Short-Term Rentals in Ontario, CA (2026)
8 verified short-term rentals rules for Ontario, California, sourced directly from the municipal code and official government pages.
Verified from official government sources
Permit Requirements
Ontario requires a Short-Term Rental Permit and a business license before any dwelling under 30 days is rented. Only the host's primary residence qualifies, and non-owner-occupied vacation rentals are prohibited.
STR Permit & Business License Required
Heavy RestrictionsOntario Development Code Sec. 5.03.363(B) (Short-Term Rental Regulations)
Permit required for authorized short-term rental. No person, either for themselves or any other person, shall cause, allow, conduct, permit, maintain, or facilitate short-term rental at any dwelling unit within the city without first obtaining a short-term rental permit pursuant to this chapter, and complying with all other applicable provisions of this code. A short-term rental permit shall on...
Noise Rules
STR guests must comply with Ontario Municipal Code Chapter 29 noise rules including 10 PM to 7 AM quiet hours. Operators are responsible for guest conduct and repeat noise violations can cost them the permit.
Short-Term Rental Noise Rules in Ontario
Some RestrictionsTaxes & Fees
Ontario charges a Transient Occupancy Tax on short-term stays under 30 days. Operators must register for a TOT certificate, collect the tax, file returns, and pay an annual STR permit fee.
Short-Term Rental Taxes and Fees in Ontario
Some RestrictionsParking Rules
Ontario STR guests must park on-site in the driveway or garage before using the street. Overflow street parking must obey posted signs, street sweeping, and oversized-vehicle restrictions.
Short-Term Rental Parking Rules in Ontario
Some RestrictionsOccupancy Limits
Total occupancy at an Ontario STR, including the host and all guests, may not exceed two times the number of bedrooms. A single dwelling is limited to two concurrent groups or booking transactions, and un-hosted stays are capped at 90 days per year.
Two Guests Per Bedroom; Two-Group Limit
Some RestrictionsOntario Development Code Sec. 5.03.363(I)(5),(8),(11) (Operating Requirements)
The dwelling unit's occupancy, including the host, other residents of the dwelling unit, and guests, during a short-term rental shall not exceed two times the number of bedrooms of the dwelling unit. ... A single dwelling unit shall be limited to two groups of any number concurrently or two concurrent booking transactions. ... Un-hosted stays shall be limited to a total of 90 days within a cale...
Insurance Requirements
Ontario STR operators should carry a dedicated short-term rental liability policy. Standard homeowner policies typically exclude STR activity and platform coverage should be treated as a supplement only.
Short-Term Rental Insurance Requirements in Ontario
Few RestrictionsNight Caps
Ontario distinguishes between hosted and non-hosted STRs and may cap annual rental nights for non-hosted whole-home rentals. Operators must track bookings and retain records for city review.
Short-Term Rental Night Caps in Ontario
Some RestrictionsRegistration Rules
Ontario STR registration requires a Planning-issued permit, Finance TOT certificate, and business license. Annual renewal, a 24-hour contact, and safety inspection items are standard conditions.
Short-Term Rental Registration Rules in Ontario
Heavy RestrictionsLooking for San Bernardino County county-wide rules?
County ordinances apply to unincorporated areas and may supplement Ontario city rules.
Short-Term Rentals in San Bernardino County →