Commonwealth Places (Mirror Taxes) Act 1998

Key statutory concepts are definitions in s 3 and structural mechanisms in Parts 2 and 3.

• Applied law. A State taxing law (or parts of it) that is applied to a Commonwealth place under this Act is an “applied law” (s 3 definitions read with s 6). Applied laws operate as Commonwealth laws in relation to Commonwealth places, but subject to any modifications made under s 8 (s 6(4)).
• State taxing law and scheduled law. A “State taxing law” is expressed expansively: scheduled laws listed in Schedule 1, laws imposing tax prescribed by regulations, and any other State laws relevant to a scheduled or prescribed law (s 3 definition). “Scheduled law” is a law specified in Schedule 1 in relation to a State (s 3), and Schedule 1 of the Act lists specific State statutes (for example, New South Wales Duties Act 1997; Victoria Stamps Act 1958; Queensland Stamp Act 1894; WA Stamp Act 1921; and payroll, debits and financial institutions duty statutes for various States).
• Excluded provisions. The Act targets those parts of State taxing laws that are “excluded by paragraph 52(i) of the Constitution” , that is, provisions that would be inapplicable solely because s 52 of the Constitution makes State laws inapplicable in Commonwealth places (s 6(1) and s 3 definition “excluded by paragraph 52(i) of the Constitution”).
• Correspondence. The Act treats an applied law as corresponding to a State taxing law (s 3 definitions “corresponding applied law” and “corresponding State taxing law”), underpinning the requirement that proceedings, procedure and rights generally be treated as if they arise under the State law (s 11(1)).
• Modifications. The Commonwealth can modify applied laws through the regulations and State Treasurers by legislative instrument (s 8(1)-(2)). Modifications are limited to those necessary or convenient for (a) enabling effective operation as a Commonwealth law, and (b) ensuring the combined tax liability under applied law and the corresponding State taxing law is, as nearly as possible, the same as would have been payable under State law alone if the Commonwealth places were not Commonwealth places (s 8(4)(a)-(b)). The Act permits modifications to be backdated subject to the instrument’s registration (s 8(5)(a)); s 8(6) provides that regulatory modifications prevail over State Treasurer modifications where inconsistent.
• Arrangements with States. The Governor‑General may enter arrangements with State Governors to have State authorities exercise functions under applied laws (s 9(1)-(3)), and the Minister must publish the arrangement (s 9(4)). Section 6(6) conditions the operation of s 6 on such an arrangement being in force for the State.
• Jurisdiction and procedure. State courts may be invested with federal jurisdiction for matters arising under applied laws, exercised in accordance with the applied law (s 10(1)-(2)). Proceedings under an applied law are to be conducted “in the same manner” as under the corresponding State taxing law, and jury trial is mandated for indictable offences under applied laws (s 11(1)-(2)).
• Limitation of Commonwealth law in relation to applied laws. The Act removes the application of other Commonwealth laws to applied laws or things done under them, unless a Commonwealth law already applies to the State taxing law and a corresponding applied law exists, in which case the Commonwealth law applies to the applied law (s 20(1), (3)-(4)). Section 20(1A) expressly states that Chapter 2 of the Criminal Code does not apply in relation to applied laws.
• Financial treatment. Money received by the Commonwealth under an applied law is payable to the State (s 23(1)), subject to reduction by amounts the Commonwealth has paid under any applied law (s 23(3)). The Consolidated Revenue Fund is appropriated to make those payments (s 23(4)) and such receipts are not “other CRF money” under the PGPA Act (s 23(5)).

These statutory constructs are the levers that convert a State taxing regime into a Commonwealthly enforceable one for Commonwealth places while attempting, by modification powers, to maintain the taxpayers’ overall tax burden as close as possible to what it would have been under State law (s 8(4)(b)).

The Act affects multiple actors and classes of parties; the text identifies and structures who pays, who decides and who administers.

