When is the deadline for notice period for requesting an extension of a filing deadline?
The catalogue records a 3 working-days period from Expiry of the filing deadline in question (count backwards). This draft page remains free only until its source, worked example and limits are reviewed.
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In preparation
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Calculation basis and source
- Period
- 3 working-days
- Trigger
- Expiry of the filing deadline in question (count backwards)
- Counting
- The encoded calculator method must be independently documented before publication.
- Rollovers and holidays
- Holiday, closure and order treatment must be independently documented before publication.
This route remains in preparation until a pinpoint official source is recorded.
- This is Registrar's guidance on how the Tribunal will exercise its existing discretion under rule 19(2)(m), not a rule. It does not create a jurisdictional bar. But the Guidance Note states that later requests "may not be approved without a compelling explanation", that documents filed late without good reason "may not be accepted", and that the Tribunal "will give consideration to the costs consequences of breaches of directions and late requests for extension of time".
- CURRENCY: issued 16 September 2025 and current as at the date of this catalogue. Genuinely diarisable: the practical effect is that every Tribunal-set filing deadline should carry a shadow reminder three working days earlier, being the last safe point to seek an extension. The Guidance Note also records that the Tribunal may require a senior member of the relevant legal team to