The Unexpected Costs of Moving Abroad: What Actually Catches Families Out
Every figure in this article carries its source and the date we checked it. Fees change, and the ones below are the ones published at the time of writing — 16 October 2026. Always confirm a number at the issuing authority before you budget against it.
In May 2026, the bank bunq published a survey of 7,100 people with international lives across eight countries. One finding stood out: 79% said they had faced an unforeseen cost while travelling, moving or living abroad. The six they named most often were local taxes, medical expenses, banking fees, housing costs, data roaming charges, and visa fees or fines.
It is a bank's own survey rather than peer-reviewed research, so treat the number as a signal rather than a statistic of record. But it matches what families describe, and what we have found across five moves of our own: the costs that catch people out are not exotic. They are ordinary, predictable, documented costs that simply sit outside the places people look.
There are three structural reasons a cost becomes a surprise.
It multiplies. A fee quoted once is paid four times, because every member of the family is a separate applicant.
It is not refundable. Deposits, levies and registration fees are paid before anything is certain, and they do not come back if the posting changes.
It falls outside the policy. On an employer-supported move, the headline items are covered and the adjacent ones are not. The gap between "tuition" and "the school bill" is where families find themselves paying.
What follows works through the ten places those three mechanisms show up. The last one is the largest, and it is not a fee at all.
1. Documents, and the fee you lose either way
Before any application, a family needs its paper legalised: birth certificates, marriage certificates, qualifications, police checks. This is the first cost most people meet and the first one they underestimate.
The UK's Legalisation Office charges £45 per document for a standard paper apostille, or £35 for an e-Apostille, with return courier running from £6 inside the UK to £42 for the rest of the world (gov.uk, page updated 14 October 2026). The detail that matters is in the small print: the fee is not refunded if the document cannot be legalised. A document submitted in the wrong form costs you the fee and buys you nothing.
American families pay at two levels and routinely discover the second one late. California charges $20.00 per apostille plus a $6.00 handling fee per public official's signature for in-person requests (California Secretary of State; the fee table itself carries no date, checked 16 October 2026). Separately, the US Department of State's Office of Authentications charges $20.00 per document, non-refundable, for federally issued records (page updated 1 October 2026). State-issued records go through the state; federal records go through Washington. Families budget for one and need both.
German apostilles run to roughly €25 per document, but the fee is a Rahmengebühr — a statutory range rather than a fixed price — so it varies by authority and document type, and many documents need a separately charged pre-certification first (Bayernportal, service page dated 8 April 2026).
On certified translation, we will not give you a price. Every figure available publicly comes from a translation vendor's own marketing. What we can tell you is the structural trap, which costs more than any single quote: sworn-translator status is national. A translation certified in Germany is not automatically accepted in Spain. Across one posting cycle, the same birth certificate can be translated and certified three times.
From our own moves: a child born abroad begins a document trail in the country of birth, and that is not necessarily a country you will still be living in. Our daughter was born in Zambia, which means her founding documents are Zambian ones — to be legalised, translated and explained to every system she meets afterwards. If there is any chance of a child arriving during a posting, add that paper to the budget early rather than meeting it at the next border.
Usually covered: the employee's own immigration documents. Often not: the same documents for spouses and children — marriage certificates, each child's birth certificate, school records, vaccination records.
2. Visas, and the per-person multiplication
This is the largest avoidable shock in the fee section, and the UK is the clearest illustration because the government states the rule in plain terms: "Each dependant pays the fee for the same length of time as the main applicant." There is no family rate and no sibling discount.
Taking the published Home Office rates as at 16 October 2026 — £1,618 for a Skilled Worker visa of more than three years, and an Immigration Health Surcharge of £1,035 per year for adults and £776 per year for under-18s — here is what a family of two adults and two children pays for a five-year visa:
- Visa fees: 4 × £1,618 = £6,472
- Health surcharge, adults: 2 × (£1,035 × 5) = £10,350
- Health surcharge, children: 2 × (£776 × 5) = £7,760
- Total: £24,582, payable in full at the point of application
That is our arithmetic from the published rates, not a Home Office figure. On a three-year visa the equivalent is £14,142. Either way, it is paid before anyone boards a plane.
It is worth seeing how differently this can be structured. The Dutch IND charges €423 for a first highly skilled migrant application, €254 for a partner, and €85 for a child under 18 — €847 for the same family of four (ind.nl, page last modified 10 September 2026; fees are revised every 1 January). The Netherlands discounts children. The UK does not.
