Ask a finance business partner what they did this month and you'll get a list like this. Rebuilt the dashboard with FP&A. Closed the books on time with reporting. Got the accruals and prepayments right. Signed off a forecast that ties back cleanly to the CFO's plan.

None of that gets seen by the business. What the business sees is something else entirely. The challenge in a budget meeting. The commercial read on a decision. The case for next year's investment.

Those are two different jobs wearing one job title. That's where it gets interesting.


I had a CFO once end a budget call with the FBP team like this.

"Don't forget you work for the CFO."

He wasn't wrong. The org chart said so. The pay review said so.

But if that's really all the job is, if an FBP's only loyalty is to a plan that works for the CFO, then a business doesn't need business partners at all. Send round the numbers and a memo. You need a partner when the plan has to survive contact with a stakeholder who has a target to hit and a view on how to hit it that doesn't quite match the spreadsheet.


Holding both, not choosing one

That's the actual job. Not picking a side. A good FBP protects the integrity of the CFO's plan and represents the commercial reality the stakeholder is dealing with, at the same time, in the same conversation.

Drop either half and the model breaks. Drop the CFO side and you get a function that just tells the business what it wants to hear, which is worse than useless. Drop the stakeholder side and you get a compliance officer with a finance qualification.


What that line actually costs a CFO

Here's the part CFOs don't always clock. Tell your FBP team often enough that they work for you, and they'll believe you. You'll get people who stop bringing you the awkward commercial pushback because it's easier to just align with the plan. You'll end up with a planning function, not a business partnering one.

And you'll probably lose the good ones. They took the job to do both halves of it, not to be a junior extension of the CFO's office.

If you're a CFO, the line worth using isn't "you work for me." It's closer to this: your job is to make sure I can't get away with a plan that doesn't work on the ground, and make sure the business can't get away with a plan that doesn't add up. That's a harder job than either half on its own. It's also the only version of it that's worth having.

Mark Lynam is a senior finance leader with 20+ years experience in commercial finance and FP&A. He works with businesses that need sharp financial thinking at the leadership table. Get in touch or connect on LinkedIn.