Thai advisers explaining company paperwork to a business owner
Guide

Your business received a demand letter or a court summons: what to do in the first days

How to respond when a company receives a demand letter or a court summons: check the dates and the filing deadline, preserve evidence, weigh the options, and authorise counsel to act.

Zura Labs & Business Hub Co., Ltd.

Short answer

On day one, identify whether the document is a private demand letter or a court summons, and record the date received alongside every deadline stated, because the time to file a defence is strict and missing it can cost your ability to argue key points. Next, collect the contracts, invoices and all related correspondence, and never edit or delete messages after the fact. Then take legal advice on the options: negotiate, file a defence, or settle.

Reviewed 2026-09-21 by the Zura Labs corporate services team.

Key facts
Identify the document type
A demand letter from a counterparty differs from a court summons served with a copy of the complaint
Dates to record
The date on the document, the date actually received, and every deadline it states
Evidence to preserve
Contracts, purchase orders, invoices, transfer records, chats and emails, kept unaltered
Who can sign
A power of attorney must be signed by the authorised director per the affidavit, with the seal if required
The registered address matters
Service at the registered address has legal effect, so a reliable receive-and-notify routine is essential
What cannot be promised
The outcome of a judgment or a negotiation, which depends on the evidence and the court's judgment
Step by step

How this works in practice

  1. 01

    Log the date and channel of service

    Keep the envelope and proof of service, photograph them, and count deadlines from the date of service, not the day someone opened it.

  2. 02

    Freeze deletion and edits

    Tell the team to retain related emails, chats and files as they are. Deleting afterwards creates a bigger problem than the dispute itself.

  3. 03

    Build a fact timeline with references

    Order events by date with the document backing each one. A good timeline makes the case assessment far faster and sharper.

  4. 04

    Weigh the options before replying

    Compare negotiating, defending and settling across time, cash flow and the risk to the business relationship.

  5. 05

    Authorise counsel and name one point of contact

    Let counsel handle contact with the other side, and nominate a single internal coordinator so messages from different people do not contradict each other.

What goes wrong

Reasons this gets delayed or rejected

Replying emotionally over chat

Messages become evidence immediately and are often used in ways that do not help you.

Letting the filing deadline pass

Missing it forfeits key defences and raises the risk of enforcement on the claim as filed.

Nobody receiving mail at the registered address

Service at the registered address still has effect even if the director never personally saw the document.

Questions

Answers to the questions we hear most

Must I reply to every demand letter?

Not every letter should be answered at once, but every letter should be assessed. A rushed reply can concede facts that are still arguable, while silence can also push the other side to file sooner.

Do I have to attend court myself?

Counsel can act for you at many stages, but some hearings — mediation, or testimony that only a director can give — require the party to attend. Counsel will tell you in advance based on the court's schedule.

It was served at our old address. Does that count?

That turns on the facts of service and the registered address at the time. If the company actually moved but never updated the register, the risk sits with the company, so keep the register current.

How do I decide between settling and fighting?

Look at how clear the evidence is on both sides, the value at stake against the cost in time and money, the cash-flow impact, and the long-term business relationship. There is no one-size answer.

What should I preserve from day one?

The contract and its annexes, purchase orders, invoices, payment records, delivery records, and all correspondence including email and chat, kept unaltered with a second backup copy.

Official sources

This is general preparation information, not case-specific legal or accounting advice. Government fees, processing times and conditions change with official announcements. We review each guide on a schedule and show the review date on the page.