Your First Profits Tax Return Filing in Hong Kong for a New Company

Your First Profits Tax Return in Hong Kong What to Expect

The Inland Revenue Department’s first profits tax return catches many new companies off guard. Business owners often expect it shortly after incorporation. It does not arrive. The first profits tax return for a Hong Kong company can appear months, even years, after formation. Understanding the trigger, the required documents, and the filing deadline prevents penalties and stress.

How the IRD Issues the First Return

The IRD does not issue a profits tax return automatically upon incorporation. The Department waits until the company has completed a full year of assessment. Hong Kong’s year of assessment runs from 1 April to 31 March. A company incorporated in June 2024 will not receive its first return until after 31 March 2025, because the IRD needs a complete income year to assess.

When the return arrives, it is Form BIR51 for a corporation. For unincorporated businesses, the form is BIR52. The return covers a specific basis period , the accounting period that ends within the year of assessment. If a company has an accounting date of 31 December and was incorporated in mid-2023, its first return likely covers the basis period from incorporation to 31 December 2024, and the return is issued in the year of assessment 2025-26.

Hong Kong First Profits Tax Return Deadline

The initial deadline for any profits tax return is one month from the date of issue, as stated on the form. The IRD grants no extension for the first return unless a tax representative , a certified public accountant or tax firm , is appointed and notifies the Department.

With a tax representative, the company can use the block extension scheme. The IRD publishes a letter each year setting later filing dates based on the accounting date. For a company with a 31 December accounting date, the block extension might push the filing deadline to 15 May or 15 August, depending on whether the representative files electronically. Without a tax representative, the one-month deadline is fixed. Miss it, and the block extension cannot rescue you later.

First Profits Tax Return Hong Kong New Company

A first profits tax return hong kong new company must include three core documents:

1. Audited accounts , Financial statements examined by a Hong Kong Certified Public Accountant. The Companies Ordinance (Cap. 622) requires most companies to prepare and audit annual accounts, and the IRD expects the same for tax purposes. Dormant companies may apply for exemption, but an audit is the default.
2. Tax computation , A schedule showing how the accounting profit is adjusted to arrive at assessable profits. Common adjustments include disallowed expenses and capital allowances on plant and machinery. Club fees and fines are disallowed.
3. Supplementary forms , The IRD includes forms S1 to S18 depending on the company’s activities. A trading company files S1 for manufacturing and S2 for trading. These forms detail revenue categories and deductions.

If the company had no activity in the basis period, it can file a NIL return , a return with zero turnover and zero profits , and must still submit the audited accounts showing no transactions.

What to Expect First Profits Tax Return Hong Kong

The IRD’s expectation for a first return is straightforward but exacting. Expect the following:

• Two-tiered rates election , Hong Kong taxes the first HK$2,000,000 of assessable profits at 8.25% for corporations and the remainder at 16.5%. Only one company in a group of connected entities can claim the lower rate. The election is made on the tax computation. If the election is not made, the IRD charges the full 16.5% on all profits.
• Provisional tax , The first return triggers assessment of provisional tax for the following year. The IRD estimates the company’s next year’s profits based on the current year’s return and demands a payment in advance. A separate form accompanies the notice. File a holdover application if profits are expected to be lower.
• Offshore claim , If the company’s profits arose entirely outside Hong Kong, the company must submit a claim on the tax computation. The territorial source principle means only Hong Kong-sourced profits are taxed, but the IRD requires evidence. Departmental Interpretation and Practice Note 21 (DIPN 21) explains the locality test. A claim must be detailed and supported by contracts, invoices, and bank records.

BIR51 First Return Hong Kong

BIR51 first return hong kong is the specific form code. The return packet includes the BIR51 itself , a one-page summary of the company’s profits, tax payable, and declarations , plus supplementary forms from the S-series and a filing checklist.

The BIR51 must be signed by a director, secretary, or the company’s tax representative. Electronic filing through the Business Tax Portal or Tax Representative Portal is available. Since 1 April 2026, mandatory electronic filing applies to companies that are part of a multinational enterprise group with consolidated revenue of EUR 750 million or more. For other companies, paper filing remains acceptable, though the IRD encourages electronic submission to reduce errors.

Common Mistakes on the First Return

New companies often make errors that delay processing or trigger penalties:

• Assuming no return means no filing obligation , The IRD issues returns only to companies it has selected. If no return arrives but the company had profits, the company must notify the IRD. Failure to do so can result in a penalty of up to three times the undercharged tax.
• Missing the supplementary forms , Many companies file only the BIR51 and forget the S-series forms. The IRD may reject the return as incomplete.
• Unsupported offshore claim , A claim that profits are offshore without documentary evidence rarely succeeds. The IRD views an unsupported claim as an assessment of full liability.
• Not appointing a tax representative early , If the one-month deadline passes without a tax representative, the company cannot later rely on the block extension. The original deadline stands.

After Filing

Once the return is filed, the IRD issues a notice of assessment within a few weeks. The notice shows the assessable profits, the tax payable , including provisional tax for the following year , and the due date for payment. Payment must be made within one month of the notice date, unless the block extension sets a different date.

If the company has no profits and filed a NIL return, the assessment should also show zero. The IRD may still issue a demand for provisional tax. Challenge this with a holdover application.

Summary of Deadlines

The Inland Revenue Department (ird.gov.hk) publishes the current block extension letter on its website. Check the letter each year. Dates shift.

Next Steps

When the BIR51 arrives, appoint a tax representative immediately. The representative can review the accounts, prepare the tax computation, and ensure the supplementary forms are correct. Do not delay. The one-month clock starts the day the form is issued.