Post-Merger Integration Is Where Deals Actually Go to Die

The negotiation gets the press release. Integration gets almost no attention, and it’s where a meaningful share of otherwise sound acquisitions quietly destroy the value the deal was supposed to create.

The pattern is consistent: two companies with incompatible chart-of-accounts structures, different revenue recognition policies, and separate ERP systems get combined on paper on day one, and the actual financial-systems integration gets scheduled for “sometime in the first year.” Six months in, management is making decisions off two sets of numbers that don’t reconcile, and nobody can say with confidence what the combined entity’s actual margin looks like.

We stay engaged through the first two quarterly closes post-transaction specifically to force this reconciliation early, while there’s still institutional memory on both sides about why each system was built the way it was. Waiting until it’s convenient means waiting until the people who understand the legacy systems have already left.