The Australian Taxation Office has announced the following key dates to look out for in June 2026.

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5 June

• Lodge tax returns due for individuals and trusts with a lodgment due date of 15 May 2026 provided they also pay any liability due by this date.
• Lodge tax return for companies and super funds with a lodgment due date of 15 May 2026 provided both the prior year and current year return will be non-taxable or result in a refund.
  • Note: Please check with your DFKBKM representative if you have received a further extension.

21 June

• Lodge and pay May 2026 monthly business activity statement.

25 June

• Lodge and pay 2026 Fringe benefits tax annual return for tax agents if lodging electronically.

30 June

• Super guarantee contributions must be paid by this date to qualify for a tax deduction in the 2025–26 financial year.
• If any of your clients receive Child Care Subsidy and Family Tax Benefit payments from Services Australia, the client and their partner must lodge their 2024–25 tax return by 30 June 2026, regardless of any deferrals in place. For more information, see the Services Australia website.