Cross-border corporate advisory
636 topics grouped by document type and receiving authority (page 3/8) — requirements change, so confirm with the receiving authority or ask our staff by phone, LINE or email.
636 topics grouped by document type and receiving authority (page 3/8) — requirements change, so confirm with the receiving authority or ask our staff by phone, LINE or email.
Preparation and draft review can run online, but many authorities still require the physical original at the certification stage, so confirm the accepted format in writing first.
If you are outside Bangkok you can courier the original a corporate power of attorney, enclosing a passport copy and a contact number in the same envelope.
Rush handling can only compress the parts we control, such as drafting and courier legwork; the authority's own queue is outside anyone's control.
The most frequent causes are a name spelling that differs from the passport, an original older than the receiving body allows, and a translation that omits seals or the final page.
Once certified, the a corporate power of attorney is accepted by the receiving body it was prepared for; if the destination changes, re-check the certification format required.
From overseas you can appoint a representative in Thailand; the power of attorney must first be certified in the form the receiving authority requires.
Prepare at least one spare set: receiving bodies usually retain the certified original, and producing more later means repeating the certification steps.
A representative needs a power of attorney plus ID copies of both parties, and the Department of Business Development will check that names match the source document.
The standard sequence is: verify the original, prepare the translation or certification in the required format, certify with the Department of Business Development, then re-check before filing.
The baseline set is the original a certificate of good standing (or an officially certified copy), a passport or ID copy of the holder, and a power of attorney if someone else acts for you.
Turnaround depends on how complete the original is and on the authority's queue at the time, so treat any figure as an approximate range and avoid booking travel before the papers are in hand.
The final certification sits with the Department of Business Development; document preparation and translation can be arranged in advance from Bangkok or upcountry.
Preparation and draft review can run online, but many authorities still require the physical original at the certification stage, so confirm the accepted format in writing first.
If you are outside Bangkok you can courier the original a certificate of good standing, enclosing a passport copy and a contact number in the same envelope.
Rush handling can only compress the parts we control, such as drafting and courier legwork; the authority's own queue is outside anyone's control.
The most frequent causes are a name spelling that differs from the passport, an original older than the receiving body allows, and a translation that omits seals or the final page.
Once certified, the a certificate of good standing is accepted by the receiving body it was prepared for; if the destination changes, re-check the certification format required.
From overseas you can appoint a representative in Thailand; the power of attorney must first be certified in the form the receiving authority requires.
Prepare at least one spare set: receiving bodies usually retain the certified original, and producing more later means repeating the certification steps.
A representative needs a power of attorney plus ID copies of both parties, and the Department of Business Development will check that names match the source document.
The standard sequence is: verify the original, prepare the translation or certification in the required format, certify with the Department of Business Development, then re-check before filing.
The baseline set is the original a commercial invoice for export (or an officially certified copy), a passport or ID copy of the holder, and a power of attorney if someone else acts for you.
Turnaround depends on how complete the original is and on the authority's queue at the time, so treat any figure as an approximate range and avoid booking travel before the papers are in hand.
The final certification sits with the Department of Business Development; document preparation and translation can be arranged in advance from Bangkok or upcountry.
Preparation and draft review can run online, but many authorities still require the physical original at the certification stage, so confirm the accepted format in writing first.
If you are outside Bangkok you can courier the original a commercial invoice for export, enclosing a passport copy and a contact number in the same envelope.
Rush handling can only compress the parts we control, such as drafting and courier legwork; the authority's own queue is outside anyone's control.
The most frequent causes are a name spelling that differs from the passport, an original older than the receiving body allows, and a translation that omits seals or the final page.
Once certified, the a commercial invoice for export is accepted by the receiving body it was prepared for; if the destination changes, re-check the certification format required.
From overseas you can appoint a representative in Thailand; the power of attorney must first be certified in the form the receiving authority requires.
Prepare at least one spare set: receiving bodies usually retain the certified original, and producing more later means repeating the certification steps.
A representative needs a power of attorney plus ID copies of both parties, and the Department of Business Development will check that names match the source document.
The standard sequence is: verify the original, prepare the translation or certification in the required format, certify with the Department of Business Development, then re-check before filing.
The baseline set is the original a certificate of origin (or an officially certified copy), a passport or ID copy of the holder, and a power of attorney if someone else acts for you.
Turnaround depends on how complete the original is and on the authority's queue at the time, so treat any figure as an approximate range and avoid booking travel before the papers are in hand.
The final certification sits with the Department of Business Development; document preparation and translation can be arranged in advance from Bangkok or upcountry.
Preparation and draft review can run online, but many authorities still require the physical original at the certification stage, so confirm the accepted format in writing first.
If you are outside Bangkok you can courier the original a certificate of origin, enclosing a passport copy and a contact number in the same envelope.
Rush handling can only compress the parts we control, such as drafting and courier legwork; the authority's own queue is outside anyone's control.
The most frequent causes are a name spelling that differs from the passport, an original older than the receiving body allows, and a translation that omits seals or the final page.
Once certified, the a certificate of origin is accepted by the receiving body it was prepared for; if the destination changes, re-check the certification format required.
From overseas you can appoint a representative in Thailand; the power of attorney must first be certified in the form the receiving authority requires.
Prepare at least one spare set: receiving bodies usually retain the certified original, and producing more later means repeating the certification steps.
A representative needs a power of attorney plus ID copies of both parties, and the Department of Business Development will check that names match the source document.
The standard sequence is: verify the original, prepare the translation or certification in the required format, certify with the Department of Business Development, then re-check before filing.
