In the first 30 days a fractional CFO diagnoses the financial health of the business, identifies cash drains and control weaknesses, and establishes a clear picture of the current position. By day 90 the business should have a redesigned management reporting framework, identified tax and funding opportunities, and a forward-looking financial model. Most engagements surface a material finding within the first 60 days.
- What should a fractional CFO achieve in their first 30 days?
- What changes in days 31 to 60 of a fractional CFO engagement?
- What we see in practice: what good looks like at the 90-day mark
- What financial systems and reporting does a fractional CFO typically implement?
- How does the relationship between the fractional CFO and the owner evolve in the first 90 days?
- What questions should you ask a fractional CFO candidate about their 90-day approach?
What should a fractional CFO achieve in their first 30 days?
The first 30 days of a fractional CFO engagement are diagnostic and foundational. The CFO's primary objective is to establish an accurate, unvarnished picture of the financial health of the business before proposing any changes or recommendations. The instinct to jump straight to solutions is natural but counterproductive at this stage.
The financial health check in the first 30 days has several components. The first is a review of the existing financial information: management accounts, the most recent annual accounts, bank statements, aged debtor and creditor reports, and payroll data. The CFO is looking for the accuracy of the existing reporting, the gaps in it, and the early indicators of financial risk.
Common findings at this stage include: management accounts that are three to four months behind actuals; debtor books where a significant proportion of the balance is more than 90 days old and some may be irrecoverable; margin erosion that is visible in the numbers but has not been articulated to the owner; recurring overheads that have not been reviewed and include subscriptions or costs that no longer serve the business; and bank facilities that are being used inefficiently or that carry terms that could be improved.
The second component is the first structured conversation with the owner about risk appetite, growth ambitions, and exit timeline. This conversation is as important as the financial review. A business owner who is building to sell in three years has very different financial priorities from one who is building a family business to pass on in fifteen. The CFO needs to understand this context before making any strategic recommendations, because the right financial architecture for one scenario is actively wrong for the other.
The third component is understanding the existing professional relationships: the accountant, the bookkeeper, the bank relationship manager, the tax adviser, and any other advisers involved in the business. The fractional CFO needs to work constructively with all of them and cannot afford to arrive with a presumption that existing arrangements are wrong. In practice, some are and some are not. The first 30 days is the time to assess, not to disrupt.
By the end of day 30, the CFO should be able to present the owner with a clear summary of: the current financial position including the specific areas of risk or opportunity identified; the state of the existing financial information and what needs to change; and a prioritised plan for the next 60 days.
What changes in days 31 to 60 of a fractional CFO engagement?
Days 31 to 60 shift from diagnosis to implementation of the most urgent priorities identified in the first month. This is typically the most intensive phase of the engagement because the CFO is building new infrastructure while also managing the ongoing strategic agenda.
The management reporting redesign is the most significant project in this phase. Most owner-managed businesses at the point of engaging a fractional CFO have management accounts that are backward-looking, produced monthly with a four to six week lag, and formatted in a way that reflects the accountant's preferences rather than the owner's decision-making needs. A CFO redesigns this reporting to be forward-looking, timely, and decision-relevant.
A well-designed management pack at this stage of business typically includes: a one-page financial summary for the month and year to date versus budget; a rolling 13-week cash flow forecast updated weekly; a revenue and margin analysis by service line or product rather than in aggregate; key debtor and creditor positions with ageing; and two or three operational KPIs that lead the financial performance rather than lag it. For a care home operator, those operational KPIs might include occupancy rate and care hours per resident. For a property business, they might include void rate and rent collection percentage. The specific KPIs depend entirely on the business model.
This phase also typically includes an initial review of the business's tax position with the tax adviser. In many owner-managed businesses, the interaction between corporate and personal tax, extraction strategy, and the long-term capital event tax position has not been reviewed holistically for several years. The CFO does not replace the tax adviser but directs the review agenda and ensures the strategic tax questions are being asked. Identifying a planning opportunity in month two of an engagement is a typical early value creation point.
The cash position receives close attention in this phase. If the first 30 days identified a cash drain from slow receivables or from an inefficient working capital cycle, days 31 to 60 begin the process of fixing it: introducing a formal credit control process, renegotiating supplier payment terms, or exploring whether an invoice discounting facility is appropriate.
What we see in practice: what good looks like at the 90-day mark
From experience as Group CFO to a £205m property and care group, and from working with owner-managed businesses across sectors at the fractional level, a clear pattern emerges for what a successful 90-day engagement looks like in practice.
