Free deadline calculator
Employment Tribunal deadline calculator
Employment Tribunal time limits, including the three month less one day rule, ACAS Early Conciliation stop-the-clock extensions and the ET3 response window. Month-based limits use the corresponding-date rule.
England & Wales ยท Deemed service, clear days and bank holidays applied ยท Methodology
Month-based limits use the corresponding-date rule (Pruden v Cunard Ellerman). ACAS Early Conciliation extends the limit under s.207B ERA 1996. From 1 December 2025, the EC period is capped at 12 weeks.
ERA 2025: limits will double from 3 to 6 months (commencement no earlier than October 2026). The qualifying period for unfair dismissal reduces from 2 years to 6 months from January 2027.
Deadlines this calculator covers
9 encoded deadlines, each cited to its rule.