Loading…
Loading…
The Inland Revenue (Amendment) (Minimum Tax for Multinational Enterprise Groups) Ordinance 2025 (Ordinance No. 21 of 2025) is Hong Kong's primary legislative vehicle implementing the OECD/G20 Inclusive Framework GloBE Model Rules (December 2021) and subsequent Administrative Guidance. The Bill (introduced December 2024) was passed by the Hong Kong Legislative Council on 28 May 2025 and gazetted as Ordinance No. 21 of 2025 on 6 June 2025. The implementation approach inserts Part 4AA and Schedules 61–64 into the existing Inland Revenue Ordinance (Cap. 112) — a "model-rules-by-reference" technique whereby Part 1 of Schedule 61 directly incorporates the OECD GloBE Model Rules text with limited necessary adaptations, and Part 2 contains the local-law UTPR provisions (currently uncommenced). This differs from Singapore's MEMTA 2024 (standalone statute) and the EU's Council Directive 2022/2523 (binding transposition into member-state law), but achieves equivalent functional coverage. The Inland Revenue Department (IRD) is the administering authority; top-up tax is deemed profits tax, allowing existing IRO collection, objection, and appeal mechanisms to apply.
Income Inclusion Rule (IIR): The IIR imposes a top-up charge on a Hong Kong ultimate parent entity (or qualifying intermediate parent entity) in respect of low-taxed constituent entities anywhere in the group's global footprint where the jurisdictional effective tax rate (ETR) is below 15%. Hong Kong-headquartered MNE UPEs with global revenue ≥ EUR 750M become first-line collectors of GloBE top-up tax from fiscal years beginning on or after 1 January 2025.
Hong Kong Minimum Top-up Tax (HKMTT / QDMTT): The HKMTT is Hong Kong's qualified domestic minimum top-up tax, giving the SAR first-priority taxing rights over Hong Kong-source income shortfalls before any foreign IIR claim can apply. For in-scope MNE constituents operating in Hong Kong with ETRs below 15% under GloBE computation, Hong Kong collects the top-up rather than ceding it to the parent jurisdiction's IIR. This preserves Hong Kong's taxing rights on HK-resident entities and will seek QDMTT-qualified status under the OECD peer-review framework.
Undertaxed Profits Rule (UTPR): Part 2 of Schedule 61 contains the local-law UTPR provisions but these are expressly uncommenced — the effective date will be specified by gazette notice. The deferral pattern mirrors Singapore MEMTA 2024 and Canada's GMTA phased approach, and avoids preemptive bilateral friction with the United States over UTPR applicability to US-source income. The structural architecture is complete; activation awaits international consensus on UTPR treatment of GILTI-covered US entities.
The EUR 750 million consolidated annual revenue threshold (met in at least two of the four preceding fiscal years) is the standard GloBE threshold, consistent across all Pillar Two implementing jurisdictions. IRD letters were issued from October 2025 to in-scope MNE groups identifying notification and registration deadlines. IRD estimates incremental revenue of approximately HKD 15 billion per year from 2027–28.
Hong Kong's corporate profits tax rate is 16.5% (8.25% for the first HKD 2M under the two-tier regime) — nominally above the 15% GloBE floor. However, a range of offshore-income exemptions, patent-box regimes, and concessionary rates (treasury centres, professional reinsurance, ship management) have historically produced effective rates below 15% for certain inbound holding, treasury, and IP structures. The HKMTT closes this gap: any Hong Kong constituent entity whose GloBE ETR falls below 15% will face a Hong Kong domestic top-up charge rather than leaving the shortfall available for a foreign IIR claim. Mainland China-outbound vehicles routed through Hong Kong regional HQ structures are particularly affected; the long-standing appeal of HK as a low-friction conduit for outbound Chinese FDI into Asia-Pacific is structurally reduced for MNE groups in scope.
Hong Kong is the second major Asia-Pacific low-corporate-tax-rate financial hub to adopt Pillar Two after Singapore's MEMTA 2024 (Ord. No. 36 of 2024, effective 1 January 2025). Together with Switzerland (MindStV QDMTT, effective 1 January 2024), UAE (Cabinet Decision No. 142 of 2024), and the EU directive cluster, Hong Kong's adoption completes the four-hub low-corporate-tax-conformance cluster that effectively forecloses the "hold-out hub" strategy for EUR 750M+ MNE groups.
all HK-UPE MNE groups with global consolidated revenue ≥ EUR 750M face IIR liability as top-up collectors for their global low-taxed entities from fiscal year 2025 onward.
MNE with a Hong Kong subsidiary, treasury centre, IP holding vehicle, or regional HQ, and group revenue ≥ EUR 750M, faces HKMTT (QDMTT) on HK-source income shortfalls. The HKMTT displaces parent-jurisdiction IIR claims on HK-resident entities.
(9988.HK), and other mainland-China MNEs using Hong Kong as a secondary listing and treasury-management hub face HKMTT exposure if their HK-entity ETR is below 15%.
companies for mainland-China outbound FDI to Asia-Pacific, Africa, and the Middle East is reduced for in-scope groups — the traditional soft-arbitrage value of below-15% effective rates in HK holding entities is closed. Smaller groups below EUR 750M are unaffected.
instruments (treasury centre concessions, patent-box rates) toward QRTC-structured formats (refundable credits paid within ≤4 years) that preserve economic value under the GloBE QRTC carve-out without suppressing ETR below 15%.
backstop charges from HK-resident UPEs on low-taxed entities in non-UTPR jurisdictions. Activation timing will depend on international consensus, likely tied to the US GloBE conformance decision and the HK-US double-tax arrangement framework.
from entities covered only by GILTI?
what timeline?
HK's HKMTT closes the sub-15% ETR arbitrage for large groups?
treasury activities) — will IRD issue guidance on QRTC-compatible restructuring?
Transitional CbCR Safe Harbour framework to ease compliance for MNEs in the initial years?