Host Platform Liability: San Francisco vs Seattle
How do host platform liability rules compare between San Francisco, CA and Seattle, WA?
Seattle has fewer restrictions than San Francisco.
San Francisco, CA
San Francisco County
Airbnb, Vrbo, and any STR platform operating in San Francisco must verify each listing has a valid OSTR registration number before processing bookings. Platforms face direct fines for hosting unregistered listings, shifting enforcement burden from individual hosts.
View full San Francisco rules →Seattle, WA
King County
Under RCW 64.37, Airbnb, Vrbo, and other booking platforms operating in King County must require operators to attest to insurance, registration, and tax compliance, and must remove listings that fail to meet state and local requirements.
View full Seattle rules →Key Facts Comparison
| Fact | San Francisco | Seattle |
|---|---|---|
| Code section | Police Code 41A.5(g)(4) | - |
| Per-booking platform fine | $1,000 | - |
| Settlement year | 2016 federal Airbnb deal | - |
| Reporting cadence | Monthly platform reports | - |
| State law | - | RCW 64.37 |
| Tax collection | - | Platform remits |
| Seattle license check | - | Required on listing |
| Liability coverage | - | $1M operator or platform |
Highlighted rows indicate differences between cities.
San Francisco FAQ
Why doesn't Airbnb let me list without a registration number in SF?
Police Code 41A.5(g)(4) prohibits platforms from processing bookings on unregistered SF listings. Airbnb fields a real-time OSTR API check and blocks any listing without a valid registration.
Are platforms responsible if a host lies about primary residence?
Platforms are not liable for host misrepresentation but must remove listings within five business days of an OSTR notice and forfeit fees on flagged stays.
Seattle FAQ
Will Airbnb collect King County lodging tax for me?
Yes. Airbnb has remitted Washington state and King County lodging taxes since 2015. Other platforms vary; verify in your account dashboard before assuming taxes are handled.
Can a platform remove my listing for missing a city license?
Yes. RCW 64.37 and Seattle SMC 6.600 require platforms to delist operators who lack valid local licensure, and most major platforms enforce this automatically.
Compare other topics
See how San Francisco and Seattle compare on other ordinance categories.
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