Most transient houses require guests to present at least one valid government-issued ID upon check-in, such as a passport, driver’s license, or national ID, to verify their identity and ensure the safety of the property. Some hosts may also ask for the booking confirmation or receipt as proof of reservation. Requirements can vary by property, so it is advisable to ask the host in advance through Transienthome.com what specific documents are needed to avoid any delays or issues at check-in.