Hidden Home-Buying Costs No One Warns You About, Country by Country
Published 18 August 2026 · 9 min read · By the BecomeHH Team
Buy the same €400,000 apartment in Bucharest and in Barcelona, and the bill on top of the price differs by roughly €42,000. Not because one country is pricier — because notary fees, agent commission and transfer tax stack up completely differently depending where you sign.
Every buying guide mentions "closing costs." Almost none put a number on them, because the number changes so much by country that a single global rule is useless. So here it is broken out properly: what these costs actually are, and what they add up to in all 17 countries BecomeHH tracks.
It isn't really "hidden" — it's just unbundled
The costs on top of a purchase price aren't secret; they're just split across several bills that never appear on the listing. There are three buckets in almost every country:
- Notary or legal fees — the professional (usually a notary in civil-law countries, a solicitor/attorney elsewhere) who verifies title and executes the deed.
- Transfer tax / stamp duty — collected by the government, often through the same notary at signing, so it feels like "one bill" even though most of it is tax, not a service fee.
- Agent commission — who pays it (buyer, seller, or split) varies enormously by country and even by local custom within a country.
The first two are usually bundled together in official sources and in BecomeHH's own data, because in practice a notary collects both at the same signing. That's the number in the table below, shown separately from agent commission so you can see both pieces.
The 17-country breakdown
| Country | Notary + transfer tax (resale) | Typical agent commission | Total on top of price |
|---|---|---|---|
| 🇪🇸 Spain | 10.0% | 4.0% | 14.0% |
| 🇫🇷 France | 8.0% | 3.5% | 11.5% |
| 🇵🇹 Portugal | 8.0% | 3.5% | 11.5% |
| 🇦🇹 Austria | 6.1% | 3.6% | 9.7% |
| 🇩🇪 Germany | 5.0% | 3.5% | 8.5% |
| 🇦🇺 Australia | 4.5% | 2.5% | 7.0% |
| 🇹🇭 Thailand | 5.0% | 2.0% | 7.0% |
| 🇦🇪 UAE (Dubai) | 4.0% | 2.0% | 6.0% |
| 🇯🇵 Japan | 3.0% | 3.0% | 6.0% |
| 🇨🇦 Canada | 2.0% | 4.0% | 6.0% |
| 🇧🇷 Brazil | 4.5% | 1.5% | 6.0% |
| 🇬🇧 United Kingdom | 4.0% | 1.5% | 5.5% |
| 🇮🇹 Italy | 2.0% | 3.5% | 5.5% |
| 🇨🇳 China | 3.0% | 2.0% | 5.0% |
| 🇸🇬 Singapore | 4.0% | 1.0% | 5.0% |
| 🇺🇸 USA | 1.5% | 3.0% | 4.5% |
| 🇷🇴 Romania | 1.5% | 2.0% | 3.5% |
📌 Figures are for a resale (existing) property; new-build often carries a different transfer-tax rate — France's drops from 8.0% to about 3.0%, for example. See each country's page on BecomeHH for the new-build figure and full sourcing.
Enter your target price and country and see the full buying-cost breakdown — notary, agent and tax, itemised.
Open the Hidden Buying Costs CalculatorWhy the range is this wide
Three things drive the spread between a 3.5% country and a 14% one. First, whether transfer tax is a flat national rate or set regionally — Spain's ITP varies by autonomous community, which is part of why its national figure runs so high. Second, whether agent commission is customarily paid by the buyer, the seller, or split — in the US and Brazil it's traditionally seller-paid in practice even though it shows up in the total cost of the transaction. Third, whether the government gives new-build a discount to encourage construction, which is why France's 8% resale figure is roughly half that for an off-plan purchase.
The three numbers to ask for before you fall in love with a listing
Before you get emotionally attached to a property, get three figures from whoever is helping you buy: the exact notary/transfer-tax rate for that property type (resale vs new-build often differ), whether the agent fee is added on top of the price you're offering or already inside it, and whether your mortgage lender will finance the buying costs or only the price — most won't, which means the percentages above need to exist as cash before you complete, not spread across the loan.
Sources
Notary and transfer-tax rates per country: official notary bodies and tax authorities listed on each BecomeHH country page (Chambre des Notaires de France, Colegio de Notarios de España, Uniunea Notarilor Publici din România, HM Land Registry, Bundesnotarkammer and equivalents), verified July 2026. Agent commission figures are typical market ranges, not fixed by law in most markets — always confirm with your own agent's contract. Educational content, not financial or legal advice.