Contract Drafting & Review in Thailand.

Two questions decide most of a Thai contract's value

Before any clause is negotiated, two decisions determine how much the document is actually worth: which language version governs, and which forum decides a dispute.

The language question is not cosmetic. Bilingual contracts are normal in Thailand, and the two versions are rarely identical once translated. A contract that does not say which version prevails has built an argument into itself. A contract that says the English version prevails but will be litigated in a Thai court has created a translation exercise at the worst possible time.

The forum question follows from it. Thai court proceedings are conducted in Thai, on Thai documents. Arbitration can be agreed differently. Which is better depends on the counterparty, the amounts, and where the assets that would satisfy a judgment actually sit, which is a question worth answering before signing rather than after a breach.

Getting these two right is most of what a contract lawyer contributes on a simple commercial agreement. The rest is craft.

What review actually means

There is a real difference between reading a contract and reviewing one, and it is worth knowing which you are buying.

Reading produces a summary of what the document says. Reviewing produces a view on what it does: where the risk sits, which clauses would matter in the scenarios that actually happen, and what should change. The second is more useful and takes longer.

The scenarios that actually happen in Thai commercial practice are fairly predictable. Payment stops. Delivery slips. One party wants out early. A distributor is terminated and claims compensation. A supplier's parent changes. Someone uses information they were given for a different purpose. A contract that handles those six situations clearly is doing its job, whatever else it contains.

The clauses that carry the weight are therefore termination and its consequences, payment and remedies for late payment, limitation of liability, confidentiality, assignment and change of control, and the dispute clause. Force majeure earns its place too, and its drafting has been taken considerably more seriously since 2020.

Where a contract touches restricted activities there is a further layer, because the Foreign Business Act restricts foreign participation in listed activities and an agreement structured to deliver foreign control indirectly runs into the Act rather than around it. That interacts with shareholder agreements and with any foreign business licence in Thailand the business holds.

Formalities that are easy to miss

A Thai company must use "บริษัท" before its name and "จำกัด" after it, or the equivalent foreign wording, on its seal, signage, letters and other business documents. Failing to do so carries a fine of up to 20,000 baht plus up to 500 baht per day until it is corrected. Contracts signed in a trading name that is not the registered name create avoidable arguments about who the parties actually are.

Signature authority is the companion problem. Who may bind a Thai company is a matter of its registered directors and their authority as filed, and a counterparty is entitled to check. Verifying the other side's signing authority against the current company record is a five minute task that prevents a category of dispute entirely.

When a contract fails, the routes are contract disputes and, where money is simply not being paid, debt collection. For the wider practice, corporate lawyers in Thailand handle contracts alongside structure and transactions.

When to pay for a lawyer

Where the contract is long-term, where the amounts matter relative to the business, where the counterparty drafted it, and where a cross-border element makes enforcement uncertain.

Not every agreement needs review. A standard purchase order for a small amount from a familiar supplier does not repay the fee. The test is whether a bad version of this contract could hurt, and whether the person who drafted it was working for you.

Drafting and review are usually quoted as a fixed fee for a defined document, which makes them easy to compare. Negotiation is normally hourly, because its length depends on the other side. No credible published source gives professional fee ranges for this work in Thailand, so compare written scopes rather than headline figures.

This page is general information, not legal advice. What a contract needs depends on the transaction and the parties, so speak with a qualified professional.