Whistleblowing

FORTHCOMING CHANGES: In measures expected to come into force on 1 October 2026, time limits for making certain claims in employment tribunals in Great Britain (and, in certain cases, industrial tribunals in Northern Ireland) will be increased from three months to six months. The changes are set out in section 152 of the Employment Rights Act 2025 (ERA 2025) and ERA 2025, Schedule 12 (not yet in force), and in The Employment Tribunals Extension of Jurisdiction (England and Wales) (Amendment) Order 2026 (draft), The Employment Tribunal (Extension of Time Limits) (Miscellaneous Amendments and Transitional Provisions) Regulations 2026 (draft) and The Employee Study and Training (Procedural Requirements) (Amendment) Regulations 2026, SI 2026/473. This Overview will be updated as soon as the relevant statutory instruments are made. For more information, see Practice Note: Employment Rights Act 2025—tracker.

This Overview outlines the protection in respect of whistleblowing given to workers under the Employment Rights Act 1996 (ERA 1996), as inserted by the Public Interest Disclosure Act 1998 (PIDA 1998). It considers what amounts to a protected disclosure, types of whistleblowing claims,