Navigating your first 90 days as a CFO: What you need to know to succeed

Stepping into a new CFO role, whether it’s your first time in the seat or simply your first month in a new company, has always felt, to me, like drinking from a fire hose.

No matter how seasoned you are, no matter how many C-suite roles you’ve held, the early days are overwhelming in the same familiar way.

You think you understand the landscape from the interview process, and you walk in feeling cautiously confident.

But then day one arrives, and suddenly the neatly packaged narrative you were told during recruitment gives way to the real business: its cracks, its silos, its miscommunications, and its pressures.

I’ve worked in CFO and CEO roles across different markets and companies, including swipejobs and now World Energy.

I’ve run a global consulting firm that took me through Europe and Asia, where I learned as much from my mistakes as from my successes.

Across all those roles, one thing has remained constant: your first ninety days set the tone for everything that follows. They determine how people perceive you, how much trust you earn early, and how effectively you can start influencing the company’s direction.

These days, I like to joke with audiences that I’m bilingual: I speak English and I speak Australian. The Australian version has lots of nuance, and if you don’t understand me I can dial it back.

But humor aside, that feeling of being immersed in a flood of information (and having to make sense of it quickly) is universal for every CFO starting fresh. What I’ve learned over the years is that having a structured approach isn’t just helpful, but essential.

Ninety days can go by in a whirlwind, and without a clear framework, it becomes easy to chase competing priorities without building a foundation.

So here’s my blueprint (broken into three thirty-day stages) grounded in lived experience, the problems I’ve walked into, the mistakes I’ve made, the questions I now know to ask, and the lessons I’ve learned the hard way.

The first 30 days: Understanding the business before trying to fix it

Whenever I join a new organization, the very first thing I do is try to understand the business.

Not the theoretical business described in board decks or interviews, but the real business shaped by real people operating under real pressures.

Long before becoming a CFO, I ran a global consulting firm. I worked throughout Europe and Asia, learning through a mix of fantastic experiences and a fair number of mistakes.

One of the most important lessons that period taught me was the value of the org chart; not the neat, polished version circulated during onboarding, but the version that actually reflects influence, friction, bottlenecks, and unstated hierarchies.

If you don’t understand who the key players are, you won’t understand why things happen the way they do.

So during those first thirty days, I set up one-on-one meetings with leaders from every corner of the business. I don’t ask for presentations; I ask for candor.

People are remarkably honest in a one-on-one setting, especially when they don’t feel exposed in front of their peers.

They will tell you which processes are broken, who they can’t work with, what delays are hurting their ability to hit targets, and what they wish finance would stop doing.

Early in one role, for example, I thought I had a firm grasp on the company’s systems and processes before I walked through the door. But once I arrived, I realized the organization had significant cash-flow management issues and that nearly every department was running on different systems.

There was no unified financial platform like NetSuite. Data lived in silos. Business units had fundamentally different understandings of the company’s cash position.

It was the kind of problem that can go unnoticed until you're in the room, asking the questions that reveal fragility beneath the surface.

This is why I obsessively document everything in the first thirty days.

When I start hearing similar concerns from multiple leaders (whether around reporting delays, system inefficiencies, or strategic misalignment) I bucket them together.

Those buckets become the foundation for candid conversations with the CEO.

And speaking of CEOs: one of the most important early conversations is about the company’s growth strategy. I always ask the CEO directly: Where are we going? How do you intend to grow? How will we pay for that growth?

Because understanding strategy without understanding financing is like being given a destination with no idea how full the fuel tank is.

Are we relying on line-of-credit financing? Are we looking at capital raises? Are we preparing for an IPO? Are we leveraging private investments? The answer fundamentally shapes how a CFO must operate.

During this period, I also review the financials; everything from cash-management practices to the balance sheet to the company’s lending facilities.

Once, I stepped into an organization where the fixed charge coverage ratio (FCCR) reporting was being completed on the very day it was due. No forecasting. No forward visibility. I thought I’d produce a neat, tidy quick win by building a forecast and showing that we were safely within covenant.

Instead, I discovered we were headed toward breaching a covenant within two months. Not exactly the kind of early victory you dream of sharing with your CEO.

Still, it turned out to be valuable. It exposed weaknesses, sharpened urgency, and gave me a clear starting place.

The first thirty days, in the end, are about listening more than talking, understanding before acting. It’s the only way to make the next sixty days meaningful.

Days 30 to 60: Building an action plan that aligns finance with strategy

By the second month, the fog has usually cleared enough to start crafting an action plan, one that ties directly to the company’s strategic objectives. I never build that plan in isolation.

By now, I’ve had dozens of conversations across the business, and those conversations inform the roadmap more than anything else.

Finance must play a critical role in strategic decision-making. That means ensuring the business has good data to work with. Too often, companies collect plenty of data but lack a unified source of truth.

I once worked with a client whose CRM system captured client information and gross profit data, and they used these metrics to determine compensation for business developers.

The problem was that certain direct costs existed only in the finance system, not the CRM. Because the two systems weren’t connected, they were calculating profitability incorrectly and overpaying commissions.

That kind of disconnect can distort everything from pricing strategy to resource allocation.

This period is where I spend time understanding how the company analyzes profitability: not just at the corporate level but also across geographies, business units, product lines, and clients.

The questions I ask are simple: Is the data accurate? Are we making decisions based on fact or assumption? Are we misallocating attention because the numbers don’t tell the full story?

The second month is also when tax strategy becomes relevant. Most companies with CFOs have tax advisers, but that doesn’t mean their advice is being integrated into long-term plans.

In one company, leadership was preparing to make a water’s edge election for state tax purposes in California. What they hadn’t considered was that the business planned to expand globally.

