Complete guide to ATO document processing for accounting practices

ATO document processing is a consistent and critical operational responsibility for ensuring compliance, supporting client services, and peak season sustainability.

This guide for accounting practices covers:

• What ATO document processing means
• How firms access ATO correspondence
• Steps to manage ATO documents efficiently
• Common ATO processing delays and fixes
• Tools that streamline ATO document workflows

ATO document processing includes:

• Retrieving ATO-issued communications from the correct, official digital channels.
• Understanding what the ATO needs — or what action is implied.
• Determining the next steps, whether for your practice or for the client.
• Securely delivering client-ready communication.
• Keeping accurate, auditable records in the firm’s systems.

There are two distinct parts of this process:

1. ATO channels and retrieval methods
   These are the methods in which the ATO communicates with practices and their clients
   
   All ATO correspondence is received digitally via email, SMS, Online Services for agents and clients and portals like MyGov – each with its own role and specific access requirements. The ATO may utilise paper-based mail as well.
   
   
2. Internal practice workflow
   Once an ATO correspondence is retrieved, firms then process it according to their internal document workflow processing system. Typically, this looks like:  intake → triage → assign → action → deliver → file.

Official ATO channels for retrieving correspondences

Accounting practices primarily retrieve client correspondence via:

• Online Services for tax and BAS agents
  This includes Communication history, which displays digital communications sent to the practice on behalf of clients.
• myGov Inbox
  When clients opt to receive ATO mail directly, their messages go to the myGov inbox. Notifications are sent by SMS/email, but the mail itself must be viewed inside myGov.
• Online Services for business
  Business entities access their own correspondence here, using their digital identity and proper authorisation. 

The ATO outlines where you can access these inboxes. These channels run concurrently, and practices must ensure communication preferences are set correctly to avoid missing important notices. 

Authorisations and permissions

Accessing ATO Online Services requires:

• A government-issued Digital ID (myID, formerly myGovID) for secure log-in.
• Authorisation managed through the Relationship Authorisation Manager (RAM), which is a service that allows tax professionals to access ATO Online Services on behalf of a practice or client entity. Firms can assign employees full or limited access to clients linked to registered agent numbers (RAN).

Where the “mail” shows up

Digital ATO correspondence typically appears in:

• Client mail inbox — where communications land when the practice is set as the preferred address.
• myGov — where communication goes when the client is set as the preferred address.
• Communication history — a consolidated log of available correspondence across official channels, searchable by type, timeframe, and client.

ATO issues 600+ digital correspondence types, but these can be meaningfully grouped by intent—that is, what the ATO is trying to tell the taxpayer or what actions it prompts.

Lodgement and returns

These are aimed at reminding taxpayers to lodge returns, respond to outstanding items, or avoid compliance escalation.

For example: early reminders and overdue notices, notice of assessments (NOAs), delay notifications, and error notifications.

Typical next steps: review and confirm lodgement status, reconcile potential discrepancies, advise clients on next steps, and note objection windows.

Activity statement / PAYG / GST

These relate to instalments, GST and PAYG obligations, and activity-statement-related information.

For example: entitlement advise, instalment notifications, and registration confirmation.

Typical next steps: review instalment information, assess cash-flow implications, confirm and schedule lodgement obligations, and communicate changes to clients.

Accounts and payments

Notices to inform clients of status updates and request actions.

For example: statements of accounts, penalty notices, and notifications of refunds. 

Typical next steps: verify balances, discuss payment options where necessary, and provide timely reminders to clients.

Verification and reviews

Communications about discrepancies the ATO has identified. This often requires action from the tax agent or client. 

For example: income discrepancy notices, certainty checks, and notification of mistakes in income tax return. 

Typical next steps: reconcile client records, review ATO findings, advise client on impact, escalate internally if needed.

Compliance and escalation

These indicate that the ATO is moving toward enforcement, penalties, or is already in the compliance action phase. 

For example: penalty warnings and notifications, audit letters, and payment demands.

Typical next steps: come up with a response plan, make note of key deadlines, communicate quickly with clients to resolve missing information, and consider objections where applicable.

Understanding the intent behind different ATO correspondences gives tax professionals a clear foundation for fast and accurate triage. When patterns are recognised early, firms can act quickly with minimal risk, maintain client confidence, and ensure no critical deadlines or obligations are missed.

What’s needed is a practice-wide standard operating procedure (SOP) around managing ATO correspondences from intake to final resolution.

Now we look at the practical, repeatable steps that accounting practices take to manage ATO correspondence workflows efficiently. You can customise and embed these steps into your firm’s workflow to establish consistency in ATO document handling.

This is not prescribed by the ATO. Instead, it reflects industry best practices that firms employ for document workflow processing to reduce errors, keep up with deadlines, and maintain a strong audit trail.

Step 1: Intake (daily)

Set a consistent schedule for checking all relevant ATO communication channels, particularly client mail and communication history. Daily checks are recommended so as not to miss anything. 

Important details to note when recovering correspondences:

• Client/entity
• Date received
• Type of communication
• Due dates
• Reference numbers

Make full use of Online Services features such as filters and CSV export functions to help support systematic intake of communication.

Step 2: Categorise the document

Once retrieved, each correspondence needs to be sorted before deciding on the next steps. But categorising each item according to the ATO’s 600+ individual document types will be an administrative nightmare.

