A newly incorporated limited company in Hong Kong usually receives its first Profits Tax Return (BIR51) from the Inland Revenue Department about 18 months after incorporation, and has 3 months from the issue date to file it together with an audited report from a practising accountant. Even a company with no trading activity or a loss-making year must still file on time, audited accounts included — the old "zero filing" shortcut that let inactive companies skip the audit is gone. Miss the deadline and the fine can reach $10,000, with the possibility of prosecution on top. Here's the timeline, the paperwork, and what to do if the company hasn't started operating yet.
When does a new company get its first Profits Tax Return?
The IRD doesn't issue a return the moment a company is incorporated — it typically waits around 18 months before sending out the first BIR51. IRD file references for a first return are generally identified by a "23" prefix, which distinguishes them from the routine returns issued in later years. If 18 months have passed with no return in hand but the company has already made assessable profits in that period, it isn't off the hook — the law requires it to proactively notify the IRD within 4 months of the end of the relevant basis period, and missing that notification deadline can itself lead to prosecution or an additional-tax assessment.
How long do you actually have to file the first return?
The first Profits Tax Return gives a company 3 months from the issue date to file, with no separate extension application needed — a noticeably longer window than the 1-month deadline that applies to routine returns afterwards, giving a first-time filer enough runway to complete its first audit. Routine returns are generally issued in a bulk run near the start of April and are typically due within 1 month of issue, though not every company gets one every year — a long-dormant or not-yet-trading business may not be reissued annually, and the actual deadline always follows the notice on the return itself. If the company appoints a tax representative, that representative can apply for extra time under the IRD's block extension scheme, with the actual extension length depending on the company's financial year-end.
What documents does a limited company need to prepare?
Unlike an unlimited company — a sole proprietorship or partnership that was never incorporated at the Companies Registry — a Hong Kong limited company's directors are required under the Companies Ordinance (Cap. 622, s.379(1)) to prepare financial statements every year, and those statements must be audited by a practising accountant (s.405) before the company can file — unless it's formally registered as dormant (covered below). A first filing generally means preparing: the completed BIR51 form, a certified copy of the balance sheet and profit-and-loss account, an auditor's report, and a tax computation with supporting schedules reconciling accounting profit to assessable profits. It's worth being precise here, because a lot of what's written online is now out of date: since the 2022/23 year of assessment, the IRD scrapped the old exemption that let small corporations with gross income not exceeding $2 million file without attaching supporting documents — the old habit of a "zero filing" is over, and every company now has to submit the full document set, even one with no income at all for the year (more on that below). Pulling all of this together is rarely trivial for a company that has only just started trading — many founders handle bank account opening at the same time as incorporation specifically so that every transaction is captured in one account from day one, which makes the first audit far less painful to assemble.
Does a company with no business activity still need to file?
Yes — and a lot of founders assume otherwise, expecting that "no activity" means "no audit." Even if the company had zero income and zero activity in its first financial year, a return that's issued still has to be filed on time, declaring no business was carried on — it can't simply be set aside. The audit obligation doesn't depend on income either: under the Companies Ordinance, a Hong Kong limited company must have its financial statements audited every year, whether or not it earned anything, and the IRD's own position is that it will only accept a Profits Tax return filed without audited financial statements from a company that has been formally registered as dormant under the Companies Ordinance. A qualifying private company with no accounting transactions (statutory fees aside) during the relevant period can, through company secretarial services, pass a special resolution and deliver it to the Companies Registry — the company becomes dormant from the date the resolution is delivered (or a later date the resolution specifies), and that status is what exempts it from preparing audited accounts going forward; it doesn't retroactively excuse the audit for periods before the resolution took effect. Any accounting transaction automatically ends dormancy, and if the company then earns assessable profits without having been issued a return, the usual notification rule applies: tell the IRD within 4 months of the end of the relevant basis period.
What happens if the return is filed late?
Under section 80(2) of the Inland Revenue Ordinance, failing without reasonable excuse to file a Profits Tax Return on time is a criminal offence: on conviction, the court can impose a fine of up to $10,000 plus a further fine of up to three times the tax undercharged, and can order the company to file the outstanding return. Where the case hasn't been prosecuted or compounded, the IRD can instead assess additional tax under section 82A, of up to three times the tax undercharged — in practice this is an alternative route to section 80(2) prosecution, not a separate penalty stacked on top of it. Sections 80(5) and 82(2) separately give the Commissioner discretion to compound either offence — settling it with a monetary payment instead of prosecuting — but that discretion isn't a reason to treat the deadline lightly.
What does outsourcing this actually save you?
The paperwork and timeline for a first audit and first filing are more involved than they look, and getting a deadline or a document wrong is enough to put a company in breach. StartupCow's accounting and tax filing service sends timely reminders ahead of every key tax date and includes one free professional accounting consultation within the first three months after incorporation, helping a new company build a proper bookkeeping habit from day one and carry it through to its first audit and filing without the usual scramble. If you're still at the incorporation stage, our complete guide to setting up a limited company in Hong Kong walks through the full timeline from registration through to that first return.
Filing timeline at a glance
| Stage | Issued | Filing deadline |
|---|---|---|
| First Profits Tax Return | ~18 months after incorporation | 3 months from issue date |
| Routine annual return | Generally a bulk run near the start of April | Typically 1 month from issue date (per the notice; extendable via a tax representative) |
Sources
- Companies Registry — Companies Ordinance FAQ on accounts and audit (s.379, s.405)
- IRD — Completion of Profits Tax Returns and Supplementary Forms
- Government press release — IRD announces returns must be filed with supporting documents (April 2023)
- IRD — Notification of Chargeability
- IRD — Penalty Policy
