For most of Britain's Parliament’s history, MPs weren’t paid and instead relied upon a private income or the patronage of local landowners/gentry to afford to be an MP. Many MPs bought their seats or inherited them from aristocratic families/bloodlines.

MPs’ salaries increased steadily to £4,500 by 1971. From 1971 to 2010, they were based on senior civil service bands and reviewed by the Senior Salaries Review body at the beginning of each parliament.

Free rail travel for MPs to commute between their constituency and Westminster began in 1924, and from 1969, MPs were allowed to claim for office and research expenses. This was followed by a second home allowance, pension scheme, and communications allowance in 2007.

The basic annual salary of an MP in the House of Commons is £91,346 from April 2024.

(https://www.parliament.uk/about/mps-and-lords/members/pay-mps/)

Median gross annual earnings for full-time employees who had been in their job for at least a year were £37,430 in April 2024, compared with £35,004 in April 2023 (an increase of 6.9%).

The MP's basic annual salary is 2.44 times greater than the average yearly earnings in the UK.

(https://www.ons.gov.uk/employmentandlabourmarket/peopleinwork/earningsandworkinghours/bulletins/annualsurveyofhoursandearnings/2024#:~:text=Median%20gross%20annual%20earnings%20for%20full%2Dtime%20employees%20who%20had,earnings%20for%20full%2Dtime%20employees.)

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