There's no written contract — can I still sue?

In many cases, yes. A debt need not be on paper. Other evidence may prove it — transfer slips, chat messages acknowledging the debt, witnesses, or purchase orders. Some types of debt do require written evidence, so a lawyer will assess whether what you have is enough.

How long is the limitation period — is it really too late if I waited?

The limitation period depends on the type of debt; some are short, others run several years. If it lapses, the debtor can raise it as a defence and you can't recover. Don't leave it sitting — have a lawyer check the limitation on your specific debt before time runs out.

I won the case but the debtor still won't pay — what next?

Once you have judgment and the debtor doesn't pay within the deadline, you can apply for a writ of execution to locate and seize/attach the debtor's assets — bank funds, salary, land, or vehicles — and auction them to satisfy the debt. Success here depends on good asset investigation.

What kind of debt collection is illegal?

Collection that threatens, uses violence, shames the debtor, discloses the debt to outsiders, or contacts them at unreasonable times may breach the debt-collection law and carry penalties. Having a lawyer act through a proper demand letter is both safer and more effective.

Is suing over a debt slow and expensive?

It depends on the amount and complexity. Small debts may go through the fast, low-cost small-claims process. Many cases end in mediation with the debtor agreeing to instalments. A lawyer will assess the cost and your odds of recovery before you decide to sue.

Debt Collection, Suing a Debtor and Enforcement in Thailand: A Creditor's Guide 2026

When a debtor walks away — how to actually recover, not just win

Many creditors assume "win the case = get paid". In reality, recovery is a longer process, and the common mistakes are collecting the wrong way and losing leverage, letting the claim lapse past its limitation period, or winning the case but finding no assets to seize. This guide gives you the overview from demand to enforcement, so you plan it right from the start.

This is general information; the details and limitation periods depend on your type of debt. Consult a lawyer to be sure.

Step 1: Demand payment the right way (before suing)

Before suing, the key step is issuing a demand letter (notice) giving the debtor a deadline to pay. A lawyer-issued demand letter does several things:

Serves as evidence that you demanded payment, for use in the suit
Puts the debtor in default, which affects interest
In many cases prompts the debtor to pay or negotiate instalments once a law firm is involved

A caution — debt collection is regulated by law. Threats, public shaming, abusive language, or disclosing the debt to others can turn the creditor into the wrongdoer. Having a lawyer collect the correct way is safer and more credible.

Step 2: Check the limitation period before it's too late

Each type of debt has its own limitation period. If it lapses, the debtor can raise it as a defence and the court may dismiss — even though the debt is real. This is why you should not "leave it for now": if the debtor starts stalling, have a lawyer check how much time remains and whether any act can interrupt the limitation period.

Step 3: File suit

If demand fails, the next step is a civil suit for judgment ordering the debtor to pay.

Small debts may go through the small-claims process — fast and low cost.
Mediation ends many cases, with the debtor agreeing to pay by instalments — sometimes better than a lengthy enforcement.
The suit requires complete evidence of the debt, the amount, and the demand.

Step 4: Asset investigation and enforcement

This is the step creditors most often overlook, yet it matters most for actually getting paid. Once you have judgment and the debtor still won't pay, you can:

Apply for a writ of execution within the period set by law
Investigate assets — find the debtor's land, house, vehicles, bank funds, or salary
Seize or attach those assets and auction them to satisfy the debt

Success here turns on accurate asset investigation — if no assets are found, the judgment is just paper. An experienced enforcement team knows where to look and how to enforce most cost-effectively.

What evidence a creditor should keep

Loan/sale contracts or purchase orders (if any)
Proof of transfer or delivery of goods
Messages, chats, emails where the debtor acknowledged the debt or asked to pay in instalments
The debtor's ID/address details
Any known information about the debtor's assets

How we help

Our firm handles end-to-end debt recovery — from demand letters and litigation to asset investigation and enforcement — across Khon Kaen, Isan, and Bangkok. See more on civil litigation and enforcement in Khon Kaen, or dispute mediation, which can sometimes recover money faster without a drawn-out fight.

Summary

Effective recovery is about getting the sequence right — demand lawfully, check the limitation period, sue with solid evidence, and above all investigate assets so you can enforce and actually collect. The earlier you start, the better your odds.

If your debtor is starting to stall, talk to our team or send the debt details for an initial assessment. We'll plan the most cost-effective way to recover your money.