The election could have had multi-year consequences that didn’t align with the company’s strategic ambitions. The tax advisers weren’t even aware of the expansion plans.

Moments like that reinforce the CFO’s role as a bridge between strategy and compliance, ensuring that one doesn’t undermine the other.

By this stage, I’m also building out the finance function’s roadmap, short- and long-term. I review the team’s skills and capabilities, the systems we’re using, and the operational processes we rely on.

I consider whether the team is structured effectively and whether people are actually happy in their roles. Sometimes alignment issues aren’t about talent gaps; they're about someone being placed in the wrong seat.

A minor restructuring (moving a team member from AP into AR, for example, or shifting someone closer to the invoicing process) can reinvigorate both performance and morale.

Finally, the second month is when KPIs become essential. Each company needs a subset of reliable KPIs that map directly to strategic goals.

You never want to stand in front of a CEO or board and say, “The data I presented last month was inaccurate.” That’s why this period is about refining KPIs, validating data sources, and ensuring everything we present is trustworthy.

Days 60 to 90: Executing, leading, and proving your impact

By the time I enter the final thirty days of this ninety-day framework, I shift from planning to execution. This is where leadership becomes visible and where people begin to form their long-term perception of how you operate as a CFO.

Execution begins with the team. I spend significant time ensuring the finance team understands the company’s strategy, the roadmap we’re building, and why we’re doing what we’re doing.

At the CFO level, you shouldn’t be handling day-to-day transactional work, but you absolutely must understand it. You need to trust the people doing that work, and they need to understand the “why” behind the changes you’re initiating.

In this stage, I dig deeper into budgeting and forecasting. I want to understand how the budget was created: Did the team simply roll forward last year’s budget with a modest increase, or was it built through analytical rigor?

Were acquisitions factored in? Product launches? Market expansion? R&D milestones? Understanding the current process is essential for rebuilding it later, because you will have to rebuild it.

This period is also when I begin laying the groundwork for new systems or technological upgrades. No one implements a new financial platform in ninety days, but you can identify what you need, map out requirements, and begin the process.

Similarly, if the team structure requires adjustments, this is when those conversations begin, not as punitive measures, but as ways to realign strengths and responsibilities.

One of the most important responsibilities in this phase is communicating the vision upward to the CEO and board. They need to understand exactly how the finance function will support the company’s strategic objectives.

Drawing from my experience as both CFO and CEO in public companies, I know that the board often views strategy differently from the CEO. They evaluate risk, scenario-plan, and think defensively.

Meanwhile, CEOs naturally think offensively. The CFO sits between them. It’s our job to help the CEO communicate the evidence behind major decisions and to help the board understand the underlying rationale.

By the end of the first ninety days, I monitor KPIs closely, track the early-stage initiatives, and communicate wins across the organization. Celebrating team accomplishments is essential.

It builds momentum and reinforces the idea that finance isn’t just a compliance function, it’s a strategic partner.

Challenges every CFO encounters in the first 90 days

No matter how many times I’ve stepped into the CFO role, the early challenges tend to rhyme. Cultural resistance to change is one of the most universal.

People will swear that the old processes work “just fine,” even when they don’t. They’ll question new systems, new reporting structures, or new levels of rigor. The only way I’ve ever been able to overcome that resistance is through relationship-building.

Those one-on-one meetings from the early days continue to pay dividends here.

When people understand that the changes you’re making aren’t arbitrary (that they’re tied to their own goals, that they relieve bottlenecks, or that they protect the company) they’re far more willing to engage.

Another frequent challenge is lack of stakeholder buy-in. This is why communication matters so much.

When someone doesn’t understand why a process is changing, or why you’re introducing new controls, you have to explain the rationale. You can’t assume the value is self-evident.

Sometimes, even with all the right steps, onboarding doesn’t go smoothly. I’ve lived that firsthand. I once accepted a short-term CFO role with a company that admitted they were disorganized, lacked proper policies, and had compliance concerns.

But as soon as I arrived, they pushed me almost exclusively into M&A execution, telling me to set aside the finance problems because the controller would handle them.

That was a mistake, one I should have resisted. Behind the curtain were major financial reporting issues, including fraud. I had taken my eye off the part of the business I was actually hired to safeguard.

Experiences like that are why I follow a methodical ninety-day process now. It protects both the company and the CFO.

Advice for others entering the CFO role

When people ask what I’d tell my younger self before starting my first CFO role, the answer is simple: take a deep breath. The sheer volume of information in a new role can feel overwhelming. But if you ground yourself in a systematic approach, you’ll find clarity.

Start with the org chart. Learn who the stakeholders are. Set up those one-on-ones early. And listen. Truly listen. You’ll learn more from those conversations than from any financial report.

If you’re a direct report to a new CFO, transparency is invaluable. Give your CFO everything you know about the company, including its risks, processes, pain points, and the details of the reports you manage.

They’re relying on you to help them understand the terrain. You will know more about the company at that moment than they do, and the faster you share that knowledge, the faster the whole organization benefits.

Why the first 90 days matter

If I were to summarize the ninety-day blueprint, it would look something like this, though I won’t put it in bullet points, because life as a CFO never fits into tidy lists.

The first month is about understanding the business and the people who run it.

The second month is about turning that understanding into a strategic plan.

The third month is about executing that plan and proving (not through presentations but through tangible progress) that you’re steering the organization toward stronger financial health and stronger alignment with its strategic goals.

You don’t get a second chance at a first impression. But if you approach the role with humility, curiosity, structure, and a willingness to listen, the first ninety days can build the foundation for long-term success, not just for you, but for the entire business.