Making a claim to an employment tribunal (T420)
How to make a claim to an employment tribunal.
Documents
Details
This guide sets out details about the process.
Updates to this page
-
Changed London Central office phone number
-
Changed phone number for Leeds and Newcastle
-
New Midlands phone number
-
Changed signposting for tribunal offices.
-
Changed postal address to Loughborough
-
Added Welsh HTML version.
-
Converted the English guide into HTML.
-
Leeds tribunal address change
-
Updated contact information
-
Revised guidance document in English and Welsh.
-
Details for Glasgow ET updated.
-
Revised T420 guidance, English and Welsh.
-
Glasgow centre has changed address.
-
Time limit guidance has been updated.
-
Revised T420 due to a change of address in Newcastle.
-
Added Welsh T420 due to change of address for Employment Appeal Tribunal.
-
Added a revised T420 that includes GDPR information.
-
First published.
Update history
2025-12-01 07:55
Acas settlement window changed to 12 weeks.
2025-11-03 08:00
Changed London Central office phone number
2025-10-13 08:00
Changed phone number for Leeds and Newcastle
2025-09-01 08:00
New Midlands phone number
2025-06-25 15:26
Changed signposting for tribunal offices.
2025-05-16 10:17
Changed postal address to Loughborough
2025-05-09 07:51
Added Welsh HTML version.
2024-02-05 09:00
Converted the English guide into HTML.
2023-12-12 12:12
Leeds tribunal address change
2023-10-12 17:04
Updated contact information