Getting a message from your Airbnb host after you have already checked out can feel unsettling, especially if they are asking for extra money for “unexpected wear and tear.” The short answer is that a host cannot simply invent a new fee and force you to pay it outside Airbnb’s rules. Airbnb does have a process for hosts to request money for damage or certain extra costs, but it is supposed to go through the platform’s Resolution Center. Whether the charge is valid depends on what happened, what was disclosed in the listing, and what evidence the host can provide.