How many days can a non-resident spend in Spain without becoming tax resident?

Many overseas owners of a home in Ibiza or elsewhere in Spain believe that staying under 183 days a year is enough to remain non-resident. That threshold matters, but it is not the only test. Tax residency is determined under Article 9 of Law 35/2006 on IRPF (Spanish personal income tax), and meeting just one of its tests is enough to make you resident.

Spanish tax residency tests

• Spending more than 183 days in Spain in the calendar year (January to December). Temporary absences count towards the days spent in Spain unless you can prove tax residency in another country, usually with a certificate of tax residence issued by that country's tax authority.
• Centre of economic interests: you are resident if the main core or base of your business activities or economic interests is in Spain, directly or indirectly, even if you spend fewer than 183 days here.
• Family presumption: unless proven otherwise, you are presumed resident if your spouse (not legally separated) and dependent minor children habitually live in Spain.

Owning a home in Spain does not make you resident

Owning a house in Spain, spending your holidays there or letting it out does not, by itself, determine tax residency. Being registered on the local census (empadronamiento) or other information may be taken as evidence, but what counts is whether you meet any of the tests above.

What if another country also treats me as resident?

Spain and your home country may both consider you resident. In that case, the double taxation agreement between the two countries applies, if there is one. These treaties use tie-breaker tests in order:

• permanent home available to you;
• centre of vital interests;
• habitual abode;
• nationality.

What changes if you become tax resident

• If you are resident, you pay IRPF on your worldwide income, not just your Spanish income. Reporting obligations may also arise, such as the overseas assets declaration (Modelo 720), and wealth tax is then calculated on all your assets wherever they are.
• If you remain non-resident, you pay Non-Resident Income Tax only on Spanish-source income, for example through Modelo 210 (Spanish non-resident income tax return) for your property.

Practical tips

• Keep a record of the days you spend in Spain and keep tickets, boarding passes and receipts.
• Request a certificate of tax residence from your home country every year.
• Do not confuse tax residency with the stay limits under immigration rules (such as the Schengen 90/180-day rule): they are separate issues.
• Before spending long periods in Spain or moving your business here, have your situation reviewed by an adviser.