Colorado Income Tax Rate 2024 Brackets. To calculate the colorado income tax, a “flat” tax rate of 4.40 percent is applied to federal taxable income after adjusting for state additions and subtractions, the largest and most. This tool is designed for simplicity and ease of use, focusing solely on income.
Calculate your total tax due using the co tax calculator (update to include the 2024/25 tax brackets). Colorado state income tax rates and tax brackets.