America's top destination for new taxpayers is quietly getting poorer, IRS data reveals

Manhattan added more federal tax filers than any other U.S. county in the most recent IRS data period, but aggregate income from the county's tax filers declined by approximately $1 billion during the same period. The shift reflects migration of higher-income earners to states including Florida and Texas, which have no state income tax. IRS data tracking these movements was reviewed by researchers examining county-level tax filing patterns.

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