Key EOFY Dates & Deadlines to Watch for
As the End of Financial Year (EOFY) approaches, it’s crucial for both businesses and individuals to keep track of important dates to meet tax obligations, avoid penalties, and make the most of financial planning opportunities. Staying on top of deadlines isn’t just vital for the current financial year — it’s equally important to prepare for the upcoming one.
At Zweck, we’ve compiled a list of essential EOFY dates and key deadlines for this financial year and the next (1 July 2025 – 30 June 2026) to help you plan ahead confidently.
Key Dates for the 2025–26 Financial Year
July 2025:
- 14 July – Due date for Final Single Touch Payroll (STP) declaration due.
- 28 July – Superannuation Guarantee contributions (SGC) for the quarter ending 30 June 2025 must be paid to avoid penalties.
August 2025:
- 1 August – Can start lodging QBCC Financial Reporting.
- 21 August – Monthly July IAS (PAYG Withholding & PAYG Instalments) return due.
- 25 August – Quarterly June BAS Return due.
- 28 August – Taxable Payments Annual Report (TPAR) due.
September 2025:
- 21 September – Monthly August IAS (PAYG Withholding & PAYG Instalments) return due.
October 2025:
- 28 October – Super Guarantee contributions due for the quarter ending 30 September 2025.
- 28 October – Annual BAS lodgment due.
- 31 October – Deadline for annual individual income tax return lodgment & deadline for taxpayers who lodged late in the previous year without a lodgement concession or if they are a first-year lodger & for QBCC licensee’s you must lodge MFR reports for licence upgrades.
November 2025:
- 1 November – Can start lodging QBCC Financial Reporting.
- 21 November – Monthly October IAS (PAYG Withholding & PAYG Instalments) return due.
- 25 November – Quarterly September BAS return due.
December 2025:
- 21 December – Monthly November IAS (PAYG Withholding & PAYG Instalments) return due.
- 31 December – QBCC Financial Reporting due: Categories 1-7 (turnover >$800k).
January 2026:
- 28 January – Super Guarantee contributions due for the quarter ending 31 December 2025.
February 2026:
- 21 February – Monthly January IAS (PAYG Withholding & PAYG Instalments) return due.
- 28 February – Quarterly December BAS due.
March 2026:
- 21 March – Monthly February IAS (PAYG Withholding & PAYG Instalments) return due.
- 31 March – QBCC Financial Reporting: SC1 & SC2 Categories (Turnover <$800k) due.
April 2026:
- 28 April – Super Guarantee contributions for the quarter ending 31 March 2026.
May 2026:
- 15 May – Company income tax returns to be lodged.
- 20 May – Tax Planning (if required).
- 21 May – Monthly April IAS (PAYG Withholding & PAYG Instalments) return due.
- 25 May – Quarterly March BAS return due.
June 2026:
- 21 June – Monthly May IAS (PAYG Withholding & PAYG Instalments) return due.
- 30 June – Trust Resolution due & date marks the end of the 2025–26 financial year.
July 2026:
- 1 July – This date marks the commencement of the 2026–27 financial year.
- 14 July – STP Payroll.
- 28 July – Super Guarantee contributions due.
Why These Dates Matter
Missing deadlines can lead to penalties, interest, and missed opportunities for tax optimisation. Staying ahead allows better cash flow management and reduces last-minute pressures.
How Zweck Can Help
Our expert team works closely with you to ensure all your financial obligations are met on time. From lodgement reminders and payroll compliance to strategic tax planning, we guide you through each step of the financial year.
Contact us today to discuss how we can help you stay ahead with your EOFY and ongoing compliance requirements.