Harassment Claim Time Limit in the Employment Tribunal

Harassment claims in the Employment Tribunal are subject to strict time limits. These limits determine how long an individual has to bring a claim after the alleged harassment occurs. Missing the deadline can result in a claim being rejected unless the tribunal decides to extend time in limited circumstances.

Most harassment claims in England and Wales arise under the Equality Act 2010, where harassment is treated as a form of unlawful discrimination. The time limit rules are therefore closely linked to discrimination claims more generally.

Legal Basis for Harassment Claims

Harassment claims in the employment context are usually brought under the Equality Act 2010. Harassment is defined as unwanted conduct related to a protected characteristic that has the purpose or effect of violating dignity or creating an intimidating, hostile, degrading, humiliating or offensive environment.

Protected characteristics include:

• Sex
• Race
• Disability
• Age
• Religion or belief
• Sexual orientation
• Gender reassignment

Claims are heard in the Employment Tribunal, which is a judicial body dealing with employment disputes.

Standard Time Limit for Harassment Claims

The 3-Month Minus 1 Day Rule

The general time limit for bringing a harassment claim is:

• 3 months minus 1 day from the date of the harassment incident, or
• 3 months minus 1 day from the last act in a continuing series of harassment

This applies to discrimination-based harassment claims under the Equality Act 2010.

This approach is strictly applied in most cases, although tribunals have discretion to extend time where it is just and equitable to do so.

Starting Point of the Time Limit

The time limit usually begins on:

• The date of the specific act of harassment, or
• The date of dismissal if harassment is linked to termination, or
• The date of the last incident in a series of connected events

Where harassment occurs repeatedly, tribunals may treat it as a continuing act, meaning time runs from the final incident rather than each individual event.

ACAS Early Conciliation and Time Limit Pauses

Before issuing a tribunal claim, most claimants must notify ACAS under the Early Conciliation procedure.

This process affects time limits in an important way:

• The limitation period is paused when ACAS is notified
• Time stops running during Early Conciliation
• Time resumes when ACAS issues an Early Conciliation certificate
• Claimants then receive a short additional period to submit their claim

In practice:

• A claimant usually has at least 1 month from the certificate date to present a claim (if time was still running when ACAS was notified)

This system is governed by statutory provisions linked to the Employment Tribunals Act 1996 and ACAS procedures.

Important Practical Deadlines

1. Notifying ACAS

To preserve a claim, ACAS must normally be notified before the original 3-month limitation period expires.

If notification happens after the deadline, the claim may already be out of time.

2. Submitting the ET1 Claim Form

After Early Conciliation ends:

• The claimant must submit an ET1 form to the Employment Tribunal
• The claim must still be within the adjusted limitation period
• Delay after receiving the ACAS certificate can result in the claim being time-barred

Continuing Acts of Harassment

Harassment often occurs over a period of time rather than as a single event.

Where conduct is ongoing, the tribunal may treat it as a continuing act, meaning:

• The time limit runs from the last incident in the series
• Earlier incidents may still be included in the claim
• The full pattern of behaviour can be considered together

However, this is fact-specific. Tribunals will examine whether the incidents are sufficiently linked.

Extension of Time: “Just and Equitable” Test

Even if a claim is late, the tribunal has discretion to allow it to proceed if it is “just and equitable” to do so.

Factors that may be considered include:

• Reasons for delay
• Length of delay
• Prejudice to both parties
• Whether the claimant acted promptly once aware of rights
• Availability of evidence

This discretion is applied strictly and is not guaranteed. Tribunals often emphasise that time limits are there to ensure fairness and legal certainty.

Common Issues Affecting Time Limits

Internal Grievances

Raising a grievance with an employer does not extend the tribunal time limit. The deadline continues to run regardless of internal procedures.

ACAS Delays

Delays in Early Conciliation do not usually invalidate a claim if ACAS was notified in time. However, claimants must still ensure the ET1 is filed within the permitted window after the certificate is issued.

Multiple Respondents

Adding new respondents later can complicate limitation issues. Each claim is assessed individually for time compliance.

Consequences of Missing the Time Limit

If a harassment claim is out of time:

• The tribunal may reject the claim automatically
• The respondent can apply to strike it out
• The claimant must rely on the “just and equitable” discretion
• Compensation and liability will not be considered unless the claim proceeds

Strict enforcement of deadlines is common in Employment Tribunal cases.

Practical Summary

• Harassment claims usually must be brought within 3 months minus 1 day
• The time limit runs from the act or last act in a continuing series
• ACAS Early Conciliation pauses the limitation period
• Internal complaints do not stop time running
• Late claims are only allowed in limited circumstances
• Tribunals may extend time only if it is just and equitable

Final Thoughts

Time limits in harassment claims are one of the most critical procedural requirements in Employment Tribunal proceedings. While the law provides some flexibility through continuing act principles and discretionary extensions, the standard approach is strict enforcement of the three-month limitation period. Early action, timely ACAS notification, and careful tracking of deadlines are essential to preserve the ability to bring a claim.