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Thai Notary Law

Corporate certification for cross-border transactions

Certification support for company documents, authorized signatories, and corporate seals for international use.

16,168+
ลูกค้าที่ไว้ใจ
6
ทนาย Notary
4
สาขาทั่วประเทศ
50+77
เขต กทม. / จังหวัด
60+
สัญชาติลูกค้า
≤ 3 นาที
ตอบ LINE

Who needs this service?

  • Company directors
  • In-house legal teams
  • International contracting parties
  • Businesses proving corporate authority

Documents to prepare

  • Company affidavit
  • Shareholder or corporate records
  • Director ID/passport
  • Contract, board resolution, or corporate POA

How it works

  1. 1

    Authority review

  2. 2

    Gap analysis on board resolutions or POA

  3. 3

    Signing before the notary

  4. 4

    Cross-border filing package preparation

Deliverables

  • Corporate notary package
  • Further legalization guidance when needed
  • Structured filing order for foreign counterparties

Pricing: Pricing varies by document volume and signing authority complexity.

ทนาย Notary ใกล้คุณ

กดอนุญาตตำแหน่งเพื่อให้เราจัดอันดับสาขา/ตัวแทนที่ใกล้คุณที่สุด พร้อมระยะทางจริง — หรือไม่อนุญาตตำแหน่งก็ค้นหาด้วย เขต/สถานี ได้ด้านล่าง

Frequently asked questions

Can an English contract be notarized?

Yes, provided the authorized signatory appears before the notary and the supporting corporate authority documents are complete.

Is the company seal required?

It depends on the receiving party and the document structure. We review whether the corporate seal is necessary.

แหล่งอ้างอิง / Authority References

Ready to start?

Send us your document over LINE and we will quote within minutes. Same-day appointments available across Bangkok.

Why company registrations get rejected — and how to fix it

Short answer: Registrars refuse names that clash or breach naming rules, objectives that do not cover the real business, foreign shareholder powers of attorney without a complete certification chain, and incomplete office-address evidence.

Reserved name refused

Underlying cause
Too similar to an existing name or uses a restricted word
Prevent before filing
Prepare three alternatives and check restricted terms first
How to fix a rejection
File the next name in your list
Estimated time cost
Adds roughly 1–3 working days (estimate)

Objectives do not cover the actual business

Underlying cause
A generic template was filed unchanged
Prevent before filing
Draft objectives from the business plan and the licences you will need
How to fix a rejection
File an amendment to the objectives
Estimated time cost
Adds roughly 3–10 working days (estimate)

Foreign shareholder power of attorney not accepted

Underlying cause
Missing overseas notarisation and onward certification
Prevent before filing
Plan the certification chain before signing
How to fix a rejection
Re-execute and complete the chain
Estimated time cost
Adds roughly 7–20 working days (estimate)

Office evidence incomplete

Underlying cause
Missing consent letter, house registration copy or map
Prevent before filing
Assemble the premises pack before filing
How to fix a rejection
Submit the documents the registrar lists
Estimated time cost
Adds roughly 1–5 working days (estimate)

We design the shareholding, objectives and foreign-document chain around the licences you will need next — advice first, filing second.

Durations are working-day estimates excluding agency queues, and are not a guarantee of any authority's decision.

Sources: กรมพัฒนาธุรกิจการค้า (DBD) · สภาทนายความในพระบรมราชูปถัมภ์ · Last reviewed: 2026-08-10

Service steps at a glance and the documents you need first

Company documents such as certificates, board resolutions, powers of attorney and financial statements must be signed by the authorised directors shown on the company affidavit, sealed where required, then have the signature certified by a notarial services attorney before consular and embassy legalisation in the order the receiver requires.

How the work runs

  1. Verify signing authority against the affidavit — Same day
  2. Draft the documents and translation — 1–2 working days (estimate)
  3. Sign before a notarial services attorney — 1 working day (estimate)
  4. File for consular legalisation — 1–3 working days (estimate, excluding agency queues)
  5. File at the destination embassy and deliver — 2–10 working days (estimate, varies by mission)

Documents to prepare first

  • A recent company affidavit within the age window your receiver accepts
  • Shareholder list and memorandum of association where requested
  • Minutes or resolutions stating subject, date and the appointed representative
  • ID card or passport of the signing directors
  • Company seal, if the affidavit requires it alongside signatures
  • Current certificate of incorporation or good standing

If you would rather your team not spend days moving files between agencies, we can run the chain from authority check to delivery. Initial consultation is available by phone, LINE or email.

Durations are working-day estimates excluding agency queues and are not a guarantee of any decision.

An official document folder, passport and certificate on a government service counter
Documents used abroad must pass the correct certification chain before submission.

Official sources & further reading

Statements on this page follow the authorities below. Confirm current requirements with the authority before filing. Last reviewed 2026-07-29.

Related questions

Where do I start if I am unsure which certification I need?
Start with three questions: which authority will receive the document, in which country, and by what date. Those answers determine the authentication route, the translation language and the full sequence.
Why are fees not published on the site?
Scope varies widely with document count, language and the consular steps involved, so we quote against the actual work and confirm details by phone, LINE or email before starting.
Do you serve clients outside Bangkok?
Yes — we serve clients nationwide and overseas, receiving documents by post or courier and scheduling signing appointments when in-person attendance is required.
How is personal data in my documents handled?
Documents are used only for the purpose you state, retained for the period professional duties and data-protection law require, and not disclosed to third parties without consent.

Related services

Fees are not published online — ask our team by phone, LINE or email for a scope-based quote.