An Australian Child Travel Consent Letter is a formal written document in which one or both parents or legal guardians authorise a child under 18 years of age to travel — either internationally or domestically — without one or both parents being present. The letter provides evidence that the travelling child has the consent of all persons with parental responsibility, which is required under Australian law and expected by airlines, border control agencies, and foreign immigration authorities.

The legal framework governing child travel in Australia is found primarily in the Family Law Act 1975 (Cth) and the Australian Passports Act 2005 (Cth). Under Part VII of the Family Law Act, both parents who have parental responsibility for a child have the right and responsibility to make major long-term decisions about the child, including decisions about international travel. Section 65Y makes it a federal criminal offence to take a child from Australia, or to arrange for a child to be taken from Australia, without the consent of all persons with parental responsibility or without a court order permitting the travel. The maximum penalty is three years imprisonment.

The Australian Passports Act 2005 (Cth) requires the consent of all persons with parental responsibility before a child's Australian passport will be issued. If one parent has sole parental responsibility under a parenting order, that parent may apply alone, but must provide a copy of the court order. Where no parenting order exists, the Passports Office requires written consent from both parents.

At the international level, Australia is a signatory to the Hague Convention on the Civil Aspects of International Child Abduction (1980), implemented domestically by the Family Law (Child Abduction Convention) Regulations 1986 (Cth). The Convention provides a mechanism for the prompt return of children wrongfully removed from or retained outside their country of habitual residence and applies between Australia and approximately 100 other member countries. A properly executed Child Travel Consent Letter demonstrates compliance with Australian law and reduces the risk of the travel being characterised as abduction.

A Child Travel Consent Letter is required — or strongly recommended — in a wide range of travel situations involving Australian children under 18 years of age. The document is most commonly needed when a child is travelling internationally with only one parent, when the child is travelling with a person other than a parent (such as a grandparent, aunt, uncle, family friend, or school group leader), or when the child is travelling without any adult companion.

The most frequent scenario is where separated or divorced parents have agreed that the child will travel with one parent during school holidays. In this case, the parent remaining in Australia should provide a signed consent letter to the travelling parent, confirming that the trip has been authorised and providing their contact details for verification by border control. Many airlines also require evidence of consent when a child is travelling with only one parent, particularly on routes to or from countries with high rates of international child abduction.

A Child Travel Consent Letter is also essential when a child is travelling internationally with a grandparent, relative, or family friend during the school holidays — for example, a trip to visit family in another country. In some destination countries, including Brazil, Mexico, Chile, South Africa, and many European Union countries, border authorities have specific requirements for minors and may require a notarised consent letter translated into the local language.

For international school trips or organised sports or cultural tours, the school or organisation usually requires formal written consent from both parents before the student can travel. The consent letter supplements the school's permission forms by providing a document that can be presented to foreign border authorities.

A Child Travel Consent Letter is also important when applying for a child's Australian passport. The Australian Passports Office requires either written consent from all persons with parental responsibility or a court order authorising the passport to be issued. If the parents are separated and one parent is uncontactable or refuses to consent, the other parent may need to apply to the court for an order dispensing with consent, which is a more complex process.

Even for domestic travel within Australia — for example, a child flying alone between cities, or travelling with a grandparent interstate — a consent letter can be useful evidence if questions arise about the child's travel arrangements.

A comprehensive Australian Child Travel Consent Letter must include several key elements to be accepted by airlines, Australian Border Force, and foreign immigration authorities.

The child's details must be stated precisely, including their full legal name (exactly as it appears on the passport), date of birth, nationality, Australian passport number, and passport expiry date. Any discrepancy between the name in the consent letter and the name in the passport may cause problems at the border.

The details of all consenting parents and guardians must be included — full legal names, relationships to the child, residential addresses, and contact phone numbers including Australian country code for international calls. The passport numbers of the consenting parents should also be included for verification. Where both parents have parental responsibility, both must sign the letter.

If the child is travelling with an accompanying adult who is not both parents, the adult's full legal name, relationship to the child, and passport number must be stated. Border authorities want to be able to identify the responsible adult and verify their identity.

The travel itinerary must be complete and accurate, including departure and return dates, departure airport, all destination countries and cities, flight details (airline, flight number, scheduled times), and full accommodation addresses and telephone numbers for all stays. An incomplete or vague itinerary may cause the letter to be questioned.

Emergency contact details for the parents remaining in Australia must be provided, including phone numbers reachable from overseas. The child's travel insurance details, including the policy number and emergency contact number, should be included. Any significant medical information — allergies, conditions, regular medications — should be disclosed to enable appropriate emergency treatment if needed.

A medical treatment authorisation clause, empowering the accompanying adult to consent to emergency medical treatment if the parents cannot be reached, is strongly recommended for all international travel. Details of any existing parenting orders that are relevant to the travel permission must be included. The letter should be signed and dated by both parents, with signatures witnessed by a Justice of the Peace, solicitor, or notary public.