Establishes a single set of administrative rules for a group of State taxation laws, and gives the Commissioner of State Taxation broad powers to assess, collect and enforce those taxes (see s 4; s 7; s 8).
Sets out how assessments and reassessments are made, including taxpayer-requests for assessment (s 8–10), limits on reassessment (5-year rule with exceptions, s 10(4)), and the form and service of assessments (s 14).
Creates processes for refunds (who can apply, time limits and form requirements, s 18–24), and allows the Commissioner to offset refunds against other tax liabilities (s 22).
Imposes interest and penalty tax for tax defaults, with the interest rate defined as the market rate plus 8% per annum (s 25–29) and penalty tax set at 25% (or 75% for deliberate defaults) of unpaid tax, subject to reductions for voluntary disclosure (s 30–34; s 31(1)–(2)).
Authorises special tax return arrangements for specified taxpayers or agents and allows conditions and exemptions to be imposed (s 35–40).
Contains a specific anti‑avoidance regime: Part 6A treats schemes entered into for the sole or dominant purpose of avoiding tax as tax avoidance schemes; the Commissioner may assess the tax avoided and treat the default as deliberate (s 40A–40I).
Provides collection powers: recover unpaid tax as a debt (s 41), pursue jointly or severally liable persons (s 42), require third parties to pay amounts held for taxpayers (s 43), and impose duties on agents and trustees who control taxpayer assets (s 44).
The Taxation Administration Act 1996 establishes the administrative framework for assessing, collecting, enforcing and disputing taxes that are specified as "taxation laws" in South Australia (see s 4). Mechanically, it centralises the administration and enforcement functions in a Commissioner of State Taxation who has broad powers to assess (s 8), reassess (s 10), collect as a debt (s 41), require information and records (s 70), enter and inspect premises (s 71), and obtain search warrants (s 72). The Act sets detailed requirements for record keeping (Pt 8; ss 48-53), creates statutory interest and penalty regimes for tax defaults (Pt 5; ss 25-34), authorises special return arrangements (Pt 6; ss 35-40), and creates a distinct statutory response to tax avoidance schemes (Pt 6A; ss 40A-40I). It also prescribes the objection and appeal route (Pt 10; ss 82-99), and confers secrecy obligations and permitted disclosure rules for tax officers (Pt 9 Div 3; ss 77-81).
The Act uses written notices and formal instruments as the primary means of giving effect to exercise of power: assessments must be in writing and in a Commissioner‑approved form (s 14); requirements to produce records are by written notice (s 70); approvals for special return arrangements are by written notice (s 35); and certain decisions are expressly declared non‑reviewable (s 5). Several decisions are non‑reviewable by express provision (for example, refusals under s 9(4), variation or cancellation of approvals under s 38(1), refusal to determine refund applications under s 21(1), and many others listed across the Act).
The Act defines enforcement mechanics: unpaid assessed tax is recoverable as a debt (s 41), the Commissioner may collect from third parties holding money for a taxpayer by written notice (s 43), and persons with possession/control of a taxpayer’s assets (agents, trustees) have duties to set aside assets for tax liabilities (s 44). Interest on tax defaults is charged daily at the market rate plus 8 per cent per annum (s 26), with procedural minima (s 27). Penalty tax is imposed for defaults, with rates set at 75 per cent for deliberate defaults and 25 per cent otherwise, subject to reductions for sufficient disclosure (s 31).
Current sections
Direct links to the current provisions in Taxation Administration Act 1996.
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Requires taxpayers to keep specified records in English for at least five years and makes a range of record‑keeping and disclosure failures offences (s 48–59).
Gives investigative powers to the Commissioner and authorised officers, including notices to produce information (s 70), entry and inspection powers and seizure (s 71), and search warrants (s 72). It limits the use of self‑incriminating material in criminal proceedings (s 74).
Establishes secrecy and permitted disclosure rules for tax officers, and allows the Commissioner and public sector agencies to collect and disclose certain reportable information to the Commonwealth (s 76D–81F, including the reportable‑information regime s 81A–81F). A recent insertion (s 78A) authorises disclosure in connection with a Commonwealth Help to Buy arrangement.
Provides an internal review path: objections to assessments are made to the Minister (s 82–90) and appeals from the Minister's decision lie to the Supreme Court (s 92–99). There are prescribed time limits and payment conditions for appeals (e.g. 60 days for objections, s 86; 50% payment required to appeal, s 93).
Specifies miscellaneous administrative matters: methods of payment (s 101), valuation of foreign currency (s 103), writing off tax (s 104), obligations of corporations to appoint a public officer and related liabilities (s 105), and evidentiary presumptions for Commissioner documents (s 115).
Who it affects
Taxpayers and persons who may be liable for State taxes under the listed taxation laws (s 4; definition of taxpayer in s 3).
Tax agents and other persons engaged in preparing returns (s 3; s 11).
Corporations and those involved in corporate management (liability rules at s 110; corporate penalties s 111).
Persons who hold money for taxpayers (third parties who can be required to pay under s 43) and agents/trustees who control taxpayer assets (duties under s 44).
Public sector agencies and the Commonwealth in relation to reportable information (s 81A–81F).
The Commissioner, Deputy Commissioners and authorised officers (appointment, delegation and investigative powers: s 60–68; s 66).
