TM.30 form (Notification of residence) **completed by a landlord**
According to section 38 of the 1979 immigration act, “House owners, heads of household, landlords or managers of hotels who accommodate foreign nationals on a temporary basis who stay in the kingdom legally, must notify the local immigration authorities within 24 hours from the time of arrival of the foreign national."
Please contact the Dormitory's Owner/House Master/Authorized Person to fill out the TM.30 at the Immigration website and then print out the TM.30 form for you. You will need to submit TM.30 form to extend your visa and complete the 90-day-report. The landlord can do it online.
The landlord must register TM.30 form by 24 hours after your move in. Otherwise, the landlord must pay for a fine. https://www.immigration.go.th/en/?p=14721
TM.30 Online registration: https://tm30.immigration.go.th/tm30/#/login