Regulation & Licensing · 2026
What the Law Requires in Hermann
In Missouri a short stay is taxed through the sales tax. Airbnb collects the state's 4.225 percent sales tax on Missouri reservations of 29 nights or shorter, cleaning fee included, along with the local sales taxes stacked on top where they apply: city and county sales taxes, additional county sales taxes, a 0.25 percent tourism tax for water quality, promotional tourism taxes of 0.5 to 5 percent and a 1 percent local sales tax. Its Missouri list of local lodging taxes is short, St. Charles County, Hannibal, Independence, Jefferson City and St. Louis, so Hermann, Gasconade County, Franklin County, Washington, Warren County and Innsbrook aren't on it. On a direct booking you collect and remit all of it yourself, and Hermann's lodging tax form asks for your sales tax ID number. Larger places draw in the state as well: Hermann's code requires a lodging establishment with five or more guest rooms to have a Missouri state inspection every year and give the city a copy of the latest report, or written proof from the state that the place is exempt.
Inside Hermann's city limits, every lodging place needs a lodging establishment permit. Section 420.050 of the city code, as adopted by Ordinance 2181 on February 10, 2020, covers hotels, motels, tourist homes, vacation rentals, bed and breakfast homes and inns, guest houses and any other place that provides accommodations for transient guests, and the permit is filed with the city's zoning inspector and renewed every year. Each initial and renewal application needs the building inspector's written confirmation, after an annual inspection, that the house meets the code's safety rules; proof of commercial liability insurance or a homeowner's rider covering lodging; a City of Hermann business license; and, for five or more guest rooms, the state inspection report. The rules themselves are concrete. The occupancy you declare for each room adds up to the house's maximum, subject to the inspector's check. A sign inside the front door must show that maximum, the name and phone number of the operator or agent, emergency numbers and where the fire extinguishers are, and exit signs go over every exit door; bed and breakfast homes are exempt from both. The street number must be at least four inches tall in a contrasting color, or of a design the Landmarks Commission approves in the historic overlay district. Every guest room needs a smoke alarm and two ways out, a window and a door counting as two; every floor needs a smoke alarm in the hallway, a charged fire extinguisher, the kitchen preferred, and a carbon monoxide detector in a central spot; and you keep a register with the name of each renter and the size of the party. The building must also meet the most recent International Building Code edition the city has adopted. A permit can be revoked for breaking the code, after 20 days' written notice and the chance of a hearing before the Board of Aldermen.
Hermann adds its own lodging tax of 5 percent, filed quarterly with the City Collector on a separate form for each address, with a zero return for a quarter with no stays. The base is gross receipts, meaning the total the guest paid rather than what reached you after booking-agent fees, and the form puts the due dates at April 30, July 30, October 30 and January 30, with a 3 percent monthly penalty and interest on unpaid tax. The code treats tax unpaid 30 days after a quarter ends as delinquent, which opens the way to interest, revocation of the business license, prosecution in Municipal Court and an injunction. There's a marketing penalty as well: under the city's June 2026 guidelines, a lodging business that misses a due date loses its listing on VisitHermann.com and HermannMo.com and its rack cards at the visitor center, and only businesses whose license was issued by February 1 stay on the website. Zoning is where Hermann has tightened most. Bed and breakfast inns, guest houses, vacation rentals and other lodging the owner doesn't live in were allowed in the R-2 and R-3 residential districts only as conditional uses. On February 12, 2024, the Board of Aldermen passed Ordinance 2386, a moratorium on processing conditional use permits for guest houses and bed and breakfast inns in residential zones, written to expire after one year unless extended. Bill No. 2025-04 followed: read a first time on January 13, 2025, and listed for its second reading on January 27, it would rewrite Code Sections 420.110 and 420.120 to prohibit those uses in both districts. We couldn't find the result of that vote in the city's online agendas or ordinance lists, so don't assume either outcome. Under the bill, places already operating legally, as a prior nonconforming use or under a conditional use permit, could continue, and a permit could be renewed with the Board's approval; renewals already come to the Board as agenda items, as two owner-unoccupied guesthouses did on January 27, 2025. The bill would also give a buyer of more than half of such a property, and heirs, trustees and new majority owners of an LLC or corporation that owns one, six months to apply for a permit of their own, and a 2024 city bill notes that a conditional use permit is personal to the permittee and doesn't run with the land. The comprehensive plan adopted in December 2025 describes the policy as a pause while the city evaluates the impact of short-term lodging, so ask City Hall which ordinance is in force for your address, what your district allows, and whether exterior work needs a Certificate of Appropriateness from the Landmarks Commission under the Historic District Guidelines the Board took up in January 2025.
East along the river, the rules change by county and town. Airbnb collects St. Charles County's 5 percent sleeping room tax on stays of 31 nights or fewer, and the county has passed a short-term rental license for its unincorporated areas, which take in Defiance and the countryside around Augusta. Ordinance 26-052, passed on July 13, 2026, became law on July 28 when it was returned without the County Executive's signature. It covers any dwelling unit rented for fewer than 30 consecutive days, including stays booked through Airbnb or VRBO, but not hotels, motels or bed and breakfasts. You'll apply to the Department of Community Development with a $25 application fee for a two-year license that costs $200, name a local contact person who is reachable around the clock and can respond within 45 minutes, certify the number of bedrooms that meet building and safety codes, egress included, and the number of on-site parking spaces, and attach house rules on occupancy, parking, trash and noise. A house may be inspected before the license is issued and from time to time after that, for working smoke and carbon monoxide detectors, obvious hazards and basement egress. Rentals can't be used as event venues, gatherings in front yards and driveways are banned, collecting every applicable lodging tax is a condition of the license, a change of owner, manager or contact must be reported within ten days, and a revoked license means a year's wait before reapplying; a conviction can bring a fine of up to $500, up to 30 days in jail or both, with each day counting as a separate offense. The ordinance gives the county six months after it takes effect before licensing starts, which points to early 2027. Inside an incorporated town such as Augusta, the county license doesn't apply; the Town of Augusta's own ordinances, licenses and permits do. For Washington, New Haven and the rest of Franklin County, and for Warren County and Innsbrook, we couldn't read current short-term rental requirements online: Washington's planning and zoning permits page is the place to start, and at Innsbrook get the resort's rental rules and any local permit requirements in writing before you buy. Treat this section as orientation rather than legal advice, and confirm current requirements with the city or county, the Missouri Department of Revenue and any owners' association before you list. Cavmir handles the marketing side; permits, inspections and tax compliance sit with you and your local professionals.