Short-Term Rental Regulations
in Saint Charles County, MO

Airbnb listings are allowed in Saint Charles County, MO, but with restrictions. At the county level, lodging establishments must pass safety/sanitary inspections and operate in accordance with state laws. In the City of St. Charles, residential STRs require a 500-foot buffer from other STRs, mandatory noise-monitoring devices, off-street parking (one space per bedroom), and are currently subject to a cap that prevents new residential applications. A permit is required before you can host. These rules apply to all short-term rental platforms (Airbnb, Vrbo, Booking.com, etc.) — not just Airbnb specifically. See the official source linked on this page for full requirements. Last verified 2026-05-14.

At the county level, lodging establishments must pass safety/sanitary inspections and operate in accordance with state laws. In the City of St. Charles, residential STRs require a 500-foot buffer from other STRs, mandatory noise-monitoring devices, off-street parking (one space per bedroom), and are currently subject to a cap that prevents new residential applications.

Yes, a permit is required to operate a short-term rental in Saint Charles County. 1. Register the facility with the St. Charles County Convention & Sports Facilities Authority to pay the 5% room tax. 2. For lodging establishments (5+ rooms), submit a written permit application to the Regulatory Authority with a $450 fee. 3. Pass a safety and sanitation inspection prior to permit approval; permits are renewed every two years.

1. Register the facility with the St. Charles County Convention & Sports Facilities Authority to pay the 5% room tax. 2. For lodging establishments (5+ rooms), submit a written permit application to the Regulatory Authority with a $450 fee. 3. Pass a safety and sanitation inspection prior to permit approval; permits are renewed every two years.

Vrbo is permitted in Saint Charles County, MO under the same restrictions that apply to Airbnb — local rules govern the rental itself, not the specific platform. You must hold a valid permit before hosting on Vrbo. Last verified 2026-05-14.

Short-term rental hosts in Saint Charles County are typically responsible for lodging, occupancy, and applicable sales taxes — these usually apply even where hosting is allowed without a permit. Rates and remittance rules vary by jurisdiction (state, county, and city can each levy a share); confirm the current rates with the official source linked on this page. Platforms such as Airbnb and Vrbo collect some taxes automatically, but the host remains liable for any not collected on their behalf.

We are not currently tracking any recent short-term rental ordinance changes for Saint Charles County. STR rules change frequently — verify the current requirements with the city or county before listing, using the official source linked on this page.