When does a HK$105 filing become a HK$3,480 one? When a Hong Kong company misses its 2026 filing deadline and delivers the annual return more than nine months after its incorporation anniversary.
In this blog, we discuss Hong Kong company filing deadlines for 2026:
- NAR1 annual return windows by incorporation anniversary;
- profits tax timing by financial year-end;
- business registration renewal;
- 15-day change notices for the public register.
Which statutory filings set the Hong Kong company filing deadlines for 2026?
Five recurring obligations dominate the 2026 calendar, with different filing triggers administered mainly by the Companies Registry and the Inland Revenue Department.
Most Hong Kong companies are private companies limited by shares, and their headline duty is the annual return. Form NAR1 must reach the Companies Registry within 42 days of the incorporation anniversary each year, with the filing fee set at HK$105 inside the window.
Three further duties run alongside it:
- the business registration certificate renews with the Inland Revenue Department (IRD) each year or every three years;
- the Profits Tax Return files with the IRD on a cycle set by the company's accounting period;
- changes of director or company secretary reach the registry on Form ND2A or ND2B within 15 days, at no charge.
The Significant Controllers Register is not filed, but it must be kept current at the registered office or another place in Hong Kong and made available for inspection; a separate location generally requires notice on Form NR2. For the registry's wider search and filing functions, our guide to the companies registry in Hong Kong provides the background.
When is the annual return due under the 42-day rule?
A private company limited by shares generally files Form NAR1 within 42 days of its incorporation or re-domiciliation anniversary; qualifying dormant companies are exempt, while other company types follow different clocks.
The anniversary date is the anchor of Hong Kong compliance. A company incorporated on 15 March 2023 opens its 2026 filing window on 15 March 2026 and must deliver the return by 27 April 2026. The window re-opens on the same date every year, regardless of the financial year-end.
NAR1 must state the registered office, directors, company secretary, share capital and shareholders, and disclose share transfers since the last return. Persistent non-filing exposes both the company and its officers to prosecution, and raises the risk of the company being struck off the register. Many clients hand the cycle to our corporate secretarial services team so that no window is ever missed.
The filing triggers and on-time fees by company type are summarised in the table below.
1. Private companies limited by shares
Form NAR1, HK$105 on time, delivered within 42 days of the anniversary of incorporation shown on the Certificate of Incorporation. Late-fee bands apply immediately once the window closes.
2. Public companies and companies limited by guarantee
These companies follow the accounting reference period. For public companies with share capital, the return date falls six months after the accounting reference period end. For guarantee companies, it falls nine months after that end. Both have 42 days to deliver the form. The fees are HK$140 and HK$105 respectively.
3. Registered non-Hong Kong companies
Overseas companies registered in Hong Kong file Form NN3 within 42 days of the anniversary of registration, at HK$180 on time, with late fees rising to HK$4,800.
NAR1 Filing Windows for 2026 by Incorporation Anniversary
| Incorporation date | Anniversary (window opens) | 42-day NAR1 deadline | On-time fee |
|---|---|---|---|
| 15 March 2024 | 15 March 2026 | 27 April 2026 | HK$105 |
| 30 June 2023 | 30 June 2026 | 11 August 2026 | HK$105 |
| 31 August 2022 | 31 August 2026 | 12 October 2026 | HK$105 |
| 1 February 2025 | 1 February 2026 | 16 March 2026 | HK$105 |
Annual Return and NN3 Deadlines by Company Type (2026)
| Company type | Form | Filing trigger | On-time fee |
|---|---|---|---|
| Private company limited by shares | NAR1 | 42 days after incorporation anniversary | HK$105 |
| Local public company with share capital | NAR1 | 42 days after the return date (6 months after accounting reference period end) | HK$140 |
| Company limited by guarantee | NAR1 | 42 days after the return date (9 months after accounting reference period end) | HK$105 |
| Registered non-Hong Kong company | NN3 | 42 days after the anniversary of registration | HK$180 |
What do late annual return filings cost in 2026?
The fee climbs in fixed bands the moment the 42-day window closes: HK$870, then HK$1,740, HK$2,610 and HK$3,480 as the delay lengthens.
