The short answer
If the other parent is a guardian of your child, you need their agreement before you take your child out of the country. That applies to a week in Spain exactly as it applies to a permanent move. Citizens Information is blunt about it: the same rules apply to temporary removal, for example a holiday, as permanent removal. Taking a child abroad without the consent you need can be treated as child abduction, even when your child lives with you most of the time, and even when you are flying home on the Sunday night.
That is a hard line to read if you have already paid a deposit. It is also why this is worth settling three weeks before the mid-term break rather than three days before it.
Who has to agree depends on where you live. In Ireland it turns on guardianship, and Citizens Information sets out three situations where consent is needed: where the other parent is a guardian of the child, where the removal affects custody or access rights, or where a court order requires it. Note the middle one. Even where the other parent is not a guardian, an access order that gives them time with your child during the week you want to travel is enough to put you in the wrong if you go anyway. If you are not certain whether the other parent is a guardian, establish that first, because it decides everything that follows.
In England and Wales the test is parental responsibility rather than guardianship, and the rule is that everyone who holds it has to agree. There is one narrow exception. If a child arrangements order names you as the person the child lives with, you can take your child abroad for up to 28 days without asking, unless another court order stops you.
What consent should actually look like
A nod at a handover is not much use to you at a border desk, and it is no use at all six months later when the two of you remember the conversation differently. Get it in writing, and get it specific.
GOV.UK says a letter from the person with parental responsibility is usually enough, and that it should carry their contact details along with the details of the trip. Build on that. A consent note that works names your child, gives the destination and the address you are staying at, the date you leave and the date you come back, the flight numbers if you have them, who else is travelling, and a phone number the other parent can reach you on while you are away. Then it is signed and dated.
Bring more than the letter. GOV.UK advises carrying evidence of your relationship to your child, such as a birth or adoption certificate, and a marriage or divorce certificate if your surname is different to your child's. Border officials ask about this more often than parents expect, and a thin folder makes for a long conversation in front of a tired six year old.
There is a second consent you may have forgotten about. If the passport has run out, or your child has never had one, the Passport Service must get consent from all of the child's guardians before it can issue a child's passport. If you apply online you print a Child Passport Identity and Consent Form for the other guardian to sign, and if you apply by post both guardians sign the parental consent section of the form. So the question you are dreading can arrive twice in one autumn, once for the passport and once for the trip. Check the expiry date tonight rather than in mid-term week.
If they say no, or you cannot reach them
Start by looking hard at the ask itself. A vague request is easy to refuse and easy to ignore. Dates, destination, who is going, when you are back and how contact will work while you are away, all in one message, is much harder to turn down without giving a reason. If the refusal is really about losing their own time with the child, offer the swap in the same message rather than waiting to be asked for it.
If that goes nowhere, mediation is usually the next step, and it is quicker and less bruising than a courtroom. The Family Mediation Service, run by the Legal Aid Board, is free to use and is built for exactly this kind of single, bounded disagreement, the sort where you agree about most things and are stuck on one week in October.
If mediation is not an option or does not land, there is a court route in both jurisdictions. In Ireland, where a guardian refuses consent or you are not in touch with them, Citizens Information says you can apply to the District Court for a court order. In England and Wales, GOV.UK is clear that if you cannot get permission you must apply to a court, and that your application needs the departure date and planned return, contact details for anyone with parental responsibility who is staying behind, and for longer trips things like how your child will be schooled while away.
The same rules apply to temporary removal, for example a holiday, as permanent removal.
It is worth knowing the other side of this too, because the fear runs both ways. If your child is taken out of the country without your consent, or kept abroad past the agreed date, Citizens Information says to contact the Central Authority in the Department of Justice immediately. More than ninety countries are parties to the Hague Convention on the Civil Aspects of International Child Abduction, which exists to return a child to the country they normally live in as quickly as possible. It applies where the child is under sixteen, lived in the country they were taken from, and the other parent was actually exercising custody rights. The Central Authority does not charge for its services and does not give legal advice, so you will want a solicitor alongside it.
Before you book anything
Four things, in this order. Check the passport expiry date. Ask for consent in writing, with the dates and the address inside the ask. Keep the reply. Then book.
That third one is the one parents skip. Consent given in a message is only worth what you can find again. If it lives in a thread that scrolls away, you do not really have it. Keep travel consent somewhere you can put your hand on it in thirty seconds, with the date it was given attached, alongside the schedule it affects.
That is the part ParenThing is built for. One calendar both homes can see, messages that stay where you can find them, and a record of what was agreed and when, so next October starts from a document rather than from an argument about what was said. The Free plan is €0. Premium is €12.99 a month or €119 a year.
None of this makes the conversation itself easier. It does mean that when you have had it, you only have to have it once.
Get started at parenthing.ieSources
- Citizens Information explains when consent is needed to take a child out of Ireland, and confirms that the same rules apply to a holiday as to a permanent move: International child abduction.
- GOV.UK sets out the permission rule for England and Wales, the 28 day exception, what a consent letter should contain and how to apply to court: Get permission to take a child abroad.
- Citizens Information confirms that the Passport Service needs consent from all of a child's guardians, and sets out the District Court route where a guardian refuses or cannot be contacted: Your child's first Irish passport.
- The Legal Aid Board runs the Family Mediation Service and confirms that it is free to use: Family Mediation.