Refinancing Due Diligence: How It Differs from an Acquisition FDD

Most people assume financial due diligence only happens when something is being bought. It doesn't. A perfectly stable business - very often a private equity portfolio company staring down a covenant test or simply chasing cheaper money - can commission a full diligence exercise for one reason alone: to replace its existing debt with a new facility. The analytical toolkit is almost identical to an acquisition review. What changes, and changes profoundly, is who reads the report and what they are afraid of. Miss that shift and you will write a technically competent report that answers the wrong question.

Who Is Actually Reading the Report

In an acquisition FDD, the report ultimately serves a buyer deciding whether, and how much, to pay. In a refinancing, the audience is a lender - or a syndicate of them - deciding whether to extend credit and on what terms. That single change of reader reframes everything.

A buyer participates in the equity upside. If the business grows faster than expected, the buyer captures it, so a buy-side report naturally spends time on growth potential, market position and the value of the synergies or improvements a new owner might unlock. A lender captures none of the upside. Their return is capped at the interest coupon and the return of principal. So their entire mental model is downside protection: can this business reliably service the debt and repay it, whatever the weather?

The mantra that separates lender diligence from buyer diligence: a buyer asks "how good can this get?", a lender asks "how bad can this get before I don't get paid back?" Every emphasis in the report flows from that one difference.

What Gets More Emphasis

• Cash-flow reliability over growth potential. Lenders care most about consistent, predictable free cash flow. A business with modest but rock-steady cash generation is often a better credit than one with higher but volatile growth - the inverse of how a growth-focused equity buyer might rank the same two profiles.
• Covenant headroom and structuring. Because the whole point of the exercise is arranging new debt terms, covenant analysis moves from a supporting check to the centre of the report. The question is not just "does the base case work?" but "what leverage and coverage can this business sustain through a realistic downside?"
• Cash conversion of EBITDA. Lenders scrutinise how reliably reported earnings become actual cash available for debt service. A business with strong headline EBITDA but persistently heavy working capital consumption is a weaker credit than the top line suggests. The gap between EBITDA and operating cash flow is where a lender's anxieties live.
• The maintenance capex floor. Discretionary growth capex can be switched off in a downturn; maintenance capex cannot. Lenders want the non-negotiable spend that competes with debt service for the same cash.

A Worked Example: Testing Debt Service Under Downside

The single most useful thing a lender-facing report does is stress the base case and show what happens to coverage. Take a business the sponsor wants to refinance with a new €40m term loan at 8%, amortising, so annual debt service (interest plus scheduled repayment) is roughly €6.0m. The key credit metric is the debt service cover ratio (DSCR) - cash available for debt service divided by debt service - and lenders typically want it comfortably above 1.0x, often 1.25x or higher.

The base case looks fine at 1.33x. The downside is where the report earns its fee: a 15% revenue fall pushes DSCR below 1.0x, meaning the business cannot cover its debt service from its own cash - and note that working capital gets worse in the downside, not better, because the drawdown consumes cash. That combination is exactly what a lender needs to see quantified before committing. The number itself matters less than the shape: how much cushion sits between the base case and a breach, and what has to go wrong to get there.

What Gets Less Emphasis

• Purchase price allocation and goodwill. Irrelevant. There is no acquisition, so no new acquisition accounting to support, and no enterprise-to-equity bridge to build for a buyer.
• Synergies and value creation. A lender does not price in a new owner's improvement plan. If anything, they will haircut aggressive management projections rather than reward them.
• Deal structuring points in an SPA. There is no share purchase agreement. The legal centre of gravity is the credit agreement and its covenant package, not a sale-and-purchase negotiation.
• Customer concentration - same data, different lens. Customer concentration still matters, but the framing shifts from "does this affect the price a buyer should pay?" to "does this create default risk over the loan term?" The underlying schedule is identical; the conclusion you draw from it is not.

Why the Timing and Posture Are Different

Acquisition diligence usually catches a business at a relatively strong moment - sellers time exits for favourable conditions. Refinancing diligence is frequently triggered by a specific, identifiable pressure point:

• An approaching covenant test the business is likely to fail.
• A maturity wall - existing debt coming due that must be replaced.
• Opportunistic timing - market conditions making a refinancing attractive on rate or terms.

The first two mean you are often analysing a business under some degree of financial strain, even when it is nowhere near genuinely distressed. That is a materially different starting posture from a healthy company being sold at the top of its cycle, and it changes the tone of the work: you are looking for reasons the credit holds up, and being honest about the pressure points, rather than helping a buyer find value.

How the Report Structure Shifts

The bones of an FDD report - quality of earnings, net debt, working capital, cash flow - survive intact, but their weighting changes. A helpful way to think about it:

The takeaway: the same evidence gets re-pointed at a credit question. You are not learning a new discipline so much as flexing an existing one toward downside and cash rather than value and upside.

In the Interview

This is a strong topic to raise or handle well, because it shows you understand that TS work extends beyond M&A. If asked "how would refinancing diligence differ from a normal FDD?", a confident answer sounds like this:

"The financial analysis is largely the same - quality of earnings, net debt, working capital, cash flow - but the audience changes from a buyer to a lender, and that reframes everything. A buyer shares in the upside, so they care about growth. A lender's return is capped, so they only care about downside: can the business service and repay the debt through a reasonable stress. So I'd put much more weight on cash-flow reliability and how cleanly EBITDA converts to cash, because heavy working capital swings weaken a credit even with strong reported earnings. I'd make covenant and debt-service-cover analysis central rather than a side check, and I'd model a downside - say a 15% revenue fall - to see how much headroom sits between the base case and a covenant breach, remembering working capital usually gets worse in a downturn, not better. Things that dominate an acquisition, like PPA, goodwill and synergies, basically fall away, because ownership isn't changing. The real skill is recognising early which audience you're serving, because that decides what to emphasise."

That answer lands because it names the reason for each shift - the capped return - rather than just listing differences.

Common Mistakes and Red Flags

• Writing a buy-side report for a lender. Leading with growth and upside for an audience that only cares about downside is the fundamental error.
• Testing only the base case. Without a stressed DSCR or covenant sensitivity, you have not answered the lender's actual question.
• Assuming working capital improves in a downturn. A revenue drawdown often consumes cash - model it moving against you.
• Ignoring the maintenance capex floor. Growth capex can be cut; the minimum spend to keep the business running competes with debt service and must be quantified.
• Carrying over acquisition workstreams that don't apply. Spending time on PPA, goodwill or synergies signals you haven't grasped that ownership isn't changing.
• Missing the posture. A business refinancing under covenant or maturity pressure is not a healthy seller at the top of its cycle - read the trading through that lens.

Why This Is Worth Understanding

Refinancing due diligence is a genuine, recurring source of TS-adjacent work, especially at firms with strong debt-advisory practices, and it rewards analysts who can flex their financial analysis toward a credit lens rather than only ever thinking like an equity buyer's advisor. It is also one of the cleanest ways to demonstrate range in an interview, because it proves you understand that the same numbers answer different questions depending on who is asking. Recognising early which audience you are actually serving - buyer or lender - shapes almost every judgement call that follows. Learn to switch that lens deliberately, and you become useful across a far wider slice of the transaction market than the analyst who only knows how to help someone buy.

The Transaction Services Interview Programme (€119.99, one-time) includes a lender-lens module - DSCR and covenant sensitivity modelling, cash-conversion analysis, and the "buyer versus lender" framing interviewers use to test your range. Enrol today.