What should I check before using a calculated date?

ACAS Early Conciliation can alter the ordinary ET1 calculation and needs its own dates. A late claim, reconsideration or appeal may use a different test or route.

Procedure finder

Employment Tribunal deadline calculators

Choose the Employment Tribunal step first. The calculator makes the triggering event explicit and shows the cited time limit, including the different treatment of ACAS Early Conciliation where relevant.

Choose a deadline checkRules reviewed 7 August 2026

Choose the procedure first

A cited route for the step in front of you

These are focused procedural checks, not a general legal guide. Open the named step to see its trigger, period, counting method and the boundary that still needs to be checked.

Deadline checks

Pick the exact event or document

A calculator opens with the matching rule or system selected. A cited source guide stays deliberately source-first when the current model cannot faithfully generate a date.

ET1 unfair dismissalCalculatorCalculate the usual three-months-less-one-day unfair dismissal ET1 limit, including an ACAS Early Conciliation extension.Three calendar months less one day · Employment Rights Act 1996, section 111 ET1 discrimination claimCalculatorCalculate the usual three-months-less-one-day Employment Tribunal discrimination claim limit, including an ACAS Early Conciliation extension.Three calendar months less one day · Equality Act 2010, section 123 ET1 unlawful deduction from wagesCalculatorCalculate the usual three-months-less-one-day Employment Tribunal limit for an unlawful deduction from wages, including ACAS Early Conciliation.Three calendar months less one day · Employment Rights Act 1996, section 23 ET3 responseCalculatorCalculate the 28-day Employment Tribunal response period from the date the Tribunal sent the ET1 claim form.28 days · Employment Tribunal Procedure Rules 2024, Schedule 1, rule 16 Employment interim reliefCalculatorCalculate the seven-day deadline for an employment interim relief application under section 128 of the Employment Rights Act 1996.Seven days · Employment Rights Act 1996, section 128 Whistleblowing detriment claimCalculatorCalculate the ordinary Employment Tribunal time limit for a whistleblowing detriment complaint, including the calculator’s ACAS Early Conciliation inputs.Three months beginning with the relevant act, failure or last similar act · Employment Rights Act 1996, section 48(3) and (4)EAT notice of appealSource guideCheck the Employment Appeal Tribunal 42-day notice-of-appeal route, the applicable trigger and the 4pm receipt requirement.42 days · Employment Appeal Tribunal Practice Direction 2024, paragraphs 3.3 to 3.5

Check before use

The procedure is not the whole matter

ACAS Early Conciliation can alter the ordinary ET1 calculation and needs its own dates.
A late claim, reconsideration or appeal may use a different test or route.

Continue checking

CPR civil procedureFind a cited CPR deadline calculator for claim service, acknowledgment, defence, Part 36, directions, costs and civil appeals.Immigration and asylumCheck cited Immigration and Asylum Chamber appeal timing and the related procedural routes before entering the triggering date.Popular England & Wales deadlinesStart with the most frequently checked cited procedural deadlines in England and Wales, from service and defence to tribunal and statutory routes.