Take an old salary, divide it by roughly 230 working days a year, and you get a number that looks like a day rate. It isn't — or at least, it's a day rate for a version of freelancing where every single weekday is billable, nothing ever goes quiet, and none of your own costs exist. None of that is how freelancing actually works.
What a salary quietly includes
A salary comes with paid holiday, sick pay, a pension contribution, and continuous pay between jobs. A day rate has to cover all of that itself, out of fewer days than the maths first suggests — which is why the same annual income needs a noticeably higher day rate to actually land in the same place.
The gap between calendar days and billable days
Start from 52 weeks and the number shrinks fast: holiday, time between contracts, and public holidays come off first, and admin — invoicing, finding work, calls that don't get billed — eats into what's left. Most freelancers bill well under 230 days a year, even working full-time.
Costs that don't disappear
Software, insurance, equipment, an accountant, a slower month here and there — all of it comes out of the day rate, not out of somewhere else. A rate that only covers take-home pay and nothing else tends to feel fine for a few months and then quietly fall short.
A number to treat as a floor
Working backward from a target income, real costs, and a realistic count of billable days gives a rate that's the minimum needed to hit that target — not necessarily what to quote. Many freelancers round up from there, as a buffer for quiet months or scope that creeps past what was agreed.
This article is general information, not personal financial advice. If you're making a real decision based on these numbers, it's worth talking to a qualified financial adviser who knows your full situation.