France raised its fees on 1 May 2026 under Article 128 of the Loi de finances pour 2026. First issue of a standard permit went from €200 to €300; the reduced rate covering vie privée et familiale, which includes family reunification, went from €50 to €100; and the droit de timbre, payable on issue, renewal, duplicate or a change of address, doubled from €25 to €50. New from the same date: €40 to exchange a foreign driving licence, previously free (analysis by KPMG Avocats, published 19 May 2026, citing the statute).
Two timing traps apply even on a fully supported package: a renewal that falls late in a posting, and a child turning 18 mid-assignment — both the UK and the Netherlands reprice them as adults.
3. School costs that are not tuition
These are the cleanest numbers in this article, because schools publish them. They are also the sharpest fault line between what an employer pays and what a family pays, since most policies reimburse "tuition and compulsory fees" and then dispute whether a capital levy counts as compulsory.
Harrow International School Hong Kong charges a capital levy of HK$60,000 per year, per pupil, for pupils without a Capital Certificate or Debenture. It is non-refundable and reviewed annually. The escape route of buying a debenture is effectively closed: the founding individual batch sold out and no new batch is planned.
Tanglin Trust School, Singapore publishes, for 2026/27: an application fee of S$1,000, an enrolment fee of S$4,500 and a capital levy of S$4,500 — all non-refundable, all before the first day. On top of annual tuition sits a Building Fund of S$2,090 per term, or S$6,270 a year, charged to every year group. External exam fees are estimated separately by the school at S$1,000–2,500.
Frankfurt International School's 2026/27 schedule charges an infrastructure fee of €4,200 in the first year and €840 in each of the next three, plus a €340 annual registration fee and a €1,500 non-refundable tuition pre-payment for new entrants. Its refund scale on early departure is worth reading before you sign: 87.5% if you leave in August, falling to nothing from March onward.
In Dubai, the International School Creative Science (Nad Al Sheba) lists a non-refundable AED 525 application fee that is not deducted from tuition, and an AED 2,000 registration deposit that is credited against Term 1 — but forfeited if the child does not join. That is the clause that bites when a posting slips or a visa is delayed. Its school bus runs AED 5,200–6,500 one-way or AED 6,500–8,300 two-way per year, per child, payable in full with the September instalment.
Uniform is the one cost here with no good international figure. The House of Commons Library briefing on school uniform costs in England (published 18 June 2026) carries two measures that disagree with each other — a Children's Society survey from June 2023 putting average annual secondary spend at £422, and a Schoolwear Association survey from April 2024 putting a basket of compulsory items at £92.35 — and says so itself. Note the vintage of both. No international school in the set above publishes uniform prices at all; they link out to a supplier, which tells you something.
4. The cost of getting the keys
Japan is the most extreme published example, and it is instructive because every element exists elsewhere in milder form. Moving into a Japanese rental typically means shikikin (deposit) of one to three months' rent, reikin — key money of one to two months' rent, non-refundable, a gift to the landlord — an agency fee of one month plus consumption tax, and a guarantor company fee of half to one month's rent. Total move-in cost of four to six months' rent is normal (Japan Cultural Journal, 21 June 2026 — a specialist source, not official statistics).
The guarantor fee is the one to notice, because it exists specifically because you are foreign and have no Japanese guarantor. That is the real cost being described here, and it recurs everywhere: a family with twenty years of spotless credit at home arrives with no credit file at all. It shows up as larger deposits, guarantor fees, utility and mobile deposits, and no local mortgage for two or three years.
The deposit is the refundable part, and it is rarely the problem. Key money, agency commission, guarantor fees and registration charges are the non-refundable parts, and they are almost never reimbursed. Employer packages typically cover the rent itself and sometimes advance the deposit as a loan.
5. Health cover you are already paying for, and cannot use
A family arrives with a good international policy from the employer and assumes it is handled. In several countries it is not, because local cover is compulsory regardless of what else you hold.
The Netherlands publishes the penalty precisely. CAK, the official administrator, levies a fine of €529.74 if you do not take Dutch basic insurance within three months of its letter — calculated in public as three months at €176.58 (an average premium of €157.00 plus €19.58 of expected deductible). Ignore it for another three months and a second €529.74 follows, after which CAK takes out a policy on your behalf. The fine is cancelled only if cover starts within three months of the letter.
