Most likely to catch you out
- 1If you live in Spain and are paid for sits, you'd normally register as autónomo; social-security costs apply. (A visitor can't take paid work at all.)
- 2PPP dangerous breeds require licence and €120,000 insurance. Regional communities may add breeds.
- 3Dogs cannot be left unattended for more than 24 hours (Ley 7/2023).
- 4AEPD actively fines for undisclosed cameras — including smart doorbells.
Where you sit changes what matters
The same law lands differently depending on which chair you're in.
- Coming from outside the EU? Your 90 days in any 180 are tourism only, and whether an unpaid sit counts as “work” is unsettled here — answer border questions truthfully, and remember that a letter from a housesitting website saying a sit is fine is that company's view, not the law.
- You're responsible in law for the animal while it's in your care — and a listed “dangerous” (PPP) dog needs a muzzle, a short lead and the owner's licence, so check you can lawfully handle it.
- An EU licence is fine; from further afield you may need an international permit alongside it — and don't drive until you know the owner's policy covers you. The drink-drive limit is low: 0.5g/L, just 0.3 in your first two years.
- You're staying on the owner's permission, not as a tenant — the normal, fine position. Clear dates and no rent keep it that way.
- The “okupa” worry, honestly: a documented, time-limited sit is not a squat, and a lived-in home is far safer than an empty one — but if a sitter won't leave, removing them is a court matter, so keep it clearly dated and in writing (and never cut off the utilities).
- Disclose every camera in writing before arrival — the AEPD actively fines undisclosed home cameras, smart doorbells included, and one in a private space is a serious matter.
- Check your motor policy covers another driver before you leave the keys — Spanish cover follows the car, but many policies name who may drive or add an excess.
- Leave written authorisation for emergency vet care, with a spending cap — no Spanish rule explicitly lets a sitter authorise treatment, so that note is what lets them act fast.
The things worth getting right
Where the honest answer is “it depends”, we say so, and point you to the official source.
Immigration & “is sitting work?”
The honest position is unsettled. EU, EEA and Swiss citizens have free movement, so for them it simply isn't a question. For everyone else a Schengen stay is tourism only — 90 days in any 180 — and while no Spanish rule squarely settles whether an unpaid sit counts as work, free accommodation can be read as a form of payment, so there's a real risk. Sharpest for non-EU visitors at the border.
Spain has not specifically addressed housesitting under immigration law. Schengen 90/180-day rule applies. Internal enforcement is minimal once inside the zone.
Cameras, recording & privacy
AEPD fines even small-scale domestic camera violations (€300–€3,000 typical). Smart doorbell cases are a particular enforcement focus. Footage retention maximum 30 days. This is one of the most actively enforced camera privacy regimes in Europe.
Consent: Disclosure required. Actively enforced.. Most camera disputes here are handled civilly — but a camera in a private space is criminal almost everywhere.
Animals & the law
Potentially Dangerous Breeds (PPP) list maintained under Ley 7/2023 including Pit Bull, Rottweiler, Dogo Argentino, plus regional additions. Owners need administrative license and minimum €120,000 insurance coverage. Regional autonomous communities may add breeds to the national list. Under Ley 7/2023, dogs cannot be left unattended for more than 24 hours.
Driving the owner's car
Spanish motor cover follows the car (el seguro sigue al coche), so a permitted driver is generally covered for third-party liability — but many policies restrict who may drive (conductor designado) or add an excess for an additional or young driver. Confirm the owner's policy covers the sitter before the keys change hands.
Drink-drive limit: 0.5g/L blood (0.25mg/L breath) — the highest readings (from 1.2g/L) are a criminal offence under the Código Penal, not just a fine (0.3g/L (0.15mg/L breath) in your first two years and for professional drivers).
The home — licence, not tenancy
Spanish rental law provides strong tenant protections. While a housesitting licence agreement is explicitly not an arrendamiento, Spanish courts may interpret a long-term arrangement differently. Legal advice recommended for longer sits.
Safeguard: Explicit licence agreement. Keep the arrangement clearly short-term or seek legal advice.
Courts, claims & “is it worth pursuing?”
