REFORMUK

Selby

Keir Mather

Labour, MP since 2023

Official portrait of Keir Mather

Claimed in 2024-25

£306,391

52nd highest of the 650 sitting MPs in the UK.

Staff wages

paid to the MP's own employees

£243,010

Office costs

rent, utilities, equipment, printing

£26,650

Accommodation

London rent and bills

£26,340

Travel

the MP's own and their staff's

£10,391

Cost per elector

on 78,043 electors

£3.93

(b) Any other support not included in Category 2(a)

  • Name of donor: Unison Address of donor: 130 Euston Road, London NW1 2AY Amount of donation or nature and value if donation in kind: £2,000 leaflet and direct mail for constituency campaigning Date received: 24 December 2025 Date accepted: 24 December 2025 Donor status: trade union (Registered 5 January 2026)

Checked 16 Aug 2026. Data pulled live from IPSA’s published 2024-25 totals and the UK Parliament Members API.