How do you prepare your finance organization for an M&A deal?

  • Posted by: Frédérique Pardon
Preparing your finance organization for an M&A deal means getting your financial data, processes, and reporting structures into a state where they can withstand intense external scrutiny while your team continues to run the business. The earlier you start, the smoother the process. Below, we answer the most common questions finance leaders face when a deal is on the horizon.

What does your finance team need to handle before an M&A deal closes?

Before an M&A deal closes, your finance team needs to ensure that financial records are accurate, complete, and audit-ready, that reporting processes are documented, and that key personnel are aligned on their roles during the transaction. The goal is to eliminate surprises that could delay the deal or reduce your valuation.

In practice, this means working through several workstreams simultaneously. Your team needs to close any gaps in historical financial statements, reconcile intercompany balances, and make sure your management reporting reflects reality rather than approximations. If your accounting is partially manual or your forecasting relies on spreadsheets that only one person understands, those weaknesses will surface during due diligence.

Beyond the numbers, documentation matters just as much. Contracts, tax filings, debt agreements, and compliance records all need to be organized and accessible. A deal room that is well structured from the start signals to the other party that your organization is professionally run, which directly supports your negotiating position.

How does due diligence change the demands on your finance organization?

Due diligence dramatically increases the workload on your finance team by adding a parallel stream of external requests on top of normal operations. Acquirers and their advisors will ask for detailed financial information across multiple areas simultaneously, often within tight deadlines, and the quality of your responses directly influences deal confidence.

The key shift is that your finance function moves from managing internal reporting to managing external validation through due diligence. Every figure you provide will be tested, cross-referenced, and questioned. Cash flow statements, profitability trends, debt schedules, and tax positions all come under scrutiny. If your internal processes are not clean, the due diligence phase will expose that quickly.

There is also a coordination burden. Someone on your team needs to own the data room, manage incoming questions, and ensure that responses are consistent and timely. Without a clear owner, requests fall through the cracks and the process stalls. Many finance organizations underestimate how much bandwidth due diligence actually consumes.

What financial data do acquirers typically request in an M&A process?

Acquirers typically request three to five years of audited financial statements, detailed management accounts, cash flow analysis, debt and working capital schedules, tax compliance records, and forward-looking financial projections. They want a clear picture of historical performance, current financial health, and future earning potential.

More specifically, expect requests across these areas:

  • Historical financials: Profit and loss statements, balance sheets, and cash flow statements, ideally audited
  • Revenue analysis: Breakdown by customer, product, geography, and contract type
  • Cost structure: Fixed versus variable costs, one-off items, and normalized EBITDA
  • Working capital: Receivables, payables, and inventory trends over time
  • Debt and liabilities: Loan agreements, contingent liabilities, and off-balance-sheet commitments
  • Tax position: Filed returns, open assessments, and deferred tax positions
  • Forecasts and budgets: Current year budget versus actual, and a multi-year financial model

The more organized and consistent this data is, the more credibility you build with the acquirer. Gaps or inconsistencies between documents create questions that slow negotiations and can lead to valuation adjustments.

Should you bring in a fractional CFO or interim financial specialist for an M&A deal?

Yes, bringing in a fractional CFO or interim financial specialist for an M&A deal is often the right move, particularly when your current finance team lacks M&A experience or is already operating at full capacity. A specialist adds bandwidth, deal expertise, and an independent perspective without the cost of a permanent hire.

M&A processes are not standard finance work. They require specific skills: financial modeling for valuation, experience with due diligence processes, knowledge of deal structures, and the ability to communicate credibly with investors, acquirers, and their advisors. If your existing CFO or controller has not been through multiple transactions, the learning curve during a live deal is a real risk.

A fractional or interim specialist can step in at any phase, from preparing your organization before the process starts to managing the data room during due diligence or supporting integration planning after closing. The engagement can be scaled to exactly what the situation requires, which makes it a practical solution for growing companies that do not need a full-time M&A resource year-round. You can explore our expert services for M&A transactions to understand what this looks like in practice.

How do you keep day-to-day finance operations running during an M&A process?

Keeping day-to-day finance operations running during an M&A process requires deliberate capacity planning before the deal begins. The most common mistake is assuming your existing team can absorb the additional workload without something else suffering. It cannot, and financial reporting quality is usually the first casualty.

The most effective approach is to separate responsibilities clearly. Assign specific team members to the deal workstream and protect others from being pulled into it. If your finance team is small, this may mean bringing in temporary support for routine tasks like bookkeeping, payroll processing, or monthly close activities so that your senior people can focus on the transaction.

Communication rhythm also matters. Management still needs accurate financial information to run the business during the deal period. If your monthly reporting slips or forecasts become unreliable because everyone is focused on due diligence, that creates operational risk at exactly the moment when leadership attention is already stretched.

What are the most common finance-related reasons M&A deals fall through?

The most common finance-related reasons M&A deals fall through are undisclosed liabilities discovered during due diligence, unreliable financial data that undermines trust in the numbers, valuation gaps driven by poor financial modeling, and working capital disputes at closing. Each of these is preventable with the right preparation.

