Transfer Pricing for Small Hong Kong Groups: The Arm's Length Rule and the Documentation Exemptions
"Transfer pricing" sounds like a problem for multinationals. But the rule behind it applies to any Hong Kong company that deals with a related company: a sister company in mainland China, a parent in Singapore, a holding company that charges management fees. Most small groups don't need the formal documentation. They do need the prices to be right.
The rule: arm's length
Under section 50AAF of the Inland Revenue Ordinance, if a transaction between two associated persons is on terms that differ from what independent persons would have agreed, and that gives a Hong Kong tax advantage, the company's income or loss is worked out as if the arm's length terms had applied. It also applies where independent parties wouldn't have done the deal at all.
The assessor can ask the company to show what the arm's length amount is, and if it can't, the assessor estimates it.
Who counts as associated
Two persons are associated if one participates in the management, control or capital of the other, or the same persons participate in both (sections 50AAC and 50AAG). In practice that covers:
- a parent and its subsidiaries, and sister companies with the same owner;
- companies controlled by the same individual or family;
- a company and its owner-director, in their dealings with each other.
Typical small-group transactions
- Management or service fees charged by a parent or a shared-services company.
- Sales of goods to or from a related trading or manufacturing company.
- Loans between group companies, with or without interest.
- Use of a brand, software or other intangibles owned by another group company.
Each needs a price that independent parties would accept, and a reason the IRD would accept.
Documentation: most small groups are exempt
Section 58C requires a master file and a local file, prepared within 9 months after the end of each accounting period and kept for 7 years, unless the entity is exempt (IRD). Schedule 17I sets two exemptions:
| Test | Exempt if |
|---|---|
| Size (any 2 of 3) | Revenue up to HK$400 million; total assets up to HK$300 million; up to 100 employees on average |
| Related-party transactions (each category below its limit) | Transfers of property HK$220 million; financial assets HK$110 million; intangibles HK$110 million; other transactions, such as service fees HK$44 million |
Transactions with other Hong Kong group companies (domestic transactions) are left out of the transaction test. Country-by-country reports apply only to groups with consolidated revenue of at least HK$6.8 billion (section 58D).
Pricing and documenting intercompany charges
- Put it in writing: a short intercompany agreement for each recurring arrangement: what's provided, how it's priced, when it's invoiced and paid.
- Choose a basis you can explain: cost plus a markup for services, comparable market prices for goods, a market rate for loans.
- Invoice it, at least quarterly, as you would an outside customer (see invoice requirements).
- Settle the balances and agree them every month (see intercompany balances).
- Review the prices once a year, when the business changes, or when one company is making losses while the other makes all the profit.
How Certanta helps
- Intercompany invoices and agreements linked to the entries in each company's books.
- Balances between your companies agreed monthly, so the two sets of books match.
- Totals by related party on request: "What did we charge our Singapore company this year?" is a question for the AI assistant in your portal.
Frequently asked questions
Does transfer pricing apply to small Hong Kong companies?
The arm's length rule in section 50AAF of the Inland Revenue Ordinance applies to any transaction between associated persons that gives a Hong Kong tax advantage, whatever the size of the group. The documentation requirements have size and transaction exemptions that cover most small groups.
Who is exempt from preparing a master file and local file in Hong Kong?
An entity meeting any two of: revenue up to HK$400 million, total assets up to HK$300 million, and up to 100 employees on average; or one whose related-party transactions are below the thresholds in each category (HK$220 million for property, HK$110 million each for financial assets and intangibles, HK$44 million for other transactions).
When must transfer pricing documentation be prepared?
Within nine months after the end of the accounting period, and kept for at least seven years (section 58C).
What does arm's length mean?
The terms that independent persons would have agreed in comparable circumstances. If related parties' terms differ and give a Hong Kong tax advantage, the income or loss is computed as if the arm's length terms had applied.
Who counts as an associated person?
Persons where one participates in the management, control or capital of the other, or where the same persons participate in both (sections 50AAC and 50AAG).
What is the penalty for not preparing transfer pricing documentation?
Failing without reasonable excuse to comply with section 58C is an offence with a fine at level 5 (HK$50,000), and the court can order the documentation to be prepared (section 80(2Q) and (2R)).
Intercompany charges, documented as they happen
Certanta books intercompany invoices with their agreements linked and keeps balances between your companies agreed every month.
Open the demo See pricingThis article summarises Part 8AA, section 58C, section 58D, section 80 and Schedule 17I of the Inland Revenue Ordinance (Cap. 112) as published on e-Legislation, and the IRD's transfer pricing guidance, as at 29 October 2026. It is general information, not tax advice. Transfer pricing depends on the facts of each transaction; take advice on significant intercompany arrangements.