The correct ATO due date depends on the taxpayer, entity, obligation and lodgement method. For an individual who self-lodges, the standard deadline is 31 October, with payment of a resulting tax bill generally due by 21 November.
A practice owner may be preparing an individual return while also managing a quarterly Business Activity Statement (BAS), payroll withholding, superannuation contributions and company or trust records. The Australian Taxation Office (ATO) does not operate one universal deadline. Dates change according to the obligation, reporting cycle, entity type, prior compliance history and whether a registered tax or BAS agent is involved. A dependable calendar separates lodgement, payment and contribution dates, rather than treating them as one task.
This guide is for individuals, sole traders, employers, companies, trustees, self-managed superannuation fund (SMSF) trustees, employee share scheme participants and not-for-profit organisations. It also helps advisers and finance teams coordinate responsibilities across several entities.
Currency note: This article reflects Australian rules, thresholds and regulator guidance current as at 09/2026.
Time-sensitive figures are labelled Current as at 09/2026 and should be checked against current ATO due-date guidance. The calendar below covers ten recurring obligations, followed by an Australian worked example, a comparison table, filing controls, penalties, FAQs, three Everglow resources, the required contact pathway and General Advice Warning.
Table of Contents
- 1. Start with the individual income tax return
- 2. Put BAS reporting on a quarterly rhythm
- 3. Treat PAYG withholding as money held for the ATO
- 4. Separate superannuation contributions from BAS work
- 5. Plan the SMSF annual return and audit as one process
- 6. Review FBT before the annual return becomes urgent
- 7. Review Division 7A positions before 30 June
- 8. Capture CGT when an asset is sold
- 9. Match GST reporting to the assigned cycle
- 10. Report employee share scheme information carefully
- 10 ATO Due Dates Compared
- Build a calendar that survives the deadline
1. Start with the individual income tax return
For an individual who prepares and lodges their own return, the standard due date is 31 October, or the next business day if 31 October falls on a weekend. A self-lodged return prepared between 1 July and 31 October that produces a tax bill generally has a payment due date of 21 November, according to ATO tax return preparation guidance. Current as at 09/2026.
That deadline can apply to salary and wages, business income, dividends, rental income and capital gains. The return reconciles amounts already withheld or paid with the taxpayer's final assessment. Lodgement and payment are separate controls, so a person who expects a balance should identify the likely cash requirement before submitting.
A registered tax agent may have access to a different lodgement program, but that arrangement doesn't remove the need to provide complete information early. Agent coverage, overdue prior returns and special ATO circumstances can change the timetable. Use the ATO's current instructions and consider ATO tax return dates for individuals and businesses when building an internal schedule.
What should be ready before October
Collect income statements, dividend and interest records, rental information, investment sale documents and deduction evidence before the final lodgement window. Review the prior return for recurring categories, but don't assume last year's treatment applies to a changed work arrangement, residency position or investment.
Dr Anya Sharma, a Sydney sole trader, might need to bring together consultancy income, dividends and rental information before lodging. If she expects tax payable, earlier preparation could give her more time to reserve cash. Her correct deadline still depends on whether she self-lodges or uses an agent, and on any outstanding compliance history.
2. Put BAS reporting on a quarterly rhythm
A Business Activity Statement (BAS) brings together reporting and payment obligations such as Goods and Services Tax (GST) and Pay As You Go (PAYG) instalments or withholding. For quarterly BAS, the standard cycle is 28 October, 28 February, 28 April and 28 July, as set out in ATO BAS guidance. Current as at 09/2026.
Monthly activity statements are generally due on the 21st day of the following month, while quarterly activity statements are generally due on the 28th day after the reporting period, with Quarter 2 due on 28 February. Registered agents may receive extensions under the lodgement program. For example, Quarter 4 2025–26 may move from 28 July 2026 to 25 August 2026, and Quarter 1 2026–27 may move from 28 October 2026 to 25 November 2026, subject to the ATO program.
The practical distinction is important. A BAS can be lodged on time while the resulting GST or PAYG amount remains unpaid. That may preserve compliance with lodgement requirements, but it doesn't eliminate the payment obligation or possible interest.
Reconcile before the statement arrives
Monthly reconciliation is more reliable than reconstructing a quarter in the final week. Check sales, purchases, GST coding, payroll records and account balances. Keep the evidence supporting the figures, and escalate mixed taxable and GST-free supplies before submission.
