Every year on April 1, the Hong Kong Inland Revenue Department issues Profit Tax Return Forms (BIR51) to all businesses in Hong Kong, marking the official start of a new tax filing season. For cross-border sellers, foreign trade enterprises, and investment holding companies registered in Hong Kong, filing the Hong Kong profits tax return is a compliance obligation that ”cannot afford to have any errors”—late filing may result in a fine of up to 10,000 Hong Kong dollars and a surcharge of 10% on the additional tax assessed, and repeated late filings may even lead to a court summons. The 2026 tax filing season is unique in two respects: First, the two-tier profits tax system (8.25% on the first 2 million in profits and 16.5% on amounts exceeding that threshold) has been fully implemented, significantly reducing the tax burden on businesses; on the other hand, the Inland Revenue Department has continued to tighten its requirements for audit reports, further limiting the scope for ”zero-return” filings and imposing stricter scrutiny on offshore exemption reviews. A non-compliant audit report may not only result in the return being rejected but could also trigger a full-scale tax investigation.

Filing taxes for a Hong Kong company is not as simple as ”filling out a form”; it involves multiple steps, including audit reports, profits tax calculations, applications for offshore exemptions, and salary tax filings. Qicaiying Group specializes in providing domestic and international company registration services in Shenzhen, Guangzhou, Shanghai, Beijing, Hangzhou, Hong Kong, the United States, Japan, South Korea, Southeast Asia, Singapore, the British Virgin Islands (BVI), the Cayman Islands, and other locations, as well as corporate annual reviews and audits, bookkeeping and tax filing, tax compliance, information changes, bank account openings, ODI filings, FDI filings, and other corporate services; Hong Kong residency applications, renewals, and permanent residency services; Singapore EP application services; as well as cross-border e-commerce support and managed operations—all as part of our one-stop service. If you have any needs or are interested, please feel free to contact me at any time (Consultation Hotline: 18676749275, add WeChat: Qicaiyingjituan).

I. Two-Tier Profit Tax System: Latest Tax Rates and Calculations for 2026

By 2026, Hong Kong’s two-tier profits tax system had been fully implemented. First introduced in 2018, this system has become one of the core features of Hong Kong’s tax system after several years of operation.

Tax Rate Structure: Hong Kong limited companies are subject to a two-tier profits tax rate: 8.25% on the first HKD 2 million of assessable profit, and 16.5% on the portion exceeding HKD 2 million. Take a company with an annual profit of 5 million HKD as an example: the first 2 million HKD is taxed at 8.25%, resulting in 165,000 HKD in tax; the remaining 3 million HKD is taxed at 16.5%, resulting in 495,000 HKD in tax, for a total of 660,000 HKD. If calculated at a flat rate of 16.5%, the tax liability would be HK$825,000; the two-tier system results in a savings of HK$165,000.

Restrictions on Affiliated Entities: The two-tier preferential tax rate applies only to one entity within an ”affiliated enterprise group.” If two or more affiliated enterprises (such as a parent company and its subsidiaries or sister companies) are eligible for the lower tax rate at the same time, only one may apply the 8.25% rate, while the others must pay the full tax at the 16.5% rate. When filing tax returns, enterprises must proactively declare whether any of their affiliated enterprises have opted to apply the lower tax rate.

Sole Proprietorships and Partnerships: The profits tax rates for sole proprietorships and partnerships also follow a two-tier system—the rate for the first HKD 2 million in profits is 7.5% (half that of limited liability companies), and 15% applies to amounts exceeding that threshold.

Differences from Other Taxes: Hong Kong applies the ”territorial source principle” for taxation—only profits arising in or derived from Hong Kong are subject to profits tax. Profits derived from outside Hong Kong (i.e., ”offshore profits”) may qualify for an offshore exemption, after which they are not subject to profits tax. This is a key feature that distinguishes Hong Kong’s tax system from that of the Mainland and other regions.

II. Annual Tax Filing Process: From the First Filing to Routine Filings

The tax filing cycle for Hong Kong companies differs from that in mainland China; it is based on the company’s fiscal year rather than the calendar year.

