Mental Health Act 2025

Lords bill Government Bill 2025-26 Act of Parliament

Passed โ€” Royal Assent 18 December 2025
Sponsor
Baroness Merron (Labour)
+ 1 co-sponsor
  • Wes Streeting (Labour)
Introduced
6 November 2024
Royal Assent
18 December 2025
About this bill

A Bill to make provision to amend the Mental Health Act 1983 in relation to mentally disordered persons; and for connected purposes.

Parliamentary stages

Stages shown in blue link to the debate transcript. Not sure what these stages mean? How Parliament makes laws โ†’

Lords
โœ“ First reading 6 Nov 2024
โœ“ Second reading 25 Nov 2024โ†—
โœ“ Committee stage 14 Jan 2025โ†—
โœ“ Report stage 31 Mar 2025โ†—
โœ“ Third reading 23 Apr 2025โ†—
Commons
โœ“ First reading 24 Apr 2025
โœ“ Second reading 19 May 2025
โœ“ Programme motion 19 May 2025
โœ“ Money resolution 19 May 2025
โœ“ Committee stage 10 Jun 2025
โœ“ Report stage 14 Oct 2025
โœ“ Third reading 14 Oct 2025
โœ“ Programme motion 8 Dec 2025
โœ“ Consideration Of Lords Message 8 Dec 2025
Final stages
โœ“ Royal Assent 18 Dec 2025

Some stage debates occurred before our Hansard archive begins (May 2025). Links marked โ†— go to Parliament's own Hansard for that date.

Parliamentary information from bills.parliament.uk โ†—, licensed under the Open Parliament Licence v3.0. Explanatory Notes extracts are verbatim from Parliament's published documents.

What this bill is about

From the Explanatory Notes (October 2025):

These Explanatory Notes relate to the Commons Amendments to the Mental Health Bill [HL] as brought from the House of Commons on 15 October 2025 (HL Bill 137). ยท These Explanatory Notes have been prepared by the Department of Health and Social Care in order to assist the reader of the Bill. They do not form part of the Bill and have not been endorsed by Parliament. ยท These Explanatory Notes, like the Commons amendments themselves refer to Bill 225, the Bill as first printed for the Commons. ยท These Explanatory Notes are best read in conjunction with the Commons amendments and text of the Bilโ€ฆ
Read the full Explanatory Notes โ†—