How to Choose HK Company Tax Filing Services? 2026 Market Costs, 5-Step Process & Accountant Selection Guide

If you are preparing to set up — or have already set up — a Hong Kong company, tax filing is usually the biggest headache: what exactly needs to be done, how much it costs, and who to engage to avoid pitfalls. This article rounds up 2026 market rates and the key points for choosing a provider.

TL;DR — Quick Answer
Market rates for audit fees are around HK$5,000–30,000 (depending on turnover and asset scale; basic annual packages for startups can start as low as HK$3,500). Every limited company must file a tax return each year, and late submission can incur a fine of up to HK$10,000, plus an additional tax of up to 3 times the amount of tax payable. When choosing a service provider, check three things first: whether the quote includes bookkeeping, which CPA will be in charge, and whether there are hidden charges. All cost figures in this article are market-rate references compiled by third-party comparison platforms, not official pricing.

3 Things to Know Before Filing: BIR51, Deadlines & Penalties

Which Form Do You Need? Tell BIR51／BIR52／BIR60 Apart in One Minute

Hong Kong company tax filing is not a one-form-fits-all exercise — first work out which form applies to your company:

• Limited company (corporation) → complete BIR51 (Profits Tax Return — Corporation)
• Unlimited company／partnership → complete BIR52 (Profits Tax Return — Persons Other Than Corporation)
• Individual salaries tax → complete BIR60 (Individual Tax Return)

Important note: from the 2023/24 year of assessment onwards, BIR51 must be submitted together with the audit report and all supporting documents; you cannot submit the form alone. In other words, even if a limited company wants to handle tax filing on its own, it cannot bypass the CPA audit step.

Key Deadlines and the Cost of Late Filing

• First filing: a new company receives its first BIR51 approximately within 18 months from the date of incorporation, and once received, there is a 3-month window to submit.
• Every year thereafter: the Inland Revenue Department (IRD) sends out tax returns on the first working day of April each year, and the normal deadline is only 1 month.
• Extension mechanism: you can apply for an extension through a tax representative. Returns are processed in batches under N／D／M codes according to the financial year-end month — for example, M code (31 December year-end) can be extended until 16 November 2026 at the latest.

The consequences of late submission are no joke: submitting late without approval can incur a fine of up to HK$10,000, and the court may impose an additional tax of up to 3 times the amount of tax payable.

It is also worth noting Hong Kong's two-tier profits tax rates: corporations are taxed at only 8.25% on the first HK$2 million of assessable profits, with the remainder taxed at 16.5%; only one company within the same group can enjoy this halved rate.

External references:
- IRD tax return specimen forms: https://www.ird.gov.hk/chi/tax/bus_returnspecimen.htm
- IRD Profits Tax FAQ: https://www.ird.gov.hk/chi/faq/cpt51.htm

Hong Kong Company Tax Filing Costs (2026 Market Reference)

Audit Fee and Bookkeeping Fee Ranges at a Glance

The figures below are compiled from publicly listed price ranges on third-party comparison platforms (CPA Compare, Toby, PRO360, etc.). They are market-rate references, not fixed price lists; actual quotes are subject to individual accounting firms' quotations.

Quotes for the Same Company Can Vary by 50% — 5 Negotiation Points

There is no standard pricing in the Hong Kong company tax filing market; quotes for the same company from different accounting firms can differ by as much as 50%. When you receive a quote, check these five items one by one:

1. Whether bookkeeping is included: many quotes cover only the audit report, not bookkeeping. If your receipts are disorganised or your bank statements are unsorted, the firm will charge an additional bookkeeping fee, which can double the total price outright.
2. Who the named CPA in charge is: confirm which practising CPA will sign off, so the engagement is not outsourced and passed through intermediaries with mark-ups at each layer.
3. Compare quotes from 2–3 firms: you can obtain initial price ranges through external comparison platforms such as CPA Compare, Toby and PRO360, then shortlist 2–3 firms to negotiate further.
4. Negotiate renewal and multi-year discounts: luring clients with a low first-year price and raising it significantly the following year is a common tactic; get the renewal price written into the quote before signing.
5. Itemise additional charges: backlogged bookkeeping, rush fees for late filings, and handling charges for correspondence with the IRD must all be spelled out in writing before you sign.

