Legal Insights & Guides | Barrister Connect Blog

What Is Unfair Dismissal and What Are the Rules in the UK?

Written by Barrister Connect | Apr 17, 2026 4:31:00 PM

Unfair dismissal is one of the most common employment law claims brought to the employment tribunal in England and Wales. Understanding what makes a dismissal unfair, and what your employer is required to do before dismissing you, which is the first step in assessing whether you have a claim.

What Is Unfair Dismissal?

Unfair dismissal occurs when your employer dismisses you without a fair reason or without following a fair procedure. The law recognises five potentially fair reasons for dismissal: capability or qualifications, conduct, redundancy, the fact that continuing employment would breach a statutory restriction, or some other substantial reason. If your employer cannot establish one of these reasons, the dismissal is automatically unfair.

The Two-Year Qualifying Period

To bring an ordinary unfair dismissal claim, you generally need to have been continuously employed for at least two years. If you were dismissed within your first two years, you cannot bring an unfair dismissal claim unless the dismissal falls into a category that does not require a qualifying period. These include dismissals connected to whistleblowing, pregnancy or maternity, asserting a statutory right, or trade union activity.

What Is a Fair Procedure?

Even where an employer has a valid reason for dismissal, the dismissal can still be unfair if the procedure was not followed correctly. The employer must investigate the matter properly before making a decision, hold a disciplinary hearing at which the employee can put their case, allow the employee to be accompanied at the hearing, and give the employee the right to appeal the decision.

The ACAS Code of Practice on Disciplinary and Grievance Procedures sets the standard that employment tribunals apply. A failure to follow the Code can result in an uplift to any compensation awarded.

What Compensation Can You Receive?

Compensation for unfair dismissal consists of a basic award, calculated in the same way as a statutory redundancy payment based on age, length of service, and weekly pay, and a compensatory award covering actual financial loss. The compensatory award is capped at a statutory maximum, currently the lower of one year's gross pay or the prescribed limit.

What Is the Time Limit?

You have three months less one day from the date of dismissal to start ACAS early conciliation, which is a compulsory first step before bringing a tribunal claim. Missing this deadline means losing your right to claim entirely, regardless of the merits of your case.

Summary

Unfair dismissal occurs where the employer lacks a fair reason or fails to follow a fair procedure. A two-year qualifying period applies to most claims. Compensation includes a basic and compensatory award. The time limit is three months less one day from dismissal, after ACAS early conciliation.

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