• Taxpayers and private persons. Individuals and entities carrying on acts, transactions or operations within, or connected with, Commonwealth places are the primary subjects of the applied laws. That includes employers with payroll obligations within Commonwealth places (schedules list payroll statutes), parties liable for stamp or duty obligations on instruments connected with Commonwealth places (schedules list stamp duties and duties statutes), and institutions potentially caught by financial-institutions duty or debits tax statutes where such statutes are scheduled (Schedule 1).
• Commonwealth. The Commonwealth receives amounts under applied laws and is liable to pay those amounts to the relevant State (s 23(1)). The Consolidated Revenue Fund is appropriated for payments under s 23 and for payments by the Commonwealth under an applied law (s 23(4)). The Commonwealth also makes decisions about entering arrangements with States through the Governor‑General (s 9), and it can make regulations prescribing modifications, subject to the limitations of s 8 (s 8(1); s 25).
• State governments and State authorities. States supply the substantive taxing laws by which liabilities are imposed. State Treasurers may prescribe modifications by legislative instrument (s 8(2)), and State authorities may exercise the same powers and functions in relation to convicted persons as they would under State law if an offence had been committed in the State (s 15(1)). The Act requires an arrangement with a State before s 6 takes effect in relation to that State (s 6(6)). Scheduled laws in Schedule 1 specify which State taxing statutes the Act contemplates mirror‑applying.
• State courts and judicial officers. The courts of a State are invested with federal jurisdiction for matters arising under applied laws, within the limits of their jurisdictions (s 10(1)). The jurisdiction is to be exercised in accordance with the applied law (s 10(2)). State courts will therefore hear and determine matters as if they were federal matters arising under applied law, subject to the restrictions on appeals described in s 10(5)-(7).
• Revenue and compliance administrators. State revenue offices, and Commonwealth agencies responsible for administering or receiving amounts under applied laws, are affected by the procedural alignment of applied laws with corresponding State taxing laws (s 11(1)), by the need to account for receipts and transfers between Commonwealth and State (s 23), and by evidentiary provisions such as s 16 which place evidentiary weight on certificates about land ownership.
• Legal and commercial counterparties. Firms involved in conveyancing, transactions on Commonwealth land, employers in Commonwealth sites, financial institutions transacting in Commonwealth places, and counsel litigating in tax and revenue matters that touch Commonwealth places will be affected by the translation of State tax duties into applied Commonwealth duties, the procedural rules (s 11), and evidentiary and validation provisions (ss 16, 17-19).

Who bears the cash cost? Practically, taxpayers who have taxable incidents in Commonwealth places face the immediate economic burden of the tax as imposed by the applied law. The Commonwealth acts as a conduit for amounts collected under applied law: it receives amounts and is liable to pay amounts equal to those receipts to the State (s 23(1)), subject to s 23(3). The Commonwealth is bound by the Act in all capacities (s 5) though the Crown is not made liable to be prosecuted for an offence (s 5).

Who decides? Several decision‑makers are named: the Governor‑General (who makes arrangements under s 9), the Minister (who must publish arrangements under s 9(4)), the State Treasurer (who may prescribe modifications by legislative instrument under s 8(2)), and the Governor‑General again (who makes regulations under s 25).

Where operation is conditional. For a State’s laws to have effect as applied laws under s 6, an arrangement with that State under s 9 must be in operation (s 6(6)). Therefore taxpayers and administrators should verify whether an arrangement exists for the State in question before assuming applied law obligations exist.

The Act creates duties, rights, and procedural rights that attach to taxpayers, authorities and courts. The following are the principal duties and rights created or preserved by the Act text.

Duties and liabilities of taxpayers and others

• Payment obligations under applied law. Where a State taxing law is applied as an applied law, the substantive tax liabilities and obligations under that law apply to acts, matters or things “in relation to” a Commonwealth place, subject to modifications (s 6(2), (4); s 8). These include liability to pay payroll tax, stamp duties, debits tax and financial institutions duty where those State statutes are scheduled (Schedule 1).
• No retrospective effect prior to 6 October 1997. Applied laws do not have effect in relation to amounts that would otherwise have become due for payment before 6 October 1997 (s 7(1)), and similar protection applies to stamp duty on instruments made before that date (s 7(3)). The law creates assumptions that all obligations arising before that date were fully and promptly complied with (s 7(2), (4)).
• Compliance with procedure. Proceedings under an applied law must be instituted and conducted in the same manner as under the corresponding State taxing law (s 11(1)(a)), and other proceedings in relation to core proceedings must likewise follow the corresponding State law (s 11(1)(b)). For indictable offences, trial must be by jury (s 11(2)).

Rights and procedural protections

• Continuation of proceedings. If proceedings were begun under a State taxing law and the court is satisfied that the State taxing law was excluded by s 52 of the Constitution and an applied law corresponds, the proceedings must be continued as though commenced under the applied law (s 12). This removes procedural uncertainty where proceedings started before a judicial determination that the place was a Commonwealth place.
• Appeal limitations and jurisdictional assignment. State courts are invested with federal jurisdiction to hear matters under applied laws, and the jurisdiction is to be exercised in accordance with the applied law (s 10(1)-(2)). However, if a State law prohibits appeal from such a court, then an appeal does not lie to the High Court unless special leave is granted (s 10(5)). Further, the High Court’s leave is required where an appeal’s grounds involve questions concerning s 52’s operation or interpretation in relation to a place (s 10(7)).
• Evidentiary presumptions and procedural tools. A certificate in writing by an authorised person about ownership of land is evidence of the matters stated and is taken to be duly given unless the contrary is proved (s 16(1)-(2)). Instruments referring to State taxing laws are to be read as referring to applied laws where relevant (s 19).
• Validation and extinguishment. Acts purportedly done under State taxing law that correspond to an applied law are taken to have been done under the applied law (s 18). Conversely, if a cause of action under the corresponding State taxing law has been extinguished, the cause of action under the applied law is also extinguished (s 17).

