Canada has no law that makes a parent carry a consent letter for a child travelling with only one parent. Chile has rules that do: a child travelling with one parent, a guardian or alone must carry a notarized, apostilled and translated authorization from the other parent or a court, plus an apostilled long-form birth certificate. Every family trip abroad falls somewhere between those two positions.
The consent letter for children travelling outside Canada has no official format. What makes it work is who signs it, how it is witnessed and whether the destination can read it. Below: when a child needs one, what goes in it, notarization, the countries that ask for more, and when the letter, a custody order or a birth certificate needs translating.
Is a consent letter required to travel with a child from Canada?
No. In the words of travel.gc.ca, "A consent letter is not legally required in Canada, but it may be requested by" immigration authorities entering or leaving a foreign country, airline agents and Canadian officials when you come back. It warns that "failure to produce a letter upon request may result in delays or a refusal to enter or exit a country."
The Canada Border Services Agency (CBSA) is just as direct. Its officers "are always watching for missing children and may ask questions about minors travelling with you." When travelling with a minor, the CBSA says you should carry identification for the child, copies of any legal custody documents, and a consent letter if you share custody and the other parent is not travelling, or if you are not the child's parent or guardian. It also asks you to arrive at the border in the same vehicle as the child.
Age is where people slip. The CBSA treats anyone under 18 as a minor, but travel.gc.ca advises a letter for "any child under the age of 19," and warns that foreign authorities may ask even when a child is 16 or older and can get an adult passport.
When does a child need a consent letter?
Whenever the child crosses an international border without every parent or guardian, including "the land border with the United States even for a day trip." Travel.gc.ca lists four situations, a child travelling:
- alone
- with only one parent or guardian, "even if they are travelling with both parents for part of the trip"
- in the care of friends or other family members
- with a group, such as a sports, school, musical or religious group
Family circumstances change the paperwork:
- Separated or divorced parents. A letter is recommended "even if a parenting order or agreement allows one parent to make travel decisions alone." Carry a copy of the order as well.
- A parent who has died. Bring a copy of the death certificate; a child travelling alone carries the surviving parent's letter and the certificate.
- A parent living abroad. That parent should sign, before any adult witness or a consular officer at a Canadian office abroad, for a fee.
- A child in temporary care. The child welfare agency's representative signs.
What should the consent letter include?
There are "no official guidelines for the content and format," but the Government of Canada publishes a template, as a fillable PDF and a printable Word file. It asks for:
- The child: full name, date of birth, place of birth, passport number, date of issue and issuing country.
- The accompanying adult: name, passport number, date of issue, issuing country and relationship to the child, or a box ticked for travel alone.
- The trip: destination countries, the person the child will stay with and their address, phone and email, and the dates of departure from and return to Canada.
- The consenting parents or guardians: names, address, phone, email, signatures and dates.
- The witness: the name, title and signature of the witness or official, with the place and date.
The CBSA adds that a consent letter "must include the custodial parents' or legal guardians'" full name, address and telephone number, so an officer can reach them. Siblings travelling together can share one letter; separate letters are recommended for children who split up during the trip.
Does a consent letter need to be notarized in Canada?
No law requires it, but both federal sources push you toward it. Travel.gc.ca says any adult may witness the signing, but "it is strongly recommended that a notary public witness sign it." The CBSA says: "To avoid delays, have your consent letter notarized to support its authenticity." The template itself allows an adult witness, or "a notary public or other official authorized to administer oaths (recommended)."
Notarization also matters for a second reason. If a destination wants the letter apostilled, there must be a public official's signature to authenticate, and on a consent letter that is the notary's. Canada has issued apostilles since the Hague Apostille Convention took effect here on January 11, 2024; our guide to apostilles in Canada explains who issues them.
Which countries ask for more than Canada?
Many. Travel.gc.ca warns that a consent letter "may not always be considered sufficient" abroad, and its country pages spell out the extra rules. Examples as published there in October 2026:
| Country | Applies to | What it asks for |
|---|---|---|
| United States | Canadian children under 19 travelling with a school or organized group | Written consent from their own parent or guardian |
| Mexico | Children under 18 who are Mexican citizens or residents, leaving Mexico | The Mexican Minor Travel Consent Form, or a notarized consent if travelling without a legal guardian |
| Brazil | Brazilian children under 18, including dual citizens, leaving without both parents | A mandatory travel authorization |
| Colombia | Canadian-Colombian children under 18 travelling alone or with one parent | Authorization from both parents "written in Spanish and notarized"; a Colombian birth certificate or a long-form Canadian one with "its official Spanish translation" |
| Chile | Children travelling with one parent, a guardian or alone | A notarized, apostilled and translated authorization; the child's apostilled long-form birth certificate |
| Ecuador | Ecuadorian-Canadian children under 18 travelling alone | A letter from both parents, translated into Spanish and notarized at an Ecuadorian embassy or consulate in Canada |
| Honduras | Minors (the age of majority is 21) travelling alone or with one parent | A notarized authorization in Spanish, authenticated by Honduran authorities before arrival |
| Guatemala | Children travelling with one parent or a third party | A notarized consent letter from the absent parent or parents |
| Philippines | Children under 15 travelling alone | A Waiver for Exclusion Ground |
Argentina, Paraguay and Peru apply exit rules to children born or living there, and South Africa has extra requirements for unaccompanied minors and South African children. Rules change, so check the destination's page on travel.gc.ca and its consulate before you book.
