Congress proposes two-tier federal tax system based on where you live
H.R. 9179 — Cost of Living Tax Cut Act · Filed by Laura Gillen (D-NY) · 1 cosponsor · Introduced Jun 8, 2026 · Referred to committee
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What it does
This bill adjusts federal income tax brackets based on regional cost-of-living differences, so that people in expensive areas (like San Francisco or New York City) pay lower effective tax rates than people in cheaper areas earning the same income. The Treasury Department would calculate a cost-of-living index for each metro area and statistical region annually, then multiply income tax brackets by a regional multiplier—capping the adjustment at 90% of the cost-of-living differential for high-cost areas, using a 1.05 multiplier for moderate-cost areas, and 1.0 for lower-cost areas.
Why we flagged it
The bill's core function is to create a geographically differentiated income tax system using cost-of-living indices. It is not a simple tax cut (rates stay the same; brackets adjust), but rather a structural reform of how federal income tax applies across regions.
What the text implies
- Creates a permanent two-tier federal tax system where identical incomes are taxed differently based on geography, potentially incentivizing migration to high-cost areas for tax benefits.
- The 90% cap on high-cost adjustments means San Francisco/NYC residents still pay more tax on the same income than rural residents, but the gap narrows—unclear if this is intentional or a compromise.
The full analysis lists 5 implications of this text.
Who stands to gain
residents of high-cost metropolitan areas; urban professionals in expensive metros