How to handle an IRD tax investigation, field audit or enquiry letter in Hong Kong

Practical first steps when the IRD writes: desk audit, field audit and investigation under DIPN 11 — records, replies, settlement and section 82A additional tax at a high level. General information only.

2026-10-28

Receiving an Inland Revenue Department (IRD) enquiry letter, desk-audit request, field-audit notice or investigation letter can feel unsettling. In most cases the Department is checking whether returns and records support the profits or income declared — not launching a criminal case by default. This note summarises the public process described in IRD Departmental Interpretation and Practice Notes No. 11 (Revised) — Field Audit and Investigation and the IRD Penalty Policy, with practical first steps for Hong Kong companies and owners. General information only, not tax or legal advice; outcomes always turn on your facts.

Terms below follow IRD public guidance (DIPN 11, October 2007 revision still published on ird.gov.hk, and the current Penalty Policy page). Confirm any deadline or procedure against the letter you received and current IRD publications.

1. Common forms of IRD follow-up

Under Hong Kong’s “assess first, audit later” approach, returns may be assessed first and later selected for post-assessment review. DIPN 11 describes an audit trilogy:

  • Desk audit — desk review of an automated assessment; the assessing officer may raise written enquiries and you must furnish the information required.
  • Field audit — review of books and records, often with a visit to business premises, to check that profits tax returns are correct and to encourage voluntary compliance. Focus is usually the most recent return year; with agreement, findings may be projected to earlier years.
  • Investigation — in-depth examination where tax evasion is suspected. DIPN 11 notes that an investigation normally covers the 6 years of assessment before the year in which it starts; where fraud or wilful evasion is involved, coverage may extend to 10 years.

Field audit and investigation work sits with the IRD’s Field Audit and Investigation Unit. Separately, ordinary assessing officers may send routine enquiry letters on specific items (e.g. offshore claims, related-party charges, large deductions). Treat every letter seriously — even a short enquiry can escalate if ignored or answered inconsistently.

2. What to do first

  1. Read the letter carefully — note the officer’s name/unit, file reference, years of assessment named, documents requested and the reply deadline.
  2. Do not ignore it — silence often leads to estimated or protective assessments and a harder penalty discussion later.
  3. Diary the deadline — DIPN 11 indicates that notices under section 51(4)(a) often allow about one month for a reply; short written extension requests are commonly considered. If only part of the material is ready, send that part on time and ask for more time on the rest.
  4. Appoint an adviser early — give clear instructions to ascertain true assessable profits and report them. DIPN 11 stresses that co-operation generally affects the penalty level.
  5. Preserve records — section 51C requires proper business records to be retained for not less than 7 years after the transactions. Do not alter, discard or “tidy” source documents once an enquiry has started.
  6. Keep one consistent story — align what directors, bookkeepers and representatives say with the books, bank trails and prior returns.

3. Document preparation

Typical packs requested in desk audits, field audits or investigations include:

  • Books of account, trial balances, year-end adjustments and tax computations
  • Sales and purchase invoices, contracts, shipping or service evidence
  • Bank statements (business and, where relevant, directors’/proprietors’ accounts used for business money)
  • Director / proprietor current-account analyses and explanations of drawings
  • Stock listings and valuation basis, if trading stock is material
  • For offshore or source claims: operation narratives, where contracts were negotiated and performed, and supporting correspondence
  • For related-party / transfer pricing issues: agreements, pricing policy and any master/local file documentation if section 58C applies

If records are incomplete, the IRD may use indirect methods described in DIPN 11 (for example Assets Betterment Statement, bank-deposits method, percentage/business-economics method or projection). Early, organised disclosure is usually better than waiting for the Department to reconstruct the position alone.

4. Communicating with the IRD

  • Prefer written replies that answer each question in order, attach numbered exhibits and keep a full copy of what you sent.
  • Meetings / field visits — DIPN 11 notes that at least two officers normally attend; you may bring a representative. After an interview, you should receive a record of interview to confirm or correct in writing.
  • Third-party checks — officers may seek information from banks, customers or suppliers under section 51(4)(a); prompt, complete answers from you reduce the need for those enquiries.
  • Consistency — do not volunteer speculative theories that contradict the accounts. If a fact is uncertain, say so and explain how you will verify it.

Performance pledges for completing field audit and investigation cases run from receipt of a substantive reply or the required books (see current IRD Performance Pledge publications). Fast, complete responses help both sides.

5. Settlement, additional tax and penalties (high level)

Where understatements are agreed, you may be asked to sign a settlement form covering additional assessable profits for the years concerned. DIPN 11 is clear that this usually settles basic tax only; penalty action is considered separately by the Commissioner or a delegated senior officer.

Without prosecution under sections 80 or 82, the Commissioner may assess additional tax under section 82A — a monetary penalty of up to three times the tax undercharged. Before assessing additional tax, a notice must invite written representations, with at least 21 days to reply. You may appeal an additional-tax assessment to the Board of Review (normally within one month of the notice).

The published Penalty Policy for field audit / investigation cases scales loading by nature of omission and quality of disclosure (full voluntary disclosure; full information promptly on challenge; incomplete or belated disclosure; disclosure denied), with aggravating and mitigating factors such as co-operation, sophistication of the business and length of the offence period. Percentages in the policy tables are guidance only — your case may be adjusted up or down. No adviser can guarantee a particular penalty outcome.

Wilful evasion can lead to prosecution (including possible imprisonment in serious cases). Most commercial discrepancies are handled administratively, but the tone of your conduct still matters.

6. How VCL can help

Value Consultant Limited (匯程) supports Hong Kong companies with accounting, statutory audit coordination, profits tax compliance and practical liaison when IRD letters arrive. We can help you:

  • Decode the letter and diary deadlines
  • Assemble books, bank and invoice packs in a reply-ready order
  • Draft clear written responses and meeting notes (working with your tax counsel where litigation risk is high)
  • Keep ongoing profits tax and accounting files audit-ready so the next enquiry is easier

Received an IRD letter? Send us a scan (WhatsApp or email) for a calm first read-through — general orientation only until we are formally engaged. This article is not a client-specific opinion.

You may also draft a mitigation-style letter outline with our IRD plea / mitigation letter tool — review with your adviser before sending.

Sources: DIPN 11 (Revised) Field Audit and Investigation (PDF) · 稅務條例釋義及執行指引第11號(修訂本) · IRD Penalty Policy · 罰款政策(中文) · Performance Pledge

Related services: Profits tax filing · Hong Kong audit · Accounting · IRD plea letter tool · Contact VCL

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