Looking at each one more closely:

  • Hidden liabilities: Tax exposures, pending litigation, or off-balance-sheet commitments that were not disclosed upfront erode buyer confidence and often lead to price reductions or deal termination
  • Unreliable reporting: When historical financials contain inconsistencies or management accounts do not reconcile with statutory accounts, buyers question the quality of the entire business
  • Valuation disagreement: Sellers who have not stress-tested their own valuation assumptions are often surprised by buyer adjustments to EBITDA or working capital, which can make the gap unbridgeable
  • Overpaying or undervaluing: On the buyer side, deals fail to deliver value when the investment thesis was not rigorously tested before committing, leading to post-deal disappointment rather than deal termination
  • Integration underestimated: Some deals close but effectively fail afterwards because financial and operational integration was not planned before signing

The underlying pattern is consistent: deals that fail financially almost always trace back to preparation gaps that existed before the process started.

How we support your finance organization through an M&A deal

We guide companies through M&A from a CFO perspective, which means our focus is not just on closing the deal but on making sure the deal makes sense and delivers real value. Our approach is structured around five phases, starting with a Finance Maturity Assessment that establishes where your finance organization stands before the process begins. This baseline shapes everything that follows.

Depending on where you are in the process, we can support you with:

  • Assessing deal readiness and identifying gaps in your financial data and reporting before you go to market
  • Building and stress-testing the financial model and investment thesis
  • Managing acquisition due diligence, including financial statements, cash flow, debt structure, and risk assessment
  • Providing an embedded fractional CFO or interim financial specialist to manage the deal workstream while your team keeps operations running
  • Supporting post-deal integration to ensure the transaction translates into measurable performance improvements

Our professionals have an average of 15 or more years of experience and have been through multiple transaction cycles across different sectors. You get not just one specialist, but access to the collective knowledge of our entire team. If you are preparing for an M&A process and want to understand where your finance organization stands today, contact us to discuss your situation and we will give you an honest assessment of what needs to happen next.

Frequently Asked Questions

How early should we start preparing our finance organization before going to market?

Ideally, you should begin preparing 12 to 18 months before you expect to go to market. This gives you enough time to close gaps in historical financials, address any accounting inconsistencies, and build a track record of clean, reliable reporting that acquirers can rely on. Starting too late — for example, only a few months out — means you are fixing problems under time pressure while simultaneously managing a live deal process, which significantly increases execution risk and can compress your valuation.

What is a normalized EBITDA and why does it matter so much in M&A?

Normalized EBITDA is your earnings before interest, taxes, depreciation, and amortization, adjusted to remove one-time, non-recurring, or non-operational items that distort the true underlying profitability of the business. It matters in M&A because acquirers typically apply a valuation multiple directly to this figure, meaning that every euro of unsupported or poorly documented EBITDA adjustment can translate into a significant reduction in your deal value. Common adjustments include owner compensation above market rate, one-off legal costs, or restructuring charges — all of which need to be clearly documented and defensible during due diligence.

What is a data room and how should we set one up for an M&A process?

A data room is a secure, organized digital repository where you store and share all financial, legal, and operational documents with potential acquirers and their advisors during due diligence. Setting one up effectively means organizing documents into a logical folder structure — typically mirroring the categories acquirers will request, such as financials, tax, contracts, and HR — and ensuring that all documents are current, clearly labeled, and access-controlled. Platforms like Datasite, Intralinks, or even SharePoint can serve this purpose; what matters more than the tool is the discipline with which the room is maintained and the speed at which new requests are fulfilled.

How do working capital disputes at closing actually happen, and how can we avoid them?

Working capital disputes arise when the buyer and seller disagree on what the "normal" level of working capital in the business should be at the point of closing, which directly affects the final price paid. They typically happen because the working capital target was not precisely defined in the purchase agreement, or because the seller's accounting policies for items like accruals, receivables aging, or inventory valuation differ from the buyer's expectations. To avoid them, agree on a clear working capital definition and target early in negotiations, ensure your internal accounting is consistent with how you have presented historical working capital, and consider engaging an advisor to run a pre-close working capital analysis before the final accounts are prepared.

What financial metrics should we proactively clean up if we know a deal is coming?

Focus first on the metrics acquirers scrutinize most heavily: EBITDA and its adjustments, revenue quality and concentration, working capital trends, and free cash flow conversion. Beyond those headline numbers, review your intercompany eliminations, ensure your deferred revenue and accruals are consistently applied, and reconcile any discrepancies between your management accounts and statutory filings. If any single customer accounts for more than 20–25% of revenue, be prepared to address concentration risk proactively with supporting data on contract terms, renewal history, and relationship depth.

Can a buyer use findings from due diligence to renegotiate the price after we have agreed on a valuation?

Yes, and this is more common than sellers expect. If due diligence uncovers undisclosed liabilities, inconsistencies in the financial data, or EBITDA adjustments that reduce normalized earnings, buyers will use those findings as leverage to renegotiate price, request indemnities, or adjust the deal structure — for example, by introducing an earnout or increasing the escrow amount. The best defense is a thorough pre-deal readiness review that surfaces these issues on your own terms before the buyer finds them, giving you time to resolve or properly disclose them rather than being caught off guard mid-process.

What should we do immediately after an M&A deal closes to protect the financial value of the transaction?

The first 90 days post-close are critical for protecting deal value and should be planned before signing, not after. Immediately after closing, focus on establishing a unified financial reporting framework, identifying and resolving any integration risks flagged during due diligence, and ensuring that key finance personnel on both sides understand their roles in the combined entity. Synergy targets agreed during the deal need to be translated into specific, measurable actions with owners and timelines — deals most commonly fail to deliver value not because the strategy was wrong, but because integration execution was treated as an afterthought.

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