Blog · 2026-02-24

Relocating with children: paperwork, schools and adaptation

Family relocations rarely stall over money. They stall over a birth certificate without an apostille and a school that filled its places nine months ago. Here is what to prepare, how to choose between IB and a local school, and the age at which a child stops qualifying as a dependant.

Children's paperwork is the real bottleneck

Nine times out of ten, a family application slows down not over funds or due diligence, but over the children's documents. An adult can produce a missing certificate in a week. A child needs an apostilled birth certificate, which means the civil registry back home, a power of attorney for someone on the ground, and three to four weeks of waiting - all while you are already on another continent.

The baseline set for every minor looks like this:

• Birth certificate with an apostille. This is the document that proves parentage. If the destination country is outside the Hague Convention, you need consular legalisation instead - slower and more expensive.
• A sworn or notarised translation into the local language. Requirements vary: some countries accept a translation certified at their consulate abroad, others insist on a locally registered sworn translator.
• A passport valid for at least a year beyond the filing date. As of 2026 an increasing number of countries only process residence applications on biometric passports, so that five-year child passport with a toddler photo should be renewed before you go.
• Notarised consent from the second parent to the child living abroad - apostilled and translated.
• Medical records, vaccination certificate and a paediatrician's letter.
• School transcripts for the past two or three years, ideally already translated and certified.

A practical rule: order two apostilled originals of everything. One goes to the immigration authority and never comes back; the second is for the school, which will ask for it precisely while the first set sits in an official's folder.

Parental consent: where families get caught

Exit rules and entry rules are different things. Many countries let a child leave with one parent, but immigration authorities in Spain, Portugal, Turkey and across Latin America almost always want a document in which the second parent confirms they know about the move and do not object to the child residing abroad.

Separated parents are the harder case. If the second parent is unreachable, deceased or has lost parental rights, you will need a court order on the child's residence, a death certificate or an equivalent ruling - and none of this is realistically obtainable from another continent. Close this question before you fly, ideally with a family lawyer. We usually bring in specialist counsel while the programme is still being chosen, not after filing.

International or local school

The dividing question is simple: is this country your last stop or your first of three? Families settling permanently are almost always better served by a local school - language, friendships, a local diploma, no expat bubble. Families expecting to move again in three years need a portable curriculum, or every relocation restarts the child's education.

On cost, rough 2025/26 benchmarks: Lisbon runs roughly €8,500-25,000 a year, with premium IB Diploma years reaching €28,000; Madrid sits at €11,000-17,000 in the early years and €21,000-30,000 for Diploma or A-Level; Dubai ranges from AED 35,000-75,000 in primary to as much as AED 105,000 in sixth form. Fees are revised annually and vary sharply by campus, so treat these as orders of magnitude rather than quotes. Add registration fees, deposits, transport, uniform and books - typically another 10-20% on top of tuition. If you are still choosing a destination, our city guides cover schooling alongside cost of living.

Two things nobody warns you about. First, admissions at sought-after schools run nine to twelve months ahead - by February or March you are already late for a September start. Second, in many countries a state school place is tied to your residential address and a local registration number, which means the school effectively depends on where you signed the lease. The correct sequence is counterintuitive: school first, apartment second.

Language and adaptation: the honest timeline

It helps to separate conversational fluency from academic language. Conversational ability - playground talk, ordering lunch, asking for help - typically arrives within one to three years of genuine immersion. Academic language, the kind needed to write an essay or follow a history textbook, takes five to seven years according to the classic work of Jim Cummins and the longitudinal research of Collier and Thomas - and longer for children without strong literacy in their first language.

The practical implication: a child chatting comfortably with classmates after six months is not necessarily ready to study in that language. A dip in grades during the second year is normal, not a red flag. What actually helps:

• An intensive language course two or three months before term starts.
• An in-school support programme (EAL/ELL) - ask at the tour how many hours per week and how large the groups are.
• Maintaining the first language through reading, writing and tutoring. This is not sentimentality: academic skills transfer between languages.
• One stable activity where language is secondary - sport, music, chess. Children socialise faster there than in the classroom.

Teenagers between 13 and 16 have the hardest time: their social circle is already formed and the linguistic bar is far higher. For them, a year in an international school before switching to a local one usually beats being dropped straight into the national system.

Including children in residency and citizenship applications

Age thresholds are the most underestimated variable in family planning. Every programme draws its own line, and the lines can differ by a decade.

The underlying logic is consistent: the closer a child is to adulthood, the more their status depends on documented dependency - enrolment letters, absence of independent income, shared residence. We map the options with different thresholds across our citizenship and residency hubs, with European investment routes gathered under golden visas.

Teenagers: the eighteenth-birthday trap

The classic scenario: a son is 17 years and 8 months old, the family files, processing takes a year, he turns 18 - and drops off the application. Some programmes freeze age at the filing date; others assess it at approval. That difference costs a separate application, a separate investment contribution and several years.

If your teenager is 16 or older:

• Establish before filing which date fixes the age - submission, approval or oath.
• Do not let document collection drift. Every lost month costs more here than for an adult.
• Favour programmes with high thresholds. Caribbean options such as Grenada and Antigua and Barbuda have long been the most family-friendly for exactly this reason.
• If the child is about to turn 18 and heading to university abroad anyway, a student route with later naturalisation is sometimes cheaper and cleaner than forcing them onto the parents' file.

One more point for sons: in several countries citizenship carries military service obligations. That is not a reason to rule a programme out, but it belongs in the calculation now rather than seven years from now.

Beyond tuition

A child's residency follows the parents, but the family's tax position changes wholesale - a change of tax residence affects child benefits, education deductions and the treatment of family structures. Before locking in a country, look at the full picture in our tax section. Saving €20,000 on school fees is easily erased by a single line on a return.

It is also worth weighing the slower routes. Argentina grants citizenship to children born on its soil, with parental naturalisation available after two years of legal residence; Paraguay offers territorial taxation and a straightforward family filing. For a household with two or three school-age children, the difference between those paths and a Caribbean passport is measured not only in money but in years spent in one specific place - and that, rather than a visa-free count, is what should decide it.

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