Instead, focus on two dimensions: actionability and intent. 

• Action Required or FYI: Decide if this correspondence is simply informational for you and your client, or does it require a specific response/action plan.
• Intent: Label the documents based on intent - debt/payment, lodgement, audit/review, GST/PAYG/Super, penalties or interest, identity/security.

Step 3: Deadlines and ownership

Designating a clear owner for each ATO item will ensure nothing slips through the cracks.

Make sure to:

• Assign one clear owner per ATO item.
• Log and track due dates (28-day responses are common for reviews, objection windows can vary between 60 days to 4 years).
• Trigger escalations for items with short timeframes or compliance sensitivity.
• Layout informal service level agreements (SLAs) if necessary.

SLAs are not ATO requirements but are good practice for firms to emulate when setting expectations with clients about the service being provided. 

Step 4: Decide the response path

Accurate routing of correspondences from the beginning reduces the need for rework later.

Firms may take any number of actions, including:

• Requesting client confirmation (i.e acknowledgement of an NOA outcome or approval of a payment plan).
• Preparing lodgements or amendments.
• Addressing payment or debt matters, including setting up payment plans.
• Escalating to managers or partners for high-risk or complex matters (e.g., audits, amended assessments, formal notices).

Step 5: Prepare and send client-ready communication

Instead of forwarding raw ATO documents to clients, it is best practice to convert them into a secure, client-ready format in customised emails that provide context and detail about the document. This is especially important because myGov notifications are only courtesy alerts, and clients must log in to see the actual message.

Remember to:

• Use a secure distribution method (portal, encrypted delivery, redaction) to protect sensitive client information.
• Summarise the purpose of the document.
• Clarify what clients need to do.
• Highlight due dates.

Step 6: Recordkeeping and audit trail

A structured, organised filing system is key to accounting document management and compliance. Records must be easily accessible and trackable while remaining secure.

Records must include:

• The original correspondence.
• A comprehensive log of the nature, scope, and outcome of the services provided.
• Notes or internal commentary of actions taken and advice provided, including relevant facts, assumptions, reasoning, and methods of calculations, where applicable.
• Evidence of client communication and/or approval.

Records must be kept for at least 5 years, consistent with ATO record-keeping rules and the Tax Practitioners Board's professional obligations. Longer retention periods may apply in certain circumstances.

Once a solid foundation of internal processes is established, accounting firms can implement automation to reduce workloads and streamline workflows.

Steps that can be automated

Managing 600+ document types with specific requirements and potential actions is the unavoidable repetitive nature of ATO processing, meaning the workflow benefits greatly from automation. 

It can make a big difference in:

• Intake and logging
• Document tagging and categorisation
• Assigning tasks
• File naming and storage
• Status tracking from “received” to “completed”

Document workflow automation tools like ATO SmartDocs can streamline these steps while still giving you full control of the review and client communication process.

Steps that should remain human-led

Of course, while automation can help remove the burden of repetitive administrative tasks, certain elements of ATO document processing must remain firmly in the hands of qualified professionals.

These are things that rely on judgement, interpretation, and contextual understanding which a software cannot replicate:

• Interpreting what the ATO is requesting
• Understanding client-specific implications
• Applying tax logic and advisory insight
• Reviewing outputs before sending to clients

Automation enables tax professionals to focus on using their expertise and deep understanding of each client’s broader circumstances to provide quality service.

What good ATO handling looks like

Strong ATO correspondence processes create a predictable environment that enables teams to manage high volumes of documents without stress or confusion. Firms can shift from reactive problem-solving to a proactive, well-governed process that is consistent and scalable.

This looks like:

• Fewer missed deadlines
• Faster sorting and turnaround
• Clear accountability
• Easy retrieval of past communications
• Reliable, consistent documentation

Even great workflows are not immune to operational issues. The table below outlines common roadblocks in the process, along with practical fixes to keep ATO document processing on track.

Simple, practical controls are critical for security and compliance when it comes to accounting document management.

Consider the following:

Access & security

• Only give document and system access to employees who need it
• Update/remove access when someone leaves or changes roles
• Ensure all employees use their unique logins for all systems

Tracking & oversight

• Clearly track who handles each document
• Record every action taken and when
• Maintain consistent logs

Storage & filing

• Establish a robust filing system
• Adhere to the 5-year minimum storage rule (or longer if required)
• Ensure records are readable, complete, accessible, and safe to share

Client communication

• Always redact sensitive information (i.e., tax file numbers) when sharing ATO documents
• Employ a secure client portal for document sharing and communications

For a quick overview, here’s a checklist of ATO processing steps to guide you:

• Set cadence for checking ATO correspondences
• Assign inbox ownership
• Use standard categories
• Apply SLA and escalation rules
• Choose a consistent client‑delivery method
• Maintain proper filing 

Managing ATO correspondence doesn’t have to be stressful or reactive. Clear workflows supported by ATO SmartDocs will ensure your practice stays ahead of deadlines, reduces risks, and delivers a smoother, more reliable client experience.

Missed deadlines, lost notices, and angry client calls are behind you. Explore today to see just how much time and effort you can save with ATO SmartDocs. Check out our plans to find the right one for your firm.