TL;DR
If your accountant is unresponsive, missing deadlines, or failing to provide proactive advice, it may be time to switch. Changing accountants mid-year is straightforward via ATO Online Services for Business. Your old accountant cannot block the transfer. Find a firm offering partner access, dedicated teams, and advisory depth beyond compliance.
Most business owners stay with an underperforming accountant far longer than they should. The holding pattern often stems from a mistaken belief that switching mid-year is complicated or disruptive. In reality, Australia’s tax agent nomination system makes the process straightforward. This guide covers the warning signs your accountant is not working for you, the exact switching process, and what to look for in your next firm.
The most common signs include consistently missed lodgement deadlines, difficulty reaching your accountant, no proactive tax planning, unclear fixed-fee pricing, and reluctance to adopt cloud-based tools. If your accountant only contacts you when something is due, that is a compliance-only relationship, not an advisory one.
Missed deadlines are the clearest red flag. The Tax Agent Services Act 2009 requires agents to act with reasonable care and diligence. When your accountant consistently misses lodgement dates, you face ATO penalties, interest charges, and potential compliance complications. Missed deadlines also suggest a workload or organisation problem at the firm. Our guide to key ATO due dates for 2026 shows exactly what your accountant should never miss.
Unresponsiveness is the second warning sign. If it takes weeks to reach your accountant by phone or email, or if you only hear from them when something is due, you are experiencing compliance-only service. Advisory-first firms maintain defined communication channels and respond within 48 hours as standard.
Lack of proactive tax planning indicates underservice. A strong accountant initiates conversations about business structure, tax-timing strategies, and forward cash flow planning. If your accountant has never discussed R&D tax incentive eligibility or business structuring, that is a gap worth addressing.
Fee opacity is another concern. You should receive a fixed-fee proposal before engagement, with clear scope and no surprise hourly add-ons. If your accountant cannot articulate pricing or it varies wildly between periods, that signals disorganisation. We compare the two pricing models in our post on fixed-fee accounting vs hourly billing.
Finally, resistance to cloud-based tools suggests outdated practice. Modern accountants use Xero or similar platforms, real-time reporting dashboards, and automated data flows. If your accountant still requests Excel spreadsheets or manual bank reconciliation, the firm is operating with legacy systems that cost you time.
Changing accountants mid-year involves five core steps: decide to switch, select your new registered tax agent, nominate them through ATO Online Services for Business, wait for their acceptance within 28 days, and gather your records. Your old accountant’s authorisation is automatically removed once the new agent links to your account.
The process is driven by the ATO’s client-to-agent linking system, introduced on 13 November 2023. This system replaced the previous approach where agents could link directly. You now control the process entirely. Note the nomination step applies to businesses and other entities with an ABN; individual taxpayers do not need to nominate, because their new agent can add them directly.
Here is the step-by-step process:
Once accepted, your new accountant can see your full ATO lodgement history, prior returns, and activity statements. Your old accountant’s link is automatically severed. There is no information gap, and no work is disrupted.
When you nominate a new tax agent, your previous agent’s authorisation is automatically removed once the new agent completes linking. You do not need to separately de-authorise your old agent. The nomination expires if the new agent does not accept within 28 calendar days.
The client-to-agent linking process replaced the old system entirely. Under the old system, agents could link directly without explicit client nomination, which created security and control concerns. Now, you hold the power. Your old accountant receives notification that their link has been severed, but they cannot reverse it or block the transition.
If you use separate agents for different services, be specific. You might nominate a new agent for income tax only while keeping your existing BAS agent. Each service has its own nomination line, so you control which agent handles which function.
For more detail on this process, see the ATO client-to-agent linking checklist.
Your old accountant cannot prevent you from switching. Under the TPB Code of Conduct, they must act in your interests and provide reasonable assistance during transition. They retain their working papers but must give you access to your source documents.
There is an important legal distinction between working papers and source documents. Working papers are the accountant’s internal notes, analysis, calculations, and advice memos. These remain the accountant’s property. Source documents are your receipts, contracts, invoices, bank statements, and payment records. These belong to you.
A professional accountant will cooperate. They must provide reasonable assistance under the Tax Agent Services Act 2009. If your old accountant refuses to hand over your documents, you have a complaint pathway through the Tax Practitioners Board (TPB).
Additionally, your ATO lodgement history is always accessible to you through your myGov account, regardless of which agent is linked. This includes prior tax returns, activity statements, and all correspondence with the ATO. Nothing goes missing in the transition.
Sometimes the issue is not one accountant but how the whole practice is run. Heavy offshore outsourcing you were never told about, a revolving door of junior staff, and firms that trade client lists like assets all point to a practice that serves its owners first. Each is a legitimate reason to switch.
