28 July
ATO Lodgements Calendar
July 2026
August 2026
21 August
Monthly BAS/IAS: Lodgement and Payment is due to ATO
26 August
June Quarterly BAS: Lodgement and Payment is due to the ATO
**Lodgement extension only applies if a registered BAS/Tax Agent is lodging the BAS
28 August
Taxable Payments Annual Report (TPAR) due for lodgement with ATO
September 2026
21 September
Monthly BAS/IAS: Lodgement and Payment is due to ATO
October 2026
21 October
Monthly BAS/IAS: Lodgement and Payment is due to ATO
21 October
Individual PAYG Instalments: Lodgement and Payment is due to ATO
28 October
(Self Lodge) Quarterly BAS: Lodgement and Payment is due to the ATO
November 2026
21 November
Monthly BAS/IAS: Lodgement and Payment is due to ATO
25 November
September Quarterly BAS: Lodgement and Payment is due to the ATO
**Lodgement extension only applies if a registered BAS/Tax Agent is lodging the BAS
December 2026
21 December
Monthly BAS/IAS: Lodgement and Payment is due to ATO
January 2027
21 January
Monthly BAS/IAS: Lodgement and Payment is due to ATO
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