Initial Filing: For newly registered Hong Kong companies, the first profits tax return is typically issued 18 months after the company’s incorporation. This means that for a company incorporated in June 2024, the first tax return may be issued around December 2025. The filing window for the first return is one month from the date of issuance (the standard filing period is one month; an extension may be requested if an audit report is available).

Regular Filing: Each year, the tax authority will issue a profits tax return form, which the company must submit by the specified deadline. The deadline for regular filings depends on the company’s fiscal year-end:

• Companies with a fiscal year ending between April 1 and November 30: Submit within one month after the tax return is issued
• Companies with a fiscal year-end from December 1 through December 31: Submit within 3 months of receiving the tax return
• Companies with a fiscal year ending from January 1 to March 31: You may request an extension to submit your application by mid-May of the following year.

Documents Required for Tax Filing: A completed Profits Tax Return (BIR51), audited financial statements, tax calculation worksheets, and an audit report. All materials must be supported by an audit report signed by a practicing accountant in Hong Kong—this is a mandatory requirement under Hong Kong tax law for limited liability companies.

Consequences of Late Payment: A fine of HK$3,000–10,000 for the first late payment; A fine of HK$10,000–30,000 and a 10% surcharge on the reassessed tax amount for a second or subsequent late filing; severe late filings may result in a court summons, with a maximum fine of HK$100,000 and a 300% surcharge on the reassessed tax amount.

From preparing audit reports to calculating and filing profit tax returns, and from applying for extensions to applying for offshore exemptions, every aspect of tax filing for Hong Kong companies requires professional management. Qicaiying Group specializes in providing company registration services both domestically and internationally, including Shenzhen, Guangzhou, Shanghai, Beijing, Hangzhou, Hong Kong, the U.S., Japan, South Korea, Southeast Asia, Singapore, the British Virgin Islands (BVI), and the Cayman Islands. We also offer annual review and audit, bookkeeping and tax filing, tax compliance, corporate information changes, bank account opening, ODI filing, FDI filing, and other corporate services; Hong Kong residency application, renewal, and permanent residency services; Singapore EP application services; and cross-border e-commerce support and agency services. If you have any needs or are interested, please feel free to contact me at any time (Consultation Hotline: 18676749275, add WeChat: Qicaiyingjituan).

III. Audit Report Requirements and Exemption Conditions

Hong Kong’s Companies Ordinance requires all limited liability companies registered in Hong Kong to prepare financial statements annually and have them audited by a licensed accountant. The audit report is a mandatory attachment to the profits tax return.

Key Points of the Audit Report: An audit report includes the auditor’s opinion (unqualified opinion, qualified opinion, adverse opinion, or disclaimer of opinion), the statement of financial position (balance sheet), the statement of income (income statement), the statement of changes in equity, the statement of cash flows, and the notes to the financial statements. The tax authority accepts only an ”unqualified opinion”—if the auditor issues a qualified or adverse opinion, the tax authority may challenge the company’s financial records.

Documents Required for the Audit: Certificate of Incorporation, Business Registration Certificate, Articles of Incorporation, monthly bank statements (for all accounts for the entire year), sales invoices/contracts, purchase invoices/contracts, expense vouchers, payroll records, fixed asset inventory, the previous year’s audit report, board resolutions, etc. Inadequate preparation of materials is the most common cause of audit delays.

“Misconceptions About ”Zero Reporting”: Many business owners who have registered a Hong Kong company but have not actually operated it believe that ”if the company has no business activities, they can file a zero tax return.” In fact, filing a zero tax return (i.e., reporting zero income and zero expenses) applies only to companies that ”have never commenced business operations” or ”have ceased operations and have no assets or liabilities.” If a company has a bank account and there are financial transactions (even if they consist of shareholder capital contributions or bank fees), it cannot file a zero-report; instead, it must prepare financial statements and have them audited. If the Inland Revenue Department verifies that a company has filed a zero-report in violation of regulations, the company will be required to pay back taxes and face fines; in severe cases, it may face criminal prosecution.

Conditions for Audit Exemption: Under Section 359 of the Companies Ordinance, businesses that meet the criteria for a ”small company” may apply for an audit exemption. The criteria for a small company are: annual turnover not exceeding HK$100 million, total assets not exceeding HK$100 million, and no more than 50 employees—provided the company meets at least two of these criteria. However, it is important to note that even if a company meets the criteria for an audit exemption, it is still required to provide an audited financial statement if requested by the Inland Revenue Department. In practice, most companies choose to undergo an audit even if they qualify for the exemption, as audited financial statements play a crucial role in various scenarios, such as opening bank accounts, securing financing, and applying for visas.

