APES 220 Taxation Services: the standard for tax practitioners

APES 220 *Taxation Services* is the professional and ethical standard that governs how Australian accountants provide taxation services. It is issued by the Accounting Professional & Ethical Standards Board (APESB) and is mandatory for members of the three professional accounting bodies — CPA Australia, Chartered Accountants ANZ and the Institute of Public Accountants. In short, if you are a member of one of those bodies and you prepare returns, give tax advice, or otherwise act on tax matters for a client, APES 220 sets the minimum ethical conduct you must meet.

The standard exists because tax work carries a distinctive tension: a practitioner owes duties to the client, but also owes obligations to the broader public interest and the integrity of the tax system. APES 220 codifies how to manage that tension.

What APES 220 is and who must comply

APES 220 is one of a suite of profession-wide standards built on top of APES 110 Code of Ethics. It applies to "Members in Public Practice" and, in relevant respects, to members in business who provide taxation services.

It binds members regardless of the size of the engagement — from a single individual return to complex corporate structuring. Membership of a professional body is the trigger: the standard is enforced through each body's by-laws and disciplinary processes, not by a government regulator directly. That makes APES 220 a self-regulatory layer that sits alongside, rather than replaces, the statutory regime.

A practical point worth noting: APESB has been revising APES 220. An exposure draft was released in 2024 to align the standard with changes to APES 110 (including international tax-planning provisions) and to pick up quality-management conforming amendments. Practitioners should confirm which version is currently operative and check the APESB standard page for the effective date applying to their engagements.

Where APES 220 sits among other obligations

It helps to see APES 220 as one of several overlapping rulebooks for tax practitioners:

• APES 110 Code of Ethics — the foundational ethics framework (integrity, objectivity, professional competence, confidentiality, professional behaviour). APES 220 applies these principles specifically to tax work.
• The legislated Tax Agent Services Code — the Code of Professional Conduct in the *Tax Agent Services Act 2009*, administered by the Tax Practitioners Board (TPB). This applies to registered tax and BAS agents.
• Taxation law itself — the *Income Tax Assessment Acts*, the *Taxation Administration Act 1953* and related law, including the administrative penalty regime.

The duties overlap heavily but are not identical. A registered agent can breach the TPB Code, APES 220 and tax law with a single act, or breach one without the others. For a broader view of the regulatory landscape, see the tax practitioners topic hub.

Core obligations under the standard

APES 220 sets out professional obligations across several recurring themes. The substance, drawn from the APESB standard, covers:

• Professional competence and due care — providing tax services with the necessary skill and diligence.
• False or misleading information — not being knowingly or recklessly associated with statements that misrepresent a client's position.
• Tax schemes and arrangements — restrictions on promoting arrangements where a tax benefit is not reasonably arguable.
• Use of estimates — where estimates are used, they must be reasonable and disclosed appropriately.
• Client monies — proper handling of money the member holds but is not presently entitled to.
• Professional fees — fees must be set on an appropriate basis (for example, restrictions on certain contingent fee arrangements).
• Documentation — keeping records sufficient to support the advice given and work performed.

False or misleading statements and materiality

A central obligation is that a member must not knowingly or recklessly be associated with information — returns, schedules, accounting entries or other documents — that is false or misleading, or that omits or obscures information where omission would mislead.

The standard frames this around the practitioner's state of mind: the prohibition bites where conduct is *knowing* or *reckless*, not merely careless. APES 220 also uses a concept of materiality: certain obligations do not apply where the information in question is immaterial or inconsequential. Materiality is a judgement call, and practitioners should not treat it as a loophole — the safer course is to correct or decline to be associated with anything that could mislead.

This duty closely mirrors the TPB's guidance on false or misleading statements under the legislated regime, so a single misstatement can engage both standards. For the statutory dimension, see the Tax Practitioners Board.

Tax schemes and the reasonably arguable position

APES 220 restricts members from promoting, or being associated with the promotion of, tax schemes and arrangements where it is not reasonably arguable that the claimed tax benefit is available under taxation law.

"Reasonably arguable" is a recognised threshold in Australian tax administration — broadly, a position is reasonably arguable if it is about as likely to be correct as incorrect, when measured against the authorities. It is also relevant to the administrative penalty regime under the *Taxation Administration Act 1953*; a reasonably arguable position can reduce exposure to penalties for a shortfall amount. Practitioners should verify the precise penalty consequences for a given scenario with the Australian Taxation Office, because they depend on the facts and the current law.

The practical effect of this provision is to stop accountants lending professional credibility to aggressive or contrived arrangements. If a position cannot be defended on a reasonably arguable basis, the standard expects the member not to promote it.

Client monies, fees and documentation

Three more operational obligations round out the standard:

• Client monies — where a member holds money to which they have no present entitlement (for example, refunds passing through a trust account), it must be handled with appropriate controls and accounted for to the client. This intersects with APESB's separate client-monies requirements.
• Professional fees — fees should be set transparently and on a proper basis. The standard contains constraints on contingent or success-based fees in circumstances where they would compromise objectivity.
• Documentation — members should retain working papers and records that demonstrate the basis for the tax positions taken and the advice given. Good documentation is both an ethical requirement and the practitioner's first line of defence in any later dispute.

Common pitfalls and how to comply

The recurring failures under APES 220 are rarely exotic. They tend to be:

• Signing or lodging documents the practitioner suspects are inaccurate, on the basis that it is "the client's return".
• Treating materiality as permission to ignore a misstatement that is, in fact, consequential.
• Promoting structures where the tax outcome is hopeful rather than reasonably arguable.
• Thin or missing working papers, leaving no record of the reasoning behind a position.
• Confusing APES 220 with the TPB Code and assuming compliance with one guarantees the other.

To stay compliant:

1. Document your reasoning for any position that is not clearly settled, recording the authorities relied on.
2. Apply the reasonably arguable test honestly before lending your name to any arrangement.
3. Correct or withdraw from anything false or misleading rather than rationalising it as immaterial.
4. Check the operative version of APES 220 and any conforming changes flowing from APES 110.
5. Map your obligations across APES 220, the Tax Agent Services Code and tax law, since one act can engage all three.

APES 220 ultimately asks tax practitioners to be technically careful and ethically firm at the same time — to serve the client without becoming an instrument of misstatement or aggressive tax avoidance.