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Key Dates
The ATO dates that matter, straight from our compliance calendar. As your registered BAS agent we can often extend these.
August 2026
- 21 Aug — Monthly BAS due: lodge and pay July 2026 monthly activity statement
- 25 Aug — Quarterly BAS (Q4): registered BAS/tax agent electronic lodgement extension
- 28 Aug — TPAR due: Taxable Payments Annual Report for FY2025–26 (construction, cleaning, courier, IT, security)
September 2026
- 21 Sep — Monthly BAS due: lodge and pay August 2026 activity statement
- 30 Sep — STP finalisation: closely held payees (directors, family members) extended deadline
October 2026
- 21 Oct — Monthly BAS due: lodge and pay September 2026 activity statement
- 28 Oct — Quarterly BAS due (Q1: Jul–Sep 2026) for self-lodgers, plus PAYG instalment notice
- 31 Oct — Company, individual, trust & partnership tax returns due for FY2025–26 self-lodgers; also the deadline to engage a registered tax agent for extended lodgement to 15 May 2027
November 2026
- 21 Nov — Monthly BAS due: lodge and pay October 2026 activity statement
- 25 Nov — Quarterly BAS (Q1): registered agent electronic lodgement extension
December 2026
- 21 Dec — Monthly BAS due: lodge and pay November 2026 activity statement
- Note — ATO Christmas concession: December and January BAS are both due 21 February 2027
January 2027
- 15 Jan — Large/medium trust tax returns due (income over $10M, FY2026–27)
- Note — No standard monthly BAS: December and January BAS both due 21 February 2027
February 2027
- 21 Feb — Monthly BAS due: December 2026 AND January 2027 activity statements both due
- 28 Feb — Individual & trust tax returns (FY2026–27) where prior year liability was $20,000+; Quarterly BAS due (Q2) for self-lodgers
March 2027
- 21 Mar — Monthly BAS due: lodge and pay February 2027 activity statement
- 29 Mar — Quarterly BAS (Q2): registered agent electronic lodgement extension
- 31 Mar — End of Fringe Benefits Tax (FBT) year
April 2027
- 01 Apr — New FBT year begins (1 April 2027 – 31 March 2028)
- 21 Apr — Monthly BAS due: lodge and pay March 2027 activity statement
- 28 Apr — Quarterly BAS due (Q3: Jan–Mar 2027) for self-lodgers, plus PAYG instalment notice
May 2027
- 15 May — Tax returns FY2026–27 via registered tax agent (standard concession)
- 21 May — Monthly BAS due; FBT return and payment due (paper lodgement)
- 26 May — Quarterly BAS (Q3): registered agent electronic lodgement extension
June 2027
- 05 Jun — Concessional lodgement deadline for returns not required by 15 May
- 21 Jun — Monthly BAS due; recommended super processing cut-off so FY2027 contributions clear by 30 June
- 30 Jun — End of financial year: super must have cleared funds to be deductible; trust distribution resolutions signed; assets installed and ready for use for immediate deductions
July 2027
- 14 Jul — STP finalisation due for FY2026–27 (marks employee income statements "tax ready" in myGov)
- 21 Jul — Monthly BAS due: lodge and pay June 2027 activity statement
- 28 Jul — Quarterly BAS due (Q4) for self-lodgers; payroll tax annual reconciliation due in most states
- 30 Aug — TPAR due for FY2026–27 (construction, cleaning, courier, road freight, IT, security)
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