The criteria isn't the same across Spain
Here's the point that confuses hosts the most: the criteria for telling the two regimes apart isn't the same in every autonomous community.
The clearest, best-verified example is the Comunitat Valenciana, which sets an explicit limit: transferring a whole home for up to 10 continuous days to the same tenant counts as a short-term tourist rental (VUT); from 11 days or more, it becomes a seasonal lease under the LAU. It's the shortest and most explicit definition in Spain on this point.
Other regions don't set as clear a number of days in their rules, and instead use broader criteria (purpose of the stay, guest turnover, whether hotel-style services like cleaning or linen changes are offered). For those regions, we use careful language until the exact criteria is confirmed with an official source.
Why getting it right matters so much
Labeling your rental as "seasonal" when it actually functions as a short-term tourist rental (high turnover, very short stays, hotel-style services) doesn't protect you from tourist registration — what it does is expose you to operating without the registration you actually needed, which is exactly the high-risk scenario the test looks for.
What to do if you're not sure
- Review how long your guests' stays typically last and what services you offer.
- Check the specific criteria for your region — don't assume the Comunitat Valenciana's 10-day limit applies elsewhere.
- If your situation with the applicable regime (long-stay or short-term) isn't clear, it's better to raise it proactively than to find out through a notice. Check it HERE in 2 minutes: free, you'll only answer 8 questions and we'll tell you where you stand on this point and on the rest of your compliance. (No account needed, no private data).