Practice Statement Law Administration

PS LA 2011/5

SUBJECT: Recovery of administrative overpayments
PURPOSE: To outline the circumstances and risk factors that will determine how and when action will be taken to recover administrative overpayments

  • This document has changed over time. View its history.

FOI status: may be released
Mistakes by the Commissioner
Mistakes by taxpayers and/or their representatives
Accrual of general interest charge
Legislative Amendments
Risk-based approach
Release from payment

This practice statement is issued under the authority of the Commissioner of Taxation and must be read in conjunction with Law Administration Practice Statement PS LA 1998/1. It must be followed by tax officers unless doing so creates unintended consequences or where it is considered incorrect. Where this occurs tax officers must follow their business line's escalation process.


1. The taxation system operates predominantly under a self-assessment regime, which relies on taxpayers to honestly self-assess their tax liabilities, as well as their entitlements to refunds of overpaid tax. Underpinning this regime is the Compliance Program, which aims to ensure that taxpayers do not understate their liabilities or overstate their entitlements to refunds.

2. The Australian Taxation Office (ATO) computer system processes a voluminous number of transactions that can inevitably lead to system errors which result in money being mistakenly paid as refunds to which the recipient is not entitled. Additionally, the Compliance Program will detect cases where money has been mistakenly paid as refunds to which the recipient is not entitled.

3. These mistakenly paid amounts are referred to in this practice statement as administrative overpayments.


4. The following terms are used in this practice statement:

Administrative overpayment - has the same meaning as the definition in subsection 8AAZN(3) of the Taxation Administration Act 1953 (TAA).

Cause of action - means the legal ingredients necessary for the plaintiff to succeed in his action against the defendant.

Declaratory order - means an order made by the court which declares what the rights are between the parties at the relevant date.

Defendant - means the person against whom legal proceedings are brought. In this practice statement it refers to the recipient of the overpayment and in some instances a third party who is holding or is in possession of the amount overpaid.

Plaintiff - means the person who brings an action to court. In the case of an action under section 8AAZN of the TAA, it can be the Commissioner, the Commissioner's delegate or a Deputy Commissioner. In terms of a common law action, it is the Commonwealth.

Recipient - refers to the person who has received the overpayment.

RBA - means running balance account as defined in section 8AAZA of the TAA.

RBA deficit debt - means a balance on an RBA in favour of the Commissioner, where the total amount of due and payable primary tax debts allocated to the RBA are greater than the payments and credits allocated to that RBA.

Traced - derives from the word 'tracing'. The term 'tracing a claim' and 'tracing remedy' is used to describe an equitable right a person has to recover his or her property from those into whose hands it has gone. Strictly speaking, tracing is neither a claim nor a remedy but a process. Money can be followed at common law into and out of a bank account and also into the hands of a subsequent transferee provided it does not cease to be identifiable by being mixed with other money in that account derived from some other source.


5. Law Administration Practice Statement PS LA 2011/6 Risk and risk management in the ATO applies the principles, outlined in Corporate Management Practice Statement PS CM 2003/02 (G) Risk and issues management, to the collection of unpaid liabilities, having regard to the compliance model.

6. The compliance model reflects the different taxpayer attitudes to compliance and the corresponding compliance strategy that best responds to each particular attitude.

7. Tax officers must follow the principles and guidelines outlined in this practice statement. Given the myriad of scenarios that can give rise to administrative overpayments, this practice statement mandates an assessment of the level of risk in each case to determine the requisite approach to be adopted in initiating collection activities. It is noted however that it is not possible to set out all the circumstances which may give rise to an administrative overpayment and to assess the risks involved in advance. Each case has to be considered on its merits and on the basis of all the relevant facts. Tax officers must however take care not to consider irrelevant factors and must exercise their own judgment in arriving at an appropriate decision based on the risks involved in each case. The decision should be made in good faith and without bias.

8. Section 8AAZN was inserted in the TAA to enable the Commissioner to recover amounts paid to a person by mistake. The meaning of 'mistake' was considered in David Securities Pty Ltd v. Commonwealth Bank of Australia (1992) 175 CLR 353 and it was held to include both mistakes of fact and law. The mistakes contemplated by section 8AAZN include both the mistakes by the Commissioner, as well as those induced by the recipient of those overpayments.

