Statute Details
- Title: Income Tax (Singapore — Australia) (Avoidance of Double Taxation Agreement) (Modifications to Implement Multilateral Instrument) Order 2019
- Act Code: ITA1947-S256-2019
- Type: Subsidiary Legislation (SL)
- Authorising Act: Income Tax Act (Cap. 134), section 49(7)
- Enacting body: Minister for Finance
- Made on: 29 March 2019
- Commencement: 1 April 2019
- Status: Current version as at 27 March 2026
- Key provisions (as shown in extract): Sections 1–4; Schedule (amending provisions)
- Related instruments referenced: Income Tax (Singapore — Australia) (Avoidance of Double Taxation Agreement) Order 1969 (O 6); Protocols and Second Protocol; and the Multilateral Convention (MLI) on BEPS
- Notable amendments shown in timeline: Amended by S 407/2019 (effective 1 April 2019) and S 654/2020
What Is This Legislation About?
The Income Tax (Singapore — Australia) (Avoidance of Double Taxation Agreement) (Modifications to Implement Multilateral Instrument) Order 2019 (“the Order”) is Singapore’s domestic legal mechanism for updating the tax treaty framework between Singapore and Australia. In practical terms, it amends the existing Singapore–Australia double tax agreement (“the Agreement”) so that it reflects obligations Singapore has undertaken under the Multilateral Convention to Implement Tax Treaty Related Measures to Prevent Base Erosion and Profit Shifting (the “MLI”), signed in Paris on 24 November 2016.
Singapore and Australia already had a bilateral tax treaty arrangement. However, the global BEPS project led many jurisdictions to adopt the MLI, which modifies tax treaties through a multilateral approach rather than renegotiating each bilateral treaty from scratch. This Order therefore does not create a new treaty; it modifies the existing Agreement to incorporate treaty-related BEPS measures that are implemented through the MLI.
For practitioners, the key point is that the Order is a treaty implementation instrument with carefully calibrated effective dates for different categories of tax and for different procedural contexts (for example, when a “case” is “presented”). These timing rules can be decisive when advising on treaty relief, withholding tax positions, and dispute or competent authority processes.
What Are the Key Provisions?
Section 1 (Citation and commencement) provides the formal identity of the Order and states that it comes into operation on 1 April 2019. This is the baseline date from which the Order’s modifications begin to have legal effect, subject to the more detailed effective-date rules in section 4 and the Schedule.
Section 2 (Purpose) explains what the Order is doing and why. Section 2(1) states that the Order amends the arrangements between Singapore and Australia as specified in the Schedule to the 1969 Agreement Order, and that those arrangements have already been modified previously by: (a) a Protocol (1990) and (b) a Second Protocol (2010). The Order then modifies the Agreement further to give effect to Singapore’s obligations under the MLI.
In plain language, section 2 confirms that the Order is a BEPS-driven treaty update. It is not merely administrative; it is intended to ensure that the treaty text and treaty operation align with the MLI’s treaty-related measures to prevent base erosion and profit shifting.
Section 3 (Amendment of Agreement) is the operative provision: it provides that the provisions of the Agreement are amended “in the manner set out in the Schedule.” The Schedule is therefore central. While the extract provided does not reproduce the Schedule’s detailed amendments, section 3 makes clear that the legal effect of the Order depends on the specific textual and interpretive changes contained in the Schedule.
Section 4 (Entry into effect) sets out the temporal scope of the amendments. This is often the most practically important part of treaty-modifying legislation because it determines whether a taxpayer can rely on the modified treaty provisions for a given period and for a given type of tax.
Section 4(1) provides that paragraph 3 of the Schedule applies to any tax paid, deemed paid, or liable to be paid before, on or after 1 April 2019. This is a broad retrospective/retroactive reach for that particular paragraph—meaning that for the matters covered by paragraph 3, the modified rules can affect taxes across time, not only prospectively.
Section 4(1A) and (1B), inserted by S 407/2019 effective 1 April 2019, address how paragraph 2 of the Schedule applies to “a case presented” on or after 1 April 2019, without regard to the basis period to which the case relates. This is a procedural timing rule. It means that the relevant trigger is the date the case is presented (for example, in a dispute or competent authority context), not the accounting or tax basis period of the underlying income.
However, section 4(1B) provides a limitation: the “no regard to basis period” rule does not apply to a case that was not eligible to be presented immediately before 1 April 2019. This carve-out is designed to prevent unfairness or to respect procedural eligibility constraints under the applicable framework.
Section 4(2) then sets effective dates for all other paragraphs of the Schedule, split by tax type and withholding status:
- Taxes withheld at source: apply to amounts paid, deemed paid, or liable to be paid (whichever is earliest) on or after 1 January 2020.