IV. Application for Offshore Exemption: Four Conditions and the Chain of Evidence

The offshore exemption is one of the most attractive features of Hong Kong’s tax system. If a company’s profits are derived entirely from sources outside Hong Kong, it may apply for the offshore exemption, which exempts it from paying profits tax.

Four Application Requirements:

Condition 1: Business operations are conducted overseas. The company’s core business activities—including procurement, sales, negotiations, and contract signing—are all conducted outside Hong Kong. If the company has an office in Hong Kong or employees involved in business operations there, it would be difficult to meet this requirement.

Condition 2: The decision is made overseas. The company’s business decisions and management activities are conducted outside Hong Kong. The location where board meetings are held and the directors’ places of habitual residence are key factors in the tax authority’s review. If directors habitually reside in Hong Kong and make business decisions there, profits will be deemed to have been derived from Hong Kong.

Condition 3: The customer and supplier are located overseas. The company's customers and suppliers are all businesses or individuals located outside Hong Kong. If the company has local customers or suppliers in Hong Kong, the corresponding portion of its profits is not eligible for exemption.

Condition 4: No physical office in Hong Kong. The company does not have a physical office in Hong Kong (a registered address alone does not count), nor does it employ any local Hong Kong staff. The company may engage a Hong Kong corporate secretarial firm to provide a registered address and corporate secretarial services, but it may not conduct any actual business operations.

Chain of custody requirements: Applications for offshore exemptions require the submission of a complete chain of evidence, including but not limited to: passports and ID cards of directors and employees ( ID cards (proving place of habitual residence), business contracts (showing the place of signing and where business activities take place), bank statements (showing the location of counterparties), travel records (proving the frequency with which directors travel abroad to conduct business), office lease agreements (proving the overseas office address), and lists of suppliers and customers (showing their locations).

Application Process: Applications for offshore exemption are typically submitted 2–3 years after a company begins operations (the tax authority requires a certain operating history). After the application is submitted, the tax authority will conduct a review, which typically takes 6–18 months. Upon approval, the tax authority will issue an ”Offshore Exemption Approval Letter.” Thereafter, when filing annual tax returns, the company must indicate the nature of its profits as ”offshore profits” on the tax return and attach a copy of the approval letter.

Risk Tip: Offshore exemptions are not ”once-and-for-all.” The tax authorities have the right to re-examine the nature of a company’s profits at any time. If there are subsequent changes in the company’s operations—such as acquiring local Hong Kong clients or a director relocating to Hong Kong—the company must proactively report these changes to the tax authorities; otherwise, it may be subject to back taxes.

From Hong Kong corporate compliance accounting and the preparation of audit reports to profits tax returns and applications for offshore tax exemptions, Qicaiying Group provides professional end-to-end services. Qicaiying Group specializes in providing domestic and international company registration services in Shenzhen, Guangzhou, Shanghai, Beijing, Hangzhou, Hong Kong, the United States, Japan, South Korea, Southeast Asia, Singapore, the British Virgin Islands (BVI), the Cayman Islands, and other locations, as well as corporate annual review and auditing, bookkeeping and tax filing, tax compliance, information changes, bank account openings, ODI filings, FDI filings, and other corporate services; Hong Kong residency applications, renewals, and permanent residency services; Singapore EP application services; and cross-border e-commerce guidance and agency operations—all as part of our one-stop service. If you have any needs or are interested, please feel free to contact me at any time (Consultation Hotline: 18676749275, add WeChat: Qicaiyingjituan).

For Hong Kong companies, tax filing season is not just an annual ”routine task,” but rather a ”health check” for business compliance. From optimizing tax burdens under the two-tier profits tax system to the compliant preparation of audit reports and the planning of offshore tax exemption applications, every step requires the support of a professional team. Against the backdrop of increasingly stringent oversight by the tax authorities, stories of ”saving a little money only to suffer a big loss” play out year after year—choosing a professional financial and tax services partner is the best protection a company can have.