A recently released California Chief Counsel Ruling authorized a corporate taxpayer to use its customers’ billing addresses as a proxy for the customers’ “commercial domicile” in calculating the taxpayer’s sales factor numerator. Chief Counsel Ruling 2011-01 (Aug. 23, 2011, rel. Dec. 28, 2011).
For sales factor purposes, California sources the sales of intangibles and services using costs of performance (COP) apportionment. The sales of intangibles and services are attributable to California if a greater proportion of the income-producing activity is performed in California than in any other state, based on COP. Before 2008, taxpayers could not include payments to agents and independent contractors as part of the taxpayer’s COP analysis. But beginning in 2008, California began to require taxpayers to take into account payments made to agents and independent contractors in calculating COP. As part of the analysis, the taxpayer must determine the location of the income-producing activity, and the regulations provide a comprehensive list of cascading rules to determine the appropriate location of the income-producing activity. See Cal. Code Regs. tit. 18, § 25136.Continue Reading We Know Where You Live: California’s Billing Address Sourcing