Late fees are mechanical rather than discretionary. The registry calculates the fee by reference to delivery, using the postmark for postal returns; the filing deadline extends when the 42nd day falls on a Sunday or public holiday. Diarising the window at incorporation is cheaper than any remediation.
Public companies with share capital sit on a higher scale, from HK$1,200 after 42 days to HK$4,800 beyond nine months. Registered non-Hong Kong companies follow the same upper bands, while guarantee companies remain on the lower scale. The current Companies Registry fee schedule confirms every figure for 2026.
The full band scale for private companies is set out in the table below.
Late Annual Return Fees for Private Companies (2026)
| Delivery timing (private company, Form NAR1) | Fee (HK$) |
|---|---|
| Within 42 days of the anniversary | 105 |
| Over 42 days, up to 3 months | 870 |
| Over 3 months, up to 6 months | 1,740 |
| Over 6 months, up to 9 months | 2,610 |
| Over 9 months | 3,480 |
How do the financial year-end and assessment year affect profits tax filing?
The Year of Assessment (YA) runs from 1 April to 31 March, and the financial year ending inside it fixes the entire tax rhythm.
Hong Kong applies a two-tier corporate profits tax rate to assessable profits sourced in Hong Kong: 8.25% on the first HK$2 million of assessable profits and 16.5% on the remainder, subject to the connected-entity election rules; companies that do not qualify are taxed at the flat 16.5% rate. Profits from outside the territory are generally not chargeable. The assessable period is generally the accounting year that closes inside the YA, although special rules apply on commencement, cessation or a change of accounting date.
For 2025/26 returns issued on 1 April 2026, the standard paper deadline was 4 May 2026. Paper returns are generally due one month after issue; electronic notices specify two months. Under the IRD's block extension scheme for represented taxpayers, the 2025/26 dates are:
- Year-end from 1 April to 30 November 2025: 4 May 2026 on paper, with no block extension.
- Year-end in December 2025: 31 August 2026 on paper, or 2 October 2026 for eligible electronic filings.
- Year-end from 1 January to 31 March 2026: 30 November 2026 on paper, or 30 December 2026 for eligible electronic filings.
Voluntary electronic filers must apply for the further extension, and conditions and application deadlines apply. Check the notice and IRD guidance for your case.
The table below summarises the 2025/26 profits tax filing deadlines by accounting year-end. Books of account must be kept for at least seven years. Companies must prepare annual financial statements under the Companies Ordinance. The required components depend on the applicable reporting framework; under the SME financial reporting standard, a cash flow statement is optional and changes in equity may be disclosed in the notes. Corporations file the Profits Tax Return on Form BIR51, with separate forms used for other entity types.
1. Why December and March year-ends dominate
Both year-ends align neatly with the YA cycle and the April issue of returns, simplifying planning for audit and tax work. Companies rarely change the year-end once set, so the choice at incorporation matters.
2. How the first Profits Tax Return differs
The IRD typically issues the first return about 18 months after incorporation. It generally allows three months from issue to file a first return. It falls outside the recurring cycle and needs its own reminder rather than an annual one.
3. What records must be kept
Accounting records, financial statements and supporting documents are retained for at least seven years. The deadline for each year's return depends on the month in which the accounting period ends, as set out in IRD guidance.
When must a Hong Kong company renew its business registration?
The certificate renews annually or every three years on its expiry date, and the IRD issues a demand note before each renewal falls due.
Renewal is a legal obligation, not optional paperwork. Carrying on business on a lapsed certificate is an offence under the Business Registration Ordinance, and a lapsed certificate also complicates bank accounts and contracts. Renewing the one-year certificate on time keeps the company in good standing.
For the 2026/27 registration year, the one-year certificate costs HK$2,200 plus a HK$150 levy, totalling HK$2,350. The three-year certificate costs HK$5,720 plus a HK$450 levy, or HK$6,170 in total. Both figures appear on the Inland Revenue Department's business registration fee schedule.
New companies pay registration alongside incorporation. Electronic delivery of Form NNC1 costs HK$1,545 against HK$1,720 on paper, so an electronic incorporation with a one-year certificate involves government fees of about HK$3,895.
