If an interviewer hands you a cross-border M&A case involving a German target, they are rarely testing whether you can add up an enterprise value bridge — they're testing whether you know that a "straightforward" acquisition changes shape once German tax rules, co-determination law, and integration risk enter the picture. Here's a step-by-step approach you can use to answer that kind of question out loud, with a full worked example to check your logic against.
This article assumes you already know why those forces exist. If you do not, start with the background piece on what makes cross-border M&A in Germany so complex and come back here for the valuation mechanics.
Step 1: Start from the standalone valuation
Anchor on the target's standalone enterprise value — typically from a DCF or comparable companies analysis, the same way you would for any deal. This is your baseline before any DACH-specific adjustments. Don't skip stating this explicitly; interviewers want to see that you're not conflating the target's intrinsic value with deal-specific frictions from the start.
Step 2: Identify the tax leakage
Ask whether the target owns German real estate. If so, flag that a qualifying transfer triggers Grunderwerbsteuer (real estate transfer tax, roughly 3.5%-6.5% depending on the state) — a real cash cost that should be subtracted from your value bridge, not buried in a generic fees line. This is also the moment to mention the asset-deal-versus-share-deal trade-off: an asset deal can offer a stepped-up tax basis but doesn't avoid RETT, while a share deal avoids re-transferring individual assets but carries over legacy liabilities.
Step 3: Quantify the co-determination delay
If the target has more than 2,000 German employees, flag that the Mitbestimmungsgesetz requires a 50/50 parity supervisory board, and that works council consultation is legally required before major restructuring. Translate that into a number: estimate how many months of delay the consultation process adds, and multiply by the monthly value of the synergies that delay pushes back. This step is what separates a candidate who has just heard the word "Mitbestimmung" from one who can actually price it.
Step 4: Risk-adjust the synergies
Apply a discount to your projected synergies to reflect cross-border cultural integration risk — differences in management style, decision speed, and disclosure norms between acquirer and target. State the discount as an assumption (for example, a 20% haircut) rather than presenting it as a precise, derived figure; interviewers know this number is judgment-based, and they want to see you treat it that way.
Step 5: Net everything into an adjusted deal value
Combine the pieces: standalone enterprise value, minus the RETT leakage, minus the co-determination delay cost, plus the risk-adjusted synergies. The result is a defensible anchor for an opening bid — one that shows you've priced in the real, jurisdiction-specific costs of the deal rather than just modeling the target in isolation.
See it worked through with numbers
Case 70: Cross-Border M&A: DACH Complexity runs through this exact framework with a full numerical example — a $400m standalone enterprise value adjusted for RETT leakage, a co-determination delay cost, and risk-adjusted synergies to arrive at a final adjusted deal value. It's the fastest way to see how the qualitative story above turns into numbers you can actually say out loud in an interview.
For related deal-mechanics questions, Case 66: M&A Due Diligence Priorities covers what to check first before you even get to structuring a bid, and Case 64: Cash vs. Stock Consideration covers a different lever acquirers use to allocate risk between buyer and seller.