Property taxes

New York Gov. Andrew Cuomo sent letters to the Internal Revenue Service and to Treasury's Inspector General for Tax Administration threatening litigation and and asking for a probe of alleged undue political interference.

The bill would make permanent the lower tax rates for individuals and small businesses and the $10,000 federal cap on state and local tax deductions.

The proposed Treasury rules would limit states' use of charitable deductions as workarounds for the $10,000 cap on the federal deduction for state and local taxes.

The measure, which may be on the ballot in 2020, would lift the Proposition 13 limit on commercial property tax assessments.