Debt Lawsuit
Assawin Law Office · Licensed Thai Attorney No. 1444/2556
Debt Collection Lawyer in Bangkok
Loan and Unpaid Invoice Lawsuits
Lent money that was never repaid? A customer refusing to pay for goods or services? We handle everything from demand letters and lawsuits to judgment enforcement, with our own in-house asset tracing team. Operated as a registered company by Assawin Thai Law Advising Co., Ltd.
Service area: Bangkok, Nonthaburi, Pathum Thani, Samut Prakan, Samut Sakhon and Nakhon Pathom
Assawin Thongkaw
Managing Attorney, Assawin Law Office
Managing Director, Assawin Thai Law Advising Co., Ltd.
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No. 1444/2556 · Verifiable
Registered Company
Assawin Thai Law Advising Co., Ltd.
Company Registration
No. 0105567153081
Tax Invoices Issued
VAT-registered
Licensed Thai Attorney
License No. 1444/2556
When Can You Sue a Debtor in Thailand?
We file loan recovery lawsuits, unpaid invoice claims and other debt cases, for both personal and business debts. Cases can be filed at the Civil Courts and District Courts in Bangkok, as well as Provincial Courts in the surrounding provinces. If you have evidence that the other party owes you money, such as a contract, bank transfer slip or a message acknowledging the debt, send it for review. Once you win, our team can handle judgment enforcement right away.
Unpaid Personal Loans
You have a loan agreement, or transfer records and messages acknowledging the debt
Unpaid Invoices for Goods
Goods delivered but not paid within the credit term, with delivery notes or invoices
Unpaid Service Fees
Work completed or delivered, but the client has not paid as agreed
Bounced Cheques
You received a cheque as payment, but the bank refused to honor it
Missed Installments
The debtor signed a payment plan or debt acknowledgment but stopped paying
Unpaid Rent
A tenant of a house, building or commercial space owes several months of rent
Trace the Debtor's Assets Before Filing
Avoid Winning a Case but Getting Nothing
A court judgment orders the debtor to pay, but if the debtor has no assets to seize, you may spend money and time without recovering anything. That is why we recommend checking the debtor's assets before deciding to sue.
Suing Without an Asset Check
You don't know whether the debtor owns land, vehicles or bank deposits
You win the case, but there is nothing to enforce against
Costs and time are spent with no money recovered
Asset Tracing Before Filing
We check the debtor's land and vehicles nationwide
You know in advance whether the case is worth pursuing
After judgment, assets can be seized or garnished right away
We have our own asset tracing and enforcement team, handling everything from pre-filing checks to asset seizure, with no need to hire multiple firms.
Asset Tracing Service →How a Debt Lawsuit Works, from Filing to Enforcement
Your lawyer keeps you updated at every step.
Send Documents
Send your evidence and debtor details on LINE, or meet us at our office
Case Review and Asset Check
We review your evidence, the limitation period and the debtor's assets
Demand Letter
Our lawyer sends a formal demand for payment within a set deadline
File the Lawsuit
We draft the complaint and file it with the competent court
Mediation or Trial
Settlement through court mediation, or a trial through to judgment
Enforcement
Seizure or garnishment of the debtor's assets under the judgment Learn more
Costs of Suing a Debtor in Thailand
Costs depend on the amount owed, the evidence available and the number of debtors. Your lawyer will review your case and confirm all costs in writing before any work begins.
Attorney Fees
Drafting the complaint, representation in court and handling the case through to judgment
Court Fees
Paid to the court at rates set by law, calculated on the amount claimed
Service of Process
Delivering the summons and complaint to the debtor, based on the debtor's address
Asset Tracing (Optional)
Checking the debtor's land and vehicles nationwide before you decide to sue
Which Cases Take Less Time and Cost Less?
Debt cases with a clear contract or transfer records, where the debtor does not contest the claim, usually take less time and cost less than disputed cases. Your lawyer will give you an estimate before work begins.
Our Commitments
All costs confirmed in writing before work begins
No hidden charges during the case
An honest answer if your case is not worth pursuing
A formal engagement with a registered company, Assawin Thai Law Advising Co., Ltd.
Receipts and tax invoices that corporate clients can use for accounting
Want to know the costs for your case? Send us the details on LINE and our lawyer will review them.
Ask About Costs on LINE Or see other options on our Contact pageDocuments to Prepare Before Suing a Debtor
Photos or screenshots sent on LINE are fine. You don't need every item on the list.
