Est. 2019 · Bangkok · Khon Kaen · Agents in 77 provincesTHEN
§ Notarial Services Attorney

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Notarial Services Attorney · ขึ้นทะเบียนสภาทนายความในพระบรมราชูปถัมภ์

NYCVisa · Notarial Services Attorney

Consent Letter Certification in Thailand

Child travel consent needs parental-authority, companion and destination or airline checks. Do not assume both parents must sign in every family situation.

Illustration of preparing child travel consent documents
Service illustration, not evidence of an actual client engagement.

Certification scope and key checks

Who may consent depends on family status and any court order. A birth certificate supports the relationship but does not resolve every parental-authority question. Review relevant custody orders, death records or other evidence where applicable rather than demanding them from every family.

Match the form to travel dates, destinations and the accompanying adult. Travel consent and passport consent may require different forms. Certification does not guarantee border entry; check the carrier and destination authority first.

Documents to prepare

  • Consent form, itinerary and travel dates
  • Child and consenting adult identification
  • Birth record and relevant parental-authority evidence

Procedure for this document

  1. Check airline and destination requirements
  2. Identify the consenting authority and evidence
  3. Execute as required and assemble the travel set

Overseas use: confirm the recipient’s route

Notarization is not required for every public record, and some uses need no onward legalisation. Confirm whether the recipient needs an original, copy, translation or specific certification before arranging MFA and embassy steps where applicable.

Thailand deposited its accession on 30 June 2026. The Apostille Convention is scheduled to enter into force for Thailand on 28 February 2027. Do not assume Thai Apostilles are available before then. Even after entry into force, document scope and treaty relations with the destination must be checked.

Questions before booking

Must both parents always sign?
Do not assume so. Check parental authority, the accompanying adult and recipient rules, especially where a court order or sole-parent situation applies.
Are MFA and embassy legalisation always needed?
No. Ask the recipient to confirm the certification, language and onward steps. Notarization, translation and legalisation are distinct; do not perform every step automatically.
How are fees and timing assessed?
After reviewing the form, copies, signers, language and onward steps, we provide a quote and indicative schedule before work. Authority queues and outcomes are not guaranteed.
What should I send before booking?
Send the record type, destination country, receiving authority and its checklist through a direct contact channel. Redact personal information unnecessary for the initial enquiry.

📚 Official sources and current requirements

Content reviewed 8 October 2026. General information, not case-specific legal advice. Confirm current requirements with the recipient before filing; document acceptance and application outcomes are not guaranteed.

Send the recipient’s checklist before booking

Initial enquiry for scoping and a quote is free; case-specific legal advice is not included.