Accountant Disengagement Letter Template (Australia)

Lodgment cycles are what make a per-service cut-off essential here

Australian compliance work runs on overlapping cycles rather than one annual event: business activity statements quarterly or monthly, single touch payroll reporting on every pay run, superannuation guarantee contributions quarterly, income tax returns on a lodgment program deadline that depends on the agent, and taxable payments annual reporting for some industries. At any given moment a practice is part-way through several of them.

So a letter that says the practice will cease acting from a single date leaves every one of those threads unresolved, and the most damaging gaps are the ones with the shortest cycles. Single touch payroll reporting is due on or before the pay day. Superannuation guarantee has a hard quarterly deadline and a charge that follows if it is missed — one a client cannot claim a deduction for.

This template asks you to switch on each service that was in scope and give it two facts: the last period completed and the date it was lodged or delivered. Each service prints its own cut-off followed by an explicit statement that no responsibility is accepted for later periods, and there is a separate list for what falls due next.

The agent linking and authorisation problem is bigger here than in most markets

In Australia the connection between a client and their tax agent is a live technical arrangement, not just a contract. An agent is linked to the client in the ATO's online services, may hold access through client-to-agent linking arrangements, may be listed as the contact for activity statement lodgment, and may hold authorisation across a number of separate roles and entities — a company, its directors personally, a trust, a self-managed super fund.

None of that ends because the engagement ended. A former agent can continue to appear as the client's authorised contact, receive correspondence, and hold the lodgment deferrals that come with a lodgment program. Equally, a new agent cannot simply take over: they need to be added, and where client-to-agent linking applies the client has to authorise them through the ATO's own channel rather than the agent doing it for them.

This template therefore has a section devoted to it, listing each entity involved rather than assuming one. It also prompts the practical items that get forgotten: access to accounting and payroll software the practice administered, the client's own credentials for government online services, and any authorisation held with a state revenue office or with the super fund's administrator.

Cut-off, lodgment deferrals and who now owns the deadline

There is one Australian-specific consequence of changing agents that deserves its own paragraph in the letter, because clients are frequently unaware of it: lodgment deadlines can differ depending on who is lodging. A tax agent lodging under a lodgment program has access to concessional dates that a taxpayer lodging for themselves does not, and those concessions depend on the agent relationship being in place and the client's lodgment history being up to date.

The practical effect is that a client who leaves an agent mid-year, and does not appoint a replacement promptly, can find that a return they believed was not due for months is now due much sooner. A disengagement letter that lists upcoming obligations with their dates — and says plainly that the dates may change once the agent relationship ends — is doing something genuinely useful rather than reciting boilerplate.

This template's upcoming-obligations section does that, and states honestly that the dates given are based on the position while the practice was acting and should be reconfirmed by whoever takes over.

Records, liens and the professional-obligation limit

A practice may be entitled to a lien over documents in its possession for unpaid fees, but the entitlement is narrower than commonly assumed and asserting it badly at the point of departure is a complaint risk. It does not extend to everything in the file, it does not attach to documents that belong to the client and were provided in the ordinary course, and exercising it in a way that prevents a client meeting a lodgment obligation puts the practice on the wrong side of its own professional obligations.

This letter therefore separates three things: the client's own documents, which are returned; the practice's working papers, which remain the practice's property; and any lien, which is dealt with in the fees section rather than tangled into the records section. If fees are owed, they are a debt to pursue.

It also sets a collection period as a field and states the client's own record-retention obligations next to it — generally five years for most business records under tax law, longer where a capital gains tax asset or a specific provision applies. A short destruction deadline that ignores those obligations is how records the client is required to keep get thrown away.

Handover between agents: cooperate, and get the consent in writing

Confidentiality obligations survive the engagement, and they are the reason a practice cannot simply hand a file to a new agent because that agent asked. The practical route is the same one used everywhere: get the client's written authority to communicate with the named incoming agent and to release information relevant to the transition.

The client response at the end of this letter is that authority. It is worth keeping, because a request from the new agent months later is much easier to answer against a signed consent than against a recollection of a phone call.

The incoming agent's own position is worth confirming too. Providing tax agent services for a fee requires registration with the Tax Practitioners Board under the Tax Agent Services Act 2009, and since the 2024 Code Determination took effect — 1 January 2025 for larger practitioners and 1 July 2025 for those with 100 or fewer employees — registered agents carry additional obligations including proactively keeping clients informed of significant matters. A client moving to an unregistered bookkeeper for work that is a tax agent service is a problem the letter can flag without lecturing.

The sections, explained

Direction of the letter

Practice ceasing to act, or client ending the engagement. Every section that differs — purpose, requests, consents, signature roles — swaps automatically.

Purpose and effective date

States that the relationship is ending and from when, and identifies the engagement documentation being brought to an end so there is no doubt which arrangement has closed.

