Idaho's Income Tax Cuts Have Cost the State Nearly Four Billion Dollars

Five consecutive years of income tax cuts weaken the state's long-term revenues by over a billion dollars annually.

Idaho Center for Fiscal Policy analysis on the fiscal impacts of income tax cuts in HB 380, HB 436, HB 1, HB 521, and HB 40. Bills are annotated on the chart on the year in which they went into effect. "Income tax collections" in 2025 are projections by the Idaho Division of Financial Management. "No income tax cut" estimates are inflation-adjusted.
Chart: Idaho Center for Fiscal PolicySource: Institute on Taxation and Economic Policy and Idaho Division of Financial ManagementCreated with Datawrapper