Why it matters (purpose claims, costs and incentives, and implementation mechanics)
Stated purpose: to provide the general administrative and enforcement framework for other taxation laws (s 7). Mechanically the Act centralises assessment, collection, investigation and dispute‑resolution powers in the Office of the Commissioner (s 61; s 8; s 41; s 70; Part 10).
Who decides: the Commissioner holds wide discretion to make assessments, grant special arrangements, require records, conduct audits and remit interest or penalty tax (examples: s 8; s 35; s 49; s 25(1) & s 29; s 34). Many of those decisions are declared non‑reviewable (s 5) or are expressly non‑reviewable elsewhere in the Act (see s 10(5); s 13(3); s 21(2); s 22(3); s 23(2); s 29(2); s 34(2); s 36(3); s 37(3); s 38(2); s 46; s 49(3); s 53(3); s 105(9); s 101(6)). That concentrates practical decision‑making discretion in the Commissioner (s 61).
Who pays / financial incentives and costs: taxpayers pay assessed tax, interest (market rate + 8% p.a., s 26) and penalty tax (25% or 75% of unpaid tax depending on whether the default is deliberate, s 31). The law reduces penalty for sufficient voluntary disclosure (s 31(2)(a)–(b)), creating a mechanical incentive to disclose issues before or during audit. Minimum thresholds (no interest or penalty under $20, s 27 and s 32) limit administrative overhead on very small amounts.
Compliance burden: record‑keeping obligations (English language requirement s 52; five‑year retention s 53), obligations to produce documents and attend for examination (s 70), and criminal penalties for false or misleading information or deliberate evasion (s 50; s 55; s 59). Penalties for non‑compliance and many procedural offences carry maximum fines (commonly $10,000) and more serious deliberate evasion can attract imprisonment (s 59).
Enforcement mechanisms and risks: investigative powers include compulsory production notices (s 70), entry and seizure (s 71), and search warrants (s 72). The Commissioner may recover unpaid tax as a debt and pursue third parties or agents/trustees (s 41; s 43; s 44). The Act allows sharing of reportable information with the Commonwealth (s 81C) and directs public agencies to collect and disclose such information (s 81D), which operationally shifts some compliance costs onto agencies and data providers (s 81E–81F).
Trade‑offs and implementation considerations: concentration of discretion in the Commissioner speeds administrative action but limits judicial or tribunal review because of numerous non‑reviewable decisions (s 5; examples above). Approvals and exemptions may be granted to specified taxpayers or agents (s 35) and can be made subject to binding conditions (s 37–39); that creates the capacity for targeted administrative relief but means those decisions (including refusals) are often not subject to external review (s 36(3)). The five‑year reassessment limit (s 10(4)) balances finality for taxpayers against the Commissioner’s power to reassess in cases of deliberate defaults. The anti‑avoidance Part 6A (s 40A–40I) lets the Commissioner recharacterise schemes and assess the tax avoided, and prescribes that those avoided amounts are treated as deliberate defaults (s 40E), which increases penalties and interest exposure.
Concentrated benefits and diffuse costs: the Act permits approvals and exemptions for particular taxpayers or classes (s 35–39) — these produce benefits concentrated on named or classed recipients while the administrative and compliance architecture (record keeping, audits, reporting to Commonwealth under s 81A–81F) spreads costs across taxpayers and data providers. The Commissioner may direct public agencies to collect reportable information (s 81D), shifting collection tasks to agencies.
Practical effects on private choice and business operations: businesses must maintain accessible, English language records for five years (s 48; s 52; s 53), respond to Commissioner notices (s 70), and may face collection actions against monies held by third parties (s 43). Corporate officers and persons managing businesses can incur parallel liabilities where corporate offences occur (s 110; s 111).
Key implementation and legal‑process features to note
Many Commissioner decisions are non‑reviewable (s 5 and cross‑references above). Appeals that are available proceed first by objection to the Minister (s 82–90) and then to the Supreme Court (s 92–99); appeals can be subject to payment conditions (s 93).
Interest and penalty rates and calculation methods are prescribed (s 25–31), including the interest formula (market rate + 8%, s 26) and conduct‑based adjustments to penalty tax (s 31(2)).
Information sharing with the Commonwealth is specifically enabled (s 81A–81F) and particular disclosures (e.g. for Help to Buy) are authorised by inserted provisions (s 78A).
Overall mechanical effect: centralises State tax administration in the Commissioner, provides detailed powers for assessment, information gathering and enforcement, sets fixed rules for interest and penalties, creates an administrative approval mechanism and an anti‑avoidance regime, and prescribes record‑keeping, secrecy and reportable‑informationsharing arrangements that together shape taxpayer reporting and compliance costs (see Parts 3–10, particularly s 8; s 18; s 25–34; s 35–40; s 40A–40I; s 41–44; s 48–59; s 70–76; s 81A–81F; s 82–99).
The Act also governs evidentiary presumptions (s 115), delegation and authorisation of officers (ss 66-68), disclosure of information for Commonwealth reporting (Pt 9 Div 4; ss 81A-81F), and corporate and management liability (ss 105, 110-111). The Act binds the Crown (s 6) and incorporates transitional provisions relevant to the staged transfer of pre‑existing tax administration powers (Schedule).
All references in this note are to the sections of the Act printed in the provided text.
Main concepts
The Act organises tax administration around a small set of legal and operational concepts that drive its mechanics.
