Have you recently received profits / salaries / property tax assessments for the year of assessment 2019/20 from the Hong Kong Inland Revenue Department (“IRD”)? If yes, please pay attention as you may be subject to a tax audit by the IRD.

In Hong Kong, the IRD is generally empowered to raise tax enquiries and issue tax assessments to taxpayers within 6 years after the end of the year of assessment concerned. As such, the IRD recently starts to issue tax assessments for 2019/20 to some taxpayers in order to preserve the rights to assess the tax position for 2019/20 and such tax review might probably be in the form of tax audit.

If you’ve just opened an IRD letter, or you’re worried you might be next, it’s important to understand what the IRD is actually looking for and how the process works in practice.

This article walks you through:

• What “tax audit” means in Hong Kong
• How and why the IRD selects cases
• What happens during a field audit or investigation
• The issues the IRD commonly challenges
• What you should do (and avoid doing) if you’re under review
• How professional help can reduce tax, penalties and stress

What Is a Tax Audit in Hong Kong?

“Tax audit” (稅務調查） is a broad term. In Hong Kong, the IRD reviews cases in several ways:

Tax investigation

A deeper and often longer review, usually over multiple years, where the IRD suspects under‑reporting or possible evasion.

Desk enquiries

Written questions and requests for documents sent by post or email.

Field audit

IRD officers visit your business premises to review records and understand how the business really operates.

Most business owners and individuals simply refer to all of these as a “tax audit”.

Within the IRD, the Field Audit and Investigation Unit mainly handles:

• Profits Tax cases (companies, partnerships, sole proprietors)
• Salaries Tax cases (employees, directors, consultants)
• Related matters such as Property Tax when relevant

The goal is to check whether income is correctly reported and tax is properly paid. The process is not automatically criminal. However, if the IRD discovers deliberate under‑reporting or evasion, it can raise back‑dated assessments, impose penalties and, in serious cases, start prosecution.

 Why Does the IRD Select Certain Taxpayers for Audit?

The IRD does not tell how it picks cases for tax audit, but its approach is largely a mix of risk‑based selection and sampling.

1. Risk‑Based Screening and Random Checks

The IRD relies on a mix of:

• Risk‑based selection – using data analytics and risk profiles to pick out higher‑risk cases.
• Random or sample checks – so that everyone knows they might be selected.

Risk‑based selection tends to focus on data / ratio patterns that do not “fit” with the information the IRD holds.

2. Typical Triggers for Profits Tax Cases

Some common reasons businesses are picked up:

• Repeated losses or very low profits over several years while the business continues to operate.
• Sharp changes in turnover, gross profit or expenses without a clear explanation.
• Gross profit margins that are significantly lower than similar businesses in the same industry.
• Heavy use of cash, weak internal controls or disorganised accounting records.
• Unusually large deductions (e.g. management fees, consultancy fees, royalties), especially if paid to related parties or offshore entities and with limited supporting evidence.
• Related‑party and transfer pricing issues that suggest profits may have been shifted away from Hong Kong.
• Differences between tax returns and other information available to the IRD (for example, employer returns, property transactions, or information obtained from third parties).
• Late / non-filing of tax returns

3. Triggers in Salaries Tax and Personal Cases

For individuals, cases often come to the IRD’s attention because of:

• Mismatches between your personal tax return and employer returns (Form IR56B, IR56F etc.).
• Unreported income such as director’s fees, employment income from more than one employer, or overseas income with a Hong Kong connection.
• Large deductions claimed (home loan interest, charitable donations and others) where supporting documents are lacking or inconsistent.
• Use of personal service companies or “consultant” arrangements where, in substance, the IRD considers the person to be an employee.
• Buying properties at significant price but income reported to the IRD being low.

4. Focus on Certain Industries or Themes

The IRD occasionally runs campaigns focusing on specific industries, business models or tax issues (for example, cash‑intensive trades, cross‑border arrangements, or certain professional services). If your business falls into one of these areas, your risk of being selected for audit potentially increases.

How Does a Tax Field Audit or Investigation Usually Work?

1. First Letter and Start of the Case

The process often starts with:

• A letter asking for basic information, documents or explanations; and/or
• A formal notice stating that your case has been selected for field audit or investigation.

The IRD will typically ask for:

• Detailed ledgers
• Bank statements, sales and purchase invoices, receipts and vouchers
• Contracts and agreements (including those with related companies or overseas parties)
• Payroll, MPF and HR records
• Information on shareholders, directors and key decision‑makers

In a field audit, the IRD may also propose a site visit.

2. Site Visit and Interviews

During a field visit, IRD officers usually:

• Walk through your premises to see how the business actually operates.
• Understand the mode of business operation and review accounting systems and procedures, such as how sales are captured, how inventory is controlled, and how cash is handled.
• Interview owners, directors and accounting or operational staff. The officers will compare what they hear with the documents you have provided.

