FAR32 Business Combinations

There are significant differences between U.S. GAAP and IFRS in accounting for contingencies acquired or assumed in a business combination. What are the differences?

Under IFRS, assumptions related to acquired contingencies must be disclosed. What is the case for U.S. GAAP?

Under U.S. GAAP, pro forma information must be disclosed for current and prior periods presented. What is required under IFRS?

Is goodwill impairment testing is a one-step test under IFRS or U.S. GAAP?