9. Subsection 8AAZN(1) of the TAA treats certain overpayments by the Commissioner as a debt due to the Commonwealth 'by the person to whom the overpayment was made (the recipient)' and requires payment to the Commissioner. It provides the Commissioner with a statutory cause of action which allows him to sue and recover administrative overpayments as tax-related liabilities. That cause of action authorises recovery only from the person or persons to whom the Commissioner makes payment. Section 8AAZN of the TAA does not permit the tracing of money beyond the initial recipient.

10. Section 8AAZN of the TAA applies to administrative overpayments made on or after 1 July 1999.

11. An administrative overpayment is defined in subsection 8AAZN(3) of the TAA as:

an amount that the Commissioner has paid to a person
by mistake
being an amount to which the person is not entitled.

12. Prior to the enactment of section 8AAZN of the TAA, the Commissioner's ability to recover administrative overpayments was limited to common law causes of action such as:

an action for 'money paid from consolidated revenue without statutory authority' (See Commonwealth v. Burns [1971] VR 825, applying Auckland Harbour v. R [1924] AC 318)
an action for money 'had and received'
an action for 'deceit'.

13. These causes of action remain valid and may continue to be used where section 8AAZN of the TAA has no application (for example, where it is desired to sue the person or persons to whom an amount of an overpayment has been transferred by the initial recipient of the overpayment or a subsequent transferee of the money). It should be noted that claims pursued under common law can only be made in the name of the Commonwealth, as plaintiff, and will not attract general interest charge (GIC).

14. Administrative overpayments can be categorised according to their cause into two broad groups:

mistakes by the Commissioner
mistakes by taxpayers and/or their representatives.

Mistakes by the Commissioner

15. Mistakes by the Commissioner are usually processing errors that can produce an erroneous refund to a person. Although not exhaustive, they include the following:

incorrect keying or scanning of amounts
crediting of an electronic refund to an incorrect bank account
incorrect calculation and refund of interest entitlements
system and accounting errors.

Mistakes by taxpayers and/or their representatives

16. This category includes those cases where money has been refunded to a person as a result of inaccurate information being provided to the ATO either orally or in writing, which may be subsequently discovered as a result of voluntary disclosures, audits or compliance verifications.

17. Administrative overpayments can commonly occur as a result of false and misleading statements or fraud. For instance, this could range from unintentionally understating activity statement liability amounts or overstating activity statement credits through false and misleading statements in an activity statement, to the more serious fraud, where an entity purports to conduct an enterprise for the sole purpose of obtaining substantial refunds.

18. A statement will be false and misleading where it is erroneous or incorrect; no element of deceitful or dishonest conduct on the part of the taxpayer or anyone else needs to be established. Fraud, on the other hand, occurs where a party intentionally induces a course of action by deceit or other dishonest conduct involving acts or omissions or the making of false statements, orally or in writing, with the object of obtaining money or other benefit from, or of evading a liability to the Commonwealth.

19. Administrative overpayments commonly occur as a result of a mistake induced by the taxpayer and/or their tax agent including in the following instances:

over-claimed goods and services tax (GST) refunds
overstated claims for early payment of fuel tax credits
identity theft or take-over, or
tax agents' fraud.

Accrual of GIC

20. As mentioned above in paragraph 13 of this practice statement, administrative overpayments which do not fall within the ambit of section 8AAZN of the TAA and can only be recovered under a common law remedy will not attract GIC.

21. GIC will, however, accrue on any administrative overpayments arising under section 8AAZN of the TAA:

from the specified due date, being at least 30 days after a notice is given to the recipient under subsection 8AAZN(2) of the TAA, or
from the date of the overpayment, upon allocation of the administrative overpayment debt to a running balance account (RBA), under subsection 8AAZF(1) of the TAA.

22. Subsections 8AAZN(1) and (2) of the TAA are severable to the extent that the giving of notice under subsection 8AAZN(2) is not a mandatory prerequisite to the cause of action under subsection 8AAZN(1). Therefore, the Commissioner is able to commence proceedings for recovery of administrative overpayments as soon as the mistake is detected, without giving a notice under subsection 8AAZN(2) of the TAA.

23. The giving of a notice under subsection 8AAZN(2) of the TAA, which essentially establishes a due date for payment being at least thirty days after the notice is given, is only required where the Commissioner, in his discretion, wishes to impose GIC. It is also open to the Commissioner to impose GIC in such cases where he allocates the administrative overpayment debt to an RBA.

24. In essence, the provisions allow the Commissioner a choice as to how he will recover an administrative overpayment. For example, he can allocate an administrative overpayment to an RBA as a primary tax debt. In such a case the Commissioner's claim is no longer for an administrative overpayment under subsection 8AAZN(1). Instead GIC becomes payable under section 8AAZF and forms part of the RBA deficit debit due and payable under section 8AAZH, and is enforced as such.