Germany works differently and is worth knowing for the opposite reason. The statutory contribution rate is 14.6%, with an average supplementary contribution of 2.9 percentage points for 2026, up 0.4 points, and long-term care at 3.6% with an extra 0.6 points for childless members aged 23 and over (vdek, page dated 19 December 2025). But non-earning spouses and children are covered at no extra cost under Familienversicherung — one of the few systems where a family of four genuinely does not multiply.
For British families the cost is on the way out rather than in. Since April 2015, non-EEA overseas visitors — expressly including former UK residents without insurance — are charged 150% of the NHS national tariff, and since October 2017 providers must recover an estimate upfront for non-urgent care (House of Commons Library briefing CBP03051; note this briefing dates from 4 May 2020, though the rules it describes remain the operative ones). The family that keeps a house in Britain and flies back for a planned procedure is billed at 150%, in advance. A&E, GP services, family planning and NHS 111 sit outside the charging regime.
The pattern across all three: the international policy is reimbursed; the compulsory local scheme on top of it is treated as your own payroll deduction.
6. The container that is cheap and late
Right now, sea freight is unusually inexpensive and unusually unreliable at the same time, and the second fact costs more than the first saves.
Drewry's World Container Index on 1 October 2026 put Shanghai–Genoa at $3,702 per 40ft — 43% below its 9 July level of $6,463 — after twelve consecutive weeks of falls. Encouraging, until you read the reliability data. Xeneta's schedule reliability scorecard for August 2026, published 17 September 2026, found global on-time performance at 29%, and on the Far East–Europe lane just 6% of arrivals on time, with late arrivals averaging 8.2 days behind.
For a family, unreliability converts directly into money: additional weeks in temporary accommodation, furniture hire, replacement school uniform and kit bought because the shipment is still at sea, and double rent across the handover. This is the most predictable unexpected cost in the entire article, and the one least likely to appear in a shipping allowance.
A falling index also does nothing to protect you from the quote itself. The spread between removal companies for an identical job is wider than most families believe possible — we have written elsewhere about the €10,000 quote and the €3,000 quote we were given for the same container on the same route, which remains the clearest illustration we have of why you get five quotes and not one.
If you are shipping to Great Britain, Transfer of Residence relief has conditions that are easy to breach without noticing. You must have lived outside the UK for at least 12 consecutive months, owned and used the goods for at least six months, and imported them within 12 months of moving. Critically, for 12 months after the move you cannot lend, hire out, pledge or transfer the goods — selling the imported car in month nine triggers the duty and VAT you were relieved of (gov.uk guidance, updated 12 November 2025).
On cars, the honest advice is usually not to bring one. The most dramatic illustration available is Singapore, where the Certificate of Entitlement alone — before the car, before excise duty, ARF and GST — closed at S$130,001 for Category A and S$130,100 for Category B in the bidding round of 7 October 2026.
7. The dog
Pet relocation is among the least-covered items in any mobility policy, and Australia publishes its charges in enough detail to show why families are shocked. From the Department of Agriculture, Fisheries and Forestry:
- Import permit, first cat or dog: A$135 lodgement + A$491 assessment = A$626 (page updated 1 July 2026)
- Quarantine reservation charge: A$263 per animal, non-refundable
- Importation charge: A$1,053 per animal
- Accommodation at Mickleham: A$52 per animal per day — A$520 for the ten-day minimum
- Inspection and document assessment: A$78 per 30 minutes, per animal, and the same rate again for any non-compliance
That comes to A$2,462 in government charges for one dog on a ten-day stay, before flights, crate, vet or titre test. The A$78 half-hourly clock is the one that punishes paperwork errors, and the A$263 reservation is paid before you know your dates.
Two hidden ones worth naming. The IATA-compliant travel crate must be sized to the animal, so a growing puppy is often crated twice. And the rabies titre test carries a mandatory waiting period afterwards that sets the earliest date your animal can travel — which can force the family to fly first and pay boarding at the origin.
8. Tax, and the costs you left behind
A mid-year move routinely makes a family tax-resident in two countries for one year. Treaty tie-breakers resolve it, but they are applied retrospectively by an accountant, not automatically — and that accountant is itself a new recurring cost. As an illustration of scale, Greenback Tax Services' published price list (page dated 15 October 2026) runs to US$565 for a federal expat return, US$125 for an FBAR covering up to five accounts, US$185 per state return, and US$1,750 for a Streamlined Filing package. That is one vendor's list price, but it makes the point: an American family abroad acquires a four-figure annual compliance bill that did not exist at home.
