At a glanceJohn McDonnell is a Labour MP for Hayes and Harlington, and has represented the seat for 29 years, 2 months. They have cast 493 votes in Commons divisions (86% attendance), tabled 1,018 written questions and registered 4 financial interests.
Attendance is votes cast as a share of the 575 Commons divisions since the 2024 election; John McDonnell did not vote in 82. A rebellion is a vote against the way most of their own party voted; free votes, where no party line applies, are left out.
Party-loyalty figures are our own analysis of the official voting records (recorded votes only; they do not describe the formal whip). How we work this out.
Biography
Current roles
- Labour Party since 26 Sep 2025
- Hayes and Harlington Representation · Elected 1 time since 4 Jul 2024
Voting record
Voting alignment
Votes most like
-
Imran Hussain
Labour
98.4% · 358 of 364 shared votes
-
Nadia Whittome
Labour
97.9% · 275 of 281 shared votes
-
Ms Stella Creasy
Labour (Co-op)
97.8% · 403 of 412 shared votes
-
Ian Byrne
Labour
97.4% · 372 of 382 shared votes
-
Cat Eccles
Labour
97.1% · 271 of 279 shared votes
Votes least like
-
Lincoln Jopp
Conservative
2.7% · 8 of 301 shared votes
-
Shivani Raja
Conservative
3.2% · 10 of 313 shared votes
-
Sir Jeremy Wright
Conservative
3.3% · 8 of 239 shared votes
-
Sir Edward Leigh
Conservative
3.4% · 11 of 319 shared votes
-
Wendy Morton
Conservative
3.4% · 10 of 290 shared votes
Alignment figures are our own analysis of the official voting records (recorded votes only; they do not describe the formal whip). How we work this out.
Register of financial interests
From the official Register; shown as registered.
Donations and other support (including loans) for activities as an MP4
- Rail, Maritime and Transport Union - £25,091.00 (registered 29 Oct 2025)
- Public and Commercial Services Union (PCS) - £36,077.00 (registered 29 Oct 2025)
- Public and Commercial Services Union (PCS) - £34,358.00 (registered 20 Nov 2024)
- Rail, Maritime and Transport Union - £22,211.00 (registered 20 Nov 2024)
Written questions
Revenue and Customs: Staff
To ask the Chancellor of the Exchequer, with reference to the speech by the Exchequer Secretary to the Treasury to the Institute for Government on 29 June 2026, whether Ministers make operational decisions regarding the deployment of Officers of Revenue &
Awaiting an answer from the Treasury.
Tonnage Tax
To ask the Chancellor of the Exchequer, what her estimate is of Corporation Tax relief for qualifying shipping company groups in the Tonnage Tax in 2026-27.
Answer · 15 Jul 2026
The latest available estimate of Corporation Tax relief for qualifying shipping company groups in the Tonnage Tax is for 2025-26 which is £145m. This is published in the tax relief statistics on the following link: https://assets.publishing.service.gov.uk...
Railways: Defibrillators
To ask the Secretary of State for Transport, which train companies install defibrillators on trains for i) DFT Operator Ltd managed Train Operating Companies (TOCs), and ii) DFT franchised TOCs.
Answer · 8 Jul 2026
Decisions on whether to install defibrillators are a matter for individual Train Operating Companies, taking in to account their unique operational circumstances and wider safety arrangements. The Department does not hold information on which Train Operat...
Revenue and Customs: Artificial Intelligence
To ask the Chancellor of the Exchequer, whether HMRC maintains a (a) public register and (b) internal inventory of automated decision-making systems.
Answer · 10 Jul 2026
HMRC maintains records relating to all automated decision-making identified through its governance and Data Protection Impact Assessment (DPIA) processes. HMRC does not maintain a public register dedicated specifically to automated decision-making systems...
Revenue and Customs: Data Protection
To ask the Chancellor of the Exchequer, what steps HMRC is taking to ensure compliance with data protection requirements under the Data (Use and Access) Act 2025 relating to the processing of special category data, including data relating to health or pro
Answer · 10 Jul 2026
HMRC has a comprehensive approach to data governance for compliance with requirements under the Data (Use and Access) Act 2025 and other data protection legislation. This includes, for example, requiring the legislative conditions are met for the use of s...
Revenue and Customs: Artificial Intelligence
To ask the Chancellor of the Exchequer, what steps HMRC has taken to assess and mitigate risks of (a) bias and (b) discrimination arising from the use of automated decision-making systems.
