Because of their unique “Home Rule” city system, certain cities can set their own sales tax rules, rates, and laws. Sellers in Colorado have to collect, file, and remit sales tax in each of these cities separately, as well as the state through the Colorado Department of Revenue. You can imagine the headache that caused sellers – perhaps you’ve even had to experience it yourself. Luckily, Colorado has implemented a new system that makes filing a little easier on sellers.
Source: taxjar.com