Thailand House Rental Contract: What to Include and the 2025 Law

A house rental contract in Thailand is a written agreement between a landlord and a tenant that sets the rent, deposit, term, and each side’s responsibilities, so both parties have proof if a dispute arises. This guide covers what the contract must contain, the 2025 rental law from the Office of the Consumer Protection Board (OCPB), and what to check before you sign. If you are looking for a house to rent or want to list one, Talata gathers rental listings in one place so you can compare locations and prices and contact owners directly.

What a house rental contract is, and why it needs to be in writing

Under Thailand’s Civil and Commercial Code, Section 537, a lease is an arrangement where the owner lets someone use a property for a set period in exchange for rent. When the property is a house, that agreement is a house rental contract.

Plenty of people rent on a handshake or a chat message and a bank transfer. The problem shows up later, when a tenant leaves mid-term, an owner holds back the deposit, or the two sides argue over a repair bill, and nothing on paper says what was agreed. Thai law is specific here. Section 538 states that a lease of real property needs written evidence signed by the party being held liable; without it, the agreement cannot be enforced in court. A complete written contract is not a formality. It is what makes the deal hold up when you need a court to back it.

Leases under 3 years vs. over 3 years

Term length trips up people who draft their own contracts. For a lease of three years or less, the landlord and tenant can sign a written agreement between themselves, and it is enforceable as it is.

For anything longer than three years, or a lease for the lifetime of either party, the law requires the contract to be made in writing and registered with the competent official at the Land Office in the district where the house sits. Skip the registration and only the first three years are enforceable, even if you agreed on ten. Anyone planning a long lease should budget for that registration step from the start.

What a house rental contract must include

A tight contract is judged by whether it is complete, not by how long it runs. A missing clause is usually where the dispute starts. A house rental contract should cover:

• Date and place of signing. The start date anchors the term and every deadline that follows.
• Landlord and tenant details. Full names, ID or passport numbers, and addresses of both sides, with copies attached. Both parties should be of legal age for the agreement to be valid.
• The property. House number, location, and size, plus an inventory of furniture and fittings if the house is let furnished. Photograph the condition before move-in as evidence.
• Lease term. Clear start and end dates, plus renewal terms and how much notice is needed if either side will not renew.
• Rent and payment. The monthly amount, the due date, and how it is paid. Write the figure in both numbers and words.
• Deposit and advance rent. The amounts held, the conditions for deducting against damage, and when the money is returned at the end.
• Utilities and common fees. Who pays for water, electricity, and any common-area charge, and whether it is metered or a flat rate.
• Breach and termination. What counts as a breach, late-payment penalties, and how much notice is required to end the lease early.
• Signatures and witnesses. Both parties sign, ideally with at least two witnesses, and the contract is made in two copies, one for each side.

The move-in inventory is the clause people skip most and regret most. A simple handover checklist that records the condition of the house, existing marks, and the items provided gives both sides something to compare against at move-out, which cuts arguments over what was damaged and when. The more precisely each clause is written, such as a daily late-payment penalty or exactly when the deposit comes back and what can be deducted, the tighter the contract and the fewer the disputes.

Thailand’s 2025 rental contract law: what changed

Beyond the Civil and Commercial Code, which covers every lease, a second layer applies to residential rental as a business: the OCPB announcement making residential building rental a "controlled-contract" business. The current edition, B.E. 2568, was published in the Royal Gazette on 6 June 2025, replaced the 2019 announcement in full, and took effect on 4 September 2025. It is what people mean by the "new rental law."

The change that matters most to owners is scope. The previous version applied to operators with five or more rental units. The 2025 edition lowers that to three or more units, whether in the same building or spread across several. Someone renting out one or two houses is not treated as a controlled business under this announcement, though the Civil and Commercial Code still applies to them.