Taxation law and scope: The Act defines which statutes it administers (s 4). That list includes this Act and several specified Acts, and the Governor may declare other corresponding laws (s 3(2)). Part 2 clarifies the Act’s purpose as providing general admin and enforcement provisions for the other taxation laws (s 7).
Assessment and reassessment: The Commissioner has express power to make assessments and reassessments (ss 8-10). Assessments may find that no liability exists (s 8(2)). Reassessments generally must follow the Commissioner’s legal interpretations and practices at the time of the original assessment unless legislative change requires departure (s 10(2)). A reassessment window is limited to five years from the initial assessment except with the taxpayer’s agreement or where there has been a deliberate tax default (s 10(4)).
Information, records and disclosure: Taxpayers and agents must include all information necessary for proper assessment in instruments and returns (s 11). The Commissioner may require production of records and attendance for examination (s 70), and may require that records be kept in English and be readily producible (ss 51-52). There are strict secrecy duties on tax officers (s 77) with specified permitted disclosures (s 78), and a separate scheme enabling collection and disclosure of reportable information for Commonwealth tax reporting (ss 81A-81F).
Interest and penalty tax: Interest on defaults is calculated daily and charged at market rate plus 8 percentage points (s 26), with a $20 threshold below which interest or penalty is not payable (ss 27, 32). Penalty tax applies in addition to interest (s 30), with substantial percentages and prescribed adjustments depending on conduct and disclosure (s 31).
Tax avoidance: Part 6A treats schemes with sole or dominant purpose of avoiding tax as taxable in an amount equal to the tax avoided; if the Commissioner assesses on this basis the default is treated as deliberate and the liability is taken to arise on the date the tax would have been payable (ss 40B-40E). The Commissioner must give reasons for such an assessment (s 40F). The statutory test includes specific matters to be taken into account (s 40D).
Collection and third‑party liability: The Commissioner may recover unpaid tax as debt (s 41), pursue joint and several liabilities (s 42), and require third parties to pay money held for taxpayers (s 43). Persons holding or managing taxpayer assets as agents or trustees have active duties to set aside and apply assets for tax obligations and may be pursued for unpaid amounts where they fail to do so (s 44).
Objections and appeals: A taxpayer may object to most assessments and decisions (s 82). Objections are lodged with the Minister (s 82), who determines them with reasons given (s 88-89). Appeal lies to the Supreme Court from a Minister’s determination (s 92), subject to time limits and, in most cases, a requirement that 50 per cent of the assessed tax be paid before appeal (s 93).
Non‑reviewable decisions and administrative discretion: Several powers and outcomes are declared non‑reviewable (s 5) or subject to Commissioner discretion where decisions are non‑reviewable (numerous provisions such as ss 9(5), 10(5), 21(2), 22(3), 34(2)). The structure embeds a high degree of administrative discretion coupled with limited direct judicial review on designated decisions.
Each of these concepts is anchored in specific provisions and shapes incentives for taxpayers, agents, and the Commissioner. For example, the reduction mechanics in s 31(2) create a concrete incentive to make "sufficient" pre‑audit disclosures; the duty to keep records in English and for five years (ss 52 and 53) creates concrete organisational compliance requirements; and the non‑reviewable decision architecture (s 5 and many specific clauses) narrows the procedural routes for judicial challenge.
Who it affects
The Act allocates legal burdens and enforcement levers among clearly identified actors.
Taxpayers: Defined broadly (s 3), taxpayers are the primary persons affected. They must lodge returns (s 11(2)), keep records necessary for accurate assessment (s 48), respond to information notices (s 70), and, if in default, pay tax, interest and potential penalty tax (Pt 5). Special rules treat corporations, trusts and representatives explicitly (definitions in s 3; public officer provisions s 105).
Tax agents and advisers: The Act recognises tax agents (s 11(4)) and creates duties and potential liabilities where agents prepare instruments, returns or assist taxpayers. There is a statutory defence for taxpayers who reasonably relied on a co‑payer or a tax agent (s 11(3)), but agents are themselves bound to ensure completeness (s 11(1)-(2)). Under approvals for special arrangements, agents may be bound by conditions and criminally liable if they contravene those conditions (s 39(2)).
Commissioners and authorised officers: The Commissioner of State Taxation and Deputy Commissioners (ss 60-64) are charged with administration (s 61) and exercise broad powers including delegation (s 66), investigator appointment (s 67), notice powers (s 70), entry and seizure (s 71) and secrecy obligations (s 77). Authorised officers must carry identity cards (s 68) and can exercise the powers in Division 2 (s 71).
Third parties and intermediaries: Entities holding money on account of a taxpayer, persons owing money to a taxpayer, trustees and agents with control of taxpayer assets are subject to collection demands and duties (s 43; s 44). A person served with a s 43 notice must comply and faces debt recovery if they do not (s 43(6), (9)).
Corporations and their officers: Corporations are directly liable for offences under the Act, with managerial officers potentially liable under s 110 if they knew or ought to have known of significant risk and failed to exercise due diligence. Corporations face multiplied penalties (s 111). The Commissioner may require a corporation to appoint a public officer who is answerable for the corporation's taxation obligations (s 105).
Public sector agencies and the Commonwealth: The Act authorises collection and disclosure of reportable information to the Commonwealth under a defined scheme (ss 81A-81F). The Commissioner may direct public sector agencies to collect and disclose specified reportable information (s 81D).
