·4 min read
How to Calculate Your Day Rate: The Honest Version
Why most day rates are set too low: count billable days properly, cover fixed costs, add your target profit. With a worked example and the three ways past the ceiling.
- Day rate
- Hourly rate
- Agency
- Consulting
Your minimum day rate is your annual costs divided by the days you can actually bill, plus your target profit. The mistake is almost never in the formula, it is in the denominator. If you divide by 220 working days instead of the 120 to 150 you can realistically invoice, you set your rate systematically too low.
Most freelancers and agencies run this calculation exactly once, at the start, and never again. That is expensive.
The formula
Minimum day rate = (annual fixed costs + target profit) / billable days per year
Everything hangs on that last figure. Work it out rather than estimating it:
| Item | Days |
|---|---|
| Calendar days in the year | 365 |
| less weekends | -104 |
| less public holidays | -10 to -13 |
| less holiday | -25 to -30 |
| less sickness and buffer | -5 to -10 |
| Working days | around 215 |
And now the part almost everyone skips. Out of those working days come: sales calls and proposals, bookkeeping and admin, training, your own website and marketing, unpaid scoping work before the contract, and the gaps between two engagements. For solo consultants the billable share typically lands between 55 and 70 percent of working days, and well below that in a year when you are still building.
Be conservative and work with 130 to 150 billable days, not 215.
A worked example
An independent consultant with 60,000 EUR of annual fixed costs (office, software, insurance, pension, accounting, equipment) and a target pre-tax profit of 60,000 EUR:
- Using 215 days: (60,000 + 60,000) / 215 = 558 EUR per day
- Using a realistic 140 days: (60,000 + 60,000) / 140 = 857 EUR per day
Same requirement, 300 EUR of difference per day. Take the first number to market and you work a full year, then wonder why nothing is left at the end. The missing 75 days were never paid for, but they happened anyway.
You can run the same logic for your own setup in two minutes with the free break-even calculator: monthly fixed costs, volume (your billable days), target margin.
From hourly rate to day rate
A day rate is not eight times your hourly rate. It reflects that a booked day blocks the whole day for you, including context switching and travel. If you bill by the hour, either add a premium for small units or set a minimum booking, such as half days. Otherwise you are subsidising exactly the jobs that create the most friction.
The built-in ceiling
The uncomfortable property of billing for effort: your revenue is rate times days, and days are finite. Worse, the logic punishes competence. Solve a task in three hours instead of ten because you have done it before, and you earn less for it. The client is paying for your presence, not for the outcome.
That is why a clean calculation is only the first step. It gives you your price floor, not your price.
The three ways past the ceiling
- Fixed price per outcome. You estimate the effort from experience and sell the result. Efficiency gains stay with you. This requires a written scope with a rule for extra requests, otherwise the fixed price becomes an open tab.
- Productized offer. The same service, the same process, one fixed price. The effort falls with every repetition, the price does not. This is the strongest lever for agencies with recurring engagements.
- Value-based pricing. The price follows the quantified value for the client. This assumes you can put a number on that value; the glossary entry on value-based pricing explains how.
All three rest on the same groundwork: knowing what your client saves or earns because of you.
Common questions
How often should I revisit my rate? At least annually, and whenever fixed costs or utilisation shift noticeably. A rate that stays unchanged for three years has fallen in real terms.
Should I publish my day rate? Rarely useful in consulting, because the effort per engagement varies so much. It is useful for productized offers with a clearly bounded scope, where the price is a selling point rather than the opening of a negotiation.
What if the market will not pay my calculated rate? Then it is not a pricing problem, it is a business model problem. Either costs come down, or billable days go up, or the offer has to be sharpened for a segment with a larger budget. Simply lowering the rate just moves the problem into next year.
Does this also apply to agencies with employees? Yes, calculated per role. The billable share is usually higher for employees than for the self-employed, but salaries, management time and idle capacity join the fixed costs.
How this calculation feeds into a complete pricing logic for service businesses is covered on the agency pricing overview, and the full process is in the 9-step guide.