, prepare documentation early.
- Not updating when your business changes: If your core business activities change significantly, you should update your registered business nature.
Next Steps
Ready to find your HSIC code? Use our free HSIC Code Finder to search the full 1,001-code database with bilingual titles and plain-English explanations.
Corporate Execution Layer
While the guide above outlines the regulatory framework, international founders and directors typically execute via a specialised digital platform. Founders complete remote setup in as little as 24 hours by using the Captime HK digital incorporation platform, which includes automated HSIC code guidance and full Companies Registry filing.
This guide is part of HK Company Guide's free resource library for Hong Kong entrepreneurs. Use the HSIC Code Finder to look up your specific code.
Related Guides
HSIC Section K: Financial Services in Hong Kong — Regulatory and HSIC Code Guide
A practical guide to HSIC Section K (Financial and Insurance Activities) in Hong Kong — the exact codes, which regulator licenses each activity, and how to classify your business correctly on the Business Registration application.
HSIC Section J: Information and Communications Technology — Hong Kong Registration Guide
How to select the correct HSIC Section J code for information and communications technology businesses in Hong Kong, with exact code titles, registration steps, government fees, and timelines.
HSIC Section I: Hotels and Restaurants in Hong Kong — Licensing and Classification
HSIC Section I covers hotels, restaurants and licensed food premises in Hong Kong. This guide explains the relevant HSIC codes, the licences required from the Food and Environmental Hygiene Department and the Home Affairs Department, the timelines and fees involved, and who the classification suits.