No top-up tax expected
Even with a low-risk or safe-harbour conclusion, assess notification and return obligations and document the no-tax basis.
Global minimum tax compliance
Pillar Two, Hong Kong Minimum Top-up Tax (HKMTT) & GIR
Understand Hong Kong's GloBE reporting duties, safe-harbour assessments and GIR/BIR82 filing even where no top-up tax is expected.
Global minimum tax
15%
Jurisdictional effective tax-rate framework for qualifying multinational enterprise groups.
Scope threshold
EUR 750m
Consolidated revenue in at least two of the four immediately preceding fiscal years.
Hong Kong reporting
6 / 15 / 18 months
Notification / ordinary return / qualifying transition-year return deadlines after year-end.
Why Pillar Two matters
Hong Kong implemented the OECD/G20 GloBE rules and Hong Kong minimum top-up tax from fiscal years beginning on or after 1 January 2025. The IIR and HKMTT apply under Hong Kong's enacted framework; the Hong Kong UTPR begins only on a separately specified date. In-scope groups must assess their jurisdictional effective tax rates, reporting obligations and potential safe harbours.
Applicability and risk assessment
Pillar Two is not the same reporting regime as CbCR. The GloBE revenue test looks at at least two of the four preceding fiscal years, and the detailed computation uses jurisdictional GloBE income and adjusted covered taxes.
- Assess whether the group reaches EUR 750 million annual consolidated revenue in at least two of the four preceding fiscal years.
- Identify Hong Kong constituent entities, joint ventures, stateless entities and potential exclusions.
- Review GloBE income, covered taxes, jurisdictional effective tax rates, HKMTT and relevant IIR exposure.
- Check transitional CbCR safe harbour and other available relief only after validating the specific statutory and OECD conditions.
Three different reporting obligations
A zero top-up tax expectation does not on its own waive the return.
| Requirement | What it means | General Hong Kong timing |
|---|---|---|
| Top-up Tax Notification | Identify in-scope group, participating Hong Kong entities, filing entity and intended GIR route. | Within 6 months after fiscal year-end, subject to applicable rules. |
| Top-up Tax Return (BIR82) | Electronic Hong Kong top-up tax return with assessment-triggering information; group filing relief may apply. | Generally within 15 months, extended to 18 months for the group's qualifying transition year. |
| GloBE Information Return (GIR) | Standardized jurisdictional and group tax information, using the prescribed XML when filed in Hong Kong. | Local GIR may not be needed where a qualifying overseas GIR filing and information exchange arrangement applies; this does not itself remove BIR82 obligations. |
Practical multinational-group scenarios
Every engagement starts with a fact-specific analysis of the group and reporting jurisdictions.
GIR filed by overseas parent
Evaluate qualifying foreign GIR filing and exchange before deciding whether Hong Kong also needs GIR information.
Multiple Hong Kong, Mainland and BVI entities
Map group boundaries, joint venture treatment, eligible designated filing entities and information requests across jurisdictions.
How HKBSCL can help
We coordinate the Hong Kong compliance workstream within an agreed professional engagement.
Scope and safe-harbour assessment
Review GloBE group scope, transitional CbCR safe harbour and HKMTT/IIR implications without guaranteeing a tax outcome.
Compliance and data readiness
Coordinate entity lists, relevant jurisdictional financial information, calculations and supporting records with the global team.
Return and GIR support
Help prepare, review and electronically file Hong Kong notification, BIR82 and locally required GIR information where authorized.
Portal and representation setup
Assist with BTP/TRP onboarding, IR1485 group-code processes, correct service-provider engagement and AEOI-enabled e-Cert readiness.
A practical filing workflow
Start early; the notice, return and GIR routes involve different lead times and data.
- 1
Establish the reporting perimeter
Confirm fiscal years, consolidated revenue, UPE, Hong Kong members and other jurisdictions.
- 2
Test computations and relief
Assess entity data, applicable safe harbours, local filing roles and overseas GIR exchange.
- 3
Finalize and file
Complete the relevant BTP/TRP arrangements, validate GIR XML where applicable and submit within deadlines.
Frequently asked questions
If there is no top-up tax, must we still file?
Yes, an in-scope Hong Kong filing entity generally still files the top-up tax return unless a specific group filing relief applies; the basis for nil liability must be reported.
Can the group file its GIR overseas?
Possibly. The overseas filing and an effective exchange mechanism must meet the Hong Kong rules. GIR filing relief is distinct from the Hong Kong top-up tax return requirement.
Can any appointed tax representative submit BIR82?
No. A tax representative who is not also engaged as a service provider under Schedule 63 section 13 cannot lodge the notification or return on the client's behalf.
When is the return due?
The ordinary deadline is 15 months after fiscal year-end. The 18-month extension depends on the MNE group's actual transition year for filing purposes, not simply its first Hong Kong reporting year.
Discuss your cross-border filing obligations
Tell us about your group structure and reporting year. We can review the applicable Hong Kong obligations and scope an appropriate engagement.
Useful information for an initial assessment
- Ultimate parent jurisdiction and reporting year-end
- Consolidated group revenue and group entity list
- Hong Kong, Mainland China and overseas entities
- Existing CbCR, GIR or top-up tax filings abroad
Related services and guidance
Hong Kong Country-by-Country Reporting (CbCR)
Understand OECD BEPS Action 13, Hong Kong notification and return requirements, and how we help multinational groups coordinate data and filings.
Hong Kong e-Cert (Organisational) with AEOI Functions
Which digital certificate is needed for CbCR, Pillar Two and related filings—and how an authorized service provider may assist.
Corporate Tax Compliance
Corporate Tax Compliance