Outsourcing itself is not a dealbreaker; plenty of firms use offshore processing responsibly for routine tasks. Heavy reliance combined with silence is the problem: your work is prepared by people who have never spoken to you, review time shrinks, and nobody in the local office truly knows your file. The Tax Practitioners Board publishes specific guidance on outsourcing and offshoring: your accountant remains fully responsible for the work and must not disclose your information to third parties, including offshore processing centres, without your permission. If you only discovered your work goes offshore after something went wrong, treat that as a warning sign.
Watch the team as closely as the work. If a different junior prepares every BAS and your contact person changes each quarter, the firm is not keeping its people. High turnover usually reflects underinvestment in professional development, inflexible working arrangements that qualified accountants no longer accept, and a practice that struggles to attract local talent. Both CPA Australia and the TPB require at least 120 hours of professional development over three years; firms that treat that minimum as a target tend to give dated advice. Every departure also costs you directly, because you re-explain your business to a stranger while paying the same fees.
Finally, be wary of practices still run on a 1970s ownership model, where the client list is an asset to be bought and sold and staff are treated as interchangeable production units. If your firm was sold or merged and you found out after the event, or your trusted adviser changed without notice, you are entitled to reassess the relationship. You are a client, not a line item in a sale contract. Firms that invest in their own people, rather than trading client books, keep both staff and clients for the long term.
Our CPA team in Melbourne makes the transition straightforward. We handle the nomination process and ensure nothing falls through the cracks.
Contact Us TodayA Melbourne medical practice came to 42 Advisory after feeling underserviced by their previous accountant. The practice had received no advice on optimising business structure, had not been told about potential eligibility for the R&D Tax Incentive for clinical research activities, and lacked any cash flow projection or forward planning capability.
After switching, we reviewed their practice structure, identified potential R&D Tax Incentive registration pathways for qualifying research activities, and implemented three-way cash flow forecasting. The cost of not receiving proactive advisory was far greater than the difference in accounting fees. One advisory conversation about R&D eligibility paid for the entire year of accounting services.
This pattern holds across industries. The right accountant pays for themselves through proactive advice, not just compliance filing. For medical practices specifically, see our guide on accounting advisory for health practices.
Prioritise partner access, fixed fees agreed in writing, industry expertise, cloud-based systems, advisory depth beyond compliance, and defined response times. Confirm the firm's registration on the Tax Practitioners Board register, and ask directly who will do your work, where they are based, and how long the team has been with the firm.
When selecting your next firm, prioritise these characteristics:
For the full selection framework, including qualifications, fees, and local considerations, see our guide on how to choose the right accountant in south-east Melbourne.
At 42 Advisory, you will always have access to a partner and a dedicated team. No chasing. No missed deadlines. No stress. To learn more about our CPA accountant services in Melbourne, or to discuss your specific situation, contact us today.
Switching accountants mid-year is straightforward via the ATO’s agent nomination system. Your old accountant cannot block you, and the process typically takes 2 to 28 days to complete. There is no information gap and no disruption to lodgements or services.
The key is recognising when your current arrangement is not serving you. Missed deadlines, poor communication, lack of proactive advice, and resistance to modern tools are all signals. The right accountant offers advisory depth, clear fees, partner access, and genuine responsiveness.
If you are considering a switch, you have all the tools you need. Start by identifying a firm that offers what you need, then nominate them through ATO Online Services for Business. The transition takes days, not weeks. The long-term benefit of advisory-led accounting far outweighs any short-term disruption.
Whether you are considering a switch or just want a second opinion, our Melbourne CPA team is ready to help.
Schedule a MeetingDisclaimer: The information provided in this article is general in nature and does not constitute specific tax, legal, or financial advice. We recommend seeking professional advice tailored to your individual circumstances. 42 Advisory is a CPA firm and Registered Tax Agent.
Yes. There is no requirement to wait until the end of a financial year to change accountants. Your new agent can pick up where the previous one left off. Any work already lodged (such as prior BAS or tax returns) remains on the ATO’s records regardless of which agent is linked.
There is no legal requirement to notify your old accountant before nominating a new one. However, as a matter of professional courtesy, it is generally advisable to let them know. This also gives you the opportunity to request any outstanding documents or clarify any work in progress.
The technical process takes 1 to 28 days. Once you submit your nomination through ATO Online Services for Business, your new agent has 28 calendar days to accept. Most agents complete the linking within a few business days.
Not if you time the switch sensibly. We recommend switching between lodgement periods where possible. Your new accountant will have access to your ATO lodgement history from day one, so there is no information gap.
Introduced on 13 November 2023, the client-to-agent linking process requires businesses with an ABN to nominate their tax agent through ATO Online Services for Business. This replaced the previous system where agents could link to clients directly. The change was designed to improve security and give businesses more control over who accesses their tax information.