Colorado Voters Reject Income and Sales Tax Increase November 2, 2011 Joseph Bishop-Henchman Joseph Bishop-Henchman Colorado voters yesterday rejected Proposition 103, which would have raised $2.9 billion between 2012 and 2016 by raising the state income tax from 4.63% to 5% and the state sales tax from 2.9% to 3% for five years. 36.3% voted yes while 63.6% voted no. As we noted earlier this week: While Colorado’s current state sales tax rate seems paltry at 2.9 percent, Tax Foundation analysis finds that once local sales tax rates are accounted for, Colorado has one of the higher sales tax rates in the country. The combined state and average local sales tax rate in Colorado is 7.48 percent, 15th highest in the nation. Colorado’s total state and local tax burden per capita for 2009 (the latest data available) was 18th in the nation, at $4,011. More on Colorado here. Stay informed on the tax policies impacting you. Subscribe to get insights from our trusted experts delivered straight to your inbox. Subscribe Share Tweet Share Email Topics Center for State Tax Policy Colorado Individual Income and Payroll Taxes Sales Taxes