How it works
Pro rata salary = full-time salary × your weekly hours ÷ full-time weekly hours.
A worked example
A £40,000 full-time salary becomes £24,000 at 22.5 hours when full time is 37.5 hours.
What to keep in mind
Assumes pay is proportional to contracted weekly hours. Benefits, allowances, paid weeks and employer policies can affect the actual offer.
A common question
Does pro rata change my hourly rate?
No. A straight pro-rata calculation preserves the same implied hourly rate and reduces annual pay in proportion to hours.
For general information and planning, not personalised financial or tax advice. Verify important decisions with a qualified adviser.