If the House provision is enacted, the SALT cap would rise to $40,000, up from $30,000 in the previous plan, and phase out over $500,000.

Senate Majority Leader John Thune has argued that the ability to write off state and local taxes only benefits homeowners in high-tax states.

The higher SALT cap would mean millions of mostly high-income taxpayers in high-tax states would save thousands of dollars off their taxes. The changes could go into effect for th