Thailand Lease Agreements
A residential lease in Thailand has to be in writing to be enforceable, and if it runs over three years it has to be registered. Between those two rules sits a set of terms that decide whether a deposit comes back — and since September 2025, a one-month deposit cap that now bites at three units, not five.
First, which rules apply
Thai residential leasing splits at three units. Below the line, terms are largely what both sides agree. At or above it, a set of mandatory terms applies and cannot be contracted around — including a deposit cap that most private-market habits break. The line moved down from five units in September 2025, so a landlord who was outside these rules last year may be inside them now.
An owner renting out one condo, or two. The ordinary Civil and Commercial Code rules apply and the terms are largely whatever both sides agree.
- Deposit is by agreement
- Two months' deposit plus one month's rent in advance is the Bangkok market norm — convention, not law.
- Must be in writing to be enforced
- A lease of immovable property cannot be enforced by court action without written evidence signed by the party being held to it.
- Over three years must be registered
- An unregistered lease longer than three years is enforceable for three years only. Registration at the Land Office costs 1% of the total rent plus 0.1% stamp duty.
- Thirty years is the ceiling
- The maximum term for a registered lease of immovable property. Longer terms are cut back to thirty years.
- Notice follows the contract
- Whatever notice period you write in is what applies. If the lease is silent, the Code's default rules fill the gap.
Anyone leasing three or more residential units — condos, apartments, houses or rooms, in one building or across several — counts as running a controlled leasing business under the 2025 notification. These terms are mandatory and cannot be contracted around. The threshold was five units until September 2025, which is why a lot of older advice is now wrong.
- Deposit capped at one month's rent
- Deposit and advance rent together are also capped: no more than three months' rent on a short-term lease, or one year's rent where a long-term lease is paid annually. The two-months-plus-one market habit does not survive here.
- Deposit returned on a deadline
- Immediately at the end of the lease once the property is handed back. Where the landlord has to check for damage, within seven days if there is none, and within fourteen days where repair costs are properly deducted.
- Utilities at the state tariff
- Electricity and water may only be charged at the rate the state provider charges. Marking up utilities is prohibited, and service fees must be cost-based with a stated calculation.
- Early termination after half the term
- A tenant who has occupied at least 50% of a fixed term may end the lease on thirty days' written notice, settling what is owed to that date. The landlord cannot terminate without a genuine breach and written warning.
- Thai contract, with an inspection report
- The contract must be in Thai, legibly formatted, with a signed move-in condition report attached and a copy given to the tenant. The inventory is not optional here.
- Non-compliance is criminal
- Using a contract that breaches the notification carries up to one year's imprisonment, a fine of up to THB 200,000, or both, under the Consumer Protection Act.
The three-year rule
A lease of immovable property longer than three years must be registered at the Land Office. Leave it unregistered and it is enforceable for three years only — so a client who negotiated five years of security has three. Registration costs 1% of the total rent over the term, plus 0.1% stamp duty. Thirty years is the maximum term; anything longer is cut back to thirty.
The clauses every lease needs
Twelve items. A contract missing any of them is a contract with an argument built into it.
- The parties, in full
- Full legal names, ID or passport numbers, and registered addresses. For a company landlord, the company name and the signatory's authority to sign.
- The property, precisely
- Building, unit number, address, and title deed or unit reference. “Condo in Thonglor” is not an identification.
- Term and start date
- Exact start and end dates. If it runs over three years, it must be registered at the Land Office to bind beyond three.
- Rent, and how it's paid
- Amount, due date each month, payment method, and the account it goes to. Note any grace period before late fees apply.
- Deposit and advance rent
- How much is held, what it covers, and the deadline for returning it after handover. Put a number of days on it.
- Utilities and common fees
- Who pays electricity, water, internet and common area fees. State the rate — overcharging on utilities is where most disputes start.
- Repairs and maintenance
- The usual split is structural and major appliances to the landlord, minor and consumable to the tenant. Set a baht threshold so it isn't argued each time.
- Condition on handover
- An inventory list with photographs, signed and dated by both sides on move-in day. This is what the deposit conversation returns to.
- Termination and notice
- Notice period each side must give, and what counts as a breach. Also what happens if the tenant leaves early.
