The Florida Department of Revenue (the “Department”) recently published Technical Assistance Advisement No. 17C1-004 (decided Apr. 17, 2017, published Aug. 25, 2017) (the “TAA”), which addresses how receipts from “other sales” are sourced under Florida’s apportionment regulation (i.e., Florida Administrative Code Regulation (“Regulation”) 12C-1.0155(2)(l)).  Despite the cost-of-performance (“COP”) language explicitly stated in Florida’s Regulation 12C-1.0155(2)(l), the Department applied a market-based sourcing approach, concluding that the receipts from certain services should be sourced to Florida when the taxpayer’s customers are physically located in the state.  While Technical Assistance Advisements have no precedential value, the TAA showcases Florida’s propensity to use market-based sourcing for receipts from “other sales,” which appears to be in contrast to the COP directive under Florida Regulation 12C-1.0155(2)(l).