When does the letter or a custody order need translating?
For Canada, almost never: the letter is in English or French already. The exception runs the other way. A child coming to Canada with a letter signed abroad should have it "in English or French if possible," says Immigration, Refugees and Citizenship Canada (IRCC), and any such letter filed with an IRCC application must come with a translation under IRCC's standard rule, by a certified translator or, if the translator is not certified, with the translator's affidavit.
Abroad, the language belongs to the destination. Describing how parental authorizations are granted, Chile's government says they must be presented "en idioma español o debidamente traducido," in Spanish or duly translated. There are two ways to get there:
- A bilingual letter. Have the text translated first, then sign the English and Spanish (or Portuguese) versions side by side before the notary. Useful where the authorization itself must be in Spanish, as in Honduras and Colombia. If it also needs a Canadian apostille, Global Affairs Canada and the provinces require the Spanish or Portuguese text to carry a translation certified by a provincial association member or attested by a notary.
- An English letter with a certified translation. Sign and notarize in English, add the apostille if required, then have everything translated, including the notary's certificate and the apostille.
Custody orders and birth certificates follow the same logic. An English parenting order may mean nothing to an officer in Bogotá, and Colombia and Chile both want a long-form birth certificate showing the parents' names; see birth certificate translation and family court documents.
Common mistakes with consent letters
- A scan or photocopy instead of the signed original, which officials may refuse.
- No phone number for the absent parent, so the officer cannot confirm consent.
- Assuming sole custody means no letter. Travel.gc.ca still recommends a letter where possible, plus a copy of the order.
- Forgetting dual citizenship. A child who is also Mexican, Brazilian or Colombian leaves those countries under their rules, not Canada's.
- Translating too late. Where the authorization must be in Spanish, a translation stapled to an English letter after the notary has signed may not count.
- Dates and destinations that do not match the tickets, including stopover countries.
Checklist: travel documents for a child without both parents
Questions people ask
Is a consent letter mandatory for a child travelling with one parent from Canada?
No. Canadian law does not require one, but the Government of Canada recommends it for any child under 19 travelling without both parents, and airlines, foreign authorities and Canadian border officers may ask to see it.
Does a child consent letter have to be notarized?
Not legally, but travel.gc.ca strongly recommends a notary public as the witness, and the CBSA says notarizing the letter helps avoid delays by supporting its authenticity. If the destination wants an apostille, the notary's signature is what gets authenticated, so notarization becomes essential.
Do I need a consent letter to drive my child to the United States?
It is recommended, even for a day trip, if the child is not travelling with both parents. Travel.gc.ca says the letter covers any international border, including the US land border, and Canadian children under 19 travelling with a school or organized group need written consent from a parent or guardian.
Do I need a consent letter if I have sole custody?
Travel.gc.ca still recommends one from the other parent where possible and safe, together with a copy of the court order or parenting arrangement. If the other parent has died, carry a copy of the death certificate instead.
Does the consent letter need to be translated?
Not for Canada. Some destinations require it in their language or with a translation, including Chile, Honduras and Ecuador, and some control who translates or authenticates, so ask the consulate first. A foreign-language letter filed with IRCC needs a translation that meets IRCC's rule.
Can the other parent sign the consent letter from abroad?
Yes. Any adult can witness the signature, including a consular officer at a Canadian government office abroad, for a fee. Digital signatures may be accepted, but travel.gc.ca recommends carrying the original signed letter.
Does a consent letter need an apostille?
Not for Canada. Some countries, such as Chile, ask for an apostilled authorization. Since January 11, 2024, Canadian documents can be apostilled under the Hague Convention, and a consent letter has to be notarized first so there is an official signature to authenticate.
How much does it cost to translate a consent letter or custody order?
Official Translations charges CA$39.95 per page, a page being up to 300 words, and a one-page letter is usually delivered as a signed PDF within 24 hours. Printed copies can be couriered on request, and an apostille can be added to the certified translation where the destination asks for one.
