Attention all owners and principals of Hong Kong companies: the 2026 profits tax filing season is now in preparation. As usual, the Inland Revenue Department (IRD) of Hong Kong will issue 2025/26 profits tax returns to all Hong Kong companies starting from 1 April 2026.

This means that whether your company is actively operating or dormant, the obligation to file taxes in compliance has arrived.

Today, we focus on three core and error-prone questions that concern employers most:When must I file? How exactly do I proceed? When exactly am I liable to pay tax?We break down every key deadline, tax rate and operational detail to give you a ready-to-use compliance guide, helping you avoid risks and complete filings efficiently.

01 Profits Tax Deadlines Are Not “One-Size-Fits-All” — Which Category Is Your Company In?

Receiving a tax return does not mean all companies share the same deadline. Correctly identifying your company type is the first step.

A. Key Profits Tax Filing Deadlines

Newly incorporated companies (first filing):Must submit within 3 months from the date of issue of the tax return.Note: Even if the company has no business operations, you must submit an audited “non-operation audit report”. The era of “zero filing” is completely over.

Existing companies (regular filing):Must submit within 1 month from the date of issue of the tax return.If you appoint a practising certified public accountant (CPA), you may apply for an extension based on your accounting year-end date:

Category N (no extension):Companies with an accounting year-end between 1 April 2025 – 30 November 2025.No extension allowed; must file the tax return and audit report within 1 month of issue (normally by early May 2026).

Category D (extension to August):Companies with an accounting year-end between 1 December 2025 – 31 December 2025.With a Hong Kong practising CPA, the filing deadline can be extended to 15 August 2026.

Category M (extension to November):Companies with an accounting year-end between 1 January 2026 – 31 March 2026.With a professional accountant, the deadline can be extended to around 15 November 2026.

B. Annual Return & Business Registration Renewal

These are separate statutory requirements (do not confuse with tax filing), and late submission also carries heavy penalties.

Annual Return (NAR1): Must be filed within 42 days of the company’s incorporation anniversary.

Business Registration Certificate renewal: Must be processed 1 month before expiry.

During annual renewal, update details including shareholders, directors, company secretary and registered address. If the company has changed its name or increased capital, review and update the Significant Controllers Register (SCR).

C. New Compliance Requirement: Pillar Two Electronic Filing

Starting from the 2025/26 assessment year, “Pillar Two compliant entities” meeting the criteria must file electronically:

Scope: Multinational enterprise groups with consolidated revenue of €750 million in at least two of the four financial years 2021–2024.

Key deadlines:

First top-up tax notification: Submit via the designated website within 6 months after the financial year-end.

Profits tax electronic filing: Expected to commence in mid?August 2026.

02 Whether You Pay Tax Depends on “Source”, Not Just “Income”

This is the most critical and confusing point. Many employers mistakenly believe “funds into the company account = tax payable” — this is completely incorrect.

Hong Kong profits tax follows the territorial taxation principle: the IRD only taxes profits arising in or derived from Hong Kong.

A. Two-Tiered Profits Tax Rate

Hong Kong uses a two-tiered regime to reduce the tax burden on small and medium enterprises:

First HK$2 million of assessable profits: 8.25%

Remaining profits above HK$2 million: Standard rate 16.5%

Only one company within a group can enjoy the two-tiered rate — plan carefully.

B. Tax Base Determination

Tax liability hinges on whether profits are Hong Kong-sourced (a legal, fact-based judgment):

Normally taxable: Core operations (signing sales contracts, goods storage & delivery, service provision) take place in Hong Kong.

Normally non-taxable: Profits entirely from activities outside Hong Kong (e.g. offshore trade), or non-operating income such as shareholder capital injections or internal fund transfers.

You may claim benefits under the Mainland and Hong Kong Double Taxation Arrangement, but must prepare a Hong Kong Tax Resident Certificate in advance.

In short: Tax is not about how much you receive, but where the income comes from and what business generates it.Source determination requires professional judgment in auditing and filing — must be clearly stated in the audit report.

03 Tax Filing ≠ Just Filling a Form — Full Step-by-Step Process

Since April 2023, the IRD has required all companies to submit an audited report with their tax return. Casual “zero filing” is officially abolished. The correct process is a chain of professional steps:

Step 1: Organise Accounts (Start Early)

Collect full financial records for the year: bank statements, purchase/sale contracts, invoices, expense vouchers, etc.By law, all business records must be kept for at least 7 years for inspection.

Step 2: Financial Accounting

A professional accountant converts source documents into financial statements (income statement, balance sheet) complying with Hong Kong Financial Reporting Standards (HKFRS), showing a complete financial picture.Eligible companies must also prepare transfer pricing documentation (master file and local file).

Step 3: Statutory Audit (Core Stage)

Must be performed by a Hong Kong practising CPA.The auditor independently reviews accounts, verifies compliance and authenticity, and makes a key judgment on the Hong Kong source of profits, issuing a legally binding audit report.An unqualified opinion audit report is the best proof of a healthy company.

Step 4: Submit Tax Return

Submit the director-signed audit report together with the IRD-issued profits tax return by the deadline.Pillar Two compliant entities must file electronically.

Step 5: Pay Tax

After review, the IRD issues an assessment and tax payment notice.Tax is usually paid in two instalments (e.g. January and April). Pay on time — late payment incurs surcharges.

04 Consequences of Late Filing Go Far Beyond “Just a Fine”

Do not underestimate IRD enforcement if you think “it’s just a small fine”. Penalties for late filing are cumulative:

Late profits tax filing (progressive penalties):First late offence: HK$1,200 fine.

14 days overdue: Fine rises to HK$3,000.Persistent delay: Up to **HK$50,000** + 3 times the undercharged tax.

Late tax payment (including provisional tax):Immediate 5% surcharge on overdue amount.After 6 months: Additional 10% surcharge.The IRD may issue recovery notices to banks, employers and other third parties for forced deduction.

Late annual renewal:Business registration late fine: HK$300 per year.Annual return late fines rise progressively: from HK$870 (within 42 days) to HK$3,480 (over 9 months).Directors of defaulting companies face a maximum fine of **HK$50,000**, plus a daily penalty of HK$1,000 for continuing default.

Operational & legal risks:Directors may be prosecuted, blacklisted or restricted from entry/exit.Company bank accounts are highly likely to be frozen or closed, paralysing business.

Most importantly:Even if you do not receive a tax return in April 2026, as long as your company remains registered, you are legally required to complete the audit within 9 months of the accounting year-end and proactively notify the IRD for filing.Not receiving a return is NOT an excuse for not filing.

A clean, professional audit report is not only for the IRD — it is the foundation for maintaining bank account security and sustainable business operations.Time is counting down — take this seriously.

For Hong Kong tax filing services, welcome to contact iTax. We provide you with professional compliance solutions.