Tom, a Brisbane tradie, could use a monthly GST reconciliation to identify whether materials, subcontractor costs and invoices have been coded correctly. If a quarter produces a net payment, setting aside funds as invoices are collected may be more dependable than waiting for the BAS due date. BAS submission dates and planning guidance can sit alongside the ATO calendar, but the official ATO date remains the authority.
3. Treat PAYG withholding as money held for the ATO
A payroll run can look correct while the withholding liability is wrong in the ledger. Employers hold PAYG withholding amounts from employee payments for the ATO, so those funds should be tracked separately from operating cash and reconciled before reporting.
PAYG withholding is reported on the same activity statement as GST for many employers, but it needs its own payroll control. Compare payroll reports, employee payment records, the accounting ledger and amounts transferred. A mismatch can require a corrected statement, even when the BAS itself was lodged on time. The ATO activity statement due-date rules should be checked for the applicable reporting and payment requirements, including adjustments where a due date falls on a weekend or public holiday. Current as at 09/2026.
Castle Medical GP partnership may need to review withholding for doctors, nurses and other staff before lodging its BAS. Changes in salaries, new employees, termination payments and unusual pay runs deserve specific attention.
The control that matters most
Assign responsibility for approving payroll totals and reviewing the reporting and payment status. Larger organisations can separate these duties, while smaller practices can document an independent review.
Payroll software calculates withholding, but it does not replace oversight. A cash-flow shortfall also does not make withheld amounts available for business use. If payment may be late, lodge accurate figures where possible and contact the ATO promptly. Review PAYG withholding obligations alongside payroll procedures throughout the year, rather than leaving the task until year-end.
4. Separate superannuation contributions from BAS work
Superannuation Guarantee (SG) contributions require a separate control from BAS preparation. A BAS may be lodged on time while a contribution is delayed in payroll processing, held in a clearing house or rejected by the fund.
For quarterly contributions, the payment must reach the fund by the 28th day after the quarter ends: 28 October, 28 January, 28 April and 28 July. The Superannuation Guarantee Charge can apply when a contribution arrives late, even if the related BAS was lodged on time. Calendar the contribution deadline independently, then allow time for payroll approval, clearing-house processing and exception handling.
Employers should retain evidence of employee eligibility, ordinary time earnings calculations, fund details, contribution files and successful receipt. A payroll report records the calculation, but it may not prove that the fund received the payment by the required date.
Why the deadline needs an owner
Castle Medical GP partnership could assign calculations to its payroll manager and payment verification to its practice manager. If a clearing-house payment fails, the original instruction is not evidence of completion. The exception should be identified, corrected and documented promptly.
A sole trader without employees generally has no employer SG obligation for personal drawings. If Dr Anya Sharma employs a receptionist, her business may have employer obligations for that employee. Personal super contributions follow different rules and should be reviewed separately from employer contributions. A practical overview is available in how superannuation works in Australia.
5. Plan the SMSF annual return and audit as one process
An SMSF annual return can become difficult to lodge when the accounts, investment records and audit file are assembled too late. Trustees should coordinate the financial statements, contribution data, member transactions and independent audit from the start.
The audit may identify valuation, documentation or compliance issues that need correction before lodgement. Gather bank statements, broker records, property documents, leases, contribution reports and trustee minutes early. This gives the accountant time to resolve issues rather than just meeting the filing date.
Trustees need an evidence trail
Margaret and David, trustees of a Wahroonga SMSF, may hold property, term deposits and shares. Their accountant and auditor need records supporting income, expenses, valuations, related-party dealings and contributions. Overseas assets or a new investment arrangement should be raised early, because the audit may require further evidence or analysis.
An SMSF annual return is generally due by 31 May where a registered tax agent lodges it. The independent audit must be completed before lodgement, so the engagement should begin well before the fund's year end. The exact date can depend on the fund's circumstances and current ATO instructions. Trustees should confirm it through ATO income tax due dates and review SMSF accounting and compliance support when assembling the audit file. Current as at 09/2026.
6. Review FBT before the annual return becomes urgent
Fringe Benefits Tax (FBT) applies where an employer provides certain benefits to employees or associates. The relevant FBT year runs from 1 April to 31 March, so the review should begin before the year closes. Motor vehicles, expense payments, entertainment, loans and other arrangements may require analysis.
The FBT return and payment process has its own timing and isn't just an extension of the individual or company income tax return. Employers should identify benefits from payroll, accounts payable, directors' expense claims, vehicle records and related-party arrangements.
Keep a benefits register
A register should record the benefit, recipient, date, business use, employee contribution and supporting documents. Castle Medical GP partnership, for example, may need to review vehicle access, entertainment and other benefits provided to doctors or associates. The tax treatment can depend on how the arrangement was provided and the available exemptions.