For sums above €2,000 the mandatory abogado + procurador is the real cost driver and can make a mid-sized claim uneconomic. Indicative figures — they swing on the country-pair and whether the other side has reachable assets.
Juicio verbal (the small-amount procedure) in the Juzgado de Primera Instancia — €15,000 (cases up to €3,000 cannot be appealed).
At home vs. across a border
A handful of these answers flip entirely depending on whether you’re local or visiting from abroad. The rest bind whoever’s standing there.
Sitting at home (or from the EU)
No immigration question. Your own licence, your own healthcare. A money dispute stays inside one fast EU enforcement regime.
Visiting from outside the EU
The “is this work?” question wakes up at the Schengen border. Your licence may need a translation or permit, healthcare needs a card or insurance, and a dispute that crosses a border is slow to enforce. If the sit is unpaid, take your signed agreement with you. It shows what the two of you actually agreed.
The next tier
Tax & money
Benefit-in-kind rules apply in employment. No specific ruling for informal housesitting exchanges. Self-employment route: Autónomo (self-employed registration).
Emergencies & healthcare
112 reaches all emergency services. EU/UK residents use an EHIC/GHIC at a public health centre (centro de salud) or state hospital; other visitors need travel insurance. To report a crime, make a denuncia at the Policía Nacional or Guardia Civil, or call 112.
Guests & registration
A short-stay sitter does not register on the padrón (empadronamiento) — that is municipal registration for habitual residents (six months or more), and town halls reject short-stay arrangements as proof. Spain's guest-reporting duty (the parte de viajeros) falls on tourist-accommodation businesses and hosts letting for reward, not on a private homeowner lending their home unpaid.
Your data & privacy
Privacy law: AEPD (Agencia Española de Protección de Datos). You have access and erasure rights over your own data.
Tall tales, checked
Sorted into myth, part true and true. The ones particular to this country each carry a source; the last two are about how agreements work everywhere.
“If your sitter won't leave, “okupa” rights kick in and you'll never get them out.”
Sarah hands James the keys to her Valencia flat for three weeks, and a friend warns her she's mad — the moment he's inside he's an okupa she'll spend a year in court to shift. The horror stories are real enough, but they're about empty flats and people who broke in, not a sitter invited with the dates in writing. Where Sarah could still come unstuck is the slow bit: if James simply refused to go, getting him out runs through a court, not a locksmith.
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A documented, time-limited sit makes James a guest by permission (precario), not an okupa — Spain's squatting offences (usurpación, allanamiento de morada) target people who take a property without consent. Recovering possession from someone who won't leave is a civil action (desahucio por precario), slower than in the UK; but the 2025 reform (Organic Law 1/2025, in force April 2025) added fast-track trials for genuine trespass. The real protection is a clearly dated written licence — and never cutting off the utilities, which is itself an offence (coacciones).
BOE · Ley Orgánica 1/2025 (okupación fast-track) ↗“A dog's fine on its own for a weekend as long as there's food and water down.”
Sarah plans a two-night city break and assumes James can leave the dog with plenty of food and water and just look in once. A neighbour tells her that won't do in Spain any more — and the neighbour's right.
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Since Ley 7/2023, leaving a dog unsupervised for more than 24 consecutive hours is an offence — a genuine, recent statutory duty (some of the law's wider machinery, like compulsory insurance for all dogs, is still pending an implementing decree). For a sit it means real daily presence and company, not a flying visit to refill the bowls.
BOE · Ley 7/2023 (animal welfare) ↗“A dog's a dog — if you can walk one, you can walk the neighbour's too.”
To be helpful, James offers to take the neighbour's Rottweiler to the park alongside Sarah's spaniel, both off the lead. With that breed, in Spain, that single walk could be an offence.
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Spain's potentially-dangerous-breeds (PPP) regime is strict: a listed dog needs a muzzle, a short non-retractable lead (max 2 metres), and its keeper's administrative licence plus civil-liability insurance of at least €120,000 — and whoever holds the lead is expected to carry the paperwork. Some autonomous communities add breeds or raise the cover. Handling a PPP dog without all this is an administrative offence, so check before you offer.
