10 Rules That Cost Foreign Property Owners Thousands in Fines (France, Spain, UK)
Many foreign property owners discover the rules only after the fine arrives.
A missing registration number, an unreported guest, or a forgotten tax return can quickly cost thousands. The fines are real, regularly applied, and often disproportionate to the perceived severity of the oversight.
These are the 10 rules that generate the largest fines for foreign property owners in France, Spain, and the UK.
Where the biggest fines come from
1. Illegal short-term rental use (France)
The largest fine in French STR enforcement — and the easiest to trigger.
In certain French cities, you must obtain change-of-use authorisation before renting residential property on a short-term basis. This is not a formality — it is a zoning-level requirement.
Cities where this commonly applies:
- Paris
- Nice
- Lyon
- Bordeaux
Paris issued more than €1 million in STR fines during recent enforcement campaigns. This is the single largest fine category in French short-term rental regulation.
2. Renting without a tourist licence (Spain)
Most Spanish regions require a licence before you even advertise.
Many Spanish regions require a tourist rental licence before a property can be advertised or rented short-term. The rules vary by autonomous community.
Common examples:
- Andalusia (VFT)
- Balearic Islands
- Catalonia
- Valencia
Some regions can exceed €100,000.
Key point
3. Not reporting guest identities to police (Spain)
Spain requires real-time guest reporting — and commonly enforces it.
Hosts in Spain must register with the police and submit guest identities for every stay. This obligation applies regardless of how the property is marketed.
This is one of the most commonly enforced rules in Spanish STR regulation.
4. Missing tourist rental registration number (France)
Platforms are increasingly blocking listings without this number.
Many French cities require hosts to obtain a 13-digit registration number before listing a property for short-term rental. Platforms like Airbnb increasingly enforce this at the listing level.
5. Gas safety certificate missing (UK)
Annual renewal, no exceptions — applies to any property with gas appliances.
Any UK rental property with gas appliances must have a valid Gas Safety Certificate, renewed every 12 months by a Gas Safe registered engineer.
How exposed are you?
Amanda maps which of these rules apply to your specific situation — across every country where you own property.
Check my exposure →6. Electrical safety certificate missing (UK)
EICR every five years — with one of the highest fines in UK lettings.
UK rental properties require an Electrical Installation Condition Report (EICR), renewed every five years. This applies to both long-term and short-term lets.
This is one of the highest fixed-penalty fines in UK lettings regulation.
7. Not declaring rental income tax (Spain)
Many owners assume Airbnb handles taxes. It does not.
Foreign owners who rent property in Spain must file Modelo 210 quarterly. This is a non-resident income tax return — separate from any platform withholding.
Key point
8. Not declaring furnished rental income (France)
Even small amounts of rental income must be declared under BIC.
Foreign owners who rent furnished property in France must declare the income under the BIC (Bénéfices Industriels et Commerciaux) regime. This applies regardless of the amount.
9. Deposit not protected (UK)
A simple administrative step that creates outsized liability when missed.
If you take a deposit on a long-term let in England or Wales, you must place it in an approved tenancy deposit scheme within 30 days.
Awarded to the tenant. You also lose the ability to serve a Section 21 notice.
10. Not registering with the tax authority (Spain)
Without this step, all other Spanish tax filings become impossible.
Foreign owners in Spain must obtain an NIE (tax identification number) and register with AEAT (the Spanish tax authority). Without this, quarterly filings like Modelo 210 cannot be submitted.
Key point
Need a NIE?
NIE is the foundation: without it, every other Spanish filing — Modelo 210, regional licences, even bank accounts — is blocked.
Get a ready-to-file NIE pack →The pattern behind these fines
Nearly all fines come from three mistakes.
- Illegal STR activity — no licence, wrong zoning, missing registration number. These carry the largest fines and are increasingly enforced at the platform level.
- Guest identity reporting — Spain is extremely strict and commonly enforces. France is lighter.
- Missed tax filings — forgetting quarterly Modelo 210 or not declaring BIC income. Penalties compound quickly because they are percentage-based.
The common thread: most of these obligations are invisible until enforcement. Foreign owners discover them only when a fine arrives or a platform blocks their listing.
Making these obligations visible before they become penalties is the first step toward managing them.
What fines can foreign property owners face in France, Spain, or the UK?
Foreign property owners in France, Spain, and the UK can face fines ranging from a few thousand euros to over €100,000 depending on the violation. The most severe penalties apply to illegal short-term rental activity (up to €50,000 in France, over €100,000 in some Spanish regions), missing safety certificates (up to £30,000 in the UK), and unreported rental income (50–150% of the unpaid tax in Spain). Many of these obligations are not visible to owners until enforcement action begins.
Related topic
Own property in France? See which declarations and registrations may apply to you.
Related guides
Not sure which rules apply to you? Amanda maps the rules that apply to your situation — across every country where you own property.
This article is for general information only and does not constitute tax or legal advice. Fine amounts are indicative and may change with legislation. Individual circumstances vary.