Time Limit for Employment Tribunal Claims

Employment Tribunal claims in England and Wales are subject to strict statutory time limits. These limitation periods determine whether a claim can be accepted and heard. They apply to a wide range of workplace disputes, including unfair dismissal, discrimination, wage disputes, redundancy payments, whistleblowing detriment, and breach of contract claims.

The time limit rules are governed primarily by the Employment Tribunals Act 1996, the Equality Act 2010, and associated procedural rules. In most cases, missing the deadline will prevent a claim from proceeding unless a tribunal exercises discretion to extend time, which is limited and applied narrowly.

Standard Time Limit for Employment Tribunal Claims

The general rule

Most Employment Tribunal claims must be presented within:

3 months minus 1 day

This applies to claims such as:

• Unfair dismissal
• Discrimination under the Equality Act 2010
• Unlawful deductions from wages
• Whistleblowing detriment
• Breach of contract claims (in limited tribunal jurisdiction cases)

This time limit is widely confirmed in official guidance and tribunal practice.

Claims With a 6-Month Time Limit

Certain claims have a longer limitation period of:

6 months minus 1 day

These include:

• Statutory redundancy pay claims
• Equal pay claims
• Certain trade union-related claims
• Some armed forces-related employment claims

The longer period reflects the different legal structure of these entitlements.

When the Time Limit Starts

The start date depends on the type of claim.

1. Unfair dismissal

The limitation period begins on the effective date of termination (EDT), usually:

• The last day of employment
• Or the date dismissal takes effect (for summary dismissal)

2. Discrimination claims

Time normally runs from:

• The date of the discriminatory act, or
• The last act in a continuing course of conduct (where applicable)

3. Pay and deductions claims

Time generally runs from:

• The date the deduction occurred, or
• The last in a series of deductions

4. Ongoing or continuing acts

Where conduct continues over time (for example harassment or repeated failure to make adjustments), tribunals may treat it as a continuing act, meaning time runs from the final incident in the series.

ACAS Early Conciliation and Time Limits

Before lodging most Tribunal claims, a claimant must notify ACAS and engage in Early Conciliation.

Effect on time limits

Early Conciliation has a direct impact on limitation periods:

• The limitation clock pauses when ACAS is notified (provided it is notified in time)
• The pause continues until ACAS issues an Early Conciliation Certificate
• After the certificate is issued, the clock resumes

In addition:

• Claimants usually have at least 1 month from the certificate date to submit the ET1 claim form if time would otherwise have expired earlier

This mechanism often extends the effective deadline but does not restart it.

ACAS guidance confirms that time limits are paused during Early Conciliation and resume afterwards.

Interaction With Internal Workplace Procedures

Internal processes such as:

• Grievances
• Disciplinary hearings
• Appeals
• HR investigations

do not extend or pause Tribunal time limits.

This is a frequent source of missed deadlines. A claimant must still preserve their limitation position while internal procedures continue.

Calculating the Deadline

A basic calculation typically involves:

1. Identifying the date of the act or termination
2. Adding 3 months
3. Subtracting 1 day
4. Adjusting for any ACAS Early Conciliation pause
5. Ensuring the ET1 is submitted within the remaining or extended period

Where multiple incidents exist, identifying the correct “start date” is often the most disputed issue.

Extension of Time (Out-of-Time Claims)

If a claim is submitted after the deadline, it may still proceed in limited circumstances.

Discrimination claims

The tribunal may extend time where it considers it “just and equitable” to do so.

Factors may include:

• Length of delay
• Reason for delay
• Knowledge of rights
• Impact on evidence
• Prejudice to both parties

Other claims

Some claims allow extension only where:

• It was not reasonably practicable to present the claim in time

or

• Specific statutory exceptions apply

Extensions are not routine and are applied strictly.

Common Issues in Tribunal Time Limits

1. Misidentifying the start date

Especially in discrimination or wage claims involving multiple incidents.

2. Continuing act confusion

Not all repeated conduct qualifies as a continuing act.

3. Late ACAS notification

If ACAS is notified after expiry, the claim is usually already out of time.

4. Misunderstanding the “one-month rule”

The post-ACAS extension is not a full restart of the limitation period.

5. Internal processes causing delay

Grievances or appeals do not affect limitation deadlines.

Key Types of Employment Tribunal Claims and Typical Limits

Claim Type	Time Limit
Unfair dismissal	3 months minus 1 day
Discrimination	3 months minus 1 day
Unlawful deduction of wages	3 months minus 1 day
Whistleblowing detriment	3 months minus 1 day
Redundancy payment	6 months minus 1 day
Equal pay	6 months minus 1 day

Practical Risks of Missing the Deadline

If the limitation period expires:

• The claim may be rejected regardless of merit
• Evidence may become less effective or irrelevant
• Settlement leverage is significantly reduced
• Respondents can rely on limitation as a complete defence

Tribunals generally enforce these limits strictly.

Key Takeaways

Employment Tribunal claims are subject to strict statutory limitation periods. Most claims must be brought within 3 months minus 1 day, with certain claims allowing 6 months minus 1 day. The time limit normally starts from the act complained of or termination date. ACAS Early Conciliation pauses the limitation clock but does not restart it, and internal workplace procedures do not extend deadlines. Limited discretion exists for out-of-time claims, particularly in discrimination cases, but strict compliance is essential to preserve the right to bring a claim.