A simple formula for the minimum hourly rate your agency needs, with a worked example and what to do when the number feels too high.

Most agencies set their rate by looking at what competitors charge and rounding to a number that feels fair. That is a guess. A rate that is too low looks fine for months, then shows up as a quiet problem: you are busy, the invoices go out, and there is still not enough left at the end of the month.
A better starting point is to work backwards from what the business needs. This post gives you the formula, a worked example, and the number that moves the result most.
Your minimum hourly rate is the money the business must earn in a year, divided by the hours you can actually bill.
Minimum hourly rate = (target take-home + yearly business expenses) ÷ billable hours per year
Billable hours per year = hours per week × (52 − weeks off) × billable share
Billable share is the part of your working time that clients actually pay for. Admin, sales calls, hiring and invoicing are real work, but nobody pays for them directly, so the rate has to cover them.
Take a small agency owner with these numbers:
Billable hours per year: 40 × (52 − 6) × 0.60 = 1,104 hours.
Money needed: $80,000 + $12,000 = $92,000.
Minimum rate: $92,000 ÷ 1,104 = $83.33, so round up to $84 an hour. That is $672 for an 8-hour day.
This is the lowest rate that still reaches the target. It is a floor, not the price you should aim for.
Change only the billable share and keep everything else the same:
The same agency doing the same work needs a rate that is $53 higher at 40% billable than at 70%. Often, a rate that feels too low is really a billable-share problem.
Do not guess this number. Track your time for two to four weeks, every task, including the work you cannot bill. Then divide billable hours by total hours.
If you use HireOrSell, timesheets let you clock in and out against a project, and each entry can be marked billable or non-billable, so the split is easy to read back.
If the result is above what your market pays, you have three levers, and raising the hourly number is only one of them:
Do not simply copy a competitor. Their costs, team and billable share are not yours.
The calculator on this site does exactly this arithmetic. Enter your five numbers and it returns your minimum rate, your rate per day and the revenue you need each year: Hourly rate calculator.
Review the number every year, and again whenever your costs, hours or goals change.
Projects, clients, time tracking and invoicing in one platform.