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Bill Summary · SB 3149

Legislative bill overview

SB 3149 updates Hawaii's tax code to conform to the current Internal Revenue Code (IRC), ensuring state tax provisions align with federal tax definitions and standards. This is a technical conformity bill that automatically brings Hawaii's tax laws into sync with federal tax law changes.

Why is this important

Tax conformity bills directly affect how much revenue the state collects and which taxpayers benefit from deductions, credits, and other tax provisions. When Hawaii's tax code diverges from the IRC, it can create complexity for taxpayers filing both state and federal returns and may result in unintended tax increases or decreases for various income groups.

Potential points of contention

  • Revenue impact uncertainty: Conforming to federal changes could increase or decrease state revenue depending on which IRC provisions are being adopted, and the fiscal note may not be immediately available
  • Timing of federal changes: The bill may conform to recent federal tax law changes that some consider temporary or controversial (such as provisions from the Tax Cuts and Jobs Act or other recent legislation)
  • Retroactive application: Conformity bills sometimes apply retroactively to prior tax years, creating compliance burdens or unexpected tax bills for taxpayers

Compiled from official sources — confirm details with the bill’s official record.

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