Tribunal process
Submitting an ET1 claim
A practical guide to filing a tribunal claim once ACAS Early Conciliation ends.
Last updated 8 February 2026
Overview
An ET1 is the form used to start a claim in the Employment Tribunal.
You usually must complete ACAS Early Conciliation before you file.
Before you file
- Confirm your ACAS certificate number and dates.
- Check the limitation date to avoid an out of time claim.
- Identify the legal name of the employer or respondent.
- Decide which claims you are bringing and why.
What the form asks for
- 01
Parties
Your details and the correct legal name of the employer.
- 02
Employment facts
Dates, job title, pay, and when the issue happened.
- 03
Claim details
A clear summary of what happened in date order.
- 04
Remedy
What you want the tribunal to award or order.
Common mistakes
- Missing the deadline or guessing the dates.
- Naming the wrong legal entity as the respondent.
- Writing a long narrative without a clear timeline.
- Forgetting to include the ACAS certificate number.
Common questions
Are there tribunal fees?
No, there are currently no fees to submit an ET1.
Can I amend the ET1 later?
Yes, but you may need permission and it can cause delay.
Can I submit online?
Yes, most claims are filed through the tribunal online service.
Next steps
Keep your facts organised and protect your time limits with the tools below.
Start case check