Few corporate tax disputes in history carry the weight of Coca-Cola Company & Subsidiaries v. Commissioner. Now before the 11th Circuit Court of Appeals after a decade of Tax Court litigation, the case puts up to $18 billion in potential liability on the line and raises fundamental questions about IRS authority to retroactively change accepted transfer pricing methodologies.

The Origins: A 1996 Closing Agreement and the "10-50-50 Method"

The dispute traces back to a 1996 IRS closing agreement resolving Coca-Cola's transfer pricing for 1987–1995. Under this "10-50-50 method," supply point subsidiaries in Brazil, Chile, Costa Rica, Ireland, Mexico, and Swaziland retained profits equal to 10% of gross sales, with residual profits split equally between the US parent and foreign supply points. The IRS accepted this method for 11 consecutive audit cycles then abruptly changed course in 2011, applying the Comparable Profits Method (CPM) to tax years 2007–2009, generating $9 billion in adjustments.

Coca-Cola deposited over $6 billion with the IRS in September 2024 to cover deficiencies and accrued interest. The company estimates its total potential exposure if the IRS's methodology is applied through current years at approximately $18 billion.

The Core Legal Questions

Coca-Cola's appellate brief, filed February 25, 2025, raises two critical arguments. First, that the IRS engaged in an arbitrary and capricious "bait-and-switch" by applying a new methodology retroactively after years of acquiescence. Second, that the CPM-based allocations were substantively flawed particularly in how they ignored the Costa Rican supply point's $53 million annual marketing spend, instead assigning returns based only on tangible asset investment.

The case carries industry-wide implications: if the 11th Circuit upholds the IRS position, tax authorities in other jurisdictions may claim that local marketing activities create taxable profit locally potentially triggering a global wave of TP reassessments for IP-rich MNEs.

Parallel Controversy: The Amgen Disclosure Case

Running alongside Coca-Cola is a securities class action against Amgen, where a judge colourfully compared the company's omission of a $10.7 billion IRS transfer pricing dispute from its SEC filings to a child saying they "had dessert" when they had eaten "the whole cake." Together, these cases signal a new era of heightened disclosure expectations around TP exposures.

IRS Capacity Crisis

Complicating enforcement, the IRS lost approximately 25% of its workforce through DOGE-related reductions, cycling through six commissioners in under a year, and faced a government shutdown in October 2025. The House subcommittee approved further budget cuts to $9.8 billion for fiscal 2026. Despite constrained resources, the IRS continues to carry an unusually large inventory of TP disputes in Tax Court, district courts, and circuit courts.