The 21-day deadline for a general protections dismissal claim
The same 21 days, the same exceptional-circumstances standard, and a stated extension refusal rate of about 80%.
A general protections application involving dismissal carries its own 21-day deadline, running from the day the dismissal takes effect. The Fair Work Commission's guidance states it directly: "You must apply within 21 days of the dismissal taking effect," describing it as "a strict time limit under the law," and noting that "late applications are generally not accepted."
Extensions are possible, and mostly refused
An extension can be requested in exceptional circumstances, the same standard applied to unfair dismissal applications. The Commission's own figure for how often that succeeds: "You can request an extension of time in exceptional circumstances; however, most (about 80%) are denied." That figure is specific to general protections applications; this site has not sourced an equivalent published percentage for unfair dismissal extension requests.
One application, not two
The Commission's guidance is explicit that you cannot lodge a general protections application about a dismissal if you have already lodged an unfair dismissal application, or an anti-discrimination application, about the same dismissal. Deciding which claim fits is worth doing before you lodge, not after, given that the 21-day clock is running on both at once.
Why the same number of days can feel different here
General protections claims often turn on evidence of motive: why the employer actually dismissed you, not just whether the process around the dismissal was fair. Gathering that kind of evidence, such as records of a complaint you made or a workplace right you exercised shortly before the dismissal, can take longer to assemble than the process-focused evidence an unfair dismissal claim relies on. The 21 days does not extend to accommodate that, which is one reason to start straight after the dismissal rather than partway through the window.
What happens if this deadline is missed
The mechanics are the same as for unfair dismissal: the Commission may allow a late application only in exceptional circumstances, and its own figure for general protections extension requests specifically is that about 80% are denied. The what-happens-if-you-miss-the-deadline guide covers the exceptional circumstances test in more detail.