Commonwealth and State powers and duties

• Arrangements and delegation. The Governor‑General may arrange for a State authority to exercise or perform powers or functions under applied laws (s 9(1)-(3)); the Minister must publish the arrangement (s 9(4)). The State authority exercising such powers may exercise the same powers and functions as if the offence had been committed in the State (s 15(1)).
• Modifications. The Commonwealth may modify applied laws through regulations (s 8(1)). State Treasurers may prescribe modifications for their State’s applied laws by legislative instrument, excluding modifications intended only to overcome constitutional difficulties (s 8(2)). Modifications are limited to those necessary or convenient to enable effective operation as Commonwealth law or to preserve taxpayers’ combined tax liability as nearly as possible (s 8(4)).

Financial and administrative rights and obligations

• Receipt and payment. The Commonwealth receives amounts under applied laws but is obligated to pay amounts equal to amounts received to the relevant State (s 23(1)). Amounts payable by the Commonwealth under s 23(1) are reduced by amounts that the Commonwealth has paid under any applied law of the State (s 23(3)). The Consolidated Revenue Fund is appropriated for payments under s 23 and for payments by the Commonwealth under any applied law (s 23(4)).

Limitations on Commonwealth laws and exemptions

• Non‑application of Commonwealth laws. Subject to the Act, no Commonwealth law (other than an applied law) applies in relation to any applied law or anything done under it (s 20(1)). Chapter 2 of the Criminal Code is explicitly excepted from applying to applied laws (s 20(1A)). If a Commonwealth law did apply to a State taxing law and there is a corresponding applied law, the Commonwealth law also applies to the applied law (s 20(3)). Commonwealth provisions that exempt parties from Commonwealth taxes are, unless expressly so stated, not to be treated as applying to taxes under applied laws (s 21).

The Act therefore creates a web of duties mirroring State tax liability, procedural rights that align application with State law practice, and administrative duties for the Commonwealth and States in accounting and publication. The modification power and arrangement mechanism allocate decisions about fine‑tuning to the Commonwealth-by-regulation and State Treasurers-by-instrument, within the limits set out in s 8.

The Act frames penalties and enforcement primarily by importing State taxing law provisions as applied laws, and by prescribing the jurisdictional, procedural and evidentiary framework within which enforcement occurs.

Penalties under applied laws

• Offences and penalties created by State taxing law apply to Commonwealth places to the extent those provisions are excluded by s 52 and are applied under this Act (s 6(2)). The Act does not itself create new tax offences but imports the penal provisions of the applied State taxing laws subject to constitutional and modification limits (s 6(2)-(4)).
• Extinguishment and validation. If a cause of action under a corresponding State taxing law has been extinguished, then the cause of action under the corresponding applied law is also extinguished (s 17). Conversely, actions purportedly done under State taxing law are validated as having been done under the applied law where the State taxing law was excluded by s 52 and an applied law corresponded (s 18). These provisions preserve penal consequences where State proceedings have run their course and prevent gaps or duplicative liabilities.

Enforcement mechanisms and procedure

• Proceedings conducted as under corresponding State law. Core proceedings under an applied law must be instituted and conducted in the same manner as though they were under the corresponding State taxing law (s 11(1)(a)). This incorporates State procedural practices and limits. Any related proceedings, such as decisions to discontinue prosecution, must also follow the corresponding State taxing law’s practice (s 11(1)(b)).
• Trial by jury for indictable offences. The Act mandates that the trial on indictment of an offence against an applied law must be by jury (s 11(2)). That creates a constitutional procedural protection for serious offences imported into Commonwealth application.
• Jurisdictional allocation. State courts are invested with federal jurisdiction in matters under applied laws within the limits of their jurisdictions (s 10(1)). The jurisdiction is to be exercised in accordance with the applied law (s 10(2)). Section 10(3) contemplates that modifications under s 8 may be used to confer federal jurisdiction on a State court outside ordinary jurisdictional limits where necessary.
• Appeals. If a State law prohibits appeal from a court invested under s 10, then an appeal to the High Court does not lie without special leave (s 10(5)). Section 10(7) further restricts High Court appeals in matters where any ground involves a question as to the operation or interpretation of s 52 of the Constitution in relation to a place. For appeals from State or Territory courts (other than to the High Court), s 14 directs courts to deal with appeals as if the original proceedings were under the applied law where the court is satisfied that the State taxing law was excluded by s 52 and a corresponding applied law exists.

