Land and Building Tax and Rental Income Tax in Thailand.

What land and building tax in Thailand is, and who collects it

Land and building tax in Thailand is charged every year on the value of the land and the buildings you own, and it is collected by your local authority rather than by the Revenue Department. Municipalities, subdistrict administrative organisations, Bangkok and Pattaya each assess and bill the property that sits inside their own boundary. The rules come from the Land and Building Tax Act B.E. 2562, published in full by the Department of Lands.

Two different bills follow from owning Thai property, and it pays to keep them apart. The annual tax is charged on the property itself, whether or not it earns anything. Income tax is charged on the rent, if you let the property out. This guide covers both. Whatever the Land Office charges on the day a property changes hands is a third matter, belonging to the transaction rather than to the year.

Who pays land and building tax in Thailand, and what it is charged on

The person liable is the owner of the land, the owner of the building, the owner of a condominium unit, or whoever possesses or uses land and buildings that belong to the state. Liability is judged as at 1 January, so whoever holds the property on New Year's Day carries that year's bill. Nationality does not come into it, and neither does residence.

The tax base is the appraised capital value of the land and the building, taken from the Treasury Department's valuation rather than from the price you paid or the price the market would pay today. The local authority surveys the property, records how it is being used, and sends you the numbers it intends to work from. That is set out in the Secretariat of the House of Representatives' summary of the Act, which also covers what counts as taxable property.

Taxable property runs wider than most people expect. Land includes mountain ground and ground covered by water. Buildings include condominium units once the unit title has been issued, and houseboats that someone lives in or holds for profit. A building still under construction and not yet in use is not taxable.

The tax follows ownership on paper, which matters when the paperwork is unusual. A 30-year registered lease is not ownership of the land, so a lessee stands differently from a title holder. The difference between leasehold and freehold therefore decides who receives the bill.

Company-owned property sits in the same system but usually lands in a different use category, because a company rarely occupies a home as a residence. That single classification point often moves the rate by an order of magnitude.

The four use categories and the rate ceilings

Everything is sorted into one of four use categories, and the Act sets a maximum rate for each. These are ceilings. The rate a local authority actually charges sits at or below them.

The rate actually collected has been set by royal decree since tax year 2022. A local authority that wants to charge more than the decree may pass a local ordinance to do so, with the approval of its provincial land and building tax committee, but it can never go above the statutory ceiling.

The band rates that can be confirmed from the published decree cover the case most readers are in: a home the owner lives in, where the owner is an individual and their name appears in the house registration.

Those figures come from the Royal Decree of 13 December 2021 on land and building tax rates, issued under section 37 of the Act, and they carry forward the rates the Act itself used in its first two years.

The decree splits the other categories into value bands in the same way. The figures that bind you are the ones your own local authority publishes for its area before the tax year opens, and a tax adviser can check which band the decree puts your property in.

Exemptions and reliefs, and where they stop

Some property is outside the tax altogether: property of the state, of the United Nations, of embassies and consulates, of the Thai Red Cross, religious property, public cemeteries and crematoria, and property held by foundations and public charities, in most of those cases only where the property is not used to earn a return.

For ordinary owners the relief works as a deduction from the tax base rather than as an exemption from the tax:

The residential relief is the reason most Thai homeowners pay nothing. It also has a condition attached that trips up foreign owners: your name has to be in the house registration for that address. A property you own but are not registered at falls outside it.

The relief covers one main residence. A second condominium, a holiday house, or a unit bought to let gets no threshold, though the decree still has a residential band for a home that is not the owner's own. Reductions of up to 90 percent of the tax are available by royal decree for a defined list of uses, including schools and universities, sports grounds, zoos, amusement parks and public car parks, and none of those describes a private home.

The vacant-land category exists for a reason. Land left idle attracts the highest ceiling in the Act, and the aim is to make land banking expensive rather than to punish neglect.

Deadlines, penalties, and the block on transferring

The Act sets a fixed annual calendar, and the Ministry of Interior has pushed it back by ministerial announcement in most recent years. The 2026 tax year shows the pattern.

The announcement extending the 2026 timetable is reproduced by local authorities across the country. Because the dates have moved in most recent years, April is the statutory default and the live date is worth confirming with the office that bills you.

Paying late costs two separate charges. There is a penalty on the tax, and on top of it a surcharge that runs with time.

That middle deadline is the one printed in the warning letter, and it is set locally. The notice one municipality published for the 2026 tax year gives 15 days, and the surcharge runs at 1 percent a month of the unpaid tax, with part of a month counted as a whole month. Local authorities can also seize, attach and auction property to recover the tax.

