Day Rate Calculator UK

A day rate calculator converts a contractor's daily rate into an equivalent annual salary, and estimates take-home pay after tax and National Insurance. It helps contractors and freelancers compare day rate contracts to permanent salary roles.

Multiply your day rate by the number of working days per year (typically 220-230 after accounting for holidays, bank holidays, sick days and gaps between contracts). For example, a £400 day rate over 220 working days equals £88,000 per year before tax.

This varies enormously by industry and skill level. Junior contractors might charge £150-£250/day, mid-level professionals £250-£450/day, and senior specialists or niche skills £450-£800+/day. IT, finance and specialist engineering roles tend to command higher day rates.

Most contractors use 220-230 days to account for 25-28 days holiday, UK bank holidays, and typically a few weeks of gaps between contracts or unpaid notice periods. Some contractors use a more conservative 200 days to be cautious.

Usually no — contractor day rates are typically for days actually worked, with no separate holiday pay, sick pay or other employee benefits. This is why day rates are generally higher than the equivalent daily rate of a permanent salary.

A day rate needs to be meaningfully higher than the equivalent daily rate of a permanent salary to compensate for lost benefits (holiday pay, sick pay, pension contributions, job security) and the administrative burden of contracting.