Short-term rental permit rules in Adams County, CO — also called Airbnb permits, vacation rental licenses, or STR registration — list the application steps, fees, and operating requirements for hosting.
Unincorporated Adams County, Colorado does not have a short-term rental ordinance and requires no county STR permit or license. Hosts must still hold a Colorado sales tax license and collect state-administered taxes. Inside Commerce City, Thornton, Northglenn or other cities, the city's own STR rules apply.
Adams County's Planning & Development Department administers the county Development Standards and Regulations for unincorporated land, but the county has not adopted a dedicated short-term rental (STR) permit or license program. The county confirms it has 'no separate sales tax license' because the Colorado Department of Revenue administers county sales tax, and it offers only a voluntary business registration. Operators in unincorporated Adams County therefore obtain a state sales tax license rather than a county STR permit. Cities within the county (Commerce City, Thornton, Northglenn, Federal Heights, Brighton, and parts of Aurora/Westminster) set their own STR licensing, so check the specific municipality if the property is incorporated.
No county STR permit exists, so no county STR penalty applies in the unincorporated area. Failing to collect or remit state sales tax on rentals under 30 days can trigger Colorado Department of Revenue penalties and interest.
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See how Adams County's permit requirements rules stack up against other locations.
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