Evidentiary presumptions that assist enforcement

• Certificates about land ownership. In proceedings under an applied law, a certificate in writing by an authorised person setting out ownership or rights in land is admissible as evidence and is taken to be duly given unless the contrary is proved (s 16(1)-(2)). This places the evidentiary onus on defendants to disprove such documents and assists revenue administrators in proving title‑related taxable incidents.
• Instruments and references. Instruments or writings connected with Commonwealth places that refer to a State taxing law are to be read as referring to the applied law where relevant (s 19). This helps enforcement by avoiding interpretive friction in documents drafted with State law references.

Limitations on Commonwealth criminal law application

• Chapter 2 of the Criminal Code does not apply in relation to, or in relation to anything done under, an applied law (s 20(1A)). That means Commonwealth criminal definitions, elements or mechanisms in Chapter 2 (for example general criminal definitions and interpretations in the Criminal Code) are not available in proceedings under applied laws. Enforcement therefore uses the penal framework of the applied State laws as imported and modified.

Financial handling of penalties and receipts

• Receipts and payments. Amounts received by the Commonwealth under an applied law are to be paid to the State (s 23(1)), and the Commonwealth’s liability is reduced by amounts it has paid under any applied law (s 23(3)). The Consolidated Revenue Fund is appropriated for the purpose of payments under s 23 and payments by the Commonwealth under an applied law (s 23(4)). Receipts under applied laws are not “other CRF money” for purposes of the PGPA Act (s 23(5)), which has implications for internal Commonwealth financial management and accounting.

Administration and exercise of powers

• State authority exercise under arrangements. Where the Governor‑General has arranged with a State Governor under s 9, an authority of the State may exercise or perform the powers or functions under the applied laws (s 9(1)-(2)). Section 15 furthers this by permitting State authorities to exercise the same powers and functions in relation to convicted persons as if the offence had occurred in the State (s 15(1)). The Governor‑General retains powers and functions undisturbed by s 15(2).

The enforcement architecture therefore depends on importing State penal regimes, locating enforcement in State courts with federal jurisdiction, using State procedural practice, leveraging evidentiary certificates, and providing for financial transfers back to States. Practitioners should note the statutory imposition that the trial on indictment must be by jury (s 11(2)), the limitations on applying Commonwealth criminal provisions (s 20(1A)), and the formal requirement for State-Commonwealth arrangements to be in force for s 6 to operate (s 6(6)).

The Act sets out multiple positive and negative interaction rules between applied laws, State laws, Commonwealth laws, and the Constitution.

Constitutional limits and scope

• Constitutional basis. The Act itself states that it has effect only to the extent that it is an exercise of the Parliament’s legislative powers under paragraph 52(i), section 73, paragraph 77(iii), and paragraph 51(xxxix) so far as it relates to those heads (s 4). Section 6(3) similarly constrains applied laws so they do not extend to provisions a Commonwealth Parliament lacks authority to make applicable (s 6(3)). Practitioners must therefore read applied laws through the filter of the Commonwealth’s constitutional power to legislate in relation to Commonwealth places.
• Exclusions based on s 52. The Act only targets provisions of State taxing laws that are “excluded by paragraph 52(i) of the Constitution” (s 6(1) and s 3). Consequently, the mirror mechanism only operates where the State provision would otherwise be inapplicable by reason only of s 52.

Interaction with Commonwealth laws

• Non‑application of other Commonwealth laws by default. Except as provided in the Act, no Commonwealth law other than an applied law applies in relation to any applied law or anything done under it (s 20(1)). This is a strong non‑application rule. If, however, a Commonwealth law already applied to the State taxing law and a corresponding applied law exists, the Commonwealth law also applies to the applied law (s 20(3)). Commonwealth references to State taxing laws in other Commonwealth laws are taken to include references to applied laws (s 20(4)).
• Criminal Code carve‑out. Chapter 2 of the Criminal Code is excluded from applying to applied laws (s 20(1A)). This removes the Commonwealth’s general criminal definitions and interpretative devices contained in Chapter 2 from the governance of applied law offences.
• Commonwealth tax exemptions. A Commonwealth provision that exempts persons from taxes under Commonwealth law is, unless expressly stated, not to be treated as applying to taxes or charges under an applied law (s 21). This separation preserves the independence of the applied law’s tax net from Commonwealth exemptions, unless expressly extended.