Key points of the 2025 edition:

• Deposit and advance rent combined cannot exceed three months of the monthly rent for short-term monthly leases, or one year for leases charged annually.
• Utilities cannot be charged above the rates set by the electricity and waterworks authorities. Owners cannot mark them up.
• The deposit must be returned as soon as the lease ends. If the landlord inspects for damage first and finds none, it must be returned within 7 days of the lease ending and the property being handed back.
• Any clause that conflicts with the announcement has no legal effect, even if the tenant signed it, and this covers contracts made through online platforms as well.
• Invoices must be sent at least 3 days in advance of the due date, and the landlord is responsible for major repairs not caused by the tenant.

Because these rules touch both sides’ money and rights, anyone drafting a real contract should read the full announcement and the standard contract forms attached to it, published by the Office of the Consumer Protection Board (OCPB).

What to check before signing

A lease is a document both sides should read line by line, because once it is signed, "I didn’t know" is a hard argument to make.

For tenants

Before you pay anything, make sure the person letting the house actually owns it or has the right to let it, by checking the title deed and matching it against their ID. Read the deposit and penalty terms closely for anything one-sided. Photograph every corner of the house on move-in day in case damage is disputed at move-out. And if a clause conflicts with the rental-control rules, such as an unusually high deposit, that clause may not be enforceable even after you sign.

For landlords

Screening tenants early saves trouble later. Ask about work and the reason for moving, and keep a copy of their ID with the contract. Spell out the late-payment penalty and the termination terms. Make the contract in two copies signed on every page. And if you rent out three or more units, check that your contract matches the 2025 OCPB announcement, because any conflicting clause will not hold.

House vs. condo, room, and land rental contracts

The core structure of a lease is similar across property types, but the details differ, and knowing them helps you cover everything specific to each.

If you are drawing up a lease for a condo, a rental room, or land, look at the points specific to that type. On the condo side, for instance, check how the common-area fee is calculated and who pays it, since those differences affect how tight the contract is.

Why rent or list your house on Talata

Before the contract stage comes the harder part: finding the right house, or the right tenant. Talata gathers house rental listings from many locations in one place. Tenants can filter by budget, area, and property type, compare several homes side by side, and contact the owner directly with no middleman, so they see the full picture before booking a viewing.

Owners who want to let a house can list it themselves with photos, details, rent, and terms. The clearer the listing, the faster it reaches the right tenant. Once you have found the house or the tenant, use the components and checklist in this article to put a solid contract in place. Start listing or searching for a rental home on Talata.

Frequently Asked Questions

Can I write a house rental contract myself, and is it valid without witnesses?

Yes, you can draft it yourself; a lawyer is not required. It needs to be in writing, cover the terms, and be signed by both parties. Rental law does not strictly require witnesses, but having at least two adds weight if the contract is ever used as evidence in court, so it is worth including them.

For a lease over 3 years, where do I register it?

Make the contract in writing and register the lease with the competent official at the Land Office in the district where the house is located. Without registration, the lease is enforceable for only three years under Civil and Commercial Code Section 538. A lease of three years or less can be signed between the parties without registration.

Does a house rental contract need stamp duty, and how much?

Yes. A lease of real property is stamped at 1 baht for every 1,000 baht (or fraction) of total rent over the term, roughly 0.1% of the total rent. The lessor is responsible for the duty, and if total rent over the lease reaches 1,000,000 baht or more, it must be paid in cash to the Revenue Department.

If I rent out just one house, does the rental-control law apply to me?

No. The 2025 OCPB announcement applies only to operators letting three or more units. Someone renting out one or two houses is not a controlled business under it, but still has to make a proper contract under the Civil and Commercial Code.

How do the deposit and advance rent differ, and when is the deposit returned?

Advance rent is the next period’s rent paid early; the deposit is money held against damage or breach. They serve different purposes. The deposit is returned when the lease ends and there is no damage. For landlords who qualify as a controlled business under the 2025 edition, it must be returned as soon as the lease ends, or within 7 days of the lease ending and the property being handed back if they inspect for damage first, less only proven damage.