Federal law would limit states' power to tax multi-state workers
H.R. 10271 — Mobile Workforce State Income Tax Simplification Act of 2026 · Filed by Craig Goldman (R-TX) · Introduced Sep 3, 2026 · Referred to committee
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What it does
This bill restricts states' ability to tax employees who work across multiple states. Under the law, a multi-state worker's wages can only be taxed by their home state or by any state where they work more than 30 days in a calendar year. The bill exempts professional athletes, entertainers, production workers, and public figures from these protections, allowing states to continue taxing them. Employers gain safe harbor to rely on employees' self-reported work locations unless they have actual knowledge of fraud.
Why we flagged it
The bill's core mechanism is a federal constraint on state taxing power over multi-state workers. It is not a tax cut per se (no federal tax change), but a reallocation of taxing authority from states to home-state-only taxation, with narrow carve-outs for high-income performers.
What the text implies
- States with large commuter populations (e.g., border states, major metro areas) may experience significant revenue loss, potentially forcing tax increases on residents or service reductions.
- The 30-day threshold creates a bright-line rule that may incentivize employers to structure assignments to stay just under 30 days to minimize withholding obligations.
The full analysis lists 5 implications of this text.
Who stands to gain
Multi-state workers (reduced tax exposure); Employers with multi-state workforces (simplified withholding and compliance)