Basis of cessation

Immediate, or on completion of named residual work. Choosing the second reveals a list for exactly what will still be finished — the only way to promise continuing work without contradicting the cessation statement.

Services and per-service cut-off

One switch per service — financial statements, income tax, activity statements, single touch payroll, superannuation guarantee, bookkeeping, ASIC and corporate secretarial, SMSF administration — each printing the last period completed, the lodgment date, and a statement that no responsibility is accepted for later periods.

Obligations falling due

What is coming up after the cut-off, with the caveat that lodgment dates may change once the agent relationship ends, because concessional dates under a lodgment program depend on that relationship.

Agent links and authorisations

Removal of the practice's links and authorisations across every entity involved — company, directors, trusts, super funds — plus software access, state revenue office authorisations, and what the incoming agent must do at their end.

Records and working papers

The client's documents returned, the practice's working papers identified as its property, a collection period, and the client's own tax-law retention obligations stated alongside it.

Outstanding fees and lien (optional)

What is unpaid and when it is due, and any lien reserved only so far as the law and professional obligations permit — kept in its own section rather than used to condition the return of records.

Handover consent

The client's written authority for the practice to communicate with the named incoming agent and release information relevant to the transition, since confidentiality obligations continue after the engagement ends.

Confidentiality, liability and governing law

Confidentiality survives; the liability position in the original terms of engagement — including any professional standards scheme — continues to apply to work already done; and the governing state or territory.

Client response

A signature block for the acknowledgement, which is what turns the handover consent and the cut-off dates into something agreed rather than asserted.

What to get right in an Australian disengagement

Confirm the current position with your professional body and the Tax Practitioners Board before sending a disengagement letter.

• Document the exit as carefully as you documented the engagement

  APES 305 Terms of Engagement requires members in public practice to document and communicate the terms of an engagement, and it addresses recurring engagements. A written disengagement letter is the corresponding discipline at the end: it records where each service stopped, so neither the client nor a successor has to reconstruct it.

  APESB — APES 305 Terms of Engagement

• Remove agent links and authorisations rather than assuming they lapse

  A tax agent's link to a client in the ATO's online services, and any authorisation held for related entities, continues until it is removed. Ending the engagement does not remove it, so a former agent can keep appearing as the client's authorised contact. Where client-to-agent linking applies, a new agent must be authorised by the client through the ATO's own channel — the agent cannot do it for them.

  ATO — client-to-agent linking

• Warn that lodgment dates can change once the agent relationship ends

  Concessional lodgment dates available through a tax agent's lodgment program depend on the agent relationship being in place and the client's lodgment history. A client who leaves an agent and does not appoint a replacement promptly may find an obligation falls due sooner than they expected, so upcoming dates should be listed with a note that they need reconfirming.

  ATO — lodgment program due dates for agents

• Confirm the incoming agent is registered, and aware of the current Code obligations

  Providing tax agent services for a fee requires registration with the Tax Practitioners Board under the Tax Agent Services Act 2009. The Tax Agent Services (Code of Professional Conduct) Determination 2024 added eight obligations, commencing 1 January 2025 for practitioners with more than 100 employees and 1 July 2025 for those with 100 or fewer as at 31 July 2024, including a duty to proactively keep clients informed of significant matters.

  TPB — the Code Determination: background and context

• Do not use a lien in a way that cuts across your professional obligations

  Any entitlement to retain documents for unpaid fees is limited: it does not extend to everything in the file, it does not attach to documents belonging to the client and provided in the ordinary course, and exercising it so that a client cannot meet a lodgment obligation creates a professional-conduct problem larger than the fee. Deal with unpaid fees as a debt, separately from the return of records.

• Respect the client's own retention obligations when setting a collection deadline

  Most business records must be kept for five years under tax law, with longer periods where a capital gains tax asset or a specific provision applies. A short collection window followed by destruction can dispose of records the client is legally required to keep, so state the retention position in the letter and make destruction subject to notice.

  ATO — record keeping for business

How to write the letter

1. Choose the direction. Practice ceasing to act, or client ending the engagement. This decides the purpose wording, the requests and the consents.
2. Fill in the parties and the engagement being ended. Sender and recipient details, your reference, the date of this letter, and the date of the engagement documentation being brought to an end.
3. Set the basis and effective date. Immediate, or on completion of named residual work. If the second, list exactly what will still be finished.
4. Switch on each service and give its cut-off. For every service, the last period completed and the date it was lodged. Then list the obligations falling due next.
5. List every entity whose authorisations need removing. The company, its directors, trusts and any super fund are separate authorisations. Naming them is what stops one being missed.
6. Send it and keep the signed response. Download as Word or PDF, send it with a copy for signature, and keep the signed response — it is the written authority that lets you deal with the incoming agent.

Frequently asked questions

Related templates

• Accountants' Terms of Engagement Template (Australia)
• Accounting Engagement Letter Template (Australia)
• Acknowledgement Letter Template (Australia)