An ITEP analysis reveals that four states would see their residents pay more in aggregate federal personal income taxes under the House’s Tax Cuts and Jobs Act. While some individual taxpayers in every state would face a tax increase, only California, New York, Maryland, and New Jersey would see such large increases that their residents’ overall personal income tax payments rise when compared to current law. Californians would face the largest net tax increase, at $12.1 billion in 2027 alone. They are followed by New Yorkers ($4.0 billion in higher income taxes), Marylanders ($430 million), and New Jerseyans ($137 million). Overall, the residents of these four states combined would pay $16.7 billion more in federal personal income taxes by 2027. These increases are due in large part to House leadership’s decision to dramatically curtail the deduction for state and local tax payments.