
Colorado voters have rejected 68% of ballot measures requiring a statewide vote under the state’s Taxpayer’s Bill of Rights, also known as TABOR.
In 1992, Colorado voters approved Initiative 1, which created a Taxpayer’s Bill of Rights in the Colorado Constitution. The Colorado Taxpayer’s Bill of Rights (TABOR) requires voter approval for all new taxes, tax rate increases, extensions of expiring taxes, mill levy increases, valuation for property assessment increases, or tax policy changes resulting in increased tax revenue.