The Immigration Police, at least in Phuket, are set to harrass Thai partners and landlords about notification of foreigners staying in hotels, villas or homes in Thailand.
They explained that checks will be made whenever a foreigner requests a 90 day extension of stay in Thailand. If the place where they are staying is not found in the notification system, the owner or manager will be fined B1,600.
The surveillance rules are laid out in Section 38 of the Immigration Law, which states, in part, The master, owner or possessor of a residence, or the hotel manager where the alien, having receiving permission to stay temporarily in the Kingdom, is
lodging, must notify the competent official of the Immigration Office located in the same area ... within 24 hours of the time of arrival of the foreigner concerned. If there is no Immigration Office located in that area , the local police in that area
must be notified.
Notifications can be made online but the hotel management, or home or villa owner must in the first instance go to Immigration in person to register and receive a login and password.