After nearly a decade in development, the California Franchise Tax Board (FTB) has finalized its amended market-based sourcing regulation under Regulation Section 25136-2, which governs the sourcing of receipts from services and intangible property.
The regulation was approved by the Office of Administrative Law and filed with the Secretary of State on August 27, 2025. The revised rules will apply to tax years beginning on or after January 1, 2026. Among the most significant changes to the regulation are:
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