A day rate is the fee you charge a client for one full day of your time. Freelancers in design, consulting, development, writing and the trades often quote by the day because it’s simpler than tracking hours and it suits project bookings. This page shows how to set a day rate that covers your income, your costs and your taxes — and shows the working, including the hourly rate your day rate quietly implies.
How the day rate is calculated
The logic mirrors an hourly rate, but the unit is a billable day instead of a billable hour. The formula is:
Day rate = (Take-home income + Business expenses) ÷ Billable days per year ÷ (1 − Tax rate)
Start with the income you want to take home for the year and add your annual business costs — that’s what the business needs to clear. Divide by one minus your tax set-aside to find the gross revenue you actually need to invoice. Then divide by the number of days you can genuinely bill in a year.
As with hourly pricing, the number that decides everything is billable days. There are roughly 260 weekdays in a year, but you will never bill all of them. You take time off, and a large share of every week goes to finding work, admin, invoicing and learning — none of which a client pays for. Billable days are only the days you can put on an invoice.
A worked example
Say you want to take home $60,000 a year. Your business expenses come to $6,000. You set aside 25% for taxes. You can realistically bill 4 days a week, and you take 6 weeks off across the year.
First, billable days: 52 weeks minus 6 weeks off leaves 46 working weeks. At 4 billable days each, that’s 184 billable days for the year.
Next, what you need to clear after costs: $60,000 + $6,000 = $66,000.
Now adjust for tax. You keep 75% of what you invoice, so the gross revenue you need is $66,000 ÷ 0.75 = $88,000.
Finally, divide by billable days: $88,000 ÷ 184 = about $478 per day.
If you work an 8-hour day, that day rate is equivalent to roughly $60 per hour — a useful cross-check. If the hourly equivalent looks too low for your market, the problem is usually that the billable-days number is too optimistic, not that the day rate itself is wrong.
Day rate versus hourly rate
Both rates protect the same income; they just package it differently. A day rate is cleaner for project work and full-day bookings, and it caps how much unpaid scope creep a client can squeeze into “an hour here and there”. An hourly rate is better for small, fragmented tasks and for work where the scope is genuinely unpredictable.
Many experienced freelancers quote a day rate to clients but still keep an hourly rate in their head as the underlying unit — so they can price a half-day, a quick add-on or an overrun fairly. The calculator gives you both at once for exactly this reason.
What pushes a day rate up or down
- Billable days. The single biggest lever. Be honest: four billable days a week is a strong week for most full-time freelancers.
- Booking type. A guaranteed week of work might justify a small discount; a single reserved day at short notice might justify a premium.
- Market and specialism. Niche, in-demand skills command higher day rates. Research what others in your field and region quote.
- Forgotten costs. Equipment, software, insurance, professional development, retirement and bad-debt risk all belong in your expense figure.
- Profit on top. The formula covers your pay and costs. If you want the business to build a buffer beyond your own salary, add a margin rather than treating “break-even” as success.
Common mistakes to avoid
The biggest mistake is assuming you can bill five days a week. Once you account for finding work and admin, that’s rarely sustainable, and pricing on it leaves you short. The second is treating a day rate as simply eight times an hourly rate without checking how many days you can actually fill. The third is forgetting taxes entirely and being caught out at year-end.
Use the calculator at the top of this page to plug in your own numbers. Adjust billable days, hours per day and tax set-aside until the day rate — and the hourly equivalent next to it — both look right for your market. Treat that figure as your floor, not your ceiling.