One of the most common situations we encounter is a business owner who has found a credible investor or lender, agreed on terms in principle, and then hit a wall during due diligence. The financials are not investor-ready. The numbers are technically accurate, but they are not organised, explained, or presented in a way that gives a sophisticated third party confidence. The deal slows down, sometimes stalls entirely.

So how can businesses prepare their financials for investment or funding in a way that actually holds up under scrutiny? The answer is not complicated, but it does require discipline and a reasonable lead time. In our experience, the businesses that sail through funding rounds are the ones that run their finance function properly month to month — not the ones who scramble to produce three years of clean numbers in the fortnight before a meeting.

Below is how we approach it, and what we would tell any SME owner who has a funding conversation on the horizon.

Statutory accounts are a compliance output. They satisfy Companies House and HMRC, but they are not designed to help a lender or investor understand how the business actually works. Management accounts are.

A well-structured set of monthly or quarterly management accounts will show revenue by product or customer segment, gross margin, fixed versus variable cost structure, EBITDA, and working capital movement. That is the kind of information a funder wants to see — not just a balance sheet and a profit and loss account that were filed nine months after the year end.

If your management accounts do not already exist, or they exist but are inconsistent in format, the first step is to fix that before you approach anyone for capital. At a minimum, a funder will want to see 12 to 24 months of management accounts before they will form a view on the business. The further back you can go with clean, consistent numbers, the better the story you can tell.

We would also recommend agreeing on a consistent accounting policy across all periods — how you recognise revenue, how you treat deferred income, how you classify costs. Inconsistency between periods is a red flag, even when the underlying numbers are fine. As PwC's year-end accounting guidance notes, topical issues around revenue recognition and cost classification are among the areas most likely to draw scrutiny from sophisticated reviewers.

Poor data quality is one of the most common reasons due diligence takes longer than expected. Misclassified transactions, inconsistent category names, bank accounts that have not been reconciled for months, inter-company loans that are unexplained — these are all things that create questions. Questions slow things down. Enough questions, and the funder starts to wonder what else they might find.

The practical checklist here is straightforward:

• Bank reconciliations up to date — every account, every month.
• Debtors and creditors confirmed — aged debtors report reviewed, bad debts written off or provisioned.
• Accruals and prepayments posted correctly — income and costs in the right period.
• Fixed asset register maintained — especially if the business has capitalised significant expenditure.
• Director loan accounts documented — the balance, the interest position, and what it represents.
• VAT returns reconciled to the P&L — discrepancies here raise questions about the completeness of income.

If your accounting software is cloud-based — Xero, for example — a lot of this should be happening in real time. If you are still running spreadsheets or using desktop software that nobody else can access, this is also a good point to consider a migration. A funder's accountant or due diligence team will want to get into your data, and cloud platforms make that significantly easier to manage in a controlled way.

Historical financials tell the story of what happened. A credible forecast tells the story of why the investment makes sense. Both matter, and both will be tested.

In our experience, the forecast is where a lot of businesses fall short — not because the underlying assumptions are wrong, but because the model is not structured in a way that allows scrutiny. A lender or investor will want to understand your revenue drivers, your cost assumptions, your cash conversion cycle, and your working capital requirements. They will want to see the numbers flex — what happens if revenue is 20% lower than plan? Can the business still service the debt?

A robust financial model for a funding round typically includes:

• A three-year profit and loss forecast, built from revenue-driver assumptions (units, pricing, conversion rates), not a top-line number with costs backed out of it.
• A monthly cash flow forecast for at least 18 months, showing the timing of receipts and payments, not just the net position.
• A sensitivity analysis — best case, base case, downside — so the funder can see the risk range.
• A clear articulation of how the capital will be deployed and what it will generate.

The businesses that present this well tend to be the ones already running KPI dashboards and monthly management reporting as a matter of course. The forecast is not a separate exercise — it is a natural extension of how they already run the business.

Banks and alternative lenders tend to focus on debt serviceability — can the business generate enough free cash flow to meet repayments with a reasonable margin of safety? They will look at EBITDA relative to proposed debt, working capital trends, and the quality of your debtor book. The British Business Bank's 2025 finance market data highlights that lending approval rates are sensitive to the quality of financial information presented — businesses that arrive with well-organised accounts and a credible cash flow model tend to fare better than those relying on statutory accounts alone.

Equity investors — angels, VCs, strategic investors — are primarily interested in growth trajectory and scalability. They want to see that the unit economics work, that the gross margin supports the operating model, and that the management team understands its numbers. They will probe the assumptions behind the forecast more than the historical figures.

In both cases, what signals credibility is not perfection — every business has lumpy months and messy corners — but the ability to explain the numbers clearly and stand behind them. If a question comes up in due diligence and the response is "I'm not sure, I'll need to check with our bookkeeper," that is a problem. The business owner should understand their financials well enough to have an informed conversation, even if the detail sits with their accountant.

This is perhaps the most practical point of all: start early. If there is a funding round on the horizon — even informally, even at the "we might look at this in the autumn" stage — the time to start preparing is now, not when a term sheet lands on the table.

Realistically, getting a business properly investor-ready from a standing start takes three to six months if the foundations are weak. That means: getting management accounts into a consistent format across prior periods, cleaning up the data in your accounting system, building a financial model, and producing a narrative document that contextualises the numbers.

If you are already running monthly management accounts and your books are clean, the preparation time is considerably shorter — perhaps four to six weeks to produce a due diligence pack and financial model. But that assumes the foundations are already in place.

One thing worth knowing: Companies House filing requirements — and the size thresholds that determine what you must file — are relevant here too. Funders will cross-reference your filed accounts against what you are presenting in due diligence. If there are material differences without clear explanation, it creates friction. For more on what the filing requirements actually entail, see our guide on companies house services.