Others: Persons who provide reportable information under direction are brought within Part 8 enforcement provisions (s 81F), and persons impersonating authorised officers or hindering authorised officers face offences (ss 75-76).
Who pays: the financial burden of tax, interest and penalty tax falls on taxpayers, but the Act creates specific routes by which third parties, agents or trustees may be required to pay or have assets applied (ss 43-44). Who decides: the Commissioner exercises primary administrative decision‑making (s 61), the Minister determines objections (s 88-89), and courts (Supreme Court) determine appeals (s 92). What behaviour changes: taxpayers are required to maintain fuller records, consider earlier voluntary disclosures to reduce penalties, and respond timely to notices,failure to do so creates criminal and civil exposure under the Act.
Key duties and rights
The Act establishes a network of statutory duties and procedural rights for taxpayers, agents and administrators. Below are the principal obligations and the core rights that balance them.
Key duties
Provide accurate information in instruments and returns: Taxpayers and tax agents must include all information necessary for a proper assessment, with maximum monetary penalties for contravention (s 11(1)-(2), penalty $10,000).
Keep and produce records: Records necessary for accurate assessment must be kept and readily producible (ss 48, 51). Records must be in English or readily convertible to English (s 52); retention is not less than five years (s 53). The Commissioner can require additional records (s 49) and can recover conversion/translation costs from the person (s 52(2)).
Comply with notices and examinations: The Commissioner may require persons to provide information, attend, or produce records by written notice (s 70). Non‑compliance without reasonable excuse is an offence (s 70(4)).
Duties of agents, trustees and persons in control: Persons possessing or managing taxpayer assets must set aside and, if necessary, liquidate assets to meet tax obligations and ensure obligations are discharged while they have control (s 44(1)(c)-(e)). Failure to do so exposes them to debt recovery by the Commissioner (s 44(1)(f)) and may attract an offence (s 44(2)).
Respond properly during audits: Conduct during a tax audit impacts penalty calculations; obstructive conduct may increase penalty tax (s 31(2)(c), s 31(3)(e)).
Public officer appointment and notification of liquidator: Corporations may be required to appoint a public officer (s 105) and liquidators must notify the Commissioner within 14 days (s 106).
Key rights and protections
Right to request assessment: A taxpayer may request an assessment (s 9(1)), subject to constraints (s 9(2)-(4)).
Procedural protections on reassessment: Reassessments are constrained by a five‑year rule after initial assessment unless the taxpayer agrees or there is a deliberate default (s 10(4)). Reassessments should follow the Commissioner’s legal interpretations and practices at the time of the initial assessment except where law has changed (s 10(2)).
Objection and appeal rights: Taxpayers may lodge objections with the Minister (s 82), require reasons be given for determinations (s 89), and where dissatisfied, appeal to the Supreme Court (s 92). Time frames and procedural requirements are specified (ss 86-96).
Protection against self‑incrimination for criminal proceedings: A person cannot refuse to answer a question or produce documents on the ground of incrimination (s 74(1)), but any compelled answer or produced document is not admissible in criminal proceedings except in prosecutions for false statements or perjury (s 74(2)).
Disclosure safeguards and permitted uses: Tax officers are generally prohibited from disclosing information (s 77), but permitted disclosures are listed (s 78), including in connection with administration and enforcement and to named prescribed bodies. The Commissioner may also disclose non‑identifying aggregate information (s 79).
Remission powers: The Commissioner has discretion to remit interest or penalty tax wholly or partly (ss 29(1), 34(1)), though those remission decisions are non‑reviewable (ss 29(2), 34(2)).
Mechanics and limits
Non‑reviewable decisions narrow contestability: Numerous procedural powers and outcomes are declared non‑reviewable (s 5 and many specific provisions); where a decision is declared non-reviewable, it is outside Part 10 objection and appeal channels and not open to court review (s 5).
Evidentiary presumptions: The Act establishes evidentiary weight to certificates and signed documents from the Commissioner or Minister in court (s 115(5)) which streamlines enforcement but creates reliance on administrative certificates in litigation.
These duties and rights are expressed in statutory language and include defined criminal penalties and civil recovery routes. Practically, compliance requires robust record systems, timely responses to notices, careful handling of voluntary disclosure during audits, and understanding the limited judicial review avenues available for certain administrative decisions.
Penalties and enforcement
The Act combines civil recovery mechanisms with criminal offences and monetary penalties to support enforcement.
Monetary penalties and tax recovery
Tax as debt: Unpaid assessed tax and interest accrued since the assessment may be recovered as a debt by the Commissioner (s 41). Debt recovery is the primary civil enforcement route.
Interest: Interest is payable daily on tax defaults from the last day for payment until payment at a rate equal to the market rate plus 8 per cent per annum (s 25(1), s 26(1)). Substantial interest can accumulate; minimum thresholds mean trivial sums are excluded (s 27).
Penalty tax: Penalty tax is payable in addition to interest for tax defaults (s 30). The basic penalties are 75 per cent of unpaid tax for deliberate tax defaults and 25 per cent in other cases (s 31(1)). Adjustments apply for voluntary sufficient disclosure and obstructive conduct (s 31(2)-(3)). Minimum penalty thresholds exclude small amounts under $20 (s 32).
