HK Tax Tools
Back to GuidesCompliance

Hong Kong Tax Filing Deadlines 2026

Important dates and deadlines for profits tax filing in Hong Kong. Know when to file your tax returns and avoid penalties.

Updated March 9, 2026
6 min read

Overview of Tax Filing in Hong Kong

The Inland Revenue Department (IRD) issues Profits Tax Returns annually to all registered businesses. Understanding the filing deadlines is crucial to avoid penalties and maintain good standing with the tax authorities.

When Are Tax Returns Issued?

The IRD typically issues Profits Tax Returns in early April each year. The exact issue date varies slightly each year.

For the year of assessment 2025/26, returns are expected to be issued in the first week of April 2026.

Filing Deadlines by Accounting Year-End

Your filing deadline depends on your company's accounting year-end date. Hong Kong uses a "Code" system to categorize different year-end dates:

Code D: Year-End 1 April to 30 November

Accounting Year-EndFiling Deadline
1 Apr - 30 Nov1 month from date of issue

For most businesses in this category, the deadline falls in early May.

Code M: Year-End 1 December to 31 December

Accounting Year-EndFiling Deadline
1 Dec - 31 DecMid-August

The exact date is typically 15 August or the next business day.

Code N: Year-End 1 January to 31 March

Accounting Year-EndFiling Deadline
1 Jan - 31 MarMid-November

The exact date is typically 15 November or the next business day.

Extension of Time

Automatic Extensions

Businesses represented by tax representatives may be eligible for automatic extensions under the Block Extension Scheme:

CodeExtended Deadline
DEarly August
MMid-November
NLate January (following year)

Individual Extensions

You may apply for an individual extension if:

  • You have genuine reasons for delay
  • You apply before the original deadline
  • The IRD approves your application

Key Dates for 2026

Here are the important tax dates for the year of assessment 2025/26:

EventDate
Issue of Profits Tax ReturnsEarly April 2026
Code D deadline (without extension)Early May 2026
Code D deadline (with extension)Early August 2026
Code M deadline (without extension)15 August 2026
Code M deadline (with extension)Mid-November 2026
Code N deadline (without extension)15 November 2026
Code N deadline (with extension)Late January 2027

Provisional Tax Payment Dates

Provisional profits tax is typically payable in two installments:

First Installment (75%)

Due approximately 3 months after the issue of the demand note.

Second Installment (25%)

Due approximately 6 months after the issue of the demand note.

Penalties for Late Filing

Immediate Consequences

  • Estimated assessment may be issued
  • Penalty of up to HK$10,000 for first offense
  • Additional tax of up to 3 times the tax undercharged

Repeated Offenses

  • Higher penalties for subsequent late filings
  • Possible prosecution in serious cases
  • Surcharge on overdue tax

How to Avoid Missing Deadlines

Set Up Reminders

  • Mark key dates in your calendar
  • Set reminders 1 month before deadlines
  • Consider using accounting software with built-in reminders

Prepare Early

  • Start gathering documents well in advance
  • Complete bookkeeping monthly, not annually
  • Engage your auditor early

Use Professional Services

  • Tax representatives can manage deadlines
  • Block Extension Scheme provides more time
  • Professional firms have systems to track deadlines

What to Do If You Miss a Deadline

Immediate Steps

  1. File the return as soon as possible
  2. Include a letter explaining the delay
  3. Pay any tax due immediately

Dealing with Estimated Assessments

If an estimated assessment is issued:

  1. File the actual return within 1 month
  2. Object to the estimated assessment if necessary
  3. Provide supporting documents

Special Circumstances

New Businesses

New businesses may receive their first Profits Tax Return later than established businesses. The first return typically covers the period from incorporation to the first accounting year-end.

Dormant Companies

Dormant companies must still file returns. You can apply for exemption from filing if:

  • The company has not commenced business
  • The company has ceased business
  • The company has no assessable profits

Businesses Ceasing Operations

If your business is closing:

  • File final returns within the normal deadline
  • Notify the IRD of cessation
  • Settle all outstanding tax liabilities

Conclusion

Meeting tax filing deadlines is essential for maintaining compliance and avoiding penalties. Mark the key dates in your calendar, prepare your documents early, and consider engaging professional help if needed.

For specific questions about your filing obligations, consult with your company secretary or tax advisor.

Need Professional Help?

Our team can assist with tax filing, audit arrangements, and compliance matters.

Contact via WhatsApp