The consequence that catches people out is quieter than any of that. Unpaid land and building tax is reported to the Land Office, and land transactions can be blocked until it is cleared. An unpaid bill from a year you were not in the country tends to surface at the worst possible moment, on the day of a sale or a mortgage registration. Clearing the annual tax well before the paperwork starts is what avoids it, and that is a point selling Thai property as a foreigner turns on.

Rental income tax in Thailand: what the Revenue Code catches

Rent is taxable income in its own right, and it has nothing to do with the annual land and building tax. For nightly and weekly lettings the tax question arrives alongside a licensing one, which short-term rental regulation in Thailand covers. Under section 40(5)(a) of the Revenue Code, money or any other gain derived from the rent of property is assessable income. It falls into category 5, the letting-of-property category.

Section 41 settles the question foreign owners ask most. Income from a property situated in Thailand is taxable here whether the money is paid inside or outside Thailand. Being non-resident does not remove the liability on Thai rent; the 180-day residence test in the same section changes what else you are taxed on, not this.

Section 40(5) gives the assessment official a power worth knowing about. If the officer has reason to believe rent has been under-declared, they may assess the income at a reasonable market rent instead, and the assessed figure stands as the taxable amount. Declaring a nominal rent on a property that plainly earns more therefore carries real assessment risk.

Rent on a property you own outside Thailand is a different question, governed by the rules on foreign income brought into the country, and it is not covered here.

A refundable deposit is not rent, though it is often paid in the same transfer. How a deposit is treated at the end of a tenancy is a separate matter, covered in rental deposits and tenant rights.

Deductions, rates and filing dates for rental income

You are taxed on what is left after a deduction, and the Revenue Department allows a standard percentage that varies with the kind of property let.

What remains is added to your other assessable income and taxed at the progressive personal rates, which rise to 35 percent at the top band. Two returns fall due in a year with rental income: a half-year return by the last day of September covering the first six months, and the annual return by the last day of March following the tax year. The Revenue Department sets out the deductions, the rates and both filing dates on one page.

Where a company rents your property, it withholds 5 percent of the rent and pays that to the Revenue Department on your behalf. The amount withheld is a credit against your liability rather than an extra tax, and you claim it back on the annual return. Individual tenants renting a home generally do not withhold, so a landlord letting to a private tenant receives the full rent and settles the whole liability themselves.

Missing that credit is a common and expensive oversight, because nothing prompts you to claim it. Collecting the withholding certificates from a corporate tenant and matching them to the return is the practical work behind withholding tax filing in Thailand and the annual personal income tax filing in Thailand.

The house and land tax this replaced

Searches for "house and land tax" still turn up regularly, and the term is simply retired. The house and land tax under the 1932 Act, and the local development tax under the 1965 Act, were both replaced by the Land and Building Tax Act B.E. 2562. Collection under the new Act began on 1 January 2020.

The old regime had run for decades without being brought into line with modern property values, and it taxed a different thing: annual rental value rather than capital value. If a document, a listing or an agent still refers to house and land tax, they mean the annual bill described here.

The one-off taxes at the Land Office are a separate bill

The costs charged on the day a property changes hands are a distinct family: the transfer fee, stamp duty, specific business tax, and withholding tax on the seller's proceeds. They are assessed and collected by the Land Office at registration, they are one-off, and they have nothing to do with the annual cycle above.

Because the two get confused constantly, they are covered separately in what you pay at the Land Office when property changes hands. If you are working out the full cost of a purchase, read that alongside buying a condo in Thailand as a foreigner, which covers the ownership rules a foreign buyer has to satisfy before any of these taxes become relevant.

Getting the annual bill and the rental return checked

Two questions decide most of what an owner pays, and neither is obvious from the outside. The first is which use category the local authority has put the property in, because that choice moves the rate more than the value does. The second is whether the residential relief applies, which turns on the house registration rather than on how you think of the place.

A tax adviser can check the classification on the assessment notice against how the property is actually used, and can lodge an objection with the local authority where the two do not match. They can also confirm whether a half-year return is due on your rent.

If the question is about who owns what, whether a structure holds up, or whether a bill can be resisted, it belongs with a lawyer instead. Property lawyers in Thailand handle title and ownership structure. Tax lawyers in Thailand handle assessments and disputes with a revenue authority. For routine annual filing, tax consultants in Thailand are the cheaper and usually sufficient option.

Bring the assessment notice, the title document and the house registration to the first conversation. Those three papers answer most of what anyone will need to ask.