• Quarter 4 (April–June) activity statements lodged electronically – final date for lodgment and payment    
  • refer to Lodging your activity statements online for information on your eligibility for this later due date
  • finalising all your PAYG instalments before you lodge your tax return will ensure you receive the correct amount of credit in your income tax assessment.

Lodge PAYG withholding payment summary annual report for:

• large withholders whose annual withholding is greater than $1 million
• payers who have no tax agent or BAS agent involved in preparing the report.

Lodge and pay July 2026 monthly business activity statement.

Lodge and pay quarter 4, 2025–26 activity statement if you lodge electronically.

Lodge Taxable payments annual report (TPAR).

Note: The TPAR tells us about payments that are made to contractors for providing services. Some government entities also need to report the grants they have paid in a TPAR.

Lodge and pay quarter 4, 2025–26 Superannuation guarantee charge statement – quarterly form if the employer did not pay contributions on time and in full for this quarter.

Note: Employers who lodge a Superannuation guarantee charge statement – quarterly form can’t offset contributions they paid late to a fund against their super guarantee charge for the quarter. They have to pay the full super guarantee charge.

Lodge and pay August 2026 monthly business activity statement.

Lodge Annual TFN withholding report 2026 if a trustee of a closely held trust has been required to withhold amounts from payments to beneficiaries.

Pay annual PAYG instalment notice (Form N). Lodge only if you vary the instalment amount or use the rate method to calculate the instalment.

Lodge and pay quarter 1, 2026–27 PAYG instalment activity statement for head companies of consolidated groups.

Lodge and pay September 2026 monthly business activity statement.

Lodge and pay quarter 1, 2026–27 activity statement, if lodging by paper.

Pay quarter 1, 2026–27 instalment notice (Form R, S, or T). Lodge the notice only if you vary the instalment amount.

Lodge and pay annual activity statement for TFN withholding for closely held trusts where a trustee withheld amounts from payments to beneficiaries during the 2025–26 income year.

Final date to add new clients to your client list to ensure their 2026 tax return is covered by the lodgment program.

Note: The lodgment program is a concession to registered agents. We can ask for documents to be lodged earlier than the lodgment program due dates.

Lodge tax returns for all entities if one or more prior year returns were outstanding as at 30 June 2026.

Notes:

• This means all prior year returns must be lodged, not just the immediate prior year.
• If all outstanding prior year returns have been lodged by 31 October 2026, the lodgment program due dates will apply to the 2026 tax return.
• SMSFs in this category must lodge their complete Self-managed superannuation fund annual return by this date.

Lodge tax return for all entities prosecuted for non-lodgment of prior year returns and advised of a lodgment due date of 31 October 2026.

Notes:

• Some prosecuted clients may have a different lodgment due date. Refer to the letter you received for the applicable due date.
• Payment (if required) for individuals and trusts in this category is due as advised in their notice of assessment.
• Payment (if required) for companies and super funds in this category is due on 1 December 2026.
• SMSFs in this category must lodge their complete Self-managed superannuation fund annual return by this date.

Lodge Departing Australia superannuation payments (DASP) annual report.

Lodge Franking account tax return when both the:

• return is a disclosure only (no amount payable)
• taxpayer is a 30 June balancer.

Lodge PAYG withholding from interest, dividend and royalty payments paid to non-residents – annual report (NAT 7187). This report advises amounts withheld from payments to foreign residents for:

• interest and unfranked dividend payments that are not reported on an Annual investment income report (AIIR)
• royalty payments.

Lodge PAYG withholding annual report – payments to foreign residents (NAT 12413). This report advises amounts withheld from payments to foreign residents for:   

• entertainment and sports activities
• construction and related activities
• arranging casino gaming junket activities.

Lodge lost members report for the period 1 January – 30 June 2026.

Lodge TFN report for closely held trusts for TFNs quoted to a trustee by beneficiaries in quarter 1, 2026–27.

Lodge not-for-profit (NFP) self-review return for non-charitable NFP entities with an active Australian business number (ABN) that self-assess as income tax exempt.

Lodge and pay October 2026 monthly business activity statement.

Lodge and pay quarter 1, 2026–27 activity statement if you lodge electronically.

Pay income tax for taxable large and medium taxpayers, companies and super funds. Lodgment of return is due 31 January 2027.

Pay income tax for the taxable head company of a consolidated group with a member deemed to be a large or medium taxpayer in the latest year lodged. Lodgment of return is due 31 January 2027.

Pay income tax for companies and super funds when lodgment of the tax return was due 31 October 2026.

Lodge and pay November 2026 monthly business activity statement.

Lodge and pay quarter 2, 2026–27 PAYG instalment activity statement for head companies of consolidated groups.

Lodge and pay December 2026 monthly business activity statement except for business clients with up to $10 million turnover who report GST monthly and lodge electronically.

Lodge TFN report for closely held trusts if any beneficiary quoted their TFN to a trustee in quarter 2, 2026–27.

Lodge tax return for taxable large and medium entities as per the latest year lodged (all entities other than individuals), unless required earlier.

Payment for large and medium entities with a 31 January due date is:

• 1 December 2026 for companies and super funds
• as stated on their notice of assessment for trusts.

Note: You can’t assume a later date for lodgment on the basis that the taxpayer will be non-taxable in the current year. If you request a lodgment deferral, it will be escalated for manual assessment as an ATO assessed deferral.

Lodge tax return for the taxable head company of a consolidated group (including a new registrant) that has a member who has been deemed a large or medium entity in the latest year lodged, unless the return was required earlier. Payment was due 1 December 2026.