Business Registration Certificate Fees for 2026/27
| Certificate | Registration fee | Levy | Total |
|---|---|---|---|
| One-year certificate | HK$2,200 | HK$150 | HK$2,350 |
| Three-year certificate | HK$5,720 | HK$450 | HK$6,170 |
How do you build a compliance calendar that never misses a date?
Work backwards from the two anchor dates — the incorporation anniversary and the financial year-end — then layer the 15-day change notices over them.
A calendar built this way needs no urgent remedies. The steps below convert the statutory rules into a routine a director can delegate with confidence. The first table shows how the 42-day rule lands across a typical year.
Step 1: Diarise the incorporation anniversary first
Mark the 42-day NAR1 window on the day of incorporation. A company incorporated on 15 March 2024, for instance, could file from 15 March through 27 April 2026; the deadline in other years depends on the calendar. This example is illustrative: 26 April 2026 falls on a Sunday, so the deadline moves to 27 April. Add the business registration renewal date and the applicable profits tax filing deadline, including any approved extension, to the calendar too.
Step 2: Fix the financial year-end deliberately
The year-end chosen at incorporation shapes every later tax date. Businesses planning to register a company in Hong Kong in 2026 should settle the year-end before the first accounting period closes. Our Hong Kong company incorporation services team handles this decision at formation.
Step 3: File change events within 15 days
Changes of director or company secretary go on Form ND2A or ND2B within 15 days, at no fee, rather than being saved for the annual return. Where a first director did not sign the consent in the incorporation form, Form NNC3 follows within 15 days of incorporation.
Step 4: Track the first Profits Tax Return separately
The first return generally arrives around 18 months after incorporation, with three months from issue to file. A standalone reminder prevents it from being missed inside the recurring anniversary cycle.
Step 5: Reconcile the register every year
Before filing NAR1, check that the recorded directors, secretary, registered office and shareholders match reality. A company registry search in Hong Kong shows exactly what the public record states.
Conclusion
Hong Kong compliance in 2026 comes down to two anchor dates and two annual payments. The incorporation anniversary opens the NAR1 window, the financial year-end sets the tax rhythm, and business registration renews annually or every three years in between. Penalties for slippage are mechanical, from HK$870 the day the annual return window closes to prosecution risk for persistent non-filing.
A disciplined calendar removes nearly all of that risk. Diarise the anniversary, fix the year-end at formation, file changes within 15 days, and treat the first Profits Tax Return as its own event.
That is the support 3E Accounting Hong Kong provides. As a Corporate Services Provider, we manage incorporation, corporate secretarial, accounting and tax obligations through technology-enabled processes. Our work is backed by the 3E Accounting International Network across more than 110 countries. We keep clients' Hong Kong company filing deadlines for 2026 under control, so the business never waits on paperwork.
Keep Every 2026 Hong Kong Filing Date Under Control
Speak to 3E Accounting Hong Kong about a managed compliance calendar for your company.
Frequently Asked Questions
A private company limited by shares must file Form NAR1 within 42 days of the anniversary of its incorporation. The fee is HK$105 inside the window, and a company incorporated on 15 March files between 15 March and 27 April in 2026; the deadline may differ in other years.
Late fees apply in bands: HK$870 after 42 days up to three months, HK$1,740 up to six months, HK$2,610 up to nine months and HK$3,480 beyond nine months. Persistent non-filing can lead to prosecution of the company and its officers.
The IRD typically issues the first return about 18 months after incorporation. It generally allows three months from issue to file a first return. Later returns follow the cycle set by the financial year-end and the Year of Assessment.
For 2026/27, the one-year certificate costs HK$2,200 plus a HK$150 levy, totalling HK$2,350. The three-year certificate costs HK$5,720 plus a HK$450 levy, or HK$6,170 in total.
Yes. A change of director or company secretary is filed on Form ND2A or ND2B within 15 days of the change, and there is no filing fee.
Abigail Yu
Director
Abigail Yu oversees executive leadership at 3E Accounting Group, leading operations, IT solutions, public relations, and digital marketing to drive business success. She holds an honors degree in Communication and New Media from the National University of Singapore and is highly skilled in crisis management, financial communication, and corporate communications.