Interaction with State law

• Procedural alignment with State law. Core proceedings under applied laws must be instituted and conducted as though they were proceedings under the corresponding State taxing law (s 11(1)). State procedural law therefore governs, to the extent the applied law maps to the State law.
• Preservation of State rights and procedures. Sections 22 and 24 provide saving provisions protecting the previous operation and accrued rights under applied laws or State taxing laws when a place ceases or becomes a Commonwealth place respectively (ss 22, 24). The Act states these provisions are “not intended to affect the operation of a State law” (s 22(5); s 24(5)). This language indicates the Act intends to preserve existing State legal effects despite changes in status of a place.
• Modifications by State Treasurers. State Treasurers are empowered to prescribe modifications of the applied laws of their State by legislative instrument (s 8(2)), subject to limitations. This is a formal mechanism allowing State executives to shape how their laws operate when mirrored, but the Commonwealth’s regulations also may prescribe modifications (s 8(1)). Where inconsistent, regulatory modifications prevail (s 8(6)).

Interaction with other Commonwealth statutes

• Legislation Act and regulations. The Act authorises regulations (s 25(1)). It also states that subsection 12(2) of the Legislation Act 2003 (which ordinarily restricts retrospective application of legislative instruments) does not apply to regulations under this Act (s 25(2)). Separately, s 8(5)(a) permits modifications to take effect from a date earlier than registration on the Federal Register of Legislation. These provisions together create capacity for retrospective modifications within the statutory framework the Act establishes.
• Public governance and accounting. Section 23(5) specifies that amounts received under an applied law are not “other CRF money” under s 105(2) of the Public Governance, Performance and Accountability Act 2013. Section 23(4) expressly appropriates the Consolidated Revenue Fund for payments required by s 23. These provisions interact with Commonwealth financial management regimes, prescribing a distinct treatment for applied law receipts.

Practical document‑level interactions

• Instruments and references. Instruments that refer to a State taxing law and that are connected with a Commonwealth place have their references read as references to the applied law where the State taxing law is excluded and an applied law corresponds (s 19). This prevents interpretive mismatches for documents drafted under State law when applied to Commonwealth places.
• Validation and continuity. Actions purportedly done under State taxing law are taken to have been done under the applied law where the State taxing law was excluded and an applied law corresponded (s 18). If a State cause of action is extinguished, the corresponding applied law cause is also extinguished (s 17). These provisions prevent duplication or gaps stemming from changes in legal status.

Limits and interplay with the High Court

• Appeals concerning s 52. Section 10(7) prevents appeals to the High Court on matters that involve a question as to the operation or interpretation of s 52 in relation to a place unless the High Court grants special leave. Section 10(5) contains a related restriction where State law prohibits appeals. These provisions limit the ability to obtain authoritative High Court determinations lightly in disputes involving s 52 questions and the status of places.

Overall, the Act creates a detailed interaction map: it imports State taxing laws into Commonwealth application for Commonwealth places, aligns procedure and evidence with State practice, excludes routine application of other Commonwealth laws to applied laws (with expressly stated exceptions), and allocates modification and arrangement powers between Commonwealth regulators and State Treasurers. Practitioners must therefore read tax obligations in Commonwealth places through multiple lenses: constitutional competence (s 4, s 6(3)), the text of the State taxing law as applied and as modified (s 6(4), s 8), the existence and content of State-Commonwealth arrangements (s 9), and the financial/logistical provisions governing receipts (s 23).

The provided text of the Act contains no explicit record of legislative amendments, dates of amendment, or marginal notes indicating subsequent variations. What the Act itself does provide on temporal operation and the possibility of retrospective effect are:

• Commencement. The Act commences on the day it receives Royal Assent (s 2). That is the baseline commencement rule contained in the text.
• Operative date protection. The Act protects taxpayers by stipulating that applied laws do not have effect in relation to amounts that would otherwise have become due before 6 October 1997 under the applied law (s 7(1)) and, separately, for stamp duties on instruments made before 6 October 1997 (s 7(3)). The Act further presumes that obligations arising before that date were fully complied with in determining whether an amount is or was payable (s 7(2), (4)). These are built‑in temporal limits applying from the Act’s commencement that guard against creating retrospective liabilities for that cut‑off period.
• Retrospective modifications authorised. The Act authorises modifications that may be expressed to take effect from a date earlier than the date on which the instrument prescribing the modifications is registered on the Federal Register of Legislation under the Legislation Act 2003 (s 8(5)(a)). Section 25(2) expressly disapplies subsection 12(2) of the Legislation Act 2003 (which ordinarily restrains retrospective application of legislative instruments) for regulations made under this Act. These provisions indicate the architecture permits, in some circumstances, retrospective application of regulatory or modification instruments.
• Priority of regulatory modifications. Where there is inconsistency between modifications under the regulations and those under the State Treasurer’s legislative instruments, the regulatory modifications prevail (s 8(6)). This establishes an intra‑statutory hierarchy for modifications.
• Appropriation and financial treatment note. Section 23(4) appropriates the Consolidated Revenue Fund for payments under s 23 and payments by the Commonwealth under an applied law. Section 23(5) provides that amounts received under an applied law are not “other CRF money” for the purposes of s 105(2) of the Public Governance, Performance and Accountability Act 2013. These provisions affect financial administration consequent on the Act’s operation.

