October 18, 2026
The most common route to a chief financial officer's seat runs through the controller's chair, and it is a natural progression, because the person who has owned the accuracy of the numbers understands the business from the ground up. Yet the step from one role to the other is larger than the organisation chart suggests, and a good controller does not automatically become a good chief financial officer simply by being promoted. The two jobs are built to reward different things, and the whole of the distance between them can be summed up in a single shift: from recording what has already happened to shaping what happens next. Understanding that line, and whether a given controller has crossed it, is the key to the whole transition.
The controller's craft is defined by a healthy discomfort with any number that has not been reconciled, and that instinct is one of the most valuable things a finance function possesses. It is also, by design, a backward-looking discipline, concerned with representing the past as faithfully as possible through clean books, timely closes and defensible accounts. None of that diminishes when a controller is excellent at it; on the contrary, it is the foundation everything else stands on. The chief financial officer's craft points in the opposite direction. It asks what the business will earn if a set of decisions are taken, how sensitive that answer is to the assumptions beneath it, and where the plan breaks if the world turns out differently. It is forward-looking, and it is as much about judgement under uncertainty as it is about precision.
That forward-looking work is where the real demands of the senior seat concentrate. A chief financial officer is the person who builds the model behind a fundraise, defends a forecast to a board or a lender, decides which growth is worth the cash it consumes, and turns a strategy into a set of numbers other people are willing to act on. These are not higher skills than the controller's, simply different ones pointed at the future rather than the past, and framing them as a step up a hierarchy does a disservice to both. A controller may simply never have been asked to exercise them, not through any lack of ability but because the role never called for them. A controller who has spent years producing impeccable management accounts can still be some distance from the first time they have to build the case for a decision that has not happened yet.
This is why the step up is better understood as a question of evidence than of seniority. The useful thing to establish about a controller with ambitions toward the top seat is not how long they have run the ledger, but whether they have already done any of the forward-looking work the chief financial officer's role depends on. Have they owned a model that a real decision rested on, sat in the room when it was challenged, and learned why a forecast missed when it did. A controller who has stretched into that territory, even informally, is far closer to ready than a nominally senior finance professional who has spent a decade reporting the past with great skill and never been tested on the future. The most revealing conversation to have with a candidate for the step is rarely about the systems they have run. It is about a forecast they built that turned out to be wrong, what they had missed, and how they handled it, because that shows whether they treat a model as a living argument rather than a spreadsheet to be filled in.
The reason this matters more now than it once did is that the forward-looking numbers have become the instrument through which a business is actually steered, rather than a planning document produced once a year and filed. Research on how value is created increasingly places operational decisions, pricing, margin and growth, at the centre of performance, and every one of those decisions lives first as an assumption in a model before it becomes a result in the accounts. A finance leader who cannot build and defend that forward view leaves the business steering half-blind, unable to tell a decision that is working from one that was never measured properly. The controller who grows into that capability becomes genuinely hard to replace. The one who does not can run a flawless close for years and still find the ceiling of the role arriving sooner than expected.
For finance professionals who want to make the step, this points to the most useful thing they can develop. It is genuine forward-looking capability rather than another year of reporting excellence: owning a model that a decision depended on, putting a forecast in front of people who could challenge it, and building the judgement that comes only from having been wrong and understanding why. That is a learnable discipline rather than an innate gift, which is the encouraging part, and a strong controller who deliberately builds it is often a better candidate for the top seat than someone more senior on paper. The line between recording the past and shaping the future is one of orientation rather than talent, and it takes nothing away from the controllers whose precision makes everything else possible. Crossing it deliberately is what turns a very good controller into a chief financial officer the business can rely on to tell it not just what it earned, but what it will.
