Short-term rentals in Thailand: the law, licences and risks

A common investment pitch in Thailand starts with a simple assumption: buy a condo in a tourist market, list it for nightly stays, and let the higher short-stay rate do the rest. The legal problem comes before the revenue calculation. Owning a residential unit does not automatically give the owner the right to operate it as temporary guest accommodation.

Thailand’s Hotel Act treats paid temporary accommodation as hotel activity unless an exclusion applies. One key exclusion is accommodation provided only on a monthly-paid basis or longer. That is why the market often talks about a “30-day rule”, although the statutory wording is better understood as a line between genuine monthly residential letting and short temporary stays.

Condominiums add another layer. The Department of Lands has specifically clarified that units in a registered condominium are not to be used for hotel business operations, and individual buildings also have registered regulations governing how units and common areas are used. A building full of online listings is therefore not evidence that the operating model is lawful.

For an investor, the correct order is legality first, income second. Confirm the project’s legal operating structure, the licence or exemption being relied on, the identity of the operator and the condominium regulations before treating short-stay income as part of the acquisition case. If those points are unclear, the nightly-rental model should be treated as an upside scenario at most, not as the foundation of the purchase.

The phrase “under 30 days equals a hotel” is a useful shortcut, but it is not the exact language of the Hotel Act. Section 4 defines a hotel broadly as paid temporary accommodation and then excludes premises established to provide accommodation only on a monthly-paid basis or longer. The legal distinction is therefore about genuine monthly accommodation, not a magic change in status at midnight on day thirty.

That matters because form and substance can diverge. A unit marketed for weekends, one-week stays or rotating holiday guests looks very different from a residential tenancy, even if the host labels the payment “rent”. Trying to engineer a 29-night booking around a slogan misses the core issue: what accommodation business is actually being carried on?

A genuine monthly-or-longer tenancy is much easier to analyse under the Hotel Act because it falls within the express Section 4 exclusion. It can still create other obligations, including condominium rules, lease terms, tax issues and foreign-guest reporting where applicable. Staying outside the hotel definition does not mean the rest of Thai law disappears.

As checked on 22 August 2026, this monthly-rental distinction remains the core statutory starting point. More complex arrangements — pooled units, a single hospitality operator, mixed-use projects or hotel-branded residences — should be reviewed on their actual documents. The booking length alone is not enough to establish that the structure is lawful.

If an operation is a hotel business, Section 15 of the Hotel Act requires a licence issued by the Registrar. The licence is tied to the relevant hotel and sits alongside building-use, safety and other regulatory requirements. A brochure saying “hotel concept” or “professionally managed” is therefore not proof that an individual unit may lawfully accept short-stay guests.

Thailand does have a small-accommodation route, and this is where older articles often mislead buyers. Ministerial Regulation No. 2 B.E. 2566 (2023), effective from 29 October 2023, increased the threshold from 4 rooms/20 guests to no more than 8 rooms and no more than 30 guests. But size alone is not enough: the accommodation must be notified to the Registrar, inspected and issued an acknowledgment. The acknowledgment has a five-year term.

That change is material for houses, homestays and genuinely small accommodation businesses, but it is not a blanket Airbnb exemption. The regulation was designed around small-scale accommodation earning supplementary income, and current Department of Provincial Administration guidance states that a juristic person cannot use this “non-hotel accommodation” route as an ordinary business model. An investor being told that a management company can simply place several units under the exemption should therefore ask for the exact legal basis.

The small-accommodation regime also has to be read with the law governing the property itself. In a registered condominium, the Department of Lands’ position on hotel use of condominium units remains a separate obstacle. A small room count does not erase the legal character of the building.

The cleanest non-hotel route for an ordinary residential unit is usually a genuine monthly-or-longer tenancy, subject to the building’s rules. If a project is designed to operate with a licensed hospitality component, the buyer should verify the licence, the area it covers, the operating entity and the contractual route by which the owner’s unit participates. Those are индивидуально для проекта facts, not conclusions that can be inferred from branding.

A Thai condominium has to be analysed on two levels: public law and the building’s own registered framework. In November 2023, the Department of Lands circulated guidance stating that units in condominium buildings cannot be used for hotel business operations. The reasoning is that the condominium regime is fundamentally residential, while permitted commercial areas do not convert ordinary residential units into hotel rooms.

This is why “everyone in the building is doing it” is weak due diligence. Widespread listings may show market demand, but they do not establish a licence, an exemption or legal permission. Thai authorities have also demonstrated that enforcement is not theoretical; in May 2025 the government publicly described continuing inspections and proceedings involving daily condo rentals and unlicensed hotels.

The condominium juristic person adds a practical enforcement layer. Registered regulations can govern guest access, keys, use of common facilities, nuisance, security and permitted use of units. A short-stay model can become unworkable through building enforcement even before a hotel-law prosecution is considered.

There are projects marketed as condo-hotels or hotel residences, but the label is not a legal category that answers every question. A buyer should separate title to the unit, the entity operating the hospitality business and the licence or building approvals supporting that operation. If the seller cannot show how those pieces fit together, short-stay revenue should not be treated as an established right attached to the unit.

The Hotel Act targets the person operating hotel business without the required licence. Section 59 applies to a breach of Section 15, so an owner should understand who actually operates the accommodation business under the contracts rather than assuming that a management agreement transfers every legal exposure to someone else.

The statutory maximum is up to one year’s imprisonment, a fine of up to THB 20,000, or both. There can also be an additional fine of up to THB 10,000 per day for as long as the violation continues. The Thai government repeated those same figures in its May 2025 enforcement communication on daily condominium rentals.

The consequences can also arrive through the building rather than through a criminal case. Complaints, access controls, demands to stop an activity and enforcement under condominium regulations can undermine the operating model quickly. The exact measures available to a particular juristic person depend on that building’s registered regulations and should not be assumed from another project.

For underwriting purposes, an illegal-rental penalty is not just another operating cost to put beside housekeeping and platform commission. If the short-stay model cannot be supported by the property’s documents, it should be removed from the base case. Current Thai legal advice should be taken on the specific project, operator and regulations before a material purchase commitment is made.