Explain how purchase accounting treats a target's deferred revenue balance at closing. Why does this almost always reduce goodwill, and what is the post-close revenue implication?

Under ASC 805, deferred revenue is recorded at fair value, which is the amount the acquirer would have to pay an independent party to assume the obligation. Fair value is typically the cost to fulfill the remaining performance obligation plus a normal profit margin, which is generally much lower than the book value (which equals cash collected less amortization). The resulting liability is smaller than the target's legacy balance. This reduction in the liability assumed increases the fair value of net identifiable assets, which mechanically decreases goodwill. After closing, the acquirer will record revenue only as it satisfies the remaining performance obligations, which means it will not simply recognize the legacy deferred revenue over time. The result is lower post-acquisition reported revenue compared to what the target would have reported independently, a fact that can depress reported growth rates and confuse analysts.

Follow-up pressure: (1) If the target has $100 million of deferred revenue on its books and the fair value is $30 million, walk through the exact pro forma adjustments and the dollar impact on goodwill, assuming a 25% tax rate and no other changes. (2) How would you model this revenue haircut in a merger model, and what is the typical timing? (3) Why might a buyer actually prefer a lower fair value for deferred revenue, beyond the goodwill effect?