ATO Lodgement Calendar for Tax Agents and Accounting Firms
Learn how accounting firms can build an ATO lodgement calendar for BAS, IAS, income tax, FBT, TPAR and client reminders.
This guide is written for Registered tax agents and accounting firms managing ATO lodgement programs. It explains how the obligation fits into Australian public practice, how firms can plan lodgement deadlines before they become urgent, and how client reminders, workflow ownership and practice management routines can reduce compliance risk.
Key dates and timing considerations
Due dates are only useful when the firm turns them into a working system. Australian accounting firms need to know the statutory or ATO lodgement deadline, but they also need earlier internal workflow dates for record collection, preparation, manager review, partner review, client approval and final lodgement.
- ATO lodgement dates depend on obligation type, reporting frequency and tax agent program rules.
- Firms should maintain client-level due dates rather than relying only on generic date lists.
- Internal workflow dates should be earlier than ATO lodgement deadlines.
ATO lodgement calendar for multi-entity groups
Use this sample calendar to model companies, trusts, SMSFs and employer obligations in one view. Import the calendar file into Apple, Google or Outlook, or use the CSV as a spreadsheet starting point.
July 2026
August 2026
September 2026
November 2026
February 2027
March 2027
May 2027
June 2027
Template dates are examples for planning. Registered tax agents should verify ATO lodgment program concessions and client-specific due dates before relying on any calendar entry.
How to operationalise this inside an accounting firm
The most effective firms treat this topic as part of a wider compliance operating rhythm, not as an isolated date in a diary. A partner, director or manager should be able to open one view and see which clients are affected, which due dates are coming up, which reminders have been sent, which work is waiting on the client and which lodgements are at risk. That visibility is what turns a tax calendar into a practice management tool.
For public practice teams, the first step is to define ownership. Every client should have a responsible manager or staff member, and every recurring obligation should have a clear workflow path. That path normally includes information requested, information received, preparation started, manager review, partner review, client approval and lodged. Smaller firms may use fewer stages, but the principle is the same: the firm needs a shared language for progress.
Client communication
Client reminders should be specific, early and consistent. A useful reminder explains what the firm needs, when it is needed, what the client should do next and why the timing matters for ATO compliance or the relevant lodgement deadline.
Manager visibility
Managers need more than a list of dates. They need to know which clients have not responded, which jobs are unassigned, which obligations are approaching review and where workflow capacity is becoming tight across the team.
This is especially important when a firm is moving away from a spreadsheet. Spreadsheets can record due dates, but they rarely create reliable accountability. They do not automatically show whether a client reminder was sent, whether a manager changed, whether an email bounced, or whether a lodgement is still waiting for approval. A structured compliance workflow gives the team a better way to manage recurring deadlines without relying on memory or inbox archaeology.
What an ATO lodgement calendar should do
An ATO lodgement calendar should help a tax agent see what needs to be lodged, when it is due, who owns the work and whether the client has supplied the required information. It should cover recurring activity statements and annual returns without forcing the firm to check multiple systems.
For accounting firms, the ATO calendar is only part of the picture. State payroll tax, super guarantee and internal workflow tasks also affect the same team. A good compliance calendar keeps ATO obligations visible while giving managers a practical operational view.
For a public practice, the operational risk is rarely the date itself. The risk is that no-one owns the follow-up, the client reminder is sent too late, the manager cannot see what is stuck, or the team is using a spreadsheet that is no longer trusted. TaxCalendar is designed to connect due dates, client reminders, workflow ownership and compliance visibility in one place.
Downloadable calendar template
Use the calendar template on this page to model multiple entities with BAS, IAS, FBT, TPAR, STP and income tax return obligations.
Calendar import options
Download the sample as an .ics calendar file for calendar apps or as a CSV file for spreadsheet planning and review.
Tax agent lodgment program considerations
Registered tax agents may have concessional lodgement dates under the ATO lodgment program. These concessions are valuable, but they can also make generic public date lists less useful. A firm needs to record the date that applies to the specific client and obligation.
Firms should review ATO program dates annually and update internal templates before the new compliance year starts.
Connecting ATO dates to client communication
A lodgement calendar is more useful when it connects to reminders. If a BAS is due soon but the client has not supplied records, the system should make that obvious. If a return is prepared but awaiting signature, the reminder should say that instead of sending a generic information request.
Recommended reminder and workflow cadence
A strong compliance process separates client communication from internal work allocation. Tax agents can use client reminders at 30, 14, 7, 2 and 0 days before the due date, while managers use earlier workflow dates to check whether records have arrived, preparation has started and review is on track.
This matters because lodgement deadlines are rarely missed for one dramatic reason. They are missed because small items stay hidden: a missing email address, an unassigned manager, a client who has not approved the work, or an obligation sitting in a spreadsheet that only one person trusts. TaxCalendar is built to make those issues visible before they become deadline pressure.
Where TaxCalendar fits
TaxCalendar helps Australian accounting firms turn compliance dates into a visible workflow. Firms can track clients, obligations, due dates, manager ownership, reminder status and lodged status in one place. That gives public practice teams a practical operating layer for BAS, IAS, ATO lodgement calendars, annual returns, client reminders and recurring practice management routines.
Related questions
Is an ATO lodgement calendar the same as a tax calendar?
Not exactly. An ATO lodgement calendar focuses on ATO obligations, while a broader tax calendar may include super, payroll tax and firm-specific compliance work.
Do tax agents get different due dates?
Registered tax agents may receive concessional dates through the ATO lodgment program, depending on the obligation and client.
Can TaxCalendar support an ATO lodgement calendar?
Yes. TaxCalendar helps firms track ATO obligations, due dates, reminders and workflow ownership.