In the UK, the P45 has been a Very Important Piece of paper for many decades.

(in the UK and the Republic of Ireland) a certificate given to an employee at the end of a period of employment, providing details of their tax code, gross pay, and the tax paid for that year, to be passed to a subsequent employer or benefit agency.

Nowadays we seem to need a P90

That’ll be a P45 document plus a Clarkson P45.

Mathstard that I am, I think that’ll be a P90 ? ? ?

Shrug