Because the text provided does not supply a schedule of subsequent amending Acts, nor notes on history, readers should treat the Act’s text as a stand‑alone source. Any later amendments, repeals, or judicial modifications are not recorded in the supplied text and should be checked in printed or electronic legislative databases when conducting live compliance or litigation work. Practitioners should also be alert to the potential retrospective scope of regulations and State Treasurer instruments permitted by ss 8(5)(a) and 25(2) when assessing changes to the applied law over time.

The Act text supplied contains no reproductions of judicial decisions, no annotation of litigation, and no list of cases addressing the Act. The statute itself contains provisions that anticipate and shape litigation and appeals, and those provisions identify the legal issues likely to arise if disputes come before courts:

• Forum and jurisdictional questions. The Act invests State courts with federal jurisdiction in matters arising under applied laws (s 10(1)). Litigation is thus likely to take place in State courts sitting as federal jurisdictional courts, and questions of jurisdiction may arise about the limits within which a State court may be invested (s 10(1)-(4)). Modifications may be used to confer jurisdiction beyond ordinary limits (s 10(3)).
• Continuation of proceedings. Section 12 directs that proceedings commenced under a State taxing law must be continued as though they had been commenced under the applied law where a court is satisfied the State taxing law is excluded by s 52 and an applied law corresponds. Litigation could therefore involve transitional questions about proceedings instituted before a determination about the status of the place.
• Appeals and High Court leave. Sections 10(5)-(7) place constraints on appeals to the High Court, particularly where grounds of appeal involve questions about the operation or interpretation of s 52 in relation to places. Litigation will therefore raise strategic issues about appellate routes and the scope for obtaining High Court review.
• Scope of “excluded provisions”. The Act imports only those provisions of State taxing laws that are “excluded by paragraph 52(i) of the Constitution” (s 6(1), (2)). Litigation may focus on whether particular State provisions are so excluded or whether they extend beyond that category, triggering s 6(3)’s constitutional limitation that an applied law must not extend to what the Parliament lacks authority to make applicable (s 6(3)).
• Validity and modification issues. Litigation may raise issues about modifications under s 8: whether a modification is within the statutory limits (s 8(4)), whether a State Treasurer’s modification exceeds the permitted scope (s 8(2)), or whether a regulation purporting to modify an applied law complies with parliamentary power and s 25’s constraints. The priority provision in s 8(6) may also be the subject of dispute where State and Commonwealth modifications conflict.
• Evidence and procedural practice. The evidentiary presumption in s 16 about certificates of ownership of land being taken as duly given unless the contrary is proved may be challenged in litigated disputes over title and taxable incidents. Similarly, the requirement that proceedings under applied laws be conducted as though they were proceedings under the corresponding State taxing law (s 11(1)) raises issues about procedural rights and admissibility of evidence.
• Financial and accounting claims. Section 23 establishes the Commonwealth’s liability to pay amounts equal to amounts it receives under an applied law to the relevant State. Disputes may arise about the calculation of amounts payable, reductions under s 23(3), and whether amounts received are to be treated as Commonwealth receipts for other purposes in light of s 23(5).

Because no cases are supplied in the Act text, practitioners must consult up‑to‑date case law databases for reported decisions applying the Act. The statutory framework indicates areas of predictable litigation: jurisdiction and appeals (ss 10, 14), the existence and effect of applied laws and modifications (ss 6, 8), the continuation of proceedings (s 12), evidentiary presumptions (s 16), validation and extinguishment (ss 17-18), and financial transfer obligations between the Commonwealth and States (s 23). Where litigation raises constitutional questions about paragraph 52(i) of the Constitution or about limits of Commonwealth power under s 51, the Act’s explicit restrictions (s 4, s 6(3)) show these are central issues likely to attract judicial attention. Practitioners should therefore check reported decisions and unreported judgments dealing with these statutory points before forming litigation strategy.

The Act contains several traps for the unwary that arise from its structure, cross‑references and the interplay between Commonwealth and State decision‑making. The following points are concrete, statutory, and operational.

1. Application is conditional on State arrangements (s 6(6) and s 9). The mirror mechanism in s 6 does not operate for a State unless there is an arrangement in operation under s 9 with that State. Do not assume that because Schedule 1 lists a State law, it automatically applies as an applied law in relation to Commonwealth places in that State; check whether an arrangement under s 9 has been made and published (s 9(4)).

