📘 Lease Agreement Law in Thailand: Key Provisions under the Civil and Commercial Code
A lease agreement is a legal contract in which the lessor allows the lessee to use or benefit from a property temporarily in exchange for rent. The governing law is the Civil and Commercial Code, Book V, Sections 537–571, which applies to both immovable (real estate) and movable property.

📌 Legal Definition of a Lease Agreement in Thailand
According to Section 537, a lease agreement is “a contract whereby one party agrees to let another party use or benefit from a property temporarily, and the other party agrees to pay rent in return.”

Essential components:

• Lessor and lessee (contracting parties)

• Leased property

• Rental amount

• Lease duration

📆 Maximum Duration of Lease Agreements
As per Section 540, a lease of immovable property (such as land or buildings) is valid for up to 30 years. Even if a longer term is agreed, the law only recognizes 30 years. A new contract must be made to renew the lease.

For commercial or industrial leases, the term may be extended to up to 50 years under specific laws — subject to verification with the Land Office or local authorities.

📝 When Lease Agreements Must Be Registered
Under Sections 538–539, if the lease term exceeds 3 years or is likely to exceed 3 years, it must be made in writing and registered at the Land Department.
If not registered, the lease is only legally valid for 3 years, regardless of the agreed term.

⚖️ Rights and Obligations of Lessors and Lessees
Lessor (Sections 546–563):

• Must deliver the property in usable condition

• Maintain the property during the lease

• Can terminate the lease early if the lessee breaches the contract

Lessee:

• Must use the property with care

• Cannot sublease or alter the property without permission

• Must pay rent on time — failure may result in termination

🚪 Termination and End of Lease
A lease may end due to:

• Expiry of the lease term

• Destruction or unusability of the property

• Death of the lessee (unless heirs are contractually allowed to continue)

• Serious breach of contract (e.g., unpaid rent)

👉 In the case of farmland, lessees have the right to harvest crops before vacating the land.

📘 Lease Law in Thailand: What You Need to Know under the Civil and Commercial Code

🔍 Interpretation by the Supreme Court
In several Supreme Court rulings (e.g., 6834/2017 and 5959/2001), Thai courts have emphasized the substance of the agreement over the form. In other words, if it can be proven that both parties mutually agreed, the property was handed over, and rent was paid, the court may recognize the lease as legally binding—even if some documentation is missing.

However, having a written and properly registered contract greatly reduces practical risks.

🧾 Summary

• A lease agreement should clearly state the parties involved, property details, lease duration, rental amount, and terms and conditions.

• The agreement should be in writing and registered at the Land Office when required.

• Both parties’ rights and obligations—legally and practically—should be considered.

• Prepare supporting documents such as a copy of the title deed, ownership documents, land tax forms, and rent receipts.

• If you need a ready-to-use Thai-English lease agreement in editable Word format, with correct legal references and Land Office registration guidance, we can provide that instantly.