Answer · 10 Jul 2026
HMRC assesses and mitigates risks of bias and discrimination through impact assessments and other governance controls, including Data Protection Impact Assessments (DPIAs). HMRC has updated and expanded the support available to staff when planning and imp...
Revenue and Customs: Artificial Intelligence
To ask the Chancellor of the Exchequer, what discussions (a) her Department and (b) HMRC has had with recognised trade unions in HMRC regarding the (i) introduction and (ii) use of automated decision-making systems affecting staff.
Answer · 10 Jul 2026
We are not aware of any automated decision-making systems within HMRC that are used in relation to employment, recruitment, performance management, discipline or allocation of work.We maintain regular engagement with our Trade Unions on workforce, recruit...
Revenue and Customs: Artificial Intelligence
To ask the Chancellor of the Exchequer, to what extent are automated decision-making systems in HMRC used in relation to civil service employment, including recruitment, performance management, discipline, or allocation of work.
Answer · 10 Jul 2026
We are not aware of any automated decision-making systems within HMRC that are used in relation to employment, recruitment, performance management, discipline or allocation of work.We maintain regular engagement with our Trade Unions on workforce, recruit...
Early day motions
| 16 Jul 2026 | Conduct of Bellway Homes Limited | 1 sig. |
| 13 Jul 2026 | London South Bank University industrial dispute | 23 sig. |
| 13 Jul 2026 | Industrial dispute of staff in the Foreign, Commonwealth and Development Office | 16 sig. |
| 6 Jul 2026 | 50th anniversary of the Trico strike for equal pay | 13 sig. |
| 1 Jul 2026 | Accountability of the Judicial Appointments Commission and protection of press freedom | 9 sig. |
| 1 Jul 2026 | Detention of Iranian labour activist Yaser Ahmadinejad | 6 sig. |
Speeches in the chamber
16 Jul 2026 Sir David Amess Summer Adjournment
Four years ago, we welcomed many new residents into a number of new homes in my constituency. Despite saving up, getting themselves on the property ladder and paying anything between £300,000 and £500,000 for brand-new leasehold properties…
16 Jul 2026 National Planning Policy Framework
I apologise to the Minister; I am hopping between two different debates in two different Chambers. I told my constituents that I would make this point about planning policy in my area, which has fought for decades to protect the green belt…
13 Jul 2026 Immigration and Asylum Bill
I wish to briefly return to the issue of trafficking. I welcomed Theresa May’s proposals and legislation on trafficking, which represented a huge breakthrough. I did so because in my constituency, we had hundreds of unaccompanied children …
9 Jul 2026 Israeli Settlements: Trade Ban
I think the Minister has got the message—[Laughter.] No, I am being serious. We cannot go on like this. We cannot keep on turning up and debating like this, and taking no action. The Minister is effective and has got the message, and I thi…
9 Jul 2026 Timms Review: Interim Report
I regret the stigmatising language that we have heard even today—this division between disabled people and taxpayers, as though disabled people do not pay taxes, and a division between those who work and those claiming PIP, when we all kno…
7 Jul 2026 UK Aid Policy: Global Funding Trends
The hon. Gentleman raises the principal point that this money will go from aid to defence. The reduction will be £4.8 billion in 2026-27, and then £6.5 billion. We obviously appreciate the need for defence investment, but that money is bei…
6 Jul 2026 Civil Service Pensions
I declare a non-pecuniary interest as the chair of the Public and Commercial Services Union parliamentary group. I take it as read that, when the Minister refers to the stakeholder group, it will include PCS, as the trade union. I also tak…
2 Jul 2026 Commonhold and Leasehold Reform: Managing Agents
I want to get on record what has happened in my constituency, because I said to my constituents that I would. With the expansion of Heathrow airport, land prices have gone up. Manufacturers have moved to cheaper areas, often with grants, …
2 Jul 2026 Business of the House
I declare a non-pecuniary interest as the chair of the Public and Commercial Services Union parliamentary group. The Leader of the House and many Members will know that since the payment of civil service pensions was outsourced, there has …
2 Jul 2026 Air Pollution
On the issue of messaging, I wonder whether the Minister could take a message back from this debate with regard to Heathrow: perhaps Ministers could read their own report on the health impact of airport expansion. I am particularly concern…
2 Jul 2026 Air Pollution
In London, a large number of individual politicians, including the mayor, had a rough time introducing ULEZ. It is time that we congratulate him on that achievement and on the way in which he courageously faced down the opposition.
