Must a Hong Kong Company File With Zero Revenue? 2026 Profits Tax Timeline and 3 Common Traps

Every August and September my WeChat gets bombarded with the same question type: how exactly do you file a Hong Kong company's tax? Does a company with no income file? What if it is not filed? Twenty years in this line and I can recite these questions with my eyes closed. Today no beating around the bush: let me explain Hong Kong company tax filing from zero, who governs it, what is filed, when it is filed and which pits exist, all in one article.

Who really has the say in Hong Kong company tax filing

First understand who governs you. Hong Kong company tax filing falls under the Inland Revenue Department (IRD), centred on the Inland Revenue Ordinance. Unlike the mainland, Hong Kong applies the territorial source principle: only profit sourced in Hong Kong attracts profits tax; profit from outside Hong Kong may in principle be claimed as offshore tax exemption. Many misunderstand this one point, assuming overseas income is automatically exempt when in fact an active application is needed, and without it an assessment still comes.

Then the return. A Hong Kong company receives a profits tax return each year, generally issued on the first working day of April, with newly incorporated companies possibly receiving their first one around the 18th month after incorporation. Receiving a return does not mean tax must be paid, but it must be handled; I will explain the distinction in detail below.

Profits tax, salaries tax and property tax in one go

Many mix these three, when in fact they govern completely different matters; the table first.

For the vast majority of Hong Kong companies profits tax is the usual concern. Without employees or rented property, salaries and property tax are basically irrelevant, but the profits tax return is unavoidable as long as the company exists.

The filing obligation of a zero-income company

Back to the title question: for Hong Kong company tax filing, must zero income be declared? The answer: yes, in two situations. First, if the company truly has no operations it may be treated as dormant and apply for exemption from submitting an audit report, but the profits tax return must still be filed on time stating the dormant status; second, if the company has business but a loss in a year, it must still keep accounts, be audited and file, recording the loss for carry-forward against future profits.

Here is a high-frequency misconception I must emphasise: treating non-filing as nil filing. Some agents tell you to ignore it, and the authority then issues a demand, assessment and penalty in one chain, with heavy penalties. Nil filing is not doing nothing but compliantly declaring zero income, and the two concepts are worlds apart.

Three filing disaster cases

Let me start with one that impressed me. Client Ms Zhao in garment trading had not filed for three years after registration, always assuming no business meant no handling. This year the authority sent a profits tax return and she panicked and found me. We urgently did the bookkeeping, audit and retroactive filings; fortunately there was real business, and after over a month of work the three-year hole was patched, with penalties and interest costing tens of thousands of HKD. Had it dragged on, the consequence would no longer have been a money matter.

The second case is the opposite. Client Mr Wang's Hong Kong company ran its business on the mainland with profit sourced offshore, and he dutifully declared all profit for profits tax, overpaying substantially for over a year. We later mapped the business flow and applied for offshore tax exemption, recovering the overpaid tax across two years, saving enough for a decent car. The case shows Hong Kong company tax filing is not about being as dutiful as possible but as clear as possible; do not be shy about tax that should be exempt.

The third case is more common: the client's company changed bookkeeping agents midway, the books broke continuity and the new agent refused to take on the liability. The client came to us, and we spent time sorting out vouchers from the gap period and re-entering them one by one; though laborious, the audit report was issued before the deadline. The longer you drag, the more passive you become, and once the deadline passes the authority is beyond patching materials.

Bookkeeping, audit and filing as one line

Hong Kong company tax filing is not filling in one form; the complete chain is bookkeeping, audit and filing. Bookkeeping turns a year's bank statements, invoices and receipts into financial statements; the audit engages a Hong Kong practising accountant (auditor) to issue an audit report on the accounts; filing is completing the profits tax return and submitting it with the audit report to the authority. Miss any one link and the return cannot go in.

The timeline is roughly this: the company's fiscal year ends (most companies on 31 December or 31 March), bookkeeping and audit generally take one to three months, and after receiving the return there is usually about one month to file, with extension available but not indefinitely. So the normal rhythm is to start arranging at fiscal year end, not to wait until the return arrives at the door.

Local Hong Kong CPA firm or an agent

Many struggle with whom to engage for Hong Kong company tax filing; see this comparison table.

My advice: companies with simple accounts and a single business line can use a reliable agency; but anything involving cross-border profit, tax exemption or restructuring needs a licensed accountant involved. The audit report must be signed by a Hong Kong practising accountant, and no one can replace that.

High-frequency questions about Hong Kong company tax filing

Let me put the most asked client questions here; all are real.

Q: What is the Hong Kong company tax filing deadline? Most returns are issued in April with about one month to file, extendable to August or even November depending on the company's year-end date and the authority's approval.

Q: If the company never had business, can bookkeeping be skipped? A dormant application is possible, provided the status is truthfully stated to the authority with the relevant documents; it does not mean you can disappear and ignore the return.

Q: How much tax does Hong Kong company tax filing involve? Profits tax is computed on profit, at 8.25% on the first HKD 2 million and 16.5% on the excess; no profit means no tax, but the required filing steps cannot be skipped.

Q: Is offshore exemption easy to claim? Not easy; the authority scrutinises strictly and you must prove profit is entirely sourced offshore with solid materials. An experienced team is advisable; going it alone rarely succeeds.

Hong Kong company tax filing comes down to four characters: compliant and timely. Compliant means no loopholes, timely means do not wait for the authority to come knocking. Twenty years have taught me one sentence: filing is not about spending money but about saving it, done right it saves and done wrong it costs. If you are unsure of your company's filing status or worrying about historical arrears, come and talk; I will walk your books and tax from the start, patching what is due and saving what can be saved.