Labour Day (or its equivalent) does not fall on a single national date in Australia. The observance varies by state and territory, and each jurisdiction sets its own date by legislation or proclamation. There is no one correct answer that applies nationwide.

The 2026 dates by jurisdiction are:

- **ACT, NSW, SA** - Labour Day / Eight Hours Day falls in early to mid-October. In 2026 that is **Monday 5 October 2026**.
- **Victoria** - Labour Day falls on the second Monday of March. In 2026 that is **Monday 9 March 2026**.
- **Queensland** - Labour Day falls on the first Monday of May. In 2026 that is **Monday 4 May 2026**.
- **Western Australia** - Labour Day falls on the first Monday of March. In 2026 that is **Monday 2 March 2026**.
- **Tasmania** - Eight Hours Day falls on the second Monday of March, the same day as Victoria. In 2026 that is **Monday 9 March 2026**.
- **Northern Territory** - May Day falls on the first Monday of May (same as Queensland). In 2026 that is **Monday 4 May 2026**.

So a payroll officer cannot state a single date that covers all employees. The correct date depends entirely on the state or territory where the employee is based. Applying one date nationally would result in incorrect leave entitlements for employees in several jurisdictions.