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Spain — Naturalization
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This is worth settling before you count a single year, because Spanish law draws a hard line here and a lot of people are on the wrong side of it without knowing.
Spanish immigration law distinguishes a residencia from an estancia — a residence from a stay. Only a residencia counts towards naturalisation. The distinction is not about how long you have been in the country or how settled you are; it is about which legal category your permit falls into.
What counts: work permits, whether employed or self-employed; the family member card held by relatives of EU or Spanish citizens; the non-lucrative visa; the remote-work or digital nomad authorisation; the highly qualified professional and researcher permits; arraigo; and long-term residence.
What does not count: the student permit, which is legally a stay, and short-stay or tourist entry. The student point has been litigated repeatedly and the courts have been consistent — time studying in Spain contributes nothing to the naturalisation clock, even though it can convert into a permit that does.
Your card will say which it is. Look for the wording on the TIE itself, or the resolution granting it, which states the authorisation type. If it says estancia, the clock has not started; if it says residencia, it has, and the date on it is the date that matters. Send us a photograph of the card and we can tell you immediately.