A small professional services firm may incorrectly assume that client meals and staff events have the same treatment. They don't necessarily. The right approach is to classify each arrangement using current ATO rules and retain the calculation. Where the employer has no reportable benefits, that conclusion should still be documented rather than left as an assumption.
7. Review Division 7A positions before 30 June
Division 7A can affect payments, loans and other benefits provided by a private company to shareholders or associates. A company loan may require a compliant agreement, interest and minimum yearly repayments. A payment made without proper treatment can create an unexpected tax issue for the recipient.
The key control is a year-round loan ledger, not a rushed June repayment. Reconcile drawings, private expenses paid by the company, asset transfers and repayments. Then have the arrangement reviewed under the current rules before relying on a repayment or journal entry.
Dr Anya Sharma might operate her medical practice through a private company and use company funds for a personal renovation. Whether the transaction becomes a deemed dividend depends on its documentation, terms, repayments and surrounding facts. A repayment arranged only to close the ledger may not produce the intended result if the underlying requirements haven't been met.
Practical rule: Don't wait for the annual accounts to reveal a private-company loan. Review the ledger during the year, then obtain advice before 30 June if the position is unclear.
Companies and super funds can have payment dates linked to their relevant lodgement date or notice of assessment. The ATO's registered-agent guidance explains that late lodgement can shorten the payment window, which is a cash-flow consequence as well as a compliance issue. Individuals and trusts under the registered-agent lodgement program illustrates why entity type and compliance history must be mapped separately. Current as at 09/2026.
8. Capture CGT when an asset is sold
A property contract signed this financial year can create a CGT reporting obligation even if settlement occurs later. Record the contract date, settlement date and asset details when the transaction is agreed, then retain purchase documents, legal costs, improvement invoices, valuation material and sale records.
The capital gain is reported in the income tax return for the year in which the contract is signed, not necessarily the year of settlement. Any resulting tax is payable under the assessment for that return, so the payment obligation can arise after the sale proceeds have been received or spent. Lodgement and payment therefore belong on separate calendar entries.
Structure changes the outcome
The Nguyen family's Parramatta property trust may sell an investment property. The trust deed, ownership history, beneficiary resolutions and distribution position can affect how the gain is reported. Review those records before settlement, because a trust cannot be treated as personal ownership.
For a company, trust or SMSF, the calculation, reporting and distribution consequences may differ from an individual's position. Main-residence, small-business and other concessions depend on specific conditions. Sellers comparing structures before settlement should also review Bizbe, Inc. tax strategies for sellers alongside a written CGT calculation.
Where the transaction is complex, prepare that calculation before signing or settling. Include the expected return year, likely assessment payment and any cash-flow gap between receiving sale proceeds and paying the resulting tax.
9. Match GST reporting to the assigned cycle
GST is collected through taxable supplies and accounted for through the BAS. A registered business generally compares GST collected with eligible input tax credits, subject to the nature of the supplies and supporting records. The business must distinguish taxable, GST-free and input-taxed transactions.
Monthly BAS obligations use the 21st-day cycle. Quarterly BAS use the established quarterly dates, including 28 October, 28 February, 28 April and 28 July, while an agent program may alter some lodgement dates. The ATO's quarterly PAYG instalment timing separately identifies the same standard quarterly dates for PAYG instalments. Current as at 09/2026.
Tom's Brisbane contracting business may need to review whether each invoice includes the correct GST treatment and whether each purchase supports an input tax credit. A bank transaction by itself doesn't establish the GST treatment. Tax invoices, adjustment notes and the purpose of the expense matter.
Cash-flow discipline is central. GST collected isn't business profit, and a refund shouldn't be treated as guaranteed until the records and BAS are reviewed. Businesses with mixed supplies, property transactions or unusual arrangements should obtain advice before claiming credits.
10. Report employee share scheme information carefully
An Employee Share Scheme (ESS) can create tax reporting obligations for both the employer and employee. The employee may need to report a discount or other taxable amount under the scheme rules, while the employer has information-reporting responsibilities.
The tax point can differ according to the type of interest, restrictions, vesting conditions and available elections. Employees should retain offer documents, grant notices, vesting records, market value information and disposal records. Employers should reconcile the scheme register to payroll and employee reporting data.
Coordinate employer and employee records
An employee who receives shares or options shouldn't wait until sale to ask how the arrangement is taxed. A later disposal may create a CGT event, but earlier ESS treatment may also matter. The correct result depends on the scheme terms and the employee's circumstances.
