Summary: California’s recent Smithfield Packaged Meats Corp. v. California Franchise Tax Board decision may provide multistate businesses with a roadmap to challenge single-sales-factor apportionment when it overstates in-state business activity. The ruling highlights how payroll, production, operational assets, and other value-creating functions can support alternative apportionment positions in California and potentially other states with similar tax regimes.

A recent California court decision may have implications far beyond the state’s borders for businesses subject to single-sales-factor apportionment. In Smithfield Packaged Meats Corp. v. California Franchise Tax Bd., the court concluded that California’s default apportionment method unfairly overstated Smithfield’s in-state business activity because the company’s core operational, production, payroll, and value-creating functions largely occurred outside California.

While the ruling specifically involved an agricultural taxpayer, the court’s broader alternative-apportionment analysis could provide a roadmap for businesses in many industries to challenge apportionment methods that distort where income is actually generated. Companies with significant operational footprints outside the states where they make sales should pay close attention, as the decision may support opportunities to pursue more equitable apportionment positions in California and other states with similar sourcing regimes.

California Court Details in Smithfield Packaged Meats Corp. v. California Franchise Tax Bd.

In the Smithfield case, the California Superior Court for Los Angeles County agreed with Smithfield Packaged Meats Corp. that it was entitled to apportion its income using a three-factor apportionment method rather than California’s default single-sales-factor method.

The court found that Smithfield qualified as an agricultural business, allowing it to use California’s three-factor formula. The court also held in the alternative that California’s default single-sales-factor formula produced a distortive and unfair result under 18 Cal. Code of Regs. Section 25137 because only a small portion of Smithfield’s operational and income-generating activities occurred in California, while California’s single-sales-factor method produced an apportionment percentage of more than 6.6%.

Why the Court Rejected California’s Single-Sales-Factor Apportionment Method

Importantly, the court’s analysis was not limited to Smithfield’s status as an agricultural taxpayer. In its alternative Section 25137 holding, the court considered Smithfield’s payroll, property, production activities, and other revenue-generating functions, rejecting the FTB’s narrower position that business activity for fair-apportionment purposes should effectively be measured only by sales. As a result, the decision may provide support for non-agricultural taxpayers seeking alternative apportionment where single-sales-factor apportionment substantially overstates in-state business activity.

Alternative Apportionment Under California Section 25137

The decision provides taxpayers with a useful alternative apportionment roadmap, potentially applicable beyond California, where a state’s default single-sales-factor apportionment method does not fairly reflect a taxpayer’s in-state business activities. In particular, the case recognizes that single-sales-factor apportionment may materially overstate a state’s share of income where the taxpayer’s income-generating and value-creating functions are largely performed elsewhere.

How the Smithfield Decision Could Impact Non-Agricultural and Multistate Businesses

Taxpayers with significant physical footprints – including payroll, plants, warehouses, research and development facilities, headquarters functions, production assets, or other operational assets – should take note of this decision. Such taxpayers should evaluate whether a state’s default single-sales-factor apportionment method fairly reflects where value is actually created. Where sales into a state exceed a taxpayer’s operational presence in that state, Smithfield may provide helpful support for an alternative-apportionment position. Taxpayers considering such a position should be prepared to develop substantial factual and economic support regarding the location and relative contribution of their functions, assets, employees/payroll, production activities, and income-generating activities.

For questions about alternative apportionment or whether it may be available in a particular state, contact your KSM advisor or complete the form below.