In more serious investigations, questioning can be more formal. You may be asked to sign records of interviews, and cautionary statements may be read out.

3. Detailed Review and Follow‑Up Questions

After collecting information, the IRD spends time analysing your case. Typically, they will:

• Compare your results and margins over several years.
• Review whether any private expenses have been claimed for tax deduction and any income has been under-reported.
• Review the sufficiency of the internal control.
• Examine large or unusual items, particularly related‑party transactions.
• Check whether the transactions are supported by underlying documents.
• In some cases, compare your position with industry norms and with data from other sources.

You should expect follow‑up questions. The IRD may ask for clarifications, additional supporting documents, or explanations for certain items.

4. Adjustments, Additional Assessments and Settlement

If the IRD is not satisfied with your explanations or finds discrepancies, it may:

• Increase your assessable profits or income for certain years.
• Issue additional or revised assessments (commonly up to 6 years back; up to 10 years in cases of fraud or wilful evasion).
• Impose penalties, usually calculated as a percentage of the tax undercharged.
• In the most serious cases, consider criminal prosecution.

Often there is a period of discussion or negotiation, especially where there is room for interpretation or where your records are incomplete. A competent adviser can help present your position logically, prepare a good settlement proposal, highlight mitigating factors and work towards a reasonable outcome.

Common Issues the IRD Focuses On

Based on typical field audit and investigation cases, the IRD often scrutinises:

1. Under‑Reported Sales / Cash Income

• “Off‑book” sales, unrecorded cash receipts, or parallel bank accounts.
• Discounts, rebates, and consignment sales not properly documented.
• Manipulation of point‑of‑sale systems or deletion of records.

2. Over‑Claimed or Non‑Deductible Expenses

• Private or personal expenses booked as business costs (travel, entertainment, motor vehicles, home utilities).
• Director / shareholder expenses without clear business purpose.
• Lump‑sum “management fees”, “consultancy fees” or “service fees” without supporting agreements or evidence of services.
• Capital expenditure wrongly claimed as revenue deduction.

3. Related‑Party and Cross‑Border Transactions

• Payments to related companies (especially offshore) with no or minimal substance.
• Transfer pricing – pricing of intra‑group sales, services, loans and IP not at arm’s length.
• Profit shifting arrangements where Hong Kong activities are significant but Hong Kong profits reported are low.

4. Salary vs Business / Consultant Arrangements

• Individuals operating via personal service companies or consultant agreements where the IRD considers them effectively employees.
• Directors or key staff being paid through multiple entities or as “consultants” to reduce salaries tax and employer obligations.

5. Record‑Keeping Failures

• Missing or incomplete accounting records, invoices or contracts.
• Inadequate documentation to support deductions and tax positions.
• Weak internal controls, especially for cash businesses.

Poor records do not automatically mean fraud, but they give the IRD more scope to make upward adjustments and impose higher penalties.

What to Do If You Receive an IRD Tax Audit or Investigation Letter

1. Do Not Ignore or Delay

• Read it carefully, note all deadlines and scope.
• If you genuinely need more time, request an extension before the due date.

2. Get Professional Help Early

Tax audits and investigations are technical and can easily expand in scope. Early advice can:

• Safeguard your rights and tax benefits.
• Understand what the IRD is really looking at.
• Ensure your replies are accurate, consistent and not unnecessarily broad.
• Help you avoid statements or documents that may be misunderstood or used against you later.

Trying to handle everything on your own, especially where there may be historical issues or incomplete records, often increases both risk and cost.

3. Be Honest, But Careful

• Do not alter or destroy records.
• Avoid guessing or making casual comments that are not fully thought through.
• Where past errors exist, structured disclosure with professional support is often far better than ad‑hoc explanations.

4. Know You Have Options

You are entitled to be represented, to understand the scope of the audit, and to object to assessments within time limits.

If you have received an IRD letter or expect one soon, it is usually far more efficient to speak with a tax advisor at the outset than to wait until problems escalate.

How HKWJ Tax Law can help

Tax audits and investigations are demanding and stressful. Our team has extensive experience handling:

• Field audit and investigation cases for corporations, partnerships and individuals
• Preparation of replies to the IRD enquiries on a timely and professional manner.
• Accompanying to attend tax interview with the IRD ; answer and provide guidance and support before the interview.
• Negotiations with the IRD on various tax issues and penalties as well as preparation of settlement proposal.
• Complex issues like transfer pricing, cross‑border arrangements and related‑party transactions
• Voluntary disclosures and regularisation of historical tax issues

If you have received an IRD letter, or you are concerned about potential exposure, early professional advice can make a decisive difference. Contact HKWJ Tax Law below for a confidential initial discussion.