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Guidance

Making a claim to an employment tribunal (T420)

How to make a claim to an employment tribunal.

Updates to this page

From:
HM Courts & Tribunals Service
Published:
1 April 2018
Last updated:
1 October 2026
Show all updates

  1. Updated the timeframe for when the tribunal must reason an application by.

  2. Changed Wales phone number.

  3. Changed Bristol ET office number and London Central address.

  4. Changed Watford office phone number.

  5. Changed London East phone number.

  6. Changed London South phone number.

  7. Changed Manchester phone number.

  8. Changed Manchester phone number.

  9. Acas settlement window changed to 12 weeks.

  10. Changed London Central office phone number

  11. Changed phone number for Leeds and Newcastle

  12. New Midlands phone number

  13. Changed signposting for tribunal offices.

  14. Changed postal address to Loughborough

  15. Added Welsh HTML version.

  16. Converted the English guide into HTML.

  17. Leeds tribunal address change

  18. Updated contact information

  19. Revised guidance document in English and Welsh.

  20. Details for Glasgow ET updated.

  21. Revised T420 guidance, English and Welsh.

  22. Glasgow centre has changed address.

  23. Time limit guidance has been updated.

  24. Revised T420 due to a change of address in Newcastle.

  25. Added Welsh T420 due to change of address for Employment Appeal Tribunal.

  26. Added a revised T420 that includes GDPR information.

  27. First published.

Documents

Making a claim to an employment tribunal (T420)

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Details

This guide sets out details about the process.

Read more about making a claim.

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