2. The Act does not create new offices (s 6(5)). Except where modifications expressly provide otherwise, the Act does not create offices, bodies, courts or tribunals. Agencies or private parties seeking new Commonwealth administrative mechanisms cannot rely on the Act to create them without explicit regulatory modification.

3. Procedural inheritance from State law (s 11(1)). Proceedings under an applied law are to be conducted in the same manner as under the corresponding State taxing law. This can import State procedural quirks, limitation periods, notice and assessment procedures, and statutes of limitation. Practitioners should map the applicable State procedure carefully; procedural defences available under federal statutes may not apply if they are inconsistent with State procedure as incorporated.

4. Commonwealth criminal provisions excluded (s 20(1A)). Chapter 2 of the Criminal Code does not apply to applied laws. Offences imported under applied laws should be litigated using the penal architecture of the State law as applied, not Commonwealth criminal elements or interpretive aids from Chapter 2.

5. Commonwealth tax exemptions do not automatically apply (s 21). If a Commonwealth law grants an exemption from Commonwealth taxes, that exemption does not automatically extend to taxes imposed under applied laws unless the exempting provision expressly so states. Entities that assume cross‑application of Commonwealth exemptions risk unexpected liabilities.

6. Evidence presumption in land certificates (s 16). Certificates by authorised delegates under the Lands Acquisition Act 1989 are taken as evidence and to be duly given unless the contrary is proved. That shifts the evidentiary burden onto defendants when these certificates are used, which can be decisive in land‑linked tax disputes.

7. Validation and extinguishment can close off remedies (ss 17-18). If a State cause of action was extinguished, the corresponding applied law cause is extinguished (s 17). Conversely, acts purportedly done under State taxing law are validated under an applied law (s 18). Parties must check whether past State‑law proceedings or actions have already extinguished potential claims.

8. Money flows and accounting oddities (s 23). Amounts received by the Commonwealth under an applied law must be paid to the State (s 23(1)), but payments by the Commonwealth reduce the Commonwealth’s liability under s 23(3). Receipts under applied laws are not “other CRF money” under the PGPA Act (s 23(5)), and the CRF is appropriated to make the payments (s 23(4)). These provisions can cause accounting and cash‑flow issues for Commonwealth agencies receiving money under applied laws; agencies must track receipts and transfers strictly.

9. Retrospective modification risk (ss 8(5)(a), 25(2)). The Act permits modifications to be expressed to take effect from earlier dates than registration (s 8(5)(a)) and disapplies the usual Legislation Act restraint on retrospective effect for regulations under this Act (s 25(2)). Practitioners should be alert to the possibility of retrospective regulatory adjustments and check the Federal Register for instruments that purport to operate retrospectively.

10. High Court appeal constraints (s 10(5)-(7)). Where a State law prohibits appeal from a court invested with federal jurisdiction, an appeal to the High Court does not lie without special leave (s 10(5)). If an appeal involves interpreting s 52 in relation to a place, leave of the High Court is required (s 10(7)). These constraints affect appellate strategy and the ability to seek authoritative constitutional guidance.

11. Interaction inconsistencies: regulatory modifications prevail (s 8(6)). When the Commonwealth regulations and State Treasurer instruments conflict in their modifications, regulatory modifications prevail. Parties should check both Commonwealth regulations and State Treasurer legislative instruments when assessing applied law text.

12. Schedule specificity. The Act’s schedule lists specific State taxing statutes. Only those scheduled laws, plus State laws prescribed by regulation as State taxing laws, are captured by the definition (s 3). A practitioner cannot assume an unlisted State tax will be mirrored unless it has been prescribed.

13. Limits on Crown prosecution (s 5). The Act binds the Crown in all capacities but does not make the Crown liable to be prosecuted for an offence (s 5). This can produce different enforcement dynamics where the Crown itself is the actor subject to an applied law.

14. Instruments referencing State taxing laws are read as referencing applied laws (s 19). This can create unexpected consequences where older documents cite State law; they will be treated as referencing applied law where connected to Commonwealth places.

Each of these are concrete statutory features. They create practical risks around assumptions that State law automatically applies, around procedural and evidentiary differences, around financial accounting of receipts, and around the jurisdictional architecture for litigation and appeals. Practitioners and administrators should verify arrangements, modifications, and instruments before relying on a particular legal posture.

Compliance requires checks at the level of jurisdictional status, the specific applied law text (including modifications), procedural steps, financial administration and recordkeeping. The following is a practical checklist and action guidance tied to the statutory text.

1. Identify whether the place is a “Commonwealth place”. The Act applies only to places that are “Commonwealth place” as defined in s 3 (a place referred to in paragraph 52(i) of the Constitution, other than the seat of government). For every site or transaction, confirm whether the location is within a Commonwealth place and whether it is excluded from State law coverage by s 52 prior to treating any State law as an applied law.

