What this site is
ProRataPay.co.uk turns a full-time salary into its part-time equivalent and works out holiday entitlement, including the tricky zero-hours cases. It answers the question behind every “22.5 hours a week” job ad.
It was built because pro rata maths trips up both employees and small employers, and the existing tools bury the answer under jargon.
Where the data comes from
Holiday entitlement rules and minimum wage rates come from gov.uk guidance.
How it stays accurate
Rates are refreshed every April when the new UK tax year figures land.
Who runs it
ProRataPay.co.uk is a personal project, built and maintained by an independent web developer. It is free to use and not affiliated with any government body or official organisation. The tools here are provided for convenience; for decisions that matter, always confirm with the official source.
Contact
Spotted a mistake or have a suggestion? Email [email protected]. Corrections usually go live within a day or two.