Two mechanisms to be aware of without us putting a number on them, because current thresholds need checking case by case. Exit taxes — Germany's Wegzugsteuer and Canada's deemed-disposition rule on emigration — can tax unrealised gains on departure, producing a tax bill with no sale behind it and therefore no cash to pay it from. And the costs that stay at home: a retained property with insurance repriced as a let, letting agent commission and non-resident landlord tax; a car in storage; a storage unit.
From our own moves: the largest recurring cost of living abroad, for us, is the one we chose rather than the one we were charged. We spend four to six weeks each summer with grandparents and the wider family, and have done every year since our daughter was born. Flights for a family, annually, for as long as you live abroad, is a permanent line in the budget that starts life looking like a one-off holiday. Nearly every internationally mobile family we know has the same line. Almost none of them had it in the spreadsheet before they left.
9. What it costs to move your own money
The World Bank's Remittance Prices Worldwide (Issue 54, Q3 2025 data, published September 2025) measures the global average cost of sending US$200 at 6.36% — but the spread between channels is the useful part. Banks averaged 14.99%. Digital-only money transfer operators averaged 3.54%. By payout method, a bank account cost 7.86% against 3.61% for a debit card.
Two honest caveats. These are remittance corridors, typically into lower-income countries, so 14.99% is not what your bank charges on a Frankfurt–London transfer. And the data is 2025 vintage. The defensible reading is directional and still worth acting on: on the corridors the World Bank tracks, the bank channel costs roughly four times the digital-only one.
Keeping an account at home has its own threshold. HSBC's Expat Bank Account requires £75,000 in savings or investments, or existing Premier status with £10,000 to save or invest; there is no monthly fee while you meet the criteria and an underfunding fee if you stop (page undated, checked 16 October 2026). Non-resident banking tends to be free only above a high-asset line.
10. The second income that stops
Everything above is a fee. This one is not, and it is larger than all of them put together.
A two-income household plans a move on the assumption of two incomes. Then one of you accompanies the other, and for a period that is almost always longer than anyone planned for, the household runs on one salary while paying every cost in this article. That is the real shape of it. Not an expense that appears on a statement, but an income that quietly does not.
It happens in four distinct ways, and they are worth separating because the fix for each is different.
The visa may not permit work at all
This is a legal question, not a career one, and it is settled before you arrive.
For diplomatic and mission families the position is explicit. The US State Department maintains over 125 bilateral work agreements, plus de facto arrangements with a further 32 countries, allowing family members to work on the local economy. That is a wide net — and it is also a finite list, which means there are postings where the answer is simply no. Even where an agreement exists, the Department notes that each one carries its own terms: restricted fields of employment, limits on how many family members may apply, age limits for dependants, or a requirement to hold a job offer before applying. And there is a condition most people never consider until it applies to them: a family member who takes local employment gives up civil and administrative immunity for anything arising from that job.
Development-sector and NGO postings carry their own version of this, often governed by the host agreement rather than a published list. The question to ask is not "will there be work?" but "what does the status I am being given actually permit?"
Permitted, but not yet
Several systems allow a dependent partner to work but require them to obtain their own authorisation first — a separate application, filed after arrival, with its own processing queue. Until it is approved, taking a job is not an option. Those months are not a delay in someone's career. They are months of a household budget with one income in it.
The contrast is stark, and it is the single most useful thing to check before accepting a posting. A partner and children joining a UK Skilled Worker visa holder may work on arrival, with the sole exclusion of employment as a sportsperson or coach (gov.uk). No separate permit, no waiting. Between a system like that and one requiring a post-arrival application, the difference is several months of income — and nothing about the two postings will look different in the offer letter.
Permitted, legal, and still no job for a while
Then there is the ordinary difficulty of finding work in a country where you have no network, possibly no language, and a CV full of institutions nobody recognises. Employers hesitate over a candidate whose right to remain is tied to someone else's contract. Regulated professions — medicine, nursing, law, teaching, engineering, accountancy — cannot be practised at all until a local regulator says so.