At day 90, a well-run engagement will have delivered three concrete improvements. First, the owner receives a monthly management pack within seven working days of month end rather than six to ten weeks later. They can see their cash position forward for 13 weeks rather than looking only at yesterday's bank balance. They know their margin by service line rather than their overall margin. This sounds modest but is transformational for the quality of the decisions being made. An owner who previously managed by gut feel and bank balance is now managing with information that a properly-run £50m business would use.
Second, at least one material tax or funding opportunity has been identified and is in the process of being actioned. In practice, this is almost universal in businesses that have not had a CFO before. The opportunity may be a tax structuring point, a more competitive financing arrangement, an R&D tax credit claim that was being missed, or an inefficient extraction structure that is costing the owner significantly in personal tax. The CFO's value at day 90 is often measurable in a specific pound amount rather than an abstract improvement in process.
Third, the three foundational conversations have happened. The first is about risk appetite: how much risk can the owner genuinely absorb in the business and personally, and are the current funding and operational commitments appropriate to that level? The second is about exit timeline: is there a realistic horizon for a business sale, a management buyout, or a family succession, and if so what needs to be done financially to optimise the outcome? The third is about what keeps the owner awake at night: the specific financial anxieties that drive their behaviour and that, if addressed, would allow them to make better decisions. These three conversations define the strategic agenda for the rest of the engagement.
What does not look like a successful 90 days: a polished report that describes the business without proposing anything; a management pack that is redesigned but which the owner does not understand or use; or an engagement that has not yet surfaced a single finding that the owner was not already aware of. A fractional CFO at 90 days should have changed something consequential, not just described the current position eloquently.
For context on what ongoing fractional CFO engagement looks like beyond day 90, see our CFO advisory service page.
What financial systems and reporting does a fractional CFO typically implement?
The fractional CFO does not typically implement new accounting software during the first 90 days unless the existing system is genuinely inadequate. Changing accounting software is disruptive, time-consuming, and rarely the highest-priority change in the first quarter. The CFO will use what exists, assess it, and make a recommendation on systems after the diagnostic period is complete.
What typically does change in the first 90 days is the reporting layer on top of the accounting system. Most businesses at the £2m to £8m revenue range run on Xero, QuickBooks, or Sage. These systems are adequate for producing reliable accounting data. The gap is in the interpretation and presentation of that data for decision-making purposes. The CFO builds the reporting framework, typically in Excel or a basic BI tool, that transforms the accounting system output into a management pack that the owner and board can use.
The 13-week cash flow forecast is almost always built from scratch. Most businesses do not have a rolling cash flow forecast at this revenue stage. The CFO builds a model that connects the debtor collection cycle, the creditor payment cycle, payroll, and any capital expenditure or financing commitments into a single rolling view of the business's cash position. This model is reviewed weekly and updated by the bookkeeper or management accountant, with the CFO reviewing it and flagging any emerging issues.
If the business has existing management accounts that are produced monthly, the CFO works with the accountant or bookkeeper to restructure the chart of accounts so that costs are allocated in a way that enables margin analysis by service line or product. This is a technical accounting change that most bookkeepers can implement once the CFO has specified the logic, but that rarely happens without CFO direction.
For businesses with multiple entities, the CFO will also design or improve the intercompany reconciliation process to ensure that the group's consolidated position can be understood without ambiguity. This is essential groundwork for any future group restructuring, acquisition or exit process.
How does the relationship between the fractional CFO and the owner evolve in the first 90 days?
The quality of the relationship between the fractional CFO and the business owner is the single most important determinant of the engagement's success. In the first 90 days, this relationship goes through a predictable and important transition.
In the first 30 days, the relationship is necessarily cautious on both sides. The CFO is gathering information and forming views. The owner is assessing whether they have made the right appointment and whether this person understands their business. The CFO should be asking more questions than making statements at this stage. An experienced CFO who arrives in day one making confident pronouncements about what is wrong and what needs to change is either genuinely exceptional or dangerously overconfident. It is usually the latter.
In days 31 to 60, the relationship shifts as the CFO begins presenting findings and recommendations. This is often the most uncomfortable phase for both parties. The CFO is delivering an honest assessment of things that are not working well. Some owners receive this openly; others become defensive. The CFO's job is to be clear, specific, and constructive while not softening the message to the point where it loses its usefulness. An owner who has been told their debtor book contains £150,000 of potentially irrecoverable debt for the first time needs that information delivered clearly, not wrapped in so many qualifications that the urgency is lost.