Legislative amendments

25. Previously, where amounts refunded under:

the A New Tax System (Goods and Services Tax) Act 1999 (GST Act)
the A New Tax System (Luxury Car Tax) Act 1999 (LCT Act), and
the Fuel Tax Act 2006 (Fuel Tax Act)

were overpaid, such amounts were treated as administrative overpayments under section 8AAZN of the TAA, with GIC calculated on the resultant running balance account (RBA) deficit debt when the administrative overpayment was allocated to the RBA.

26. Tax Laws Amendment (2009 GST Administration Measures) Act 2010 amended:

Section 35-5 of the GST Act
Section 17-5 of the LCT Act, and
Section 61-5 of the Fuel Tax Act.

27. In terms of these amendments, which take effect in relation to tax periods commencing, or claims made, on or after 24 March 2010, the overpaid amounts are now treated as amounts that became payable, and due for payment, at the time when the overpaid amount was paid or applied.

28. GIC will statutorily accrue on those amounts from their respective due dates which is the date the overpayment was paid or applied.

29. Overpayments in relation to tax periods commencing, or claims made under the GST, LCT and Fuel Tax Acts, before 24 March 2010 will continue to be treated as administrative overpayments to which section 8AAZN applies and therefore be subject to the policy prescribed at paragraphs 32 to 38 of this practice statement.

Risk-based approach

30. The Commissioner is duty-bound by law to ensure that money mistakenly paid out of consolidated revenue, without authority, is recovered in the most effective and timely manner. In doing so, the Commissioner will use the appropriate option for recovery.

31. In dealing with the recovery of an administrative overpayment, the treatment, timing and mode of recovery to be adopted in each case will depend on the amount involved and the circumstances or degree of mischief which gave rise to the overpayment.

32. As stated above, the compliance model (see PS LA 2011/6), prescribes that the measure and sanction that the Commissioner must implement on a case-by-case basis will be commensurate with the level of risk to the revenue associated with the particular case and the capacity and willingness of the overpayment recipient to repay the amount. As each case will turn on its own facts, the Commissioner will apply the level of sanction that the circumstances dictate (that is, the most severe sanction in the case where the highest level of risk is identified).

33. The level of risk associated with each case will determine:

whether the Commissioner should rely on section 8AAZN of the TAA or one or more of the common law causes of action for recovery of the debt, and
if section 8AAZN of the TAA is to be invoked, whether a notice under subsection 8AAZN(2) should be given.

34. As a general principle, the Commissioner would regard administrative overpayments induced by taxpayers or their representatives as falling within a higher risk category than those which occurred as a result of a mistake by the Commissioner.

35. Accordingly, where the administrative overpayment is attributable to the recipient's (or their agent's) action or statement, the effect of giving a notice under subsection 8AAZN(2) of the TAA would be to forego part of the GIC accruing during the period in which the entity had the benefit of the administrative overpayment funds. In particular, GIC would not be recoverable during the period between the date the administrative overpayment was made until 30 days after issue of the notice, which would usually occur well after the Commissioner finally determined that the recipient was not entitled to the payment.

36. It is not considered an equitable outcome that a person, who was responsible for the overpayment, should have the benefit of GIC-free funds during this period. For this reason, a notice under subsection 8AAZN(2) of the TAA should not be issued in these circumstances and the administrative overpayment will be taken to have been allocated to an RBA on the issue date of the overpayment/refund. Accordingly, GIC will accrue on the overpayment/refund from its issue date.

37. Conversely, where an overpayment is solely the result of the Commissioner's mistake, for example, a keying error, a notice under subsection 8AAZN(2) of the TAA should be given to the recipient of the administrative overpayment. In such circumstances, GIC will not accrue until at least 30 days after the notice has been given to the taxpayer. This approach is in line with the Commissioner's policy to treat taxpayers fairly where the overpayment arises from circumstances beyond their control. The exception to this rule will be where the administrative overpayment falls within a high risk category because of one or more of the following factors:

the amount refunded is in excess of $50,000
the recipient has a poor compliance record
evidence held (for example, where the recipient is a non-resident) suggests that there is a risk that the administrative overpayment may not be repaid.