- Taxes other than those withheld at source: apply where the income is derived or received in a basis period beginning on or after 1 October 2019.
These distinctions reflect how withholding tax and non-withholding tax regimes operate in practice. For withholding tax, the relevant event is typically the payment (or deemed payment) date. For other taxes, the relevant event is the basis period in which income is derived or received.
How Is This Legislation Structured?
The Order is structured in a conventional format for Singapore tax treaty subsidiary legislation:
(1) Enacting formula and short provisions: The Order begins with the enacting formula under section 49(7) of the Income Tax Act, followed by sections 1 and 2 that identify the instrument and state its purpose.
(2) Operative amendment provision: Section 3 provides that the Agreement is amended according to the Schedule.
(3) Effective date provisions: Section 4 governs when the amendments take effect, including special rules for particular Schedule paragraphs and different categories of taxes.
(4) The Schedule: The Schedule contains the actual treaty modifications. For practitioners, the Schedule is where the substantive treaty text changes are set out (for example, modifications to specific articles or interpretive provisions). Even though the extract does not reproduce the Schedule, the legal architecture makes the Schedule the decisive source for the exact modifications.
Who Does This Legislation Apply To?
This Order applies to persons and transactions within Singapore’s tax system that interact with the Singapore–Australia tax treaty. In practice, it affects:
- Singapore taxpayers claiming treaty relief for cross-border income (e.g., dividends, interest, royalties, services income) involving Australia;
- Australian taxpayers
- Tax administrators and dispute resolution bodies applying the treaty as modified, including competent authority processes where relevant.
The scope is not limited to a specific industry or type of entity. Instead, it is triggered by the existence of cross-border tax consequences under the Singapore–Australia treaty framework and by the timing rules in section 4. The effective dates mean that the same taxpayer may need to consider different treaty versions for different withholding periods or basis periods.
Because the Order is designed to implement the MLI, it may also affect how treaty provisions are interpreted and applied—particularly where MLI measures relate to anti-abuse concepts, treaty interpretation, or procedural mechanisms. Even when the taxpayer’s underlying income is unchanged, the legal standard for treaty entitlement may shift due to the modified treaty text.
Why Is This Legislation Important?
This Order is important because it operationalises Singapore’s commitment to the BEPS project through the MLI. For tax practitioners, the practical significance lies in how treaty modifications can change the availability and conditions of treaty relief, and how they can alter the timing and procedural handling of claims.
First, the Order’s effective date framework is highly consequential. The split between withholding taxes (from 1 January 2020) and other taxes (basis periods beginning 1 October 2019) means that treaty positions must be reviewed with a period-by-period approach. A blanket assumption that the treaty “changed on 1 April 2019” may be incorrect for many withholding tax scenarios.
Second, the procedural rule in section 4(1A) and (1B)—linking the application of paragraph 2 to the date a “case” is presented—highlights that treaty modifications can interact with dispute timelines. Where a taxpayer is considering filing or presenting a case (for example, under a competent authority or dispute mechanism), counsel must assess whether the case qualifies under the eligibility carve-out and whether the basis period is relevant.
Third, because the Order amends the Agreement in the Schedule, it may affect substantive treaty articles and interpretive rules. Even without the Schedule text in the extract, the legal mechanism is clear: the treaty is being updated to reflect MLI measures. In practice, this can influence treaty entitlement analysis, documentation requirements, and the risk profile of treaty claims.
Related Legislation
- Income Tax Act (Cap. 134) — in particular, section 49(7) (authorising power for treaty-related subsidiary legislation)
- Income Tax (Singapore — Australia) (Avoidance of Double Taxation Agreement) Order 1969 (O 6)
- Income Tax (Singapore — Australia) (Avoidance of Double Taxation Agreement) (Supplementary) Order 1990 (O 6C)
- Income Tax (Singapore — Australia) (Avoidance of Double Taxation Agreement) Order 2010 (G.N. No. S 694/2010) — Second Protocol
- Multilateral Convention to Implement Tax Treaty Related Measures to Prevent Base Erosion and Profit Shifting (MLI), Paris, 24 November 2016
- S 407/2019 (amending section 4(1A) and (1B), effective 1 April 2019)
- S 654/2020 (amending the Order; effective date as shown in the legislation timeline)
Source Documents
This article provides an overview of the Income Tax (Singapore — Australia) (Avoidance of Double Taxation Agreement) (Modifications to Implement Multilateral Instrument) Order 2019 for legal research and educational purposes. It does not constitute legal advice. Readers should consult the official text for authoritative provisions.