24 September 2026
Commercial Acumen: The Leadership Skill That Changes Your Influence
By
Kate Waterfall Hill
There’s a moment I’ve noticed in meetings when the conversation shifts from enthusiasm to consequence.
Someone has an idea. It sounds exciting. Everyone agrees it would be great for the client.
Someone says, “We should definitely do that.”
And then somebody asks:
“What does that mean for the margin?”
Or:
“If we do that, what are we not doing?”
It can change the conversation quite quickly.
Not because that person is trying to spoil everyone's fun, or because they’re the one person in the room who enjoys a spreadsheet more than is strictly necessary.
They’re connecting the decision to what happens next.
And I think that’s a big part of commercial acumen.
If you'd prefer to listen rather than read, I explore this in more detail in the latest mini-series episode of How to Lead: Why Your Voice Isn't Being Heard – Part 2.
It isn't about becoming “the numbers person”
Commercial acumen can sound rather grand, which probably doesn't help.
People sometimes assume it means understanding every line of a P&L, speaking fluent finance or becoming the person everyone avoids sitting next to at the budget meeting.
It doesn't.
It’s about understanding that decisions have consequences.
Something that looks straightforward in one part of the business might affect time, margin, capacity or the client relationship somewhere else.
Commercially aware leaders get into the habit of making those connections.
They don't simply ask whether something is a good idea. They ask what it will cost, who has the capacity to do it, what has to give if they say yes, and whether it still makes sense once you look beyond the immediate problem.
That can make a real difference in your influence.
There’s a difference between:
“I think we should do this.”
and:
“I think we should do this, and here's what it means for the team, the client and the business.”
The second tends to carry a little more weight.
Where this shows up on a Tuesday afternoon
In agencies and consultancies, commercial decisions rarely arrive wearing a badge saying commercial decision.
They turn up as a client asking whether you could “just add one more deliverable”.
Or a team member saying they're overwhelmed and need more support.
Or a brilliant creative idea that everyone loves, which will cost twice as much to deliver as the client is paying.
That little word “just” has probably done more damage to agency margins than most of us would like to admit.
A client says:
“Could you just add this in?”
The instinctive response might be:
“Yes, we'll make it work.”
The commercially aware response might be:
“Is that within the agreed scope, or are we extending it?”
You're not being difficult. You're finding out what you're agreeing to.
The same applies when someone tells you they need more support. Perhaps you do need another person or to move some work around.
But before jumping to the solution, it’s worth understanding what’s actually happening.
Has demand increased? Have you underpriced something? Has the scope quietly expanded? Is one client taking far more time than anyone realised? Or is the team spending three hours doing something that could take one if the process was less spectacularly complicated?
Commercial thinking isn't about dismissing a problem because it costs money to solve.
It's about understanding the problem before deciding what to do about it.
Good ideas still have consequences
This can be particularly difficult when you care deeply about the quality of your work.
Someone brings a genuinely brilliant idea. The team is excited. The client would probably love it.
Nobody particularly wants to be the person asking whether it's proportionate to the budget.
But somebody needs to.
You can care about doing excellent work without quietly subsidising it. You can support an overstretched team while still asking whether the real problem is capacity, pricing or planning.
And you can really want to win the client without automatically agreeing to another discount.
Leadership involves trade-offs rather more often than it involves perfect answers.
Speed or quality. Revenue or capacity. Growth or margin.
Saying yes to one thing nearly always means something else has to give.
Why this changes how people hear you
One reason commercially aware leaders are often listened to differently is that they move the conversation beyond preference.
“This feels like a lot of work” may be completely true.
“If we add that, which client drops in priority?” gives everyone something more concrete to work with.
The same goes for risk.
Rather than simply saying something feels risky, what happens if it doesn't work? Who absorbs the cost? What does it mean for the margin or delivery?
You don't need to turn every meeting into Dragon's Den.
But when you can connect an idea to its consequences, people begin to understand how you think.
Senior stakeholders can see that you're looking beyond your own area. Your peers are more likely to involve you earlier. Your contribution becomes harder to dismiss as personal preference.
It doesn't mean you'll always get your way.
Commercial awareness isn't a magic phrase you can add to the end of an argument and suddenly become the wisest person in the room.
But it gives your thinking context.
And context can make your voice considerably more influential.
What this looks like in practice
You don't need to become an accountant or memorise the company finance pack.
Start smaller.
In your next meeting, listen for a decision and ask yourself:
What will this cost?
Who has the capacity?
What are we giving up if we do this?
Is this profitable work, strategic work, or something we've agreed to because nobody wanted to have an awkward conversation?
That last one can be surprisingly revealing.
Scope is another good place to practise.
Scope creep rarely arrives dramatically. It's usually an extra tweak, another review or something the client assumed was included.
Each one seems manageable, particularly when you're trying to be helpful.
Then somebody eventually looks at the project and wonders where the margin went.
Sometimes the most useful thing you can say is:
“That wasn't in the original agreement. Do we want to treat it as an extension?”
The earlier you notice these things, the less dramatic they tend to become.
And get comfortable with the numbers that affect your part of the business.
You don't need to know everything. You do need to understand enough to connect the decisions you're making with what they mean in practice.
Where does the time go? What's expensive to deliver? Which clients are profitable? Where are you regularly doing work nobody has really priced for?
Avoiding those questions doesn't make them less relevant.
It simply means someone else will probably answer them.
Not everything has to be about margin
Some work is worth doing even when the immediate margin isn't spectacular.
Perhaps it opens a door, strengthens your reputation or gives you experience in a sector the business wants to grow in.
That's fine.
What matters is knowing why you're doing it.
“This isn't hugely profitable, but it strengthens our position in this sector” is a commercial decision.
Continuing to lose money on something while vaguely hoping it might lead somewhere eventually is also a decision.
Just not always a particularly deliberate one.
The same goes for discounting.
Sometimes there are good reasons to move on price. But if you discount because the conversation feels uncomfortable, that's worth noticing.
Try holding your price once where you might normally concede. Explain the value, stay calm and see what happens.
Clients sometimes push because they can.
They don't always need you to say yes.
Building a different instinct
You may have been promoted because you were brilliant at delivery.
You know how to solve the problem, keep the client happy and get the work over the line.
Those instincts have probably served you very well.
As you become more senior, though, you have to learn when not to use them.
When a client asks for something extra, your instinct may be to make it happen. When the team is under pressure, you may want to jump in. When someone says the work can't be done within budget, you may immediately start looking for a way to squeeze it in.
None of those instincts is inherently bad.
But leadership sometimes means pausing long enough to ask what happens if you keep responding in the same way.
And you build that through practice, not by learning another list of commercial terms.
You need opportunities to look at real decisions, work through the consequences and notice what you do when the pressure arrives.
One question to take into your next meeting
If you want a starting point, keep it simple.
When someone suggests a course of action, ask yourself:
What will this mean in practice?
For the client. For the team. For capacity. For the margin.
And for everything else you're choosing not to do.
You won't need to ask all of those questions every time. That would become tiring for everyone, including you.
But getting into the habit of looking beyond the immediate idea can change both the decisions you make and how others hear your contribution.
Commercial acumen isn't reserved for finance teams or senior executives.
It's part of understanding the business you're helping to lead.
And if you want your voice to carry more weight, it helps to show that you've thought about what happens next.
If you want support developing that kind of thinking in real situations, rather than simply learning about it, that's the sort of work we do inside The Leadership Accelerator.
It's a space to bring the decisions you're dealing with, examine the assumptions underneath them and practise different ways of responding before the next client email, deadline, or awkward conversation lands in your inbox.
Find out more about The Leadership Accelerator →