Remission: The Commissioner may remit interest or penalty tax in whole or part (ss 29(1), 34(1)); these remission choices are expressly non‑reviewable (ss 29(2), 34(2)), giving administrative discretion over relief.
Criminal offences
False or misleading statements, records, or information attract maximum penalties of $10,000 for contraventions such as keeping false records (s 50), failing to lodge returns (s 57), falsifying identity (s 58), and giving false information to a tax officer (s 55).
Deliberate tax evasion is a designated criminal offence with maximum penalty of $10,000 or imprisonment for two years (s 59). Offences by management of corporations are also subject to criminal liability under s 110 if the relevant tests are met.
Impersonating an authorised officer is an offence with a maximum $10,000 penalty (s 76).
Liability allocation and indirect enforcement
Third‑party collection: The Commissioner may require persons who hold money for a taxpayer or owe money to a taxpayer to pay the unpaid tax (s 43). That notice is served in writing, and non‑compliance is an offence attracting a $10,000 maximum penalty (s 43(6)) and civil recovery as debt (s 43(9)).
Duties of agents/trustees: Persons in control of taxpayer business or property must set aside assets to discharge tax obligations and may be pursued for unpaid tax where they fail to do so (s 44(1)(c)-(f)), combining a statutory duty with civil recovery power.
Corporate penalties: Courts may impose up to five times the maximum penalty for corporate offences (s 111), increasing the financial consequence for corporate entities, while managerial persons may be personally liable if due diligence defences fail (s 110).
Investigative enforcement tools
Information notices and compulsion: The Commissioner can compel information, attendance and document production (s 70). Non‑compliance without reasonable excuse is an offence (s 70(4), penalty $10,000).
Entry, inspection and seizure: Authorised officers may enter premises, require production of records, and seize instruments and records related to administration or enforcement (s 71). Entry is at reasonable times and officers must produce identity cards on request (s 71(2)-(3)).
Search warrants: Where there are reasonable grounds to suspect relevant instruments or records are on premises, the Commissioner may seek a magistrate’s warrant authorising forcible entry and seizure (s 72).
Secrecy and controlled disclosures
Restricted disclosure: Tax officers are prohibited from disclosing information except as permitted (s 77). Failure to comply is a $10,000 maximum penalty. Permitted disclosures include consented disclosures and disclosures in connection with administration or enforcement (s 78). The Act also provides for disclosure to Commonwealth authorities in relation to reportable information (ss 81A-81F).
Procedural limitations and enforcement discretion
Non‑reviewable decisions: Many enforcement and administrative choices are declared non‑reviewable (s 5). A non‑reviewable decision cannot be the subject of objection or appeal under Part 10 and is not open to judicial or administrative review (s 5). Examples include refusal to determine refund applications pending compliance with requirements (s 21(2)), offsetting refunds against other liabilities (s 22(3)), and cancellation or variation of approvals (s 38(2)).
Evidentiary presumptions: Certificates from the Commissioner are admissible in proceedings and are, absent contrary evidence, proof of matters stated (s 115(5)), simplifying the Commissioner’s enforcement burden in court.
Taken together, the Act provides a toolkit of civil recovery, penal measures, and investigatory powers; it also vests significant discretion in the Commissioner with limited internal or judicial oversight for particular decisions. Enforcement is executed through notices, seizures, debt recovery, penalties and, where relevant, criminal prosecution.
How it interacts with other laws
The Act is expressly framed as the general administration and enforcement overlay for specified taxation laws and as a vehicle for inter‑jurisdictional cooperation.
Relationship with specified taxation laws
Designated scope: Section 4 lists the taxation laws to which the Act applies, including the Land Tax Act 1936, the Payroll Tax Act 2009, the Stamp Duties Act 1923, Part 3B of the Authorised Betting Operations Act 2000, and the Act itself. The Governor may declare other corresponding laws (s 3(2)).
Complementary operation: Part 2 states the Act’s purpose is to provide general provisions for administration and enforcement of the other taxation laws, and those laws continue to contain tax‑specific rules about imposition, exemptions and entitlement to refunds (s 7).
Interaction with Commonwealth and other jurisdictions
Corresponding laws and corresponding Commissioners: The Act contemplates corresponding laws in recognised jurisdictions and corresponding Commissioners; the Commissioner may delegate powers to a corresponding Commissioner or perform functions under Part IIIA of the Commonwealth Taxation Administration Act 1953 (s 63, s 66(4)). Division 2A permits agreements to enable corresponding Commissioners to exercise investigative powers for the purposes of corresponding laws (ss 76A-76B).
Reportable information and Commonwealth disclosure: Division 4 (ss 81A-81F) specifically authorises the collection and disclosure of reportable information to the Commissioner of Taxation of the Commonwealth under Subdivision 396‑B of the Commonwealth Taxation Administration Act 1953. The Commissioner may direct public sector agencies to collect and disclose such information (s 81D).
Secrecy, admissibility and evidence
Secrecy constrained by permitted uses: Section 78 authorises disclosures in particular circumstances, including in connection with administration or enforcement across jurisdictions and for legal proceedings. Section 115 makes certificates and documents signed by the Commissioner or Minister admissible and presumptively authentic in legal proceedings.
Exclusion of other proceedings: Part 10 contains an exclusivity provision limiting challenges to tax assessments and related decisions to the objection and appeal process in the Act (s 100). Once an amount is paid to the Commissioner, recovery or challenge is confined to the Act’s procedures.