38. In summary, the Commissioner will, wherever possible, adopt the following approach:

In instances where the amount of the overpayment has resulted from a processing error, the ATO may contact the recipient and attempt to negotiate the return of the amount overpaid. Where appropriate, favourable consideration will be given to a repayment arrangement by instalments without the issue of a notice under subsection 8AAZN(2) of the TAA. Where a notice under subsection 8AAZN(2) has been issued, remission in part or in full of the GIC incurred may be considered.
Where the ATO does issue a notice under subsection 8AAZN(2) of the TAA, it is appropriate to wait for the expiration of the 30 day period after the notice was issued before any recovery proceedings are commenced.
On the other hand, in the more serious cases where the revenue is at risk and the ATO seeks to secure the amount overpaid, the Commissioner may choose to immediately recover the debt as an administrative overpayment under paragraph 8AAZN(1)(a) of the TAA by allocating to an RBA. Where the Commissioner has allocated the administrative overpayment to an RBA, the 30 day notice under subsection 8AAZN(2) of the TAA should not be given as GIC applies automatically to the RBA deficit debt at the end of a day (usually from the original date of the refund of the administrative overpayment). However, advice to the person concerned that the administrative overpayment has been allocated to their RBA is considered appropriate, although not mandatory.

39. The ATO may utilise any of the available measures to secure and recover an administrative overpayment and depending on the individual circumstances of each case, may take one or more of the following actions:

Recover the administrative overpayment from a debtor by issuing a notice under section 260-5 of Schedule 1 to the TAA (a 'garnishee') to a third party who is taken to owe money to the debtor. (See Law Administration Practice Statement PS LA 2011/18 Enforcement measures used for the collection and recovery of tax related liabilities and other amounts.)
Issue a summons or writ under either or both the statutory causes of action provided under section 8AAZN of the TAA or common law, as appropriate.
Apply to the court for a freezing order to preserve the money where it can be traced to third parties and where appropriate, apply to the court for declaratory orders in aid of recovery. (See PS LA 2011/18.)
Refer the matter to the Australian Federal Police for investigation with a view to requesting the Commonwealth Department of Public Prosecutions (CDPP) to lay charges against the recipient for 'Defrauding or conspiracy to defraud the Commonwealth' and where appropriate, apply for restraining orders under the Proceeds of Crime Act 2002 to preserve the money or assets upon which the recipient of the overpayment has effective control, thereafter seeking the appropriate forfeiture order against those assets upon conviction. (See Corporate Management Practice Statement PS CM 2007/02 Fraud control and the prosecution process.)
Refer the matter to the CDPP to pursue prosecution action under the TAA for making false and misleading statements to the Commissioner and where appropriate apply to the court for restitution.

Release from payment

40. Division 340 of Schedule 1 to the TAA empowers the Commissioner to provide release from particular liabilities on the grounds of serious hardship. Section 340-10 of Schedule 1 to the TAA specifically outlines the particular liabilities to which the provisions apply.

41. As administrative overpayments that arise under section 8AAZN of the TAA are excluded from the scope of Division 340 of Schedule 1 to the TAA, recipients of administrative overpayments cannot avail themselves of this recourse.

42. Accordingly, where a debtor has applied and been granted full release from payment of all of their liabilities, except for the administrative overpayment, consideration should be given to whether it would be economical to pursue recovery of the unpaid administrative overpayment. (See Law Administration Practice Statement PS LA 2011/17 Debt relief).

Date of Issue: 14 April 2011

Date of Effect: 14 April 2011

Related Practice Statements:
PS CM 2003/02 (internal link only)
PS CM 2007/02 (internal link only)
PS LA 2011/6
PS LA 2011/17
PS LA 2011/18

Subject References:
False or Misleading Statements

Legislative References:
TAA 1953 8AAZA
TAA 1953 8AAZN
TAA 1953 8AAZN(1)
TAA 1953 8AAZN(2)
TAA 1953 8AAZN(3)
TAA 1953 Pt IVC
TAA 1953 Sch 1 260-5
TAA 1953 Sch1 Div 340
FTA 2006
LCTA 1999
Proceeds Of Crime Act 2002

Case References:

David Securities Pty Ltd v. Commonwealth Bank of Australia
(1992) 175 CLR 353
92 ATC 4658
(1992) 24 ATR 125

Commonwealth v. Burns
[1971] VR 825
[1972] ALR 154

Auckland Harbour v. R
[1924] AC 318

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PS LA 2011/5 history
  Date: Version:
You are here 14 April 2011 Original statement
  7 February 2013 Updated statement
  3 July 2014 Updated statement
  1 February 2018 Updated statement