Authority responsible for the information
Ministry of Finance
Spanish Tax Office (AEAT)
Department of Tax Management
Sub-Directorate General for Information and Assistance
Last update: 20-03-2026
If an international double taxation agreement signed between Spain and another country is applicable, check the provisions of the agreement to obtain information on