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Published on May 26, 2026 1 min read

California Tax Litigation: Nexus Battles, Retroactive Laws, and Apportionment Disputes

In part two of Aprio’s conversation with Michael Cataldo from Cataldo Tax law firm, we explore the distinction between business and non-business income and the complexities of the throw-out rule in California’s evolving tax landscape. Michael also highlights current cases to watch, why early issue identification is critical for taxpayers, how major transactions can trigger sourcing disputes, and why practitioners should stay proactive with return reviews and apportionment strategies to help reduce audit risk.

Disclaimer: The views, thoughts, and opinions expressed on the SALTovation podcast, including that of all participants, are the speaker’s own and do not represent the views, thoughts, and opinions of Aprio or any of its affiliates. The material and information presented on the podcast is for general information purposes only. The “Aprio” name and all forms and abbreviations are the property of its owner and its use does not imply endorsement of or opposition to any specific product or service.