Agency Utilisation Rate: How to Calculate It and Plan Capacity

What is utilisation in an agency?

In a service business, people's time is the product. Utilisation measures how much of the time you pay for is sold to clients. It is usually expressed as billable utilisation: the share of a person's available hours that is billed, or billable, to client work.

It matters because almost every cost in an agency is people. If a studio pays for 400 available hours a week and sells 200 of them, the other 200 must be paid for out of the margin on the hours that are sold. That is why utilisation sits so close to profit, and why it is one of the first numbers agency owners and operations leads look at.

Utilisation is not the same as being busy. A person can be busy all week on internal meetings, admin, pitches and unlogged favours and still have low billable utilisation. Equally, someone can bill a lot and be doing too much. The number is a starting point for a conversation, not a verdict.

How do you calculate utilisation rate?

Start with available hours, not contracted hours. A person contracted for 37.5 hours a week is not available for 37.5 hours: leave, public holidays and sickness take a slice. Many studios apply a time off allowance to contracted hours to get a realistic weekly figure, then track actual leave month by month.

Then divide billable hours by available hours. If a designer has 150 available hours in a month and bills 96 of them, utilisation is 64%. Do the same for each person and for the team as a whole, using total billable hours over total available hours rather than an average of percentages.

Finally, check that timesheets are complete. If billable plus non-billable hours come to less than about 90% of available hours, the data is missing, and the utilisation figure is not reliable yet.

What is a good utilisation target for each role?

There is no single good number. A senior specialist who spends most of the day on client work can carry a high target. A project manager spends time on coordination that may or may not be billable, depending on how you price. An account lead spends much of their week on relationships and new business. An owner should have a falling billable target as the studio grows, and an operations lead may have almost none.

Set a target for each role, write it down, and review it once a year. The starting points below are illustrations to adapt, not benchmarks: agency benchmark publishers report their own ranges by agency size and type, and your own history after two or three quarters is the best guide.

What is the utilisation trap?

The trap is treating utilisation as a score to maximise. Below target, a studio loses money. But a person billing above roughly 90% of their available hours, month after month, has no time to learn, to help colleagues, to think, or to absorb the next urgent request. Quality slips, estimates drift, and good people leave. A studio running everyone at the edge cannot say yes to a good new client without breaking something.

The second part of the trap is managing the average. A team at exactly its weighted target can include one person working evenings and another waiting for a brief. The average looks perfect; the studio has two problems. Always look at utilisation by person, and look at it over two or three months, not one.

• Set a burnout line, often around 90% billable, and act when anyone is above it for two months.
• For anyone far below target, ask before you conclude: unlogged work, sales support, a stalled project or genuinely not enough work.
• Treat persistent overload as a staffing or estimating problem, not a scheduling one.

How do you plan capacity week by week?

Utilisation looks backwards. Capacity planning looks forward, and it is where most problems can be prevented. The simplest reliable method is a rolling resourcing plan: one row per person per project or activity, hours per week for the next eight weeks, updated in a 30-minute meeting every Monday.

Book everything, including leave, public holidays, pitching and internal work, so a full week looks full. Then compare each person's booked hours with their contracted hours. Anyone above 100% in a week is overloaded; above about 90% is stretched; well below 60% on average has spare capacity.

For every overloaded week, choose one of four moves: shift work to someone with the same skill, bring in a contractor, move a task within the project, or move a date with the client and tell them early. Use spare capacity on purpose: unbooked hours on live projects first, then pitches, then your own marketing and training.

How does utilisation connect to pricing and profit?

Every hour you sell has to carry the cost of the hours you cannot sell. That is why a charge-out rate that looks generous can still lose money. To find your real cost of an hour, divide each person's annual employment cost by the billable hours they will realistically deliver in a year, then add a share of overhead (rent, software, insurance and the rest) spread over all billable hours. The result is a break-even rate. Divide it by one minus your target profit share to get the rate you need.

Run the business itself on agency gross income (AGI): fees invoiced minus pass-through costs such as print, media and licences bought for clients. Utilisation, rates and AGI together tell you whether the studio is earning enough per hour sold, and whether it is selling enough hours.

If you want to test how you weigh these trade-offs, the AssessAll Budget & Resource Allocation Reasoning assessment looks at decisions like these.

How do you link the pipeline to capacity?

The capacity plan shows who is free. The sales pipeline shows what might be coming. Put them side by side. For each open opportunity, multiply the estimated hours by the probability of its stage (a proposal sent is not a signed project). Add up the weighted hours due to start in the next eight weeks and compare them with the spare billable hours on your capacity plan.

When weighted pipeline hours are far below spare capacity, sell, and do it now: the quiet month three months out is fixed by selling today. When they approach or exceed spare capacity, check every start date before anyone promises it, and line up contractors. Over a few quarters, replace the default stage probabilities with your own win rates.

Independent work is a large and growing part of the economy. MBO Partners' 2026 State of Independence research counts 74.9 million Americans earning income independently, and Upwork's Freelance Forward 2023 study estimated that 64 million Americans freelanced that year, 38% of the US workforce. For a studio, that means skilled contractors are often available to absorb a peak, which changes the hiring question.

When should an agency hire rather than use contractors?

Look for two quarters of evidence before adding a salary: a skill overloaded on the capacity plan for most of the last twelve weeks, and weighted pipeline that keeps it there. One busy month is a reason to brief a contractor, not to hire.

Contractors need their own discipline: a signed agreement before any brief, clear ownership of the work, data protection terms, and a regular review of how the arrangement works in practice. Rules on who counts as an employee are generally decided by how the work is really done and differ by country. In the US, for example, the IRS looks at behavioural control, financial control and the type of relationship. Check with your lawyer and accountant where you and your contractors are based.

Paying contractors on time matters too. In the UK, for example, GOV.UK explains that statutory interest on late business payments is 8% plus the Bank of England base rate, unless a contract sets another rate. Other countries have their own rules.

Where does AI fit into capacity planning?

AI tools are useful for laying out scenarios (what happens to each person's weeks if a large project lands next month), for breaking work into tasks before estimating, and for turning monthly utilisation figures into a clear note for the team. They do not know your people, your clients or your contracts, and their arithmetic needs checking.

Keep the decisions with people: who is booked, who is asked to work harder, who is hired. Use the numbers from your own capacity plan and timesheets, remove personal details where you can, and follow your clients' rules on confidential material. For a ready-made system, the Agency Operations Kit from Bodhih Training includes a resourcing plan, a capacity sheet with overload flags, a utilisation tracker by person and month, and prompts with human review rules. If you want to grow the leaders who run this rhythm, Jobulary explains how its development plans work.