The 90/180 rule and your boat in Spain — how UK owners make it work

Before 2021, plenty of British owners spent half the year on the boat in Spain without thinking about it. Now the arithmetic matters: as a non-EU visitor you can spend 90 days in any rolling 180-day period in the Schengen area, unless you hold residency or a visa that says otherwise.

For boat owners this changes one thing fundamentally. You are now away from the boat for at least half the year, by law.

How the rolling window actually works

It isn't "90 days per half-year." On any given day, look back over the previous 180 days and count how many of them you spent in Schengen. That total has to be 90 or fewer.

Practical consequences:

• Days count as whole days. Arrival day and departure day each count.
• Time in France, Italy, Portugal, Greece — all Schengen — comes out of the same allowance.
• You can't "reset" by leaving for a weekend. The window rolls.

The European Commission publishes a short-stay calculator, and it's worth running your planned trips through it before you book flights.

The patterns owners settle into

Almost everyone we work with lands on one of three shapes:

1. Two long stays. Six weeks in May–June, six weeks in September–October. Best weather, avoids August heat and August prices. The boat then sits unused for roughly seven months of the year across two long gaps.

2. Lots of short trips. Six or seven long weekends spread through the year. Keeps the allowance intact for a bigger summer block. Fits people still working. The catch is that a long weekend is easily half-consumed by arrival prep unless someone has readied the boat.

3. One big summer. Most of July and August aboard, nothing else. Simplest to plan, hardest on the boat — five months of Levante, calima, and UV between visits, mostly unwatched.

What the 90/180 rule does to the boat

The boat doesn't care about immigration law, but it responds to the consequence of it:

• Longer unattended gaps. Batteries flatten, bilges collect water, mooring lines chafe, and small leaks become big ones with nobody there to notice.
• Storm exposure. Levante blows arrive in autumn and spring — often exactly when your allowance has run out.
• UV and calima. Summer sun degrades canvas, lines and gelcoat while you're back in the UK; calima dust bakes onto everything.
• Insurance conditions. Some policies now specify a maximum unattended period or require documented checks. Worth reading your wording before you plan a long absence.

Making the days you do have count

The days are finite, so the thing to protect is the ratio of sailing days to fixing days. Things that help:

• A prep visit before you land. Fridge cold, water topped up, engine run under load, deck rinsed — so the first morning is a departure, not a work day. Our 24-hour readiness checklist covers what that looks like.
• Problems found in your absence, not on your arrival. A failed impeller discovered in March by someone local is a phone call. Discovered on day one of your 10-day trip, it's two days gone.
• Photo reports between visits. You can plan the next trip's jobs from the UK instead of arriving to a surprise.
• A key holder. Marinas, surveyors, engineers and insurers all sometimes need access. Without a local key holder, every one of those becomes a flight.

Does residency change this?

Spanish residency or a suitable visa removes the 90-day cap, but it brings tax residency questions that go well beyond a boat blog — including how Spain treats worldwide income and assets. If you're seriously considering it, take proper cross-border tax advice before you apply, not after.

Most owners decide the boat isn't reason enough on its own, and instead solve the practical problem: someone local looking after it during the 275-odd days a year they can't be there.

Where we fit

We look after yachts for owners who can't be on the coast every week — regular checks, photo reports, key holding, and prep visits timed to your arrivals. It's built around exactly the pattern the 90/180 rule creates.

If that's your situation, get in touch and we'll work out a schedule that fits your trips.

General guidance only, not legal or immigration advice. Check current rules with official sources before travelling.