- Renewal terms
- Whether there's a right to renew, on what notice, and how any rent increase is calculated.
- Subletting and occupants
- Who may live there, and whether short-term subletting is allowed. Most condo juristic offices ban daily rentals outright.
- Language and governing law
- If there's a Thai and an English version, say which prevails. Thai courts work from the Thai text.
Where agents get caught
Six drafting habits that surface months later, usually as a deposit dispute your client expects you to resolve.
Working from the old five-unit threshold
Instead: Since September 2025 it is three units, not five. Landlords who were outside the rules for years are inside them now, and most do not know it.
Taking two months' deposit from a covered landlord
Instead: Count the landlord's units before you draft. At three or more, one month is the maximum deposit and the excess is unenforceable — with criminal exposure attached.
No photographic inventory on handover day
Instead: Twenty minutes of photos, signed and dated by both sides, settles nearly every deposit argument before it starts. For a covered landlord an attached condition report is mandatory, not good practice.
Leaving the utility rate unstated
Instead: Write the per-unit rate into the contract. Vague wording is what lets a landlord bill 8 baht for 4-baht electricity.
A three-year-plus lease left unregistered
Instead: Register it at the Land Office, or your client's five-year security is really three.
English-only contracts
Instead: Have a Thai version and state which language prevails. A Thai court will work from the Thai text regardless.
No named end date for the deposit return
Instead: Put a deadline in days on the return. “Promptly” is not something a tenant can enforce.
Frequently asked questions
What must a Thai rental contract include?
The full details of both parties, a precise identification of the property, exact start and end dates, the rent and payment terms, the deposit and when it is returned, who pays which utilities and at what rate, the repair split, a signed condition inventory, notice periods, and which language version prevails. A lease of immovable property also has to be in writing to be enforceable by court action.
How much deposit can a landlord ask for in Thailand?
It depends on how many units the landlord rents. An owner with one or two units can ask what they can negotiate, and the Bangkok norm is two months' deposit plus one month's rent in advance. A landlord with three or more residential units is a controlled business under the 2025 leasing notification, which caps the deposit at one month's rent — and caps deposit and advance rent combined at three months' rent on a short-term lease.
Did the Thai rental rules change in 2025?
Yes, and substantially. The Contract Committee notification B.E. 2568 came into force in September 2025 and replaced the previous framework. The threshold for being a controlled leasing business dropped from five units to three, the deposit and advance-rent caps were rewritten around a short-term and long-term split at three years, and non-compliance now carries up to a year's imprisonment or a THB 200,000 fine. Advice written before late 2025 is out of date on all three points.
Does a lease in Thailand need to be registered?
Only if it runs longer than three years. An unregistered lease over three years is enforceable for three years and no more, so a five-year lease left unregistered gives your client three years of security. Registration happens at the Land Office and costs 1% of the total rent over the term plus 0.1% stamp duty. Thirty years is the maximum term.
Can a landlord charge more than the meter rate for electricity?
Not if they rent three or more residential units. Those landlords may only pass through electricity and water at the rate the state provider charges, and any service fee has to be cost-based with a stated calculation. Owners below the threshold are not bound by the same rule, which is why the contract should state the per-unit rate explicitly either way.
Can a tenant break a lease early in Thailand?
Where the landlord is a controlled business, a tenant who has occupied at least half of a fixed term may end the lease on thirty days' written notice, settling what is owed to that date. Below the threshold it comes down to what the contract says, so an early-termination clause is worth negotiating before signing rather than after.
Does the contract have to be in Thai?
For landlords with three or more units, yes — the contract must be in Thai, legibly formatted, with a signed move-in condition report attached and a copy given to the tenant. More generally, a Thai court works from the Thai text, so where there is a bilingual contract the agreement should state which language prevails.
This guide describes the general position under the Thai Civil and Commercial Code and the Contract Committee notification B.E. 2568 (2025), in force since September 2025. It is not legal advice on a specific contract, and which rules apply depends on the landlord's circumstances. Have a Thai lawyer review any lease of real value.
Next: getting paid for it
Standard commission rates in Thailand, and the clauses that decide whether the fee actually arrives.