Business Services
Demand Letters for Unpaid Debts
Demand it the right way, before you lose ground in court
Business Services
Demand it the right way, before you lose ground in court
Leaving an unpaid debt alone is not the same as waiting to sue later, because three things move at once: default interest that has not started running, evidence that fades every month, and a limitation period that never stops. A demand letter issued by a lawyer is therefore more than a reminder — it fixes a clear payment deadline, puts the debtor formally in default, and becomes the first piece of evidence in the file if the matter does go to court. We issue demand letters in our capacity as your lawyers: checking the underlying debt and the limitation period before anything is sent, choosing a deadline that suits the type of debt, sending it in a way whose receipt can be proven in court, and working within the restrictions of Thailand's debt-collection law so that the demand never turns into a case against you.
What we cover
Loans, personal advances, and overdue trade receivables
Unpaid fees, service charges, and instalments owed by customers
Demand letters on bounced cheques, before criminal proceedings
Overdue rent and contractual damages
Compensation claims arising from wrongful acts and accidents
Checking the debt and the limitation period first, then serving it provably
Talk to us about this
Free initial consultation. Tell us what your business needs and we'll map the steps and a quote.
Frequently asked questions about Demand Letters for Unpaid Debts
5 questions answered
No — and this is the most common misunderstanding we see. Sending a demand letter does not by itself interrupt the limitation period; what interrupts it is filing suit, or the debtor acknowledging the debt. That is why we check the limitation period first, and if it is close to expiring we advise preparing the claim in parallel.
You can. But Thailand's debt-collection law sets clear limits — when contact may be made, a prohibition on revealing the debt to third parties, and a ban on threats or public shaming. A pattern we see often is a creditor who collected personally and ended up on the receiving end of a complaint. A letter from a lawyer carries weight while staying inside those limits.
Often, yes. Transfer slips, chat messages acknowledging the debt, purchase orders, and delivery notes can all support a claim — though some categories of debt require written evidence before they can be sued on. We look at what you actually hold and tell you plainly whether it is enough.
If the deadline passes without payment, the options are to sue, to mediate, or to put the debtor on a written repayment plan that acknowledges the debt — and which one fits depends on the amount and on what the debtor actually owns. We assess the realistic prospect of recovery before you decide to file, because winning a judgment and collecting on it are two different things.
A demand letter is for when what you want is money — payment by a set date. A legal notice is for when you need the other side to stop, leave, terminate, or put something right: ending a contract, vacating a property, or ceasing an infringement. If your matter involves both, we can combine them in a single letter.
Other business services
Company & Corporate Registration
Company formation, changes to directors/capital/address/objectives, dissolution, and full DBD paperwork — handled end-to-end by a team that sees it through.
Accounting & Monthly Tax
Monthly bookkeeping, tax filing (withholding & VAT), annual financial statements, payroll, and social security — all in one place, right after we register your company.
Business License Applications
Industry-specific licenses — restaurants, food sale/storage, hotels, import-export, FDA, and e-commerce — with documents prepared and agencies coordinated for you.
Contract Drafting & Document Review
Draft and review business contracts of every kind — employment, NDAs, services, sale, lease — plus website T&Cs/privacy policies and demand letters, to prevent disputes before they start.
Notarial Services & Certified Translation
Notarial Services Attorney certification of signatures and documents, certified translation, and embassy/consular liaison — for use at home and abroad.
Employer Labour-Law Compliance & HR Advisory
Employment contracts and work rules that hold up, a documented discipline-and-termination process, and a standing labour adviser your HR team can call before they act — not after.
Work Permit & Visa Processing Service
Work permits and business visas filed and renewed end to end — company eligibility checked first, employer paperwork prepared, 90-day reporting handled, and clean cancellation when staff leave.
Retained Corporate Legal Counsel
A named lawyer on monthly retainer — reviewing the contracts you use, answering day-to-day questions, issuing demand letters, and settling disputes before they reach court.
Customs & Cross-Border Trade Compliance
Tariff classification and customs valuation, responding to post-clearance audits, challenging retrospective duty assessments, and claiming the privileges you are entitled to.
PDPA Compliance & Data Protection
Find out where the organisation is actually exposed, then put the documents and procedures in place — policies, consents, processing records, processor contracts, data-subject requests, and breach response.
Legal Notices & Cease-and-Desist Letters
Lawyer-issued notices that terminate a contract, require a property to be vacated, demand an infringement stop, or set a deadline to cure a breach — plus replies to notices you have received.