Engineering and consultancy firms keep a close eye on utilisation, but it's often misunderstood. It isn't just a measure of how busy a team is. It shows how well projects turn time into profit.
Read properly, utilisation shows where you're protecting your margins, and where you might be losing them without noticing.
What utilisation rate actually measures
Utilisation measures the percentage of working time spent on billable work. At first glance that seems simple: more billable hours should mean more revenue. But utilisation on its own says little about financial results. It needs to be read alongside pricing, delivery efficiency and project management.
Why high utilisation can still mean low margins
Many firms try to keep utilisation high for everyone, which can create a false sense of good performance. High utilisation can coexist with falling profits, usually when:
- Projects are priced too tightly at the outset
- Teams take longer than planned to deliver
- Rework and coordination inflate the time spent
- Senior staff are drawn into delivery rather than oversight
In each case people spend more time, but the value doesn't rise. The result is more work and less profit.
What low utilisation is telling you
Low utilisation isn't always a bad sign. It can point to a weak pipeline, poor resource allocation or gaps between project phases. But it can also show a firm deliberately investing time in business development, process improvement or strategic leadership. The real question isn't whether utilisation is high or low. It's whether time is being used in a way that helps the business.
Utilisation as a leading indicator of margin
A project's profit depends on how time is used. Every extra hour adds cost, and if the fee doesn't rise to match, margin shrinks. That's why utilisation should be treated as an early warning sign, not just something to review afterwards. For example:
- A project scoped at 1,000 hours but delivered in 1,250 hours will materially reduce margin.
- High utilisation on underpriced work accelerates profit erosion.
- A lack of visibility delays corrective action.
By the time the impact shows in your accounts, the profit has already gone.
Practical benchmarks: what good looks like
Utilisation targets should differ by role; one target for everyone leads to poor decisions. As a guide:
- Junior and delivery staff: 75% to 85%. Core revenue drivers; variance often signals inefficiency or poor planning.
- Mid-level engineers: 70% to 80%. A balance between delivery and coordination responsibilities.
- Senior engineers and leads: 60% to 70%. Lower utilisation reflects oversight, quality control and decision-making.
- Directors and partners: 30% to 50%. Focus on strategy, client relationships and high-value input.
These aren't numbers to push as high as possible. They're signals to help you understand what's happening. Pushing senior staff to high utilisation, for example, often hurts project profit rather than helping it.
Where utilisation breaks down in practice
Problems with utilisation rarely come down to individuals. They're usually structural:
- Inaccurate project scoping. Projects are priced as if everything will go perfectly.
- Weak time tracking. Time is recorded inconsistently, without useful categories or regular checks.
- No real-time financial visibility. Firms can't see how time affects cost and profit while projects are still live.
- A gap between finance and delivery. Project teams work without the full financial picture.
How to use utilisation to improve margins
Firms with steady margins don't push utilisation as high as possible. They use it as a management tool:
- Set role-specific targets that reflect each person's real responsibilities.
- Feed data back into pricing, using historical utilisation to refine future estimates.
- Monitor in real time, with project dashboards tracking time, cost and profit as work happens.
- Link it to financial outcomes, always reviewing utilisation alongside revenue, cost and margin.
From busy teams to profitable projects
A busy team doesn't mean a profitable business. Firms that focus only on utilisation end up rewarding activity rather than results. The firms that do well over time link utilisation to their pricing, project management and financial reporting. You can read more on our utilisation rate and project profit margin pages.
Final note
If your teams are working at high utilisation but profits are still tight, the problem isn't how much they can do. It's how their time is being used.
Want to see what your utilisation is really telling you? Our Finance Review analyses it alongside margin, using your own data.
