Hong Kong Company Tax Filing 2026: Limited vs Unlimited, DIY vs CPA — Every Cost Explained

Budgeting for Hong Kong company tax filing should never come down to "how much does the tax return cost". A limited company normally also involves bookkeeping, audit and tax computation. If your transactions are simple, budget from HK$7,000 for the full year; once cross-border activity, foreign currencies or an offshore claim enter the picture, costs rise along with the data preparation and professional work involved. Below we break down each item, then compare which approach suits you.

The bottom line first: Hong Kong tax filing cost cheat sheet

These are benchmarks drawn from published service prices and market budgets. They are not government-set fees, and they exclude the business registration fee, company secretary annual fee, catch-up bookkeeping, offshore applications and IRD enquiries. The biggest driver of quotation gaps is rarely "the same tax return" — it is the number of transactions, the number of bank accounts, the completeness of supporting documents, foreign currency translation, related-party transactions, and whether an offshore-sourced profits claim is involved.

For example, published service pages show profits tax return preparation alone starting at around HK$700 or HK$1,500, with audit services charged separately. So when you see "HK$1,800 tax filing", first confirm whether it covers the annual accounts, the auditor's report and the tax computation, rather than comparing headline totals directly. Published pricing examples: KAMS, Corsign, PAT CPA

Tax rates and service fees are two different things

Hong Kong profits tax operates on a two-tiered system. For qualifying corporations, the first HK$2,000,000 of assessable profits is taxed at 8.25% and the remainder at 16.5%; for unincorporated businesses such as sole proprietorships and partnerships, the rates are 7.5% and 15% respectively. Where connected entities exist, the lower rate cannot be used by every company at the same time — a nomination must be made under the rules.

For instance, a limited company with no connected entities and assessable profits of HK$1,000,000 would pay HK$82,500 in profits tax at 8.25%. That has nothing to do with the bookkeeping, audit or filing fees charged by your accountant. Rates and the territorial source principle follow the Inland Revenue Department: Profits Tax, Two-tiered rates FAQ.

Three approaches compared: DIY records, bundled packages, CPA firm

1. Organise the records yourself, then hand them to a CPA

If your company has few transactions, you can compile invoices, contracts, bank statements and expense receipts yourself and cut down catch-up bookkeeping time. This does not mean a limited company can file entirely on its own: a typical Hong Kong limited company must still attach audited financial statements when submitting the profits tax return. Only statutorily dormant companies are exempt.

2. Secretarial companies and compliance packages

The market commonly bundles company secretary, registered address, annual reminders and some filing coordination into a package. The advantage is a single administrative point of contact; the drawback is that you must check item by item whether audit, bookkeeping, tax computation, document caps and excess charges are actually included. Regulated trust or company services must be provided by a licensed TCSP — you cannot assume from a package name that every item is carried out by the same entity.

3. A CPA firm

When transaction volume is high, or you have multiple payment platforms, cross-border sales, foreign currency accounts or related-party transactions, going directly to an experienced CPA team usually makes it easier to define data requirements and responsibilities. A higher fee is not automatically overspending; if you end up needing catch-up bookkeeping or repeated document requests every year, a low-price option may simply defer the cost. To assess a provider's practical background, start with their team credentials and scope of services — pages such as About Us set out those professional qualifications.

"Nil" returns, dormancy and "no operations" are not the same thing

A "nil return" is not a shortcut you can tick simply because there was no income. Once you receive a tax return, you must complete it as the form requires even if the company had no operations or made a loss — it cannot be left blank. A typical limited company that has not been registered as dormant with the Companies Registry under the law generally must still prepare and submit audited financial statements. Only companies meeting the dormancy definition under the Companies Ordinance may file without attaching audited accounts.

So if you have a bank account, receipts or payments, assets and liabilities, or any commercial activity, do not treat the company as having "zero activity" on your own judgement. The tax treatment of bank deposit interest also cannot be decided by amount alone — it should be confirmed together with the source of income and the company's actual business. The IRD's guidance on dormant companies is set out in the BIR51 / BIR52 FAQ.

Offshore claims: filing one more form does not save tax

Hong Kong applies the territorial source principle, and not all income from overseas customers is automatically exempt. To claim that profits are not sourced in Hong Kong, you normally need supporting evidence: contracts, where negotiation and signing took place, where the operating staff are based, the performance process, and logistics or platform records. The IRD may request further information, and the audit and tax computation workload increases accordingly.

An offshore claim should be built into the annual budget from the start, not handled at the last minute when the tax return arrives. It can involve extra data preparation, professional judgement and follow-up enquiry time; there is no fixed approval timeline, and "guaranteed approval" should never be the basis for choosing a service provider.

Timeline and late-filing risk

A newly incorporated limited company typically receives its first profits tax return (BIR51) around 18 months after incorporation; the actual date follows the return issued by the IRD. Once received, it must be filed by the deadline stated on the form. Where filing is made through a tax representative, certain financial year-ends can follow the IRD's block extension arrangement — but an extension is never automatic.

Late filing without reasonable excuse can lead to prosecution, with a maximum fine of HK$10,000 plus a further penalty of up to three times the tax undercharged; the IRD may also issue an estimated assessment. Companies should retain business records sufficient to determine their profits for at least 7 years. IRD penalty policy

Six things to put in your enquiry email before comparing prices

1. Does the quote cover bookkeeping, tax computation, BIR51 filing and the auditor's report?
2. How many documents and how many bank or payment platform accounts are covered? How are excesses charged?
3. Are foreign currencies, cross-border receipts, related-party transactions or platform reconciliation charged separately?
4. Are catch-up bookkeeping, missing documents, IRD follow-up submissions and meetings billed extra?
5. Will the audit report be issued by a Hong Kong practising CPA?
6. What is the renewal price for next year, the deadline, and the list of documents required?

Sort out your corporate structure, payment routes and transaction data first, then compare quotes covering the same scope — that way you will not mistake a cheap filing fee for the complete annual cost. Professional sign-off on audit reports and profits tax returns must still be carried out by a licensed accountant; bookkeeping, audit and tax filing belong to different professional service categories in the market, so confirm who actually performs each item before you choose a provider. If you want to clarify which approach fits your situation first, see the scope described on the advisory services page, or use the contact page to outline your corporate structure and transaction profile for assessment.

FAQ

How much does Hong Kong company tax filing cost?

Published starting prices for preparing and filing the profits tax return alone run around HK$700–1,800. A typical operating limited company also has to factor in bookkeeping and audit, so plan for HK$7,000–15,000+ per year in simple cases.

What is the fee difference between unlimited and limited companies?

Unincorporated businesses are taxed at two-tiered rates of 7.5% on the first HK$2,000,000 and 15% thereafter; limited companies pay 8.25% and 16.5%. The larger cost difference usually comes from a limited company's audit requirement and the complexity of its accounts.

Can I file myself without an accountant?

You can organise the records yourself, but a typical operating Hong Kong limited company must submit audited financial statements — completing the form yourself does not remove the CPA audit requirement. Companies registered as dormant under the law are an exception.

If the company had no business, can I file a nil return?

You must still complete the return once it is issued. Whether audited accounts can be omitted depends on whether the company has legally become dormant; "no business" and statutory "dormancy" are not the same thing.

How much extra does an offshore exemption cost?

There is no standard price. The cost depends on your business processes, the completeness of your evidence, the audit and tax data preparation involved, and any follow-up IRD enquiries. Get a quote that sets out the scope of work for your specific situation.