Fractional Finance Director for SaaS Exit Preparation
How a fractional finance director gets a UK SaaS company exit-ready: clean FRS 102 accounts, a reconciled MRR schedule, and a data room buyers can trust.
Your financial data has to tell a good story about your business, and at exit that story is the only one a buyer actually trusts. You can talk brilliantly about where the company is heading; they go to the numbers anyway, and believe what they find there over anything you say.
A company's finances read like a diary. Get the story straight and the conversation shifts from "how risky is this?" to "how big can this get?" A fractional finance director makes that story hold up before anyone is looking, without the cost or lead time of a full-time hire for a deal that may still be 12 to 24 months away.
Companies that plan ahead add hundreds of thousands to their exit value.
What buyers examine
| What they check | What good looks like |
|---|---|
| Revenue quality | Genuinely recurring; growth led by expansion, not price rises |
| Customer concentration | No single customer worth more than 10% to 15% of ARR |
| Retention | At least 90% (churned ARR YTD ÷ opening ARR) |
| Gross margin | 70% to 80%, with costs correctly in cost of sales |
| Deferred revenue | Carried correctly and reconciling to billing records |
The SaaS due diligence checklist is longer, but scrutiny concentrates here. Underneath every check sits trust: hesitate on a question you should be able to answer and a buyer doubts everything else you have shown them.
What a good story actually looks like
The patterns below show up consistently in businesses that exit well. None of them happen in the last quarter before a sale.
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Gross margin climbing steadily to 70-75% over 12 to 24 months. Not a jump from 20% to 80% in a few months, because that just signals you reclassified costs to flatter the picture. Buyers want to see margin improving as the business gains scale, with hosting, customer success and third-party tools sitting in cost of sales where they belong.
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Expansion revenue growing as a share of new ARR. Past £3m to £4m ARR you cannot keep growing on new logos alone. Upsells, cross-sells and seat expansion contributing meaningfully are the strongest signal that customers find ongoing value in the product.
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Marketing unit economics improving across quarters. CAC trending down, payback period shortening, revenue per employee trending up. Most unit economics are subjective - CAC especially can be made to look like almost anything depending on what you load into it - so what counts is the trend across quarters, not a snapshot. The two numbers you cannot massage are your monthly revenue movement and your gross margin, and once those are clean, the rest follow.
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Sales targets met with at least 50% ARR growth year on year if you are bootstrapped or angel-funded. For VC-backed businesses the bar is higher, closer to 2x in 12 months at the earlier stages. Hitting your own forecast over several years is more convincing than a single explosive quarter.
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Founder salary sitting in G&A, not cost of sales. This is the test buyers use to check whether the business can run without you. If your own time is propping up gross margin, the company has a dependency problem, and that compresses the multiple.
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Profitability reached, or the path to it consistent and visible. Months at breakeven, then months above, with operating costs growing slower than revenue. Investors accept burn while you scale; they do not accept a business that cannot show the discipline to get there.
Why fractional rather than full-time
| Full-time CFO | Fractional finance director | |
|---|---|---|
| Cost | £180,000 to £280,000 all-in | £3,500 to £5,000 a month |
| Time to contribute | 4 to 6 months to recruit | Immediate |
| Commitment | Permanent | Scales up and down |
You buy the outcome rather than the hours. Full breakdown in our fractional CFO cost guide.
The 90-day path
| Phase | Focus | What gets done |
|---|---|---|
| Days 1-30 | Clean-up | Chart of accounts split by department; revenue recognition under FRS 102; billing and CRM reconciled to Xero; prior periods locked |
| Days 31-60 | Metrics & model | Customer-level MRR waterfall; gross margin by product line; cohort analysis; bottom-up, formula-driven forecast |
| Days 61-90 | Data room & narrative | MRR split by top-five customers, region and currency; financial narrative written for the Information Memorandum |
Two rules carry the most weight. Backed by clean history, opening at 8x or 9x ARR and negotiating down is sensible - opening at 20x signals you do not understand your own business. And the same metric must never show two different numbers in two tabs, because that single inconsistency makes an investor doubt the whole model. More on how buyers stress-test these numbers in our guide to SaaS valuation multiples.
When to start
12 to 24 months before you go to market. Wait until inbound interest lands or an adviser is already running the process and you are reactive, with gaps that are harder to explain and easier for a buyer to use against you on price. Most exits also draw on both a finance director (operational) and a CFO (strategic); our comparison of the two roles explains which one fits when.
If an exit is on your agenda within the next two years, it starts today. It is the heart of what we do at ScaleWithCFO.