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How to Apostille a Child Travel Consent Letter

A consent letter authorizes a child to travel with one parent or a third party. Notarization makes it a public document; several Latin American countries require an apostille on top, especially when the child will leave the country.

Reviewed November 2026  |  Informational only — not legal advice

Child travel consent letterDocument

Child travel consent letter

Reviewed November 2026

What to include

  • Child’s full name, date of birth, passport number.
  • Names and passport numbers of the traveling adult(s) and the consenting parent(s).
  • Travel dates, destination(s), and whether the consent covers exit from the destination country as well as entry.
  • A statement that the signer holds parental authority and consents; custody situation if relevant (sole custody order attached).
  • Contact details of the consenting parent.
  • Signature before a notary. A jurat (sworn) is preferred by many authorities; an acknowledgment is acceptable to most.

Some countries publish forms: Brazil’s Federal Police authorization, Argentina’s autorización de viaje, Mexico’s SAM form (for Mexican minors), Colombia’s permiso de salida del país. Use the form where one exists.

When an apostille is required

  • Entry into most countries: a notarized letter usually suffices; airlines and border officers check it exists.
  • Exit from Brazil, Argentina, Colombia, Uruguay, Paraguay, the Dominican Republic and several others for minors who are nationals or residents: an apostilled (or consular-legalized) authorization is routinely required, and local notaries may need to transcribe it.
  • Extended stays, school enrollment, medical treatment abroad: an apostille is commonly requested.
  • Non-Hague destinations (UAE, Thailand, Egypt): authentication and embassy legalization instead.

Which state

The state where the notary is commissioned. Parents abroad often sign before a remote online notary in Florida, Texas or Virginia and apostille there, provided the destination accepts electronically notarized documents.

Translation

Translate after the apostille into the destination language; Spanish-speaking countries’ border officers generally require a Spanish version. Bilingual letters avoid a separate sworn translation in many cases.

Common reasons for rejection

  • Missing passport numbers or travel dates
  • Letter signed before seeing the notary
  • Notary of a different state than the apostilling office
  • No apostille where the exit authority requires one
  • Letter older than the destination's window (often 90 days)

Frequently asked questions

Does a travel consent letter need an apostille for Mexico?

For entry with a U.S. child, Mexico does not require an apostille; the notarized letter is sufficient. For Mexican-national minors departing Mexico, Mexican rules (SAM) apply.

Both parents are traveling. Do we need a letter?

No. Consent letters are for travel with one parent or a third party.

Can grandparents sign?

Only the parents or legal guardians can consent. Grandparents are usually the authorized accompanying adults.

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