By day 90, the relationship should have reached a point of genuine mutual trust. The owner should feel confident bringing any financial question or concern to the CFO without feeling judged or exposed. The CFO should feel confident challenging the owner's assumptions without the conversation becoming adversarial. This trust is built through consistent, honest, high-quality communication in the first 90 days. It is very difficult to recover if the first 90 days are spent managing the relationship rather than improving the business.
What questions should you ask a fractional CFO candidate about their 90-day approach?
The questions you ask a fractional CFO candidate about their 90-day approach tell you more about the quality of the practitioner than any credentials or testimonials. A genuine CFO has a specific, well-articulated view of how they approach the first quarter of an engagement. A rebranded management accountant offers generalities.
Ask them to describe the first thing they do when they arrive and why. A credible answer involves understanding the financial data before proposing any changes, having the foundational conversation with the owner before drawing conclusions, and meeting the existing finance team and advisers to understand the current arrangements. A weak answer involves promises about what they will deliver before they have assessed what the business actually needs.
Ask what they would prioritise if they found that the management accounts were six weeks late, the debtor book had significant ageing, and the business was approaching its bank facility limit simultaneously. The answer reveals how the CFO triages competing priorities and whether they understand the distinction between urgency and importance.
Ask for a specific example of a material finding they surfaced in the first 90 days of a previous engagement and what happened as a result. The specificity of the answer is the signal. Amounts, decisions, outcomes: a genuine CFO remembers these because they were consequential. Vague statements about improving management reporting are not the same thing.
Ask how they measure their own success at the end of the first 90 days and what they would do if they had not yet made a measurable impact. This question tests accountability and the willingness to be evaluated against outcomes rather than activities.
Frequently asked questions
How quickly can a fractional CFO make an impact?
Most fractional CFO engagements surface a material finding, whether a tax opportunity, a cash risk, or a reporting gap, within the first 30 to 60 days. Measurable financial impact such as improved cash flow from debtor management or a tax saving from a structuring recommendation typically materialises within 60 to 90 days. The speed depends on the complexity of the business and whether the foundational financial information is available for review from the outset.
What information does a fractional CFO need on day one?
On day one, a fractional CFO needs access to the most recent annual accounts, management accounts for the current year to date, bank statements, aged debtor and creditor reports, details of existing financing arrangements and covenants, the current payroll run, and any recent correspondence with HMRC or lenders. Access to the accounting system (Xero, QuickBooks, Sage) and to the bookkeeper and accountant enables the diagnostic to proceed efficiently.
Should a fractional CFO change the accountant or bookkeeper?
Not necessarily and not immediately. The first 90 days is for assessment. A fractional CFO will evaluate whether existing advisers and team members are performing their functions well. In some cases, a change is warranted because the current provider is not equipped for the business's current complexity. In many cases, the existing arrangements are adequate and simply need better direction from CFO-level input. A CFO who arrives recommending immediate changes to existing advisers before assessing the situation objectively should be questioned.
What KPIs should a fractional CFO implement first?
The first KPIs implemented should be cash-based: the 13-week cash flow forecast and current debtor ageing. These are the most important early-warning indicators for any business. After that, gross margin by service line or product, revenue against budget, and one or two sector-specific operational KPIs that lead the financial performance. For care homes, occupancy rate. For property, void rate. For professional services, utilisation and realisation. The specific set depends entirely on the business model.
How do you measure the success of a fractional CFO in the first 90 days?
Success at day 90 should be measured against the specific outcomes agreed at the outset of the engagement: whether management reporting exists and is timely, whether at least one material finding has been identified and actioned, whether the owner has greater visibility of their financial position than before, and whether the specific financial challenges that motivated the hiring decision have been addressed. A well-structured engagement includes a 90-day review conversation explicitly designed to evaluate these outcomes.
A fractional CFO's first 90 days should deliver a financial health audit, a redesigned management reporting framework, at least one material finding of tax or cash significance, and the three foundational conversations with the owner that shape the entire strategic agenda. The 90-day mark is not the end of the value-creation process; it is the point at which the foundations are in place for the ongoing advisory relationship to be genuinely productive. Businesses that find the first 90 days produces nothing new should question whether the right appointment has been made.
To discuss how our fractional CFO engagement would approach your first 90 days, contact us through the Key Ledgers Global contact page.
Author: Bharat Varsani FCCA, forensic expert witness, Group CFO to a £205m property and care group, Key Ledgers Global.
- CIMA: Management Reporting Effectiveness in UK SMEs, 2025
- ICAEW: Finance Function Maturity Model, 2025
- FRC: Corporate Governance and Financial Reporting Standards, 2025