Coca-Cola is engaged in a significant legal dispute with the IRS concerning transfer pricing, a case that could cost the beverage giant as much as $20 billion. The heart of the case, dubbed "the Super Bowl of transfer pricing controversy" by Eide Bailly principal Chad Martin, revolves around how Coca-Cola priced transactions with its foreign affiliates for the right to use its trademarks. The company is appealing US Tax Court rulings from 2020 and 2023 that largely sided with the IRS's argument that Coca-Cola's foreign affiliates did not pay enough for these rights, leading to an underreporting of its U.S. income. Oral arguments for Coca-Cola's appeal are scheduled next week, on June 25, before the U.S. Court of Appeals for the Eleventh Circuit in Miami. The financial stakes are substantial for Coca-Cola, which has already paid $6 billion to the IRS and may incur an additional $14 billion if it loses the appeal, bringing the total to $20 billion. Despite this, the company has only reserved $520 million for this potential payment. For the IRS, the outcome of this case will significantly influence its enforcement leeway regarding transfer pricing rules for multinational corporations. The legal battle also touches upon the impact of the Supreme Court's 2024 Loper Bright ruling, which weakened agencies' regulatory authority, as Coca-Cola argues this ruling could invalidate the IRS's "blocked income" regulations that were previously upheld by the Tax Court. These regulations allowed the IRS to allocate full amounts to the U.S. parent's income, even when certain countries, like Brazil, limit royalty payments from local affiliates.