Personal Loans
- Loan agreement or debt acknowledgment
- Bank transfer slips or proof of payment to the debtor
- LINE, WhatsApp or SMS messages where the debtor admits the debt
- Records of any past repayments (if available)
- Debtor's ID or passport copy, address or phone number
Trade Debts and Service Fees
- Quotation, purchase order or service agreement
- Delivery notes, invoices or tax invoices
- Proof of delivery of goods or completed work
- Emails or messages demanding payment and the debtor's replies
- Debtor's company affidavit (if available)
Debt Lawsuits in Bangkok and Surrounding Provinces
Our office is in Bueng Kum, Bangkok. We handle cases in Bangkok courts and in the surrounding provinces.
Courts in Bangkok
Courts in Surrounding Provinces
Including Provincial Courts and District Courts in these provinces. For cases in other provinces, ask us on LINE.
Which court? Generally, a case can be filed at the court where the debtor is domiciled, or where the cause of action arose, such as where the contract was made or goods were delivered.
Civil Court or District Court? Claims of up to 300,000 baht are filed at a District Court. Larger claims are filed at a Civil Court or Provincial Court.
Why Choose Assawin Law Office
Every stage of your debt case handled in one place, from asset tracing to asset seizure.
In-House Asset Tracing
We check the debtor's assets before filing, with no need to hire another firm
Honest Case Assessment
We tell you upfront whether your case is worth pursuing
Costs Confirmed in Writing
Scope of work and costs are agreed clearly before we start
Updates in English
We update you on LINE whenever there is progress in your case
Frequently Asked Questions About Suing a Debtor
Click a question to see the answer.
QCan I sue if I lent money without a loan agreement?+
Under Thai law, a loan of more than 2,000 baht must be evidenced in writing and signed by the borrower to be enforceable in court. It does not need to be a formal contract. Chat messages or emails in which the debtor acknowledges the loan may be accepted, depending on the facts of each case.
If you have no written evidence at all, our lawyer can suggest other options, such as asking the debtor to sign a debt acknowledgment.
QWhat is the limitation period for loans and trade debts?+
The limitation period for loans is 10 years. Claims by businesses for the price of goods or services generally have a limitation period of 2 or 5 years, depending on the nature of the transaction.
The limitation period can be interrupted, for example when the debtor acknowledges the debt or makes a partial payment. Have a lawyer check as soon as possible, because once the period expires, the claim can no longer be filed.
QHow long does a debt lawsuit take?+
It depends on whether the debtor contests the claim. If the debtor does not appear in court or admits the debt, the case is usually resolved quickly. If the debtor files a defense, a trial is needed and the case takes longer. Many cases settle through court mediation. Our lawyer will give you an estimated timeline at the start.
QCan I sue if the debtor has moved or cannot be contacted?+
Yes. The court sends the summons to the debtor's registered domicile. If it cannot be delivered, the court may allow other methods of service permitted by law. We can also help locate the debtor's current address.
QWhat if I win but the debtor has no money?+
A creditor may enforce a judgment within 10 years from the date of the judgment. During this time, the debtor's assets can be traced periodically. When assets such as land, vehicles, bank deposits or salary are found, they can be seized or garnished as permitted by law.
QDo I need to attend court myself?+
Your lawyer handles almost every step on your behalf. However, if the debtor contests the case and a trial is held, you may need to testify as a witness. We will prepare you and inform you of hearing dates in advance. Court proceedings are in Thai, and an interpreter can be arranged if you testify.
QCan a foreigner or foreign company sue in Thailand?+
Yes. Foreign individuals and companies can file civil claims in Thai courts. Documents in a foreign language must be translated into Thai for the court, which we can arrange.
If you are outside Thailand, you can appoint us by power of attorney. A power of attorney signed abroad generally needs to be notarized and certified by the Thai embassy or consulate. We will advise on the exact requirements for your case.
The answers above are general information. The outcome of each case depends on its facts and evidence.
Send Your Documents for a Case Review
Tell us briefly what happened and attach your evidence on LINE. Our lawyer will assess whether you can sue, whether to trace assets first, and confirm the costs before any work begins.
Assawin Law Office Operated by Assawin Thai Law Advising Co., Ltd.
Company Registration No. 0105567153081
Address: 33 Interest Building, 2nd Floor, Rooms 201–202, Soi Prasert-Manukitch 48, Khlong Kum, Bueng Kum, Bangkok 10240,Thailand
Office Hours: Monday – Friday, 8:00 – 18:00 (Bangkok time, GMT+7)
Phone: +66 65-198-9365 (within Thailand: 065-198-9365)
Japanese Desk: +66 64-731-0197
LINE: @opu7105w
