In this course · 1 of 7
Course 2
File your profits tax return
7 lessons · 8 min
- 1When will a new Hong Kong company receive its first profits tax return?
- 2Must I tell the IRD I'm chargeable to tax if I got no tax return?
- 3What is the filing deadline for the Hong Kong profits tax return?
- 4Hong Kong Block Extension Scheme: profits tax return dates for 2025/26
- 5Can I e-file my Hong Kong profits tax return, and is it compulsory?
- 6What documents must I submit with my Hong Kong profits tax return?
- 7Do I need audited accounts to file a Hong Kong profits tax return?
The short answer
The Inland Revenue Department (IRD) generally sends a new Hong Kong company its first profits tax return about 18 months after incorporation, and the company then has 3 months to file. If you are chargeable to tax but receive no return, you must notify the IRD in writing within 4 months after the end of the basis period (the accounting period on which the tax year is based).
Timing. According to the Inland Revenue Department's (IRD's) block extension circular, the first Profits Tax Return (BIR51 for a company) is generally issued some 18 months after the date of incorporation, or after commencement for a new partnership. In some cases the IRD may issue a provisional return earlier.
Time to file. Taxpayers who receive their first return during the year can submit it within 3 months from the date of issue, without needing to apply for an extension.
Do not wait for the form. Anyone who is chargeable to profits tax but has not received a return must tell the IRD in writing within 4 months after the end of the basis period (section 51(2)). A new or "commencement" case must do this; see the answer on notifying the IRD that you are chargeable to tax.
What the first return covers. Often it covers more than one accounting period, because 18 months can span two year-ends. You need accounts and a tax computation for every period covered, so keep your records from day one.
Business registration is separate: it must be obtained within one month of starting business.
Legal basis and sources
The law
- Inland Revenue Ordinance (Cap. 112), s.51(1)
- Inland Revenue Ordinance (Cap. 112), s.51(2)
General information for business owners, not legal, tax or professional advice. Rules change, so check the sources or ask a licensed professional before you act.
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