Overlap with other Acts, regulations and transitional arrangements
Regulations and limits: The Governor may make regulations under s 116, and the regulations can set fines for contraventions of subordinate rules. The Schedule provides transitional provisions to maintain continuity from repealed statutes and to phase in the Act’s application to existing liabilities (Schedule).
Interaction with other State laws: The Commissioner’s power to require collection of reportable information (s 81E(1)) allows requiring information in connection with laws administered by Ministers. Section 81B clarifies nothing in the Act prevents collection/disclosure under this Division even if the information is collected only for disclosure to the Commonwealth.
Specific cross‑Act insertions: The legislative history shows periodic amendments aligning the Act with changes in payroll tax, director liability and other measures, and insertion of new parts such as Part 6A on tax avoidance (2011), and Division 4 on reportable information (2018). The Help to Buy (Commonwealth Powers) Act 2025 added s 78A authorising disclosure of information to Commonwealth housing authorities in a specified context.
Limits and potential friction
Non‑reviewable decisions reduce external oversight: Where decisions are declared non‑reviewable under the Act (s 5), there is reduced availability of court review or administrative review, which may limit cross‑Act judicial remedies that would otherwise apply.
Conferral of powers to and from corresponding jurisdictions: Delegations to corresponding Commissioners (s 66(4), ss 76A-76B) imply the Act can be operationalised in multi‑jurisdictional contexts, but the precise legal relationships will depend on agreements and the text of corresponding laws.
Priority of relevant taxation laws over general provisions where expressed: The Act’s Part 2 notes that specific taxation laws include features such as imposition, exemptions and refunds. The Act supplements rather than supplants those core provisions, though its procedures and enforcement mechanics apply as the general administrative framework.
All interactions described here arise from provisions contained in the Act and the Schedule. The Act is thereby a statutory hub linking South Australian taxation administration internally and with Commonwealth and other State/territory regimes.
Amendment history
The Act’s legislative history recorded in the provided text shows staged additions and targeted amendments since the principal Act was enacted in 1996. The Schedule and "Legislative history" entries in the text provide dates, amending Acts, and commencement information.
Key steps in the amendment timeline (as listed):
1996 (No 80) Principal Act assented 5 December 1996 and largely commenced 1 January 1997 with some provisions commencing 1 July 1997 (s 4(d)-(f)).
1997 (No 34) Statutes Amendment (Pay‑roll Tax and Taxation Administration) Act 1997, amending Pt 3 and introducing processes (commenced 1 July 1997). This Act inserted or altered provisions in Pt 6, ss 35-38 and introduced s 38A (gazettal or service of notices).
1999 (No 33) Financial Sector Reform Act amendments (transitional items related to transfer of functions) with certain provisions commencing 1 July 1999.
2002 (No 35) Statutes Amendment (Stamp Duties and Other Measures) Act 2002, with transitional provisions and amendments commencing 28 November 2002.
2008 (No 38) Major revision: Statutes Amendment and Repeal (Taxation Administration) Act 2008. This Act redesignated sections (e.g. s 3 redesignated) and inserted concepts such as "corresponding Commissioner" and "corresponding law" (1 January 2009). It also added Division 2A in Pt 9 (investigations under other laws) and restructured several delegation provisions.
2010 (No 4) Payroll Tax (Nexus) Amendment Act 2010 amended s 4 and associated items from 1 July 2009 (transitional effect noted).
2011 (No 26 and No 36) Two significant Acts:
Statutes Amendment (Land Holding Entities and Tax Avoidance Schemes) Act 2011 inserted Part 6A (tax avoidance schemes) from 1 July 2011 (s 9). This introduced ss 40A-40I addressing artificial, blatant or contrived tax avoidance schemes.
Statutes Amendment (Directors' Liability) Act 2011 and later amendments (2013) altered corporate officer liability provisions (s 110).
2013 (No 16) Statutes Amendment (Directors' Liability) Act 2013 made further refinements to s 110 (management liability) with effect in mid‑2013.
2015 and 2016 Budget Acts (Nos 41 and 57) made various amendments, including changes to s 93(1) (appeal prohibited unless tax paid) and s 109 (general criminal defence designation).
2018 (No 35) Statutes Amendment and Repeal (Budget Measures) Act 2018 inserted Pt 9 Div 4 (collection of information for disclosure to Commonwealth, ss 81A-81F) commencing 1 July 2019. This introduced the formal reportable information regime.
2019 (No 25) Statutes Amendment and Repeal (Simplify) Act 2019 made amendments to various provisions (listed as commenced 3 October 2019).
2025 (No 66) Help to Buy (Commonwealth Powers) Act 2025 inserted s 78A authorising disclosure of information to Commonwealth and Housing Australia to assist in determining Help to Buy arrangement eligibility (Sch 1 cl 5) with commencement stated as 4 December 2025.
The "Provisions amended" table in the provided text lists each provision varied and the specific amending instrument and commencement dates. The Schedule contains transitional provisions tied to the original consolidation and later insertions (for example, clarifying how Part 6A applies to schemes entered into or carried out on or after certain relevant times, Schedule cl 10 to the 2011 Act).
Mechanically, the Act has evolved by:
Adding inter‑jurisdictional investigatory cooperation and delegation tools (2008).
Introducing a targeted anti‑avoidance statutory Part (6A) with an express object and mechanics for assessing avoidance tax (2011).