Which Provider Type for Which Company? A Three-Way Selection Matrix

Bookkeeping Firms vs CPA Firms vs One-Stop Platforms

There are three main types of providers in the market, each suited to companies at different stages and with different needs:

Pre-Contract Checklist (5 Questions)

Whichever type you choose, get clear answers to these five questions before signing — most of the common pitfalls can be blocked in advance:

1. Will the audit report be signed off by a practising CPA?
2. Does the quote cover both bookkeeping and tax return submission?
3. Can they handle extension applications (as tax representative)? Is there an extra charge?
4. What submission timeline is promised, and how is liability for delays agreed?
5. Are renewal pricing and hidden-charge terms clearly itemised?

The 5-Step Tax Filing Process

The whole Hong Kong company tax filing process can be broken down into five steps. We recommend starting 1–2 months in advance to avoid rush fees near the deadline:

1. Bookkeeping: organise all receipts, bank statements, contracts and expense records.
2. Prepare financial statements: draw up the profit and loss statement and balance sheet in accordance with Hong Kong accounting standards.
3. CPA audit: a practising CPA examines the accounts and issues an audit report.
4. Prepare the tax computation: calculate the chargeable profits and apply the two-tier profits tax rates.
5. Submit BIR51: complete the tax return and submit it to the IRD together with the audit report and tax computation.

For your first filing, allow a 3-month buffer; in subsequent years, start the process before the tax return arrives — it will be far more relaxed than starting after you receive it.

FAQ

My Company Has No Operations — Can I File a Nil Return?

Even if a limited company (corporation) has no operations at all, it must still engage a practising CPA to conduct an audit and submit a tax return. So-called “nil filing” or “dormancy exemption” applies only to unlimited businesses (sole proprietorships/partnerships). Submitting a blank BIR51 carries the risk of IRD review and penalties — do not take chances.

When Will I Receive My First Tax Return?

A new company receives its first BIR51 approximately within 18 months from the date of incorporation, after which you have 3 months to prepare and submit. Thereafter, the IRD sends out tax returns in early April each year, with a normal submission deadline of 1 month; extensions can be applied for through a tax representative.

How Much Does Outsourced Tax Filing Cost?

Market-rate references: audit fees are around HK$5,000–30,000 (depending on turnover and asset scale), and annual bookkeeping fees start from around HK$1,000–6,000. Quotes for the same company from different accounting firms can vary by 50%, so it is advisable to compare at least 2–3 firms. The figures above come from market ranges compiled by third-party comparison platforms; actual quotes are subject to individual accounting firms.

What Happens If I File Late?

Submitting late without approval can incur a fine of up to HK$10,000, and the court may impose an additional tax of up to 3 times the amount of tax payable. If you know you cannot complete the filing within the deadline, apply to the IRD for an extension through a tax representative as early as possible — do not wait until the deadline has passed.

Can Offshore Income Be Tax-Exempt?

You can apply for an exemption. Hong Kong adopts the territorial source principle — only profits sourced in Hong Kong are taxable. However, the IRD scrutinises offshore exemption claims strictly. When applying, prepare written evidence such as contracts, communication records and travel documents; it is advisable to have a CPA assess the case before submission to avoid rejection due to incomplete documentation.

Next Steps: Your Action Checklist

You do not have to figure out Hong Kong company tax filing from scratch on your own: first confirm your company type and financial year-end date → obtain quotes from 2–3 firms and compare service scope item by item → use the selection matrix to decide which provider type suits you → start the process 1–2 months early, and you can avoid most of the pitfalls others fall into.

For more information on running a Hong Kong company, visit the chanchung official website to browse the latest articles and guides.

Further reading:
- Hong Kong Company Incorporation: Process and Key Considerations
- Hong Kong Company Audit Fees and Process Explained
- Guide to Applying for Offshore Income Exemption
- Two-Tier Profits Tax Rates Explained