The fees here are the small part, and we want to be clear about that, because they are what most articles count. A UK ENIC Statement of Comparability costs £49.50 (published price list, undated, checked 16 October 2026). Australia's Nursing and Midwifery Board charges an annual registration fee of A$193 for 2026–27. Those are real numbers and they are not the cost. The cost is the regulator's own assessment, the language testing, the exams re-sat, the supervised practice at reduced or no pay, and above all the months or years of salary not earned while it happens. A £49.50 statement sits at the front of a process that can run for two years.
How long that process runs, and what it costs, depends entirely on the profession and the country — which is why a general figure would be worth very little to you. The number that matters is your own. Find your regulator's published pathway for overseas-qualified applicants in the destination country, read it from end to end, and take the timeline in it seriously, because that timeline is what your household budget has to absorb.
The business that takes longer than planned
Many accompanying partners plan to work for themselves instead, and it is often the right answer — portable, independent of a local employer, and not hostage to a regulator. It is also, consistently, slower than people expect, for three reasons that compound.
The permission is different. A dependent permit that allows employment does not necessarily allow self-employment. They are frequently treated as separate categories, and the second is often the harder one. Some countries require a separate business registration, a local partner, or minimum capital before a foreign national may trade at all. Check the specific wording of the status, not the general principle that "you are allowed to work".
The setup takes time. Registering an entity, opening a business bank account without a local credit history, obtaining a tax number, and understanding what you are obliged to file are each a process rather than a form, and they run sequentially in most countries.
And revenue starts at zero. This is the part that budgets consistently miss. Whatever you built before, the client base, the referrals and the reputation were local to a place you no longer live in. Launching is not the milestone that matters — profitable is a much later date than launched, and the gap between them is paid for out of one salary.
The practical version: take whatever your most pessimistic estimate is for reaching a sustainable income, and budget as though it will take longer. If you are wrong, you have savings you did not need. The alternative error is considerably more expensive.
The arithmetic, and what follows it
Here is why this belongs at the end of an article about unexpected costs rather than in a career guide. The lost income arrives in exactly the same window as everything in sections one to nine. The visa fees, the school deposits, the rental deposit, the flights, the double rent while the container is at sea — all of it lands in the first months, which are precisely the months in which the household has dropped to a single salary. It is not simply one income instead of two. It is one income during the most expensive period of the entire move.
Two longer-tailed costs follow from it. Years without local employment usually mean years without pension or social-security contributions in either country, which is a cost that arrives decades later and is almost impossible to reverse. And a career interruption tends to depress earnings well beyond the break itself.
As for whether anyone else pays for this: ECA International's 2026 relocation benefits reporting (via Relocate, 19 March 2026) finds immigration support near-universal among surveyed organisations, while shipping and storage limits tighten and economy travel becomes the norm. On partner career support it says nothing at all. That absence is not proof that no employer helps — but it tells you where to expect the conversation to be hardest.
Three things to settle before you accept. Get in writing what the dependent status actually permits — employment, self-employment, both or neither — and whether a separate authorisation is needed. Find out how long that authorisation takes after arrival, because that number is the length of your single-income period. Then model the household on one salary for a period you have deliberately overestimated, and check the lowest balance you reach along the way rather than the annual total.
What to do with all of this
Not every cost here will apply to you. Most families meet four or five of them, and the damage is rarely any single number — it is that they arrive together, early, and before the first salary lands in the new country.
Three things change the outcome. Ask what is actually covered, in writing, item by item — "tuition and compulsory fees" and "the school bill" are different things, and so are "shipping" and "the cost of the shipment arriving three weeks late". Separate refundable from non-refundable when you build the budget, because the second category is what you lose if the move changes shape. And model the lowest balance on any date, not the monthly total — the problem is almost never the annual figure, it is the fortnight when the visa fees, the school deposit and the rental deposit all clear at once, in a month when only one of you is being paid.
Our free family moving-abroad cost calculator will give you a first picture of the shape of your own move. For the full method — the Cash-Flow Planner that shows your lowest balance on any date rather than only at month-end, the comparison tools, and the sequencing across all five stages of Decide, Prepare, Transit, Arrive and Thrive — that is what The Global Relocation System is for.
Keep reading: on the question that decides section ten, see can your partner work there — the visa question families ask too late, and on rebuilding a career or a business from the other side, work and identity as the global partner. For the full cost picture including shipping and setup, see what a family relocation actually costs.
This article covers planning and coordination. It is not legal, tax, immigration or financial advice, and where your own situation turns on a specific rule, check it with the issuing authority or a qualified adviser.