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Accounting & CPA · Daily Brief

Why State Tax Policy Wars Are Becoming CPAs' Next Big Challenge

Saturday, March 14, 2026

Today's developments reveal an emerging complexity in state-level tax policy that will require CPAs to adapt their multi-state tax planning strategies. Washington State's new millionaires tax is creating ripple effects across multiple sectors, from professional sports to general business operations, highlighting the growing importance of state-specific tax considerations in client advisory services. The situation presents both challenges and opportunities for accounting professionals, particularly those serving high-net-worth individuals and businesses operating across state lines. This development suggests a broader trend of states implementing targeted high-income taxes, which could reshape how CPAs approach tax planning and location strategy for clients. The contrast between Washington's new tax and Mississippi's proposed athlete tax exemptions particularly emphasizes the growing complexity of state-by-state tax planning.

I

Washington Business Groups Express Concern Over Competitiveness Impact of Millionaires Tax

Business leaders, including Greater Spokane Inc. CEO Alisha Benson, warn that Washington's new millionaires tax could harm the state's ability to compete with neighboring states for business investment and job creation.

Impact · CPAs need to reassess tax planning strategies for high-net-worth clients and businesses operating in Washington State, particularly those with multi-state operations or considering relocation.

Action
Review client portfolios to identify those affected by the Washington millionaires tax and develop state-specific tax optimization strategies, including possible restructuring or relocation considerations.
II

Mississippi Proposes Income Tax Elimination for College Athletes, Creating New Tax Planning Considerations

Mississippi legislature is considering a bill to eliminate state income tax for college athletes, potentially creating a tax advantage over other SEC states.

Impact · Creates new tax planning opportunities for CPAs working with collegiate sports organizations and student-athletes, while setting precedent for similar legislation in other states.

Action
Develop specialized tax advisory services for collegiate sports clients and monitor similar legislation in other states.

Watch for: 1) Other states' responses to Washington's millionaires tax, particularly neighboring states that might position themselves as tax-friendly alternatives. 2) Additional states following Mississippi's lead on specialized tax exemptions for specific groups. 3) Migration patterns of high-net-worth individuals and businesses in response to state tax policy changes. 4) Development of new tax planning tools and strategies specifically designed for multi-state tax optimization.

  1. CPA Practice Advisor • Washington Business Groups Worry About How 'Millionaires Tax' Could Affect Competitiveness • https://www.cpapracticeadvisor.com/2026/03/13/washington-business-groups-worry-about-millionaires-tax-affecting-competitiveness/179818/
  2. CPA Practice Advisor • Opinion: Tax Breaks for Football Players? That's Just the Beginning in the SEC • https://www.cpapracticeadvisor.com/2026/03/13/opinion-tax-breaks-for-football-players-thats-just-the-beginning-in-the-sec/179836/