A professional entering an Australian employer's share plan may also need to consider residency, foreign reporting and the interaction between employment income and later asset disposal. Those questions are particularly important for new migrants and internationally mobile employees. The employer's report and the employee's return should tell a consistent story, supported by source documents.
10 ATO Due Dates Compared
| Item | Implementation Complexity 🔄 | Resource Requirements ⚡ | Expected Outcomes 📊 | Ideal Use Cases 💡 | Key Advantages ⭐ |
|---|---|---|---|---|---|
| Annual Income Tax Return (1 November deadline for individuals) | Medium 🔄, multiple schedules if many income streams | Moderate ⚡, income records, receipts, may need tax agent | 📊 Final tax position (refund or liability); ATO assessment | Individuals and residents with assessable income | ⭐ Predictable annual deadline; agent extension; carry‑forward losses |
| Business Activity Statement (BAS) – quarterly lodgement | Medium–High 🔄, GST, PAYG and other labels to reconcile each quarter | High ⚡, regular bookkeeping, invoices, accounting software | 📊 Quarterly GST/PAYG settlement; cashflow visibility | Businesses with ABN and turnover above threshold | ⭐ Frequent oversight; faster GST refunds; better cashflow control |
| PAYG Withholding – monthly/quarterly reporting | Medium 🔄, payroll calculations and withholding tables | Moderate ⚡, payroll system, employee/contractor records | 📊 Regular remittance of withheld tax; reduced year‑end liabilities | Employers and businesses that pay wages or contractor fees | ⭐ Spreads tax payments; protects employees from large year‑end bills |
| Superannuation Guarantee (SG) – quarterly lodgement & payment | Medium 🔄, payroll linkage and eligibility checks | Moderate ⚡, payroll software, fund details, funds to remit | 📊 Employer contributions made; avoids SGC penalties | Employers of eligible employees (casuals, part‑time, full‑time) | ⭐ Protects employee retirement; aligns with BAS timetable |
| Superannuation fund annual return (SMSF) – 31 May lodgement | High 🔄, audit, valuations, detailed disclosures | High ⚡, auditor and accountant fees, extensive records | 📊 Audited fund return; compliance confirmation; member statements | SMSF trustees managing self‑directed super assets | ⭐ Independent audit; documented compliance; supports lending/estate needs |
| Fringe Benefits Tax (FBT) annual return – 21 May lodgement | High 🔄, complex valuation rules and categorisation | Moderate–High ⚡, benefit registers, valuation tools, adviser input | 📊 Annual FBT liability and lodgement to ATO | Employers providing cars, housing, entertainment, loans | ⭐ Single annual deadline; clear valuation rules to reduce disputes |
| Division 7A loan repayment – due by 30 June | Medium 🔄, requires formal loan documentation and tracking | Low–Moderate ⚡, written loan agreement and repayment funds | 📊 Prevents deemed dividend; preserves shareholder/company tax positions | Shareholders borrowing from private companies | ⭐ Formal loans avoid unexpected taxable deemed dividends |
| Capital Gains Tax (CGT) – report in annual return (1 November) | High 🔄, cost base, discounts, exemptions and complex scenarios | Moderate ⚡, acquisition/disposal docs, valuations, adviser help | 📊 Capital gain/loss reported; tax payable or exempted | Disposals of property, shares, collectibles, business assets | ⭐ 50% discount for individuals; main residence exemption available |
| Goods and Services Tax (GST) – registration & input credits (quarterly via BAS) | Medium 🔄, distinguish taxable/GST‑free supplies and credits | Moderate ⚡, GST invoices, record retention, GST accounting | 📊 Net GST payable/refundable each quarter; compliance with ATO | Businesses over turnover threshold, or voluntary registrants | ⭐ Input tax credits improve cashflow; simple 10% rate for pricing |
| Taxation of Employee Share Schemes (ESS) – ESSIR & annual reporting | High 🔄, valuation, timing and reporting rules for schemes | Moderate–High ⚡, scheme docs, valuations, ESSIR lodgement | 📊 ESS income reported; employee tax at acquisition/vesting | Employers offering shares or options to employees | ⭐ Incentivises staff alignment/retention; possible CGT concession after 12+ months |
Build a calendar that survives the deadline
A workable ATO calendar starts with the entity and obligation, then records five separate fields: responsible person, preparation date, lodgement date, payment or contribution date, and evidence retained. The calendar should also record whether an agent is authorised, whether a substituted accounting period applies and whether an earlier return remains outstanding.
