sentences:  As of 2005-01-01, it is also forbidden under International Financial Reporting Standards.Goodwill can now only be impaired under these GAAP standards.Instead of deducting the value of goodwill annually over a period of maximal 40 years, companies are now required to determine the fair value of the reporting units, using present value of future cash flow, and compare it to their carrying value (book value of assets plus goodwill minus liabilities.)