Creating a formal channel for supplying reportable information to Commonwealth taxation authorities (2018).
Adjusting corporate officer liability and other penalties by legislative amendments in 2011-2013 and later.
The legislative history as printed is the authoritative record contained in the source. Any specific operation of amendments depends on their commencement dates and the transitional clauses in the Schedule.
Litigation history
The text provided does not include any case law, reported judicial decisions or references to litigation outcomes arising from the Act. The Act itself creates the objections and appeals mechanism (Part 10) with appeals directed to the Supreme Court (s 92), and it specifies evidentiary presumptions for certificates and documents (s 115), but the printed legislative text does not record decisions, judicial interpretation, or litigation history.
For research or practice, this means that, per the source supplied, there is no litigation history embedded in the statute print. Practitioners seeking precedent or judicial treatment of the Act’s provisions will need to consult court databases and legal reporting services outside the legislative text to identify how courts have interpreted matters such as the non‑reviewable decision concept (s 5), the tax avoidance Part 6A (ss 40A-40I), penalty tax reductions on disclosure (s 31), and duties of persons in control of taxpayer assets (s 44).
In short, the Act provides procedural routes for objections and appeals and specifies evidentiary rules relevant to litigation, but the provided statute extract contains no judicial decisions to report.
Gotchas
Several technical features of the Act carry concrete operational risks for taxpayers, agents and administrators. These are not evaluative judgments but statutory mechanics to watch.
Non‑reviewability narrows contestability (s 5 and many specific clauses)
Numerous decisions are expressly declared non‑reviewable (s 5). Examples include refusal to make assessments pending compliance (s 9(5)), refusal to determine refund applications pending information (s 21(2)), decisions to offset refunds (s 22(3)), and many approval and variation decisions under Pt 6 (s 36(3), s 37(3), s 38(2)). A declared non‑reviewable decision cannot be objected to or appealed under Part 10 and is outside judicial or administrative review according to s 5. Practical consequence: some administrative decisions will be effectively final within the Act.
Assessments valid despite failure to serve (s 14(3))
An assessment need only be in writing and in a Commissioner‑approved form and must be served (s 14(1)-(2)), but failure to serve does not invalidate the assessment nor prevent recovery (s 14(3)). Practically this means substantive compliance with service technicalities may not block enforcement.
Time limits and estimation powers (ss 9, 10, 12)
Requesting an assessment is constrained by prior assessments and a six‑month rule following payment (s 9(2)). Reassessments are generally limited to five years after the initial assessment unless agreed or where there is a deliberate default (s 10(4)). The Commissioner may estimate where information is insufficient (s 12(2)), which can lock in provisional liabilities subject to objection.
High penalty tax with offsetting incentives (s 31)
Penalty tax rates are large (75 per cent deliberate; 25 per cent otherwise). However, voluntary sufficient disclosure can dramatically reduce the penalty (reduction by 80 per cent if disclosed before audit; 20 per cent during audit) (s 31(2)). The interplay of large statutory penalties with significant discounts for timely disclosure creates an operational decision point for taxpayers about whether and when to disclose.
Third‑party and trustee duties can shift fiscal burden (ss 43-44)
The Commissioner can require persons who owe or hold money for a taxpayer to pay the unpaid tax (s 43). Persons in possession or control of taxpayer assets as agents/trustees must set aside assets to meet tax obligations (s 44); failure to do so exposes them to recovery and criminal penalties. This can catch intermediaries or controllers who may not view themselves as principal taxpayers.
Self‑incrimination protection limited (s 74)
A person may not refuse to answer or produce documents on the ground of incrimination (s 74(1)), but compelled material is inadmissible in criminal proceedings except for prosecutions for false statements or perjury (s 74(2)). Practically, compelled answers can be used administratively and in civil tax recovery, but criminal prosecution for evasion still faces evidentiary constraints.
Reportable information and Commonwealth disclosure (ss 81A-81F)
Division 4 enables collection and disclosure of reportable information to the Commonwealth and empowers the Commissioner to direct public sector agencies to collect and disclose. Persons providing reportable information are brought within certain enforcement provisions (s 81F). Entities must treat these requests as statutory obligations even if the collection is for Commonwealth reporting (s 81B).
Remission powers are non‑reviewable (ss 29-34)
The Commissioner has unilateral discretion to remit interest or penalty tax and those remission decisions are non‑reviewable (ss 29(2), 34(2)). Practically, taxpayers depend on administrative discretion for relief rather than contestable legal entitlements in some cases.
Appeals often require payment first (s 93)
A taxpayer cannot normally appeal unless 50 per cent of the assessed tax (excluding interest and penalty tax) is paid (s 93(1)). The Minister has discretion to permit an appeal without payment but refusal is non‑reviewable (s 93(2)-(3)). This can constrain the effective right of appeal for cash‑constrained taxpayers.
Evidentiary presumptions (s 115)
Certificates from the Commissioner are admissible and, absent contrary evidence, proof of matters stated (s 115(5)). This shifts evidentiary burdens and means administrative certificates will carry weight in litigation unless rebutted.
Being alert to these mechanics,non‑reviewability, estimation powers, timing rules, third‑party exposure, and remission discretion,will materially affect client advice, audit responses, and litigation strategies.
