{"state":"CO","retrieved":"October 12, 2026","kind":"estimate","local_avg":4.99,"effective":"January 1, 2026 (average)","notes":["Colorado home-rule cities, counties, RTD/CD and special districts all tax vehicles at your registration address. Why still an estimate: home-rule cities collect their own tax and special-district boundaries don't follow city/county lines, so a county/city picker can't give an exact rate; use Colorado DOR's address lookup (DR 1002 / tax.colorado.gov).","This is a population-weighted average of local rates for general sales, not your exact rate. Enter your own local rate if you know it."],"sources":[{"t":"Tax Foundation, Facts & Figures 2026, Table 18 (average local sales tax rate, as of January 1, 2026)","u":"https://taxfoundation.org/wp-content/uploads/2026/05/TaxFoundation_FactsFigures26-5-28.pdf"}]}