21 February
ATO Lodgements Calendar
February 2026
28 February
December Quarterly BAS: Lodgement and Payment is due to the ATO
**Lodgement extension only applies if a registered BAS/Tax Agent is lodging the BAS
March 2026
21 March
Monthly BAS/IAS: Lodgement and Payment is due to ATO
April 2026
21 April
Monthly BAS/IAS: Lodgement and Payment is due to ATO
21 April
Individual PAYG Instalments: Lodgement and Payment is due to ATO
28 April
(Self Lodge) Quarterly BAS: Lodgement and Payment is due to the ATO
May 2026
21 May
Monthly BAS/IAS: Lodgement and Payment is due to ATO
26 May
March Quarterly BAS: Lodgement and Payment is due to the ATO
**Lodgement extension only applies if a registered BAS/Tax Agent is lodging the BAS
June 2026
21 June
Monthly BAS/IAS: Lodgement and Payment is due to ATO
July 2026
15 July
Single Touch Payroll (STP) Finalisation due to ATO
21 July
Monthly BAS/IAS: Lodgement and Payment is due to ATO
21 July
Individual PAYG Instalments: Lodgement and Payment is due to ATO
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