2 Jul 2026 Air Pollution
I did not want to interrupt the flow of my hon. Friend’s speech, but now that he has been interrupted, I might as well. He too is a west London MP, so he is aware that Heathrow, in my constituency, is one of the most persistent air polluti…
1 Jul 2026 Israel: E1 Zone Expansion
I echo the frustration that we all have, and I want to live long enough to see Netanyahu before a criminal court. When we raise individual cases, it is frustrating to not know whether it will have any effect, but sometimes it can have the …
30 Jun 2026 Department of Health and Social Care
That is an incredibly relevant point in this debate. Many of us have examples of that, which is why we need to have a wider debate about the supply of drugs, their effectiveness and how they are evaluated. I thought we had a relatively obj…
30 Jun 2026 Department of Health and Social Care
The debate we have had so far highlights the issue at hand. This is an immense change to the way in which we will determine the delivery of drugs to the NHS, and one of my fears is that it will begin to weaken the existing controls. I thi…
24 Jun 2026 Climate Change
Can I, through my hon. Friend, ask the Minister to look at the Heathrow statement, which seems not to align with the policies we are advocating today? Also, some of the factual evidence that has been produced as part of the impact studies …
18 Jun 2026 Human Rights: Supply Chains
I thank my hon. Friend the Member for Southgate and Wood Green (Bambos Charalambous) for securing the debate, which is much needed. Also, it is not often that I thank an Everton supporter for anything, but thank you very much, Mr Dowd, for…
17 Jun 2026 National Security (State Threats) Bill
There is a consideration that needs to be properly debated and given the time to be debated. My specific point is that if the US moves against Cuba and imposes and demands a wider trade ban, for example, the argument could be made that we …
17 Jun 2026 National Security (State Threats) Bill
I am grateful for the Minister’s consideration of my mental health, et cetera. The designation covers “foreign interference in elections” and we will be campaigning to maintain solidarity with Cuba itself. On the second designation— “is…
17 Jun 2026 National Security (State Threats) Bill
Well, QED. There we have it. Under the Bill, as members of the Cuba Solidarity Campaign, I and many other hon. Members will be committing an offence—
Source: contributions on parliament.uk.
Full parliamentary career
Opposition posts
- Shadow Chancellor of the Exchequer · HM Treasury 14 Sep 2015 – 5 Apr 2020
Committee memberships
- Public Administration and Constitutional Affairs Committee 22 Feb 2021 – 30 May 2024
- Neonatal Care (Leave and Pay) Bill 20 Jul 2022 – 7 Sep 2022
- Higher Education (Freedom of Speech) Bill 7 Sep 2021 – 22 Sep 2021
- Justice Committee 25 Nov 2013 – 30 Mar 2015
- Regulatory Reform 16 Jul 2001 – 11 Apr 2002
Previous seats
- Hayes and Harlington · Elected 4 times 6 May 2010 – 30 May 2024
- Hayes and Harlington · Elected 3 times 1 May 1997 – 6 May 2010
Elections contested
- Hayes and Harlington 9 Apr 1992
- Hampstead and Highgate 9 Jun 1983
Party affiliation
- Independent 23 Jul 2024 – 26 Sep 2025
- Labour 1 May 1997 – 23 Jul 2024
Expenses
Contact & offices
0207 219 4100
Parliamentary office
House of Commons, London, SW1A 0AA
Constituency office
Pump Lane, Hayes, UB3 3NB
Frequently asked questions
Common questions about John McDonnell, answered from official Parliament data.
Who is John McDonnell?
John McDonnell is a Member of Parliament representing Hayes and Harlington in the House of Commons. See John McDonnell's official Parliament profile.
Which party does John McDonnell represent?
John McDonnell sits as Labour. See John McDonnell's official Parliament profile.
Which constituency does John McDonnell represent?
John McDonnell is the Member of Parliament for Hayes and Harlington. See John McDonnell's official Parliament profile.
How long has John McDonnell been an MP?
John McDonnell has served in the House of Commons for 29 years, 2 months. See John McDonnell's official Parliament profile.
What registered interests are listed for John McDonnell?
John McDonnell has 4 entries in the Register of Members' Financial Interests. See John McDonnell's official Parliament profile.
Source: this MP's official Parliament profile. Last updated 26 Jul 2026.