The following table is useful as a control framework. It shows the typical timing logic, but it doesn't replace the ATO's notice, registered-agent program or obligation-specific guidance.
| Obligation | Typical timing | Who should review it | Lodgement and payment distinction |
|---|---|---|---|
| Individual income tax return | 31 October for self-lodgment, subject to applicable rules | Individual and tax agent | Lodgement can precede or differ from payment of the resulting assessment |
| Quarterly BAS | Quarterly cycle, including 28 October, 28 February, 28 April and 28 July | Bookkeeper, BAS agent or business owner | Statement lodgement and GST or PAYG payment should be tracked separately |
| Monthly activity statement | 21st day of the following month | Bookkeeper, payroll reviewer and business owner | Reporting date and payment date generally coincide, but confirmation is still required |
| PAYG instalments | Generally 28 days after each quarter | Business owner and tax adviser | Instalment reporting and available cash should be forecast independently |
| Superannuation | Employer contribution and reporting cycle | Payroll owner and practice manager | Payment reaching the fund needs evidence, not only a payroll instruction |
| Company or trust return | Depends on entity type, size, compliance history and agent arrangements | Director, trustee and tax agent | Payment may be linked to lodgement or notice of assessment |
Monthly reconciliations work better than a year-end rescue exercise. Keep separate cash reserves for GST, PAYG and superannuation where those amounts are collected or withheld. When a deadline may be missed, lodge accurate material promptly where possible and contact the ATO rather than allowing an unresolved obligation to age.
The right calendar is not the one with the most dates. It is the one that connects each date to an owner, a cash decision and reliable evidence.
Worked example for a small professional practice
Consider Castle Medical GP partnership in Sydney. Its administrator might maintain a monthly payroll reconciliation, a quarterly BAS schedule, a separate superannuation payment register and an annual FBT review. The partners then review company, trust or individual obligations separately, because the partnership's reporting cycle doesn't automatically determine the dates for every associated taxpayer.
If the partnership uses a registered agent, the administrator should record the agent's program date and the legislative date. The earlier date can be used as the internal preparation target, while the later eligible date can be recorded as the regulatory deadline. This creates time for review without confusing preparation with permission to pay later.
Frequently asked questions
Does using a tax agent mean I can ignore 31 October?
No. A registered tax agent may lodge under an applicable program, but eligibility and timing depend on the taxpayer's circumstances, prior compliance status and agent arrangements. Individuals should provide records early and confirm the actual due date with the agent. A tax agent's involvement also doesn't automatically change the payment date shown on an assessment.
Are BAS and PAYG withholding due on the same date?
They can be reported together through an activity statement, but the reporting cycle matters. Monthly activity statements are generally due on the 21st day of the following month, while quarterly obligations follow the quarterly cycle. PAYG withholding, GST and PAYG instalments should still be reconciled as separate balances before lodgement.
What should I do if a deadline may be missed?
Prepare the information accurately, lodge as soon as practicable where possible and contact the ATO about payment or other available arrangements. Don't use withheld PAYG or collected GST as general working capital. Review any penalty, interest or late-lodgement consequences with a registered tax or BAS agent.
Does superannuation belong on the BAS calendar?
It should have its own calendar, even where payroll information feeds into BAS reporting. The employer needs to calculate contributions, submit them through the chosen payment channel and retain evidence that the fund received them. A failed or rejected contribution needs prompt attention rather than being left as a completed payroll task.
Do SMSF returns use the same dates as individual returns?
Not necessarily. An SMSF is a separate taxpayer with an annual return, audit and trustee compliance responsibilities. Its date depends on the fund's circumstances and ATO instructions. Trustees should confirm the specific date with their SMSF accountant and arrange the audit early enough to resolve issues before lodgement.
Can ATO due dates change?
Yes. Dates may change because of weekends or public holidays, registered-agent programs, substituted accounting periods, entity classifications or prior-year compliance history. The ATO can also issue a date specific to the taxpayer. Check current official guidance and the taxpayer's ATO account before acting on a generic calendar.
The correct ATO due date depends on the taxpayer, entity, obligation and circumstances. Separate lodgement, payment and contribution dates, assign an owner, and check current official ATO guidance before acting.
If you would like clarity on how these principles may apply to your own circumstances, contact Everglow on 1300 913 929 or email contact@everglow.au.
To book directly: Book a meeting with Panbo.
Tags: ATO due dates, Australian tax calendar, BAS deadlines, PAYG withholding, superannuation compliance, SMSF accounting, GST reporting, Australian tax returns