BOE · Real Decreto 287/2002 (PPP dogs) ↗“It's my house — I can point a camera wherever I like.”
Sarah fits a smart video doorbell that also catches the shared landing and a slice of the street, and doesn't think to mention it before James arrives.
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You can film your own private space, but Spain's data regulator (the AEPD) actively fines home cameras — smart doorbells are a particular target — that capture the public street, communal areas, or a person without telling them, and footage can't be kept beyond 30 days. A camera in a private space such as a bedroom or bathroom is a serious matter. The fix is simple: disclose every camera, in writing, before the sitter arrives.
AEPD · Home video surveillance ↗“You can't stay in a Spanish home for weeks without signing on at the town hall.”
Before a month-long sit in Málaga, James talks himself into a panic: doesn't he need an NIE, and shouldn't he register at the town hall, or he's there illegally? Neither — and trying would only waste an afternoon.
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The padrón (empadronamiento) is municipal registration for habitual residents — six months or more — and town halls reject a short stay as proof, so a sitter neither needs nor can register. An NIE is for property, financial or residency matters, not a visit. Spain's guest-reporting duty (the parte de viajeros) falls on tourist-accommodation businesses, not a private homeowner lending their home unpaid.
BOE · Ley 7/1985 (municipal padrón) ↗“There's no way a bit of dog mess could ever be traced back to you.”
On a quiet Málaga morning James walks Sarah's dog, it does its business, there's no bin in sight and no one about — who could ever prove whose dog it was?
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In much of Spain, they can — and increasingly do. National law (Ley 7/2023, art. 26) makes whoever walks the dog responsible for picking up faeces and for rinsing urine off pavements and doorways in public passage areas, with municipal fines from tens of euros up to around €3,000 in some cities. The twist: dozens of towns (Málaga, Xàtiva, Alcalá de Henares) now run canine DNA registries — the dog gives a saliva sample on registration, and abandoned mess is lab-matched to its profile. So in a DNA town the fine lands on the registered owner even when a sitter held the lead; elsewhere it's the sitter, caught in the act. This is public-space enforcement — your own garden is another matter.
Consejo General de la Abogacía · canine DNA identification ↗“It's unpaid and nothing's in writing, so there's no real agreement — and nothing's enforceable.”
James agrees to mind Sarah's flat and her two cats for a fortnight while she's away — no money, nothing signed, just a few texts and a chat at the door. Sarah comes home, blames him for a scratched table, and insists there was never a 'real' agreement to break. But there was: each of them gave the other something they wanted — James's care in return for Sarah's keys and a roof over his head — and that swap is exactly what the law treats as a deal, cash or no cash. What Sarah would struggle to pin down isn't the missing money; it's what the two of them actually agreed in the first place.
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Money isn't the test. Across legal systems, what makes an arrangement binding is that two people genuinely agreed to it and meant it to count — not whether cash changed hands or anything was signed, and it can be spoken or shown by conduct rather than written down. (Some systems look for something given on each side — here, James's care for Sarah's keys and a roof; others ask only that the promise was seriously meant. A housesit clears either bar.) So 'no cash, nothing signed' is the wrong line everywhere. The subtler, equally universal catch: a purely social favour can fall short of an intended legal commitment, and even a binding deal is painful to prove once memories differ. Agreeing clear terms up front helps with both, which is the point of agreeing them.
“A handshake or a few texts can't be a real contract — it has to be a formal signed document.”
Sarah and James set the whole sit up over WhatsApp — the dates, the dog's walks, who covers the heating — and because nothing's signed, James assumes none of it really counts. It does. A deal struck by text, or with a nod at the door, can bind just as tightly as a printed page. The paperwork was never the magic; it's the receipt, so neither of them can later 'remember' it differently.
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In most systems an agreement can be oral or formed by conduct; a signature and a formal document aren't what make it binding. What's hard about an informal deal isn't its validity — it's proving what was actually agreed once memories differ. Writing the terms down doesn't create the obligation; it records it, so nobody has to argue about it later.
Read another country
Same shape everywhere — the things most likely to catch you out, wherever you’re headed.