Resources
Tax calendar 2025-26
Every ATO deadline Melbourne businesses need to know. BAS, super guarantee, tax returns, TPAR, and FBT — with penalties for missing them.
July – September 2025
Monthly BAS (June)
21 July 2025Monthly BAS lodgement and payment for businesses with turnover above $20M or those who have elected monthly reporting.
Quarterly BAS (Q4 Apr–Jun)
28 July 2025Quarterly BAS lodgement and payment for the April to June quarter. Includes GST, PAYG withholding, and PAYG instalments.
Taxable Payment Annual Report (TPAR)
28 August 2025Annual report of payments made to contractors in building/construction, cleaning, courier, IT, and security industries.
Superannuation guarantee (Q4)
28 August 2025Super guarantee contributions for the April to June quarter must be received by employee funds. Rate: 12% from 1 July 2025.
October – December 2025
Monthly BAS (September)
21 October 2025Monthly BAS lodgement and payment for September.
Quarterly BAS (Q1 Jul–Sep)
28 October 2025Quarterly BAS lodgement and payment for the July to September quarter.
Superannuation guarantee (Q1)
28 October 2025Super guarantee contributions for the July to September quarter must be received by employee funds. Rate: 12%.
Individual tax returns (self-lodgers)
31 October 2025Due date for individuals lodging their own tax return without a registered tax agent. Tax agent clients receive extended deadlines.
January – March 2026
Superannuation guarantee (Q2)
28 January 2026Super guarantee contributions for the October to December quarter. Rate: 12%.
Quarterly BAS (Q2 Oct–Dec)
28 February 2026Quarterly BAS lodgement and payment for the October to December quarter.
Company, trust, and partnership tax returns
28 February 2026Due date for entities lodging without a tax agent. Tax agent clients receive extended deadlines to 15 May 2026.
FBT return lodgement
21 March 2026Fringe Benefits Tax return for the FBT year ending 31 March 2026. FBT rate: 47%.
April – June 2026
Quarterly BAS (Q3 Jan–Mar)
28 April 2026Quarterly BAS lodgement and payment for the January to March quarter.
Superannuation guarantee (Q3)
28 April 2026Super guarantee contributions for the January to March quarter. Rate: 12%.
Tax agent lodgement deadline
15 May 2026Extended lodgement deadline for individual, company, trust, and partnership tax returns lodged by a registered tax agent.
End of financial year
30 June 2026Last day of the 2025-26 financial year. Finalise deductible expenses, super contributions, and asset purchases before this date.
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