2. Verify whether an arrangement under s 9 is in force for the relevant State. Section 6(6) makes the application of State taxing laws to Commonwealth places conditional on an arrangement under s 9 being in operation for that State. The Minister must publish arrangements, variations or revocations by notifiable instrument (s 9(4)). Check the published instruments to confirm whether s 6 is effective for the State concerned.

3. Determine which State taxing laws are scheduled or prescribed. Consult Schedule 1 for scheduled laws listed for the State and check for any State taxing laws prescribed by regulation under s 3 and s 8(1). Only scheduled laws and prescribed laws fall within the State taxing law definition.

4. Obtain and compare the corresponding State taxing law and any applied‑law text. Because applied laws operate “according to their tenor” as in force (s 6(2)), evaluate the State taxing law in force at the relevant time and any modifications prescribed under s 8. Check both Commonwealth regulations and State Treasurer legislative instruments for modifications (s 8(1)-(2)); remember regulations take precedence over State Treasurer instruments in the event of inconsistency (s 8(6)).

5. Check operative dates and historical assumptions. Apply the operative date protections in s 7: applied laws do not create liabilities for amounts that would have been payable before 6 October 1997 (s 7(1), (3)), and earlier obligations should be assumed fully complied with when determining prior liabilities (s 7(2), (4)). When dealing with instruments made before that date, assume they were lodged and assessed for stamp duty where relevant (s 7(4)).

6. Review modification instruments for backdating. Modifications may be expressed to take effect from earlier dates (s 8(5)(a)), and regulations under this Act are not subject to subsection 12(2) of the Legislation Act 2003 regarding retrospective instruments (s 25(2)). When a modification adversely affects a taxpayer, confirm the instrument’s effective date and the statutory authority for retrospective effect.

7. Prepare for State procedural practice in enforcement and disputes. Proceedings under an applied law must be instituted and conducted as under the corresponding State taxing law (s 11(1)), and indictable offences are tried by jury (s 11(2)). Engage counsel familiar with the State’s tax procedural rules and the way State courts exercise federal jurisdiction (s 10(1)-(2)).

8. Handle evidentiary documents carefully. Certificates regarding land ownership by an authorised person are evidence and presumed duly given unless contrary proof is adduced (s 16). Where land or title facts are central, expect revenue authorities to rely on such certificates and prepare to meet the evidentiary burden of rebuttal.

9. Account for receipts and payments under s 23. If the Commonwealth receives amounts under an applied law, those amounts will be payable to the State (s 23(1)); payments by the Commonwealth reduce the liability under s 23(3). Ensure financial systems track receipts attributable to applied laws separately, and ensure transfers to States are timely and accurately calculated in accordance with s 23.

10. Do not assume Commonwealth exemptions apply. Unless a Commonwealth exempting provision expressly states it applies to taxes under applied laws, do not treat Commonwealth exemptions as covering applied-law taxes (s 21). Confirm exemption language expressly extends to applied laws if relied upon.

11. Monitor regulatory and State Treasurer instruments. Because regulatory modifications can supersede State Treasurer instruments (s 8(6)) and because the Commonwealth may regulate for effective operation (s 8(4)(a)), monitor the Federal Register and State registers for changes. Pay special attention to modifications that change liability rules, assessment procedures, or administrative powers.

12. Check appeal routes and limits. Be mindful that appeals involving questions about s 52 in relation to places require High Court special leave (s 10(7)), and where State law prohibits appeal from a court, an appeal to the High Court does not lie without special leave (s 10(5)). Build appeal planning around these constraints.

13. Maintain records of instruments and documents connecting acts to Commonwealth places. Instruments or writings connected with a Commonwealth place that contain a reference to State taxing law will be treated as referring to the applied law (s 19). Keep contemporaneous evidence tying transactions to Commonwealth places and maintain copies of relevant instruments.

14. If undertaking a transaction involving land, check for extinguishment issues. If a State cause of action was extinguished before mirror application, the applied law cause is extinguished too (s 17). Validate that no prior State extinguishing event affects present claims.

15. Engage with State revenue offices early. Because State Treasurers may prescribe modifications (s 8(2)) and State authorities may exercise powers under arrangements (s 9), early engagement with State revenue administrations will identify how a particular State will administer applied laws in practice.

This compliance checklist maps statutory duties and administrative requirements in the Act to practical steps. For transactional counsel, the crucial starting points are: confirmation of Commonwealth‑place status, evidence an arrangement under s 9 exists for the State, identification of the relevant scheduled or prescribed State taxing law, and review of modification instruments and regulations altering the applied law. For revenue administrators and Commonwealth agencies, the immediate tasks are establishing financial tracking for applied law receipts, coordinating transfers to States under s 23, and ensuring published arrangements under s 9 are accessible and known to affected parties.