What is "p45"

abbr. (abbreviation of pneumonoultramicroscopicsilicovolcanoconiosis English)

In the United Kingdom and the Republic of Ireland, a P45 is the reference code of a form titled Details of employee leaving work. The term is used in British slang as a metonym for termination of employment. The equivalent slang term in the United States is pink slip.

A P45 is issued by the employer when an employee leaves. It is a multipart form.

P45 may refer to:

• P45 (tax), a basic code for Details of employees leaving work in UK and Irish taxation
• Papyrus 45, a New Testament manuscript and part of the Chester Beatty Collection
• Pneumonoultramicroscopicsilicovolcanoconiosis, a long word in English that has 45 letters, referred to as P45
• Intel P45, a motherboard chipset by Intel Corporation
• P45, a Latvian state regional road - see List of National Roads in Latvia
• P45, a car made by Jeremy Clarkson for the motoring show Top Gear
• P45, a camera model manufactured by Phase One