TM30: the 24-hour foreign-guest notification every Koh Phangan landlord — and owner-occupier — must file

Do you have to file anything with Thai Immigration just because a foreign tenant, guest, or you yourself as a foreign owner, is staying at a Koh Phangan property? Yes — this is the TM30 notification, and it's a separate duty from the Hotel Act licensing question that governs whether you can legally rent out a villa short-term. TM30 applies regardless of how long the stay is or whether any money changes hands.

What the law actually requires

Section 38 of the Immigration Act B.E. 2522 (1979) names four categories of people responsible for filing: the householder, the property owner, the possessor of a dwelling, or a hotel manager. Whichever of these applies to you must notify the local Immigration office within 24 hours of a foreign national arriving to stay at that address — using form TM30 (ตม.30), online through Immigration's TM30 portal or the in-country "Section 38" reporting channel, or in person at the district Immigration office.

• It applies to a foreign owner living in their own house, not only to landlords with tenants — there is no ownership exemption. Each time you re-enter Thailand and return to your own registered address, a fresh notification is generally expected.
• It applies to short-stay guests and long-term tenants alike — a two-week Airbnb booking and a one-year lease tenant both trigger the same 24-hour duty on whoever holds the property.
• Hotels and Hotel Act-licensed properties file guest reports automatically through their own registered system, which satisfies TM30 for those guests — but this only covers properties actually operating under a hotel licence or registered exemption certificate, not an individual owner or landlord renting privately.
• Some Immigration offices relax the re-filing requirement for a guest who leaves briefly on a multiple-entry visa or valid re-entry permit and returns to the same address — but this is discretionary local practice, not a statutory exemption, so confirm with your local office rather than assuming it applies.

Why the paperwork matters more than the fine

The fine itself is modest and inconsistently cited across sources — commonly reported in the ฿800–2,000 range for an individual owner or landlord, with higher amounts for a non-compliant hotel operator. Confirm the current figure with a Thai lawyer rather than relying on any single online source, since cited amounts vary. The real cost of skipping TM30 is procedural: Immigration checks the TM30 record before processing a visa extension, a 90-day address report, or a re-entry permit for the foreign national staying at that address. A missing or outdated filing can stall a tenant's or your own visa paperwork at exactly the moment you need it to go through quickly.

The acknowledgment slip is what you actually need to keep

Each successful TM30 filing produces a receipt or acknowledgment slip (sometimes referred to informally as the "TM30 form" itself). Keep a copy — a tenant or guest may need to present it alongside their own paperwork for a visa extension or 90-day report, and a property manager should be able to produce it on request as proof the address is correctly registered. See Managing a rental villa remotely: how to vet a property-management company for how TM30 compliance fits into what a manager should be handling on your behalf.

TM30 is easy to treat as an afterthought because the fine is small — but it's the paperwork Immigration checks first. Whether you're renting out a villa, housing a long-term tenant, or simply living in the home you bought, file it within 24 hours and keep the slip.