Australian Financial Year 2026 Tax Due Dates Guide

If you are in Self-employed, here is a reminder of key remaining Australian financial year returns due dates, for the rest of this current financial year. Always check in on this information with your accountant or bookkeeper to ensure lodge on time.

Australia FY2025–26 Lodgement Reminder dates

April 2026

  • 21 Apr – March monthly BAS due
  • 28 Apr
    • Q3 BAS (Jan–Mar 2026)
    • Q3 Superannuation Guarantee due

May 2026

  • 15 MayIndividual tax returns due via tax agent
  • 21 MayFBT return due (paper)
  • 21 May – April monthly BAS due

June 2026

  • 21 Jun – May monthly BAS due
  • 30 JunEnd of Financial Year (FY26)

Key Deadlines Summary

Quarterly BAS

  • 28 Apr 2026
  • 28 Jul 2026

Superannuation Guarantee

  • 28 Apr 2026
  • 28 Jul 2026

Individual Tax Returns

  • 15 May 2026 (tax agent)

FBT

  • 31 Mar 2026 (year end)
  • 21 May 2026 (return)