What is the deadline for et3 response?
An ET3 response must normally be presented within 28 days of the date the Tribunal sent the respondent a copy of the ET1 claim form. Enter the date shown on the Tribunal correspondence.
Calculate your deadline
Loading calculator...
Worked example
- Example input
- 03/08/2026
- Expected result
- Tuesday 1 September 2026
The Tribunal sent the ET1 claim form on Monday 3 August 2026.
The 28-day period nominally ends on the 31 August bank holiday. The calculator moves the endpoint to the next working day.
How this deadline is counted
- Period
- 28 days
- Trigger
- Date the Tribunal sent the ET1 claim form
- Direction
- Forward from the date sent by the Tribunal
- Counting method
- 28 calendar days in the Employment Tribunal calculator
If the calculated end date is not a working day, the calculator applies its encoded next-working-day adjustment.
Employment Tribunal Procedure Rules 2024, Schedule 1. Employment Tribunal Procedure Rules 2024, Schedule 1, rule 16. Employment Tribunal Procedure Rules 2024 and cited statute checked 06/08/2026
Exceptions and matter facts
- Use the Tribunal correspondence date, not the date the response papers were opened.
- An application for an extension and the consequences of a late response must be checked under the current Rules.
Deadline Engine is calculation software, not legal advice. Check the current rule, any order and the facts before adding a date to your diary.