Online Calculators since 2009
Boulder in Colorado has a tax rate of 8.85% for 2023, this includes the Colorado Sales Tax Rate of 2.9% and Local Sales Tax Rates in Boulder totaling 5.95%. You can find more tax rates and allowances for Boulder and Colorado in the 2023 Colorado Tax Tables.
Colorado has 204 seperate areas each with their own Sales Tax rates with the lowest Sales Tax rate in Colorado being 2.9% and the highest Sales Tax rate in Colorado at 10%.
Sales Tax in Boulder, Colorado is calculated using the following formula:
You can calculate Sales Tax manually using the formula or use the Boulder Sales Tax Calculator or compare Sales Tax between different locations within Colorado using the Colorado State Sales Tax Comparison Calculator.