The baseline set is the original a withholding tax certificate (or an officially certified copy), a passport or ID copy of the holder, and a power of attorney if someone else acts for you.
Turnaround depends on how complete the original is and on the authority's queue at the time, so treat any figure as an approximate range and avoid booking travel before the papers are in hand.
The final certification sits with the Department of Business Development; document preparation and translation can be arranged in advance from Bangkok or upcountry.
Preparation and draft review can run online, but many authorities still require the physical original at the certification stage, so confirm the accepted format in writing first.
If you are outside Bangkok you can courier the original a withholding tax certificate, enclosing a passport copy and a contact number in the same envelope.
Rush handling can only compress the parts we control, such as drafting and courier legwork; the authority's own queue is outside anyone's control.
The most frequent causes are a name spelling that differs from the passport, an original older than the receiving body allows, and a translation that omits seals or the final page.
Once certified, the a withholding tax certificate is accepted by the receiving body it was prepared for; if the destination changes, re-check the certification format required.
From overseas you can appoint a representative in Thailand; the power of attorney must first be certified in the form the receiving authority requires.
Prepare at least one spare set: receiving bodies usually retain the certified original, and producing more later means repeating the certification steps.
A representative needs a power of attorney plus ID copies of both parties, and the Department of Business Development will check that names match the source document.
Immigration Division 1 (Chaengwattana) sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
provincial immigration offices sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
the Department of Employment sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
the district office sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
the Department of Provincial Administration sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
the DBD sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
the Land Department sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
Thai courts sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
Thai banks sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
Thai educational institutions sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
the Board of Investment sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
the Revenue Department sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
the Social Security Office sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
hospitals and clinics sets its own certification format and translation language; request the current requirement in writing before preparing the a company affidavit.
Immigration Division 1 (Chaengwattana) sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
provincial immigration offices sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
the Department of Employment sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
the district office sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
the Department of Provincial Administration sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
the DBD sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
the Land Department sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
Thai courts sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
Thai banks sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
Thai educational institutions sets its own certification format and translation language; request the current requirement in writing before preparing the a memorandum of association.
Answers for HR, legal and procurement teams preparing document packs for overseas assignments, branch registration, cross-border contracts and international tenders, covering certification sequencing, copy counts and deadline control. (25+ search topics covered)
Need your documents reviewed or your case assessed? Ask our team by phone, LINE, or email. We reply during business hours (Mon–Fri 9:00–18:00, Sat 9:00–15:00, ICT).

Incorporating, opening a branch or closing a cross-border transaction requires a fully legalized corporate bundle, sequenced to match the deadlines of the receiving bank and registry.
Prefer not to handle the queues yourself, or worried about a rejection? Send us photos of your documents for a free pre-check. We handle the full chain — obtaining certified copies, translation, certification and submission — and keep you updated at each step. Reach us on LINE, phone or email during business hours.
The structure chosen on day one determines work permits, shareholding limits, and reporting duties for the life of the business.
| Route | When to use | Certifying authority | Approx. duration | Rejection risk |
|---|---|---|---|---|
| Thai limited company with majority Thai shareholding | General business activities with no special privileges needed | Department of Business Development and the Revenue Department | Registration is fast; banking and follow-on licences vary | A shareholding structure that does not reflect reality carries serious legal exposure |
| BOI investment promotion | The activity is on the promoted list and majority foreign ownership is needed | Board of Investment (BOI) | Variable — weeks to months depending on the activity | Post-approval conditions must be maintained; missed reporting can cost the privileges |
| Foreign Business Licence | The activity sits on a restricted list and BOI does not apply | Department of Business Development, Ministry of Commerce | Highly variable — the longest of the three routes | Unclear source-of-funds evidence and business plans are the main cause of delay |
Timelines above are practical estimates from live casework and can change with each authority's policy; confirm with the receiving authority before booking travel. If you would rather not test routes by trial and error, our advisers can assess which route fits your case.
Our team has worked on cross-border documents, certified translation and government liaison for over 15 years. Most rejections we see are not caused by missing paperwork but by choosing the wrong route on day one, so we always start with a case assessment.
We look at your destination, purpose and deadline, then tell you which certification route applies — and which steps you can skip.
Name spelling, consistency across documents, document age and translation format are checked before anything reaches a counter.
We sequence the steps around your appointment or travel date and flag bottlenecks in advance.
We read the refusal reasons, identify the underlying cause, and plan a resubmission that answers what the authority asked for.
Rather not learn by trial and error? Send your case details and document photos for a review — reach us on LINE, phone or email during business hours.
Some activities need a licence from a specialist regulator before operating. Verify at the planning stage.
Tax invoices, receipts and contracts should be filed systematically per accounting period to support any later audit.
Cross-border contracts should state which language version prevails and how disputes are resolved.
Mixed accounts complicate financial statements and tax explanations, and cause problems when bank evidence supports a visa or work permit.
Certificates submitted should be freshly issued and consistent with the current register, or the receiving authority will refuse them.
Changes of director, address or capital must be filed within the statutory period; omissions create mismatches that block other applications.
Assets in different countries may fall under different succession rules; ensure multiple wills do not contradict each other.
A translation conveys wording but does not assess legal risk. Have a lawyer review the substance before signing.
Requirements differ by authority and destination country and can change. Confirm current conditions with the receiving authority, or ask our team by phone, LINE or email.
One document set often moves through several stages — translation, notarial certification, legalization and finally a visa filing. The links below follow that real sequence.
Authority requirements change. Verify with the receiving authority before filing, or ask our team by phone, LINE or email.