On Wednesday, local time, Microsoft said in a regulatory filing that it would appeal the IRS's decision to pursue at least $28.9 billion in taxes from it.。This tax recovery relates to Microsoft's operations related to the distribution of revenue and expenses among its global subsidiaries between 2004 and 2013.。The dispute centers on a 2012 IRS audit of transfer pricing, a method used by companies to shift profits to tax havens to circumvent U.S. corporate tax rates.。At the time, Microsoft shifted billions of dollars in profits to jurisdictions like Puerto Rico, which is a U.S. territory but has a much lower corporate tax rate.。