How to comply
Compliance using the Act’s mechanics requires discrete operational steps, process controls and prompt procedural actions tied to statutory triggers. The following is a checklist and practical measures aligned to the statute.
Records and returns
Maintain comprehensive records in English or in a form that can readily be converted/translated into English (s 52). Retain records for at least five years from the date made or obtained or completion of the transaction (s 53). Make records readily producible (s 51).
Ensure returns and instruments include all information necessary for a proper assessment (s 11(1)-(2)). Engage tax agents with clear written instructions and client‑supplied documentation to preserve the s 11(3) defence where reliance on others is asserted.
If the Commissioner issues a written notice requiring additional records (s 49), comply promptly. Non‑compliance is an offence (s 49(2)).
Responding to investigations and audits
On receipt of a written requirement under s 70 to provide information, attend or produce records, assess the deadline in the notice and comply within the period or seek an extension with reasons. Non‑compliance without reasonable excuse is an offence (s 70(4)).
If an authorised officer seeks to exercise entry powers (s 71), request to see the officer’s identity card (s 71(3)) and, if presented, cooperate subject to preserving privilege issues. If a search warrant is presented, check the warrant terms (s 72).
Where there is potential exposure, consider making a "sufficient disclosure" in writing before an audit commences to secure potential reductions in penalty tax under s 31(2)(a). If already subject to audit, making a sufficient disclosure still reduces penalty (s 31(2)(b)).
Assessments, objections and appeals
If requesting an assessment under s 9, use the Commissioner‑approved form (s 9(3)) and remember the limitations on making requests where an assessment already exists or where six months have passed after payment (s 9(2)).
Track the five‑year reassessment limitation (s 10(4)). If relevant facts emerged beyond five years, secure taxpayer agreement to extend the period where appropriate to avoid surprise reassessment.
Lodge objections in writing with fully detailed grounds (ss 82-83) within 60 days of service of assessment or notification of decision (s 86). If out of time, seek Ministerial permission with full reasons (s 87). Keep in mind the Minister is required to give reasons for determinations (s 89).
For appeals to the Supreme Court, plan for the likely requirement to pay 50 per cent of assessed tax before lodging an appeal (s 93(1)) or seek Ministerial discretion at the earliest opportunity (s 93(2)).
Payment and collection planning
Where cashflow issues exist, apply for time to pay or instalment arrangements under s 45, and accept any conditions (for example, payment of interest). The Commissioner has discretion to vary conditions (s 45(3)).
Monitor third‑party exposures. If the Commissioner serves a s 43 notice on someone holding money for your client, advise the recipient to comply and notify the taxpayer immediately. Failure to comply can result in debt recovery and penalties (s 43(9)).
Special arrangements and approvals
If a taxpayer seeks a special tax return or payment arrangement under Pt 6 (s 35), make a formal application in the Commissioner’s approved form (s 36(1)), and ensure any conditions are strictly complied with because breach of conditions can attract criminal penalties (s 39).
Avoidance risk management
Evaluate arrangements against Part 6A (s 40A-40I). A scheme with the sole or dominant purpose of avoiding tax falls within the Part (s 40C). Document commercial and economic substance as part of decision records because s 40D lists matters the Commissioner will consider.
Where a notice of assessment is issued under Part 6A, the Commissioner must provide reasons (s 40F). Seek those reasons promptly, and consider whether an objection or appeal is feasible given s 40E treating the liability as arising on the date tax would have been payable.
Corporate governance and officer duties
Ensure corporations appoint and notify a public officer where required (s 105), and maintain ongoing compliance because the public officer is answerable for corporate taxation obligations (s 105(5)).
Directors and managers should exercise due diligence to prevent breaches that could attract personal liability under s 110. Put in place reporting, record systems and compliance oversight to show the exercise of due diligence if challenged.
Administrative best practice
Keep a register of notices, assessments, objections, refunds and decisions to identify time bars (s 86, s 94) and to ensure adequate documentary evidence for objections and appeals.
Where translations are necessary, be aware the Commissioner may recover conversion costs (s 52(2)). Budget for translation costs for non‑English records.
Where the Commissioner exercises discretion to remit interest or penalty, prepare a compelling, documented submission showing reasons for remission (ss 29, 34), recognising those decisions are non‑reviewable.
When receiving a notice requiring reportable information under s 81E, treat it as a statutory requirement and consult with counsel if the scope of the request raises privilege or other legal issues. Note Part 8 enforcement provisions extend to reportable information providers (s 81F).
Practical checklist
Implement a records retention policy meeting s 53 (≥5 years) and English‑language requirement (s 52).
Train staff to preserve documents on learning of a potential audit or s 70 notice to avoid s 31(3)(e) obstructive conduct.
If potential default is discovered, consider immediate sufficient disclosure in writing before audit to access the largest penalty reduction (s 31(2)(a)).
When served with s 43 or s 70 notices, act quickly; non‑compliance is an offence and invites recovery.
For cross‑jurisdictional matters or reportable information directives, coordinate with public sector agencies and take particular care with data privacy and permitted disclosure rules (ss 78, 81A-81F).
Document everything that evidences commercial substance for arrangements that might be characterised as tax avoidance under Part 6A.
Compliance under this Act is primarily documentary, timely and procedural: accurate returns and records; prompt and reasoned engagement with Commissioners’ notices; and considered use of the statutory objection and appeal pathways where contesting administrative determinations.