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Jason Rosenberg is a Principal and Leader of Withum’s State (SALT) Income and Franchise Tax Service Line. With over 15 years of state and local tax experience, Jason focuses on all areas of multistate income and franchise taxes. He has significant experience serving clients in manufacturing, retail, life sciences, financial services, technology, and other service industries.

Jason’s SALT practice areas include state tax planning, nexus considerations, income tax accounting (i.e. ASC 740 provision), group filings (i.e. combined), state apportionment/sourcing, tax base modification rules, unitary taxation, due diligence, and credits & incentives. In addition, he performs state and local tax reviews designed to identify potential refund claims, prospective opportunity filings, and mitigation of tax exposures. Jason also assists clients with providing controversy services, including audit defense representation, delinquency settlements, ruling requests, and voluntary disclosure agreements.

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Latest Thinking

On-Demand Webinar: Top State and Local Tax Challenges for the Healthcare Industry

Please join James Bartek, Jason Rosenberg and Bonnie Susmano from Withum’s State and Local Tax services team, as they provide an update on key state and local tax issues affecting […]

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New Jersey Tax Legislation A5323
How Will New Jersey Legislation (A5323) Affect Financial Services?

On July 3, 2023, New Jersey enacted comprehensive tax legislation (A5323) that will likely impact every business in one shape or another. As we’ve previously written about, although a significant […]

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payroll tax
New Jersey Enacts Payroll Tax “Convenience of Employer” Rule

Enacted on July 21, 2023, New Jersey A4694 creates a “Convenience of Employer” rule, affecting both employers and employees for payroll tax reporting purposes. The new law is retroactive to […]

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