421000Construction of civil engineering projects
土木工程項目的修建
IRD business nature helper
Business Registration wording for this activity
The business nature on your Business Registration Certificate is limited to 60 English characters printed over two 30-character lines, and 30 Chinese characters. Test your wording below.
42/60 charactersFits the certificate
9/30 characters
Certificate preview
Business Registration Certificate
商業登記證 (layout preview)
Nature of business 業務性質
The IRD prints the English business nature across two lines of 30 characters. Text that cannot break cleanly at a word boundary gets wrapped or truncated on the printed certificate.
Compliance and incorporation playbook
Licences and regulatory approvals
No sector-specific licence is mapped to this classification. Standard incorporation, business registration and the general compliance calendar below still apply, and premises-based or product-based permits can apply case by case. Emerhub confirms the exact licensing position during scoping.
Offshore profits claim feasibility
LowConstruction of civil engineering projects typically requires physical presence in Hong Kong for project execution. Contracts are usually negotiated with local clients and involve compliance with local regulations and standards, making it difficult to qualify for offshore treatment.
Profits Tax Return deadlines under the Block Extension Scheme
With Emerhub as your tax representative, the filing deadline for the Profits Tax Return (BIR51) extends far beyond the standard one month, depending on your accounting year-end. A 31 December year-end extends the filing to August of the following year.
| Year-end | IRD code | Without representative | With Emerhub as tax rep |
|---|---|---|---|
| 1 April to 30 November | N | Within 1 month of return issue | No block extension: early May of the following year |
| 1 December to 31 December | D | Within 1 month of return issue | Mid-August of the following year |
| 1 January to 31 March | M | Within 1 month of return issue | Mid-November of the same year |
Inland Revenue Department, Block Extension SchemeVerified 2026-07-14
Standing compliance calendar
These obligations apply to every Hong Kong company regardless of industry. Each fact links to its primary government source.
Two-tiered profits tax
Incorporated businesses pay 8.25% profits tax on the first HKD 2 million of assessable profits and 16.5% on the remainder. Only one entity within a group can elect the two-tiered rates.
Inland Revenue DepartmentVerified 2026-07-14
Annual Return (Form NAR1)
A private company delivers its Annual Return to the Companies Registry within 42 days of each anniversary of incorporation. Emerhub prepares and files the NAR1 as part of company secretary service, so the deadline never reaches your calendar.
Companies RegistryVerified 2026-07-14
Business Registration Certificate renewal
Every business carries a valid Business Registration Certificate from the Inland Revenue Department, renewed on a 1-year or 3-year cycle. Emerhub handles the renewal filing and keeps the certificate current.
Inland Revenue DepartmentVerified 2026-07-14
Significant Controllers Register
Every Hong Kong company keeps a Significant Controllers Register identifying persons with more than 25% ownership or control, available for law-enforcement inspection at its registered office. A designated representative must be appointed; Emerhub acts as designated representative for client companies.
Companies RegistryVerified 2026-07-14
Company secretary requirement
Every Hong Kong company appoints a company secretary resident in Hong Kong. A corporate secretary must hold a Trust or Company Service Provider (TCSP) licence. Emerhub is a licensed TCSP and acts as company secretary for client companies.
Companies RegistryVerified 2026-07-14
MPF enrolment for employees
Employers enrol every Hong Kong employee aged 18 to 64 employed for 60 days or more in an MPF scheme. Employer and employee each contribute 5% of relevant income, capped at HKD 1,500 per month each. Emerhub administers MPF enrolment and monthly contributions under its payroll service.
Mandatory Provident Fund Schemes AuthorityVerified 2026-07-14
Annual audit with SME reporting exemption
Every Hong Kong company files audited financial statements; there is no small-company audit exemption as in Singapore. Small private companies meeting any two of revenue at or below HKD 100 million, assets at or below HKD 100 million, or 100 or fewer employees qualify for the reporting exemption and prepare simplified accounts under the SME Financial Reporting Standard, which lowers audit preparation cost. Emerhub structures client accounts under the reporting exemption wherever the criteria are met.
Companies Ordinance (Cap. 622), s.359Verified 2026-07-14
Industry statistics
How large is this sector in Hong Kong?
Official figures are compiled at industry level. These are for Construction (F), the industry this classification belongs to.
27,200
Establishments (2023)
195,800
Persons engaged (2023)
C&SD Annual Survey of Economic Activities 2023Verified 2026-07-14
This classification includes
- airfield construction 機場建造工程
- athletic field construction 運動場建造工程
- breakwater construction 防波堤建造工程
- bridge construction 橋樑建造工程
- chimney construction 煙建造工程
- dam construction 堤壩建造工程
- drainage construction 排水系統建造工程
- electric railway roadbed construction 電氣化鐵路路基建造工程
- flyovers construction 天橋建造工程
- gardens and parks construction 花園及公園建造工程
- harbour construction 海港設施建造工程
- highway construction 高速公路建造工程
- lighthouse construction 燈塔建造工程
- pier construction 小型碼頭建造工程
- refuse treatment plant construction 廢物處理廠建造工程
- reservoir construction 水塘建造工程
- road construction 道路建造工程
- sewer treatment plant construction 污水處理廠建造工程
- slope projection 斜坡鞏固工程
- subway construction 地下通道建造工程
- swimming pool construction 游泳池建造工程
- tunnel construction 隧道建造工程
- utility plants construction for supply of communication services 通訊服務公用事業設施建造工程
- utility plants construction for supply of electricity 電力服務公用事業設施建造工程
- utility plants construction for supply of gas 燃氣服務公用事業設施建造工程
- utility plants construction for supply of water 水務公用事業設施建造工程
- wharf construction 大型碼頭建造工程
Frequently asked questions
Do I need a license for construction?
Yes, construction activities in Hong Kong require specific licenses and permits depending on the project type.
What are the tax implications for construction companies?
Construction companies are subject to Hong Kong's profits tax on income generated within the territory.
Can I operate without a physical office?
A physical office is typically required for construction companies to manage projects and comply with local regulations.
Incorporate in Hong Kong
Starting a construction of civil engineering projects business in Hong Kong?
Emerhub incorporates your company, registers the business nature above with the IRD, files every licence application, and runs your company secretary and compliance calendar. You provide the documents; Emerhub handles every government interaction.
Start incorporation with Emerhub