A short-term rental (STR) registration number is a unique identifier issued by a city, county, or other local authority when a host registers or licenses a property for short-term letting. Many jurisdictions require hosts to obtain this number before advertising and to display it prominently on listings across booking platforms, so that regulators and the platforms themselves can verify a rental is legally permitted. Obtaining a registration number often involves an application, fees, proof of insurance or safety compliance, and sometimes limits on the number of nights a property may be rented. Platforms increasingly validate or automatically request these numbers, and listings without a valid number may be suspended or removed. Because registration requirements, costs, and renewal timelines vary widely by location and change over time, hosts should confirm the specific rules with their local authority.
Why this matters for property managers
Displaying this identifier is increasingly the condition that keeps a listing live, as platforms in regulated cities now suppress or remove listings that cannot show a valid one. It also ties every booking back to a registered operator, which is exactly how authorities detect and penalize unlicensed activity. Operators who obtain and correctly post this number preserve their visibility and demonstrate the good standing that reassures both platforms and guests, while a missing or invalid number can quietly cut off a property's demand.
Frequently Asked Questions
Do I need an STR registration number to list my property?
Where do I display my STR registration number?
What happens if I list without a required registration number?
How do I get an STR registration number?
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