The following is a guest article by Oreoluwa Onabowale, FP&A Lead at GE Vernova. The views expressed are solely those of the author.

Finance work is built on rules: closing calendars, approval gates, capital expenditure hurdle rates, variance thresholds. But what do you do when following the rules means missing the right decision?

The best CFOs I have known are not just executors of processes; they also know when to flex the rules to meet business needs. This kind of adjustment is not reckless, nor is it about dressing up quarterly numbers. It is about pushing the business forward when timing, risk, and opportunity converge.

I have witnessed such scenarios firsthand: a star employee joining mid-year beyond the approved headcount; a once-in-a-decade market opportunity emerging with an incomplete investment case; a key supplier on the brink of collapse where procurement's payment terms would only make things worse.

A courageous CFO does not hide behind policy. They pause, weigh the risks, break the rule, and explain why to the business. These moments greatly strengthen the trust of the CEO and the board, because Finance is seen not just as a gatekeeper, but as a business partner.

When Do Rules Become Obstacles

Rules keep the business honest, but blind adherence can also stifle growth.

Take capital approval thresholds, for example. Most companies set an internal minimum return rate for projects, and all business cases must meet it. In theory, this ensures that only value-creating investments move forward. But in practice, when a project falls short by just 0.5 percentage points for strategic reasons, it can trigger analysis paralysis.

I once attended a review where an operations leader proposed a capacity expansion. Due to a temporary spike in steel prices, the project's return was slightly below the threshold. The easiest move would have been to reject it and ask them to rebuild the model. But the CFO approved it on the spot, citing that market demand and supply chain risk could not afford delay. Six months later, the plant was running at full capacity, with a payback period faster than expected.

Breaking the rule was not a shortcut; it was a well-informed judgment that ultimately paid off.

Not every exception succeeds.

Years ago, I watched a business unit push through a major system upgrade outside the normal budget cycle. The CFO approved it quickly to lock in a limited-time vendor discount, but the implementation was rushed, key stakeholders were not aligned, and adoption lagged. The system eventually worked, but it was months behind schedule, and manual workarounds far exceeded expectations.

That experience taught me that judgment must respect fundamental principles: stakeholder readiness, execution capability, and a clear plan for handling the unexpected. Breaking rules should create speed, not chaos.

The Line Between Judgment and Recklessness

This is the dividing line that separates a trusted CFO from one seen as reckless.

Breaking rules does not mean ignoring them. The best CFOs know which guardrails are non-negotiable—the controls that protect integrity, compliance, and financial stewardship. They never compromise on these.

But for business rules, such as capital expenditure thresholds, hiring freezes, or budget limits, they remain flexible. Before making a decision, they ask three questions:

  1. What is the risk of acting now?
  2. What is the risk of waiting?
  3. If this fails, what story will I need to tell the board?

This clarity ensures that exception decisions are deliberate, transparent, and defensible.

Moments That Build Trust

I once heard a CEO say during a heated review: "If we follow the process, we will miss the window." The CFO paused, looked around the table, and replied, "Then we change the process." That moment shifted the tone of the meeting, and the project got the green light.

I also recall a period when tariffs spiked unexpectedly. Procurement wanted to renegotiate contracts to recover costs, but the commercial team had just closed a large deal at aggressive prices. The model suggested holding guidance steady, but the CFO instead set guidance slightly below market consensus and explained the rationale and clear mitigation measures on the earnings call.

When tariffs rose again, the company landed exactly within the guidance range, and investor trust increased. Breaking the rule of "always following consensus" was not a weakness; it was wisdom.

It is easy for Finance to hide behind process. "Policy does not allow it" is the safest phrase in the boardroom. But the CFO's job is not to be the safest person in the room; it is to have the clearest view of risk and reward and the courage to speak up.

Sometimes that means saying "yes" when the process says "no," and other times it means holding the line when everyone is rushing forward. Either way, the decision is yours, and the credibility you build in those moments will define how the business views Finance for years to come.

The CFO's Balancing Act

Rules keep the business honest; judgment keeps the business alive. A CFO who can balance both is not just a scorekeeper, but a strategist.

The best CFOs do not just follow the rules; they know which ones can be flexed and move the business forward in a way that does not lose trust. This is the key to Finance evolving from a control function into a driver of long-term value—both inside the company and in the eyes of investors.

The companies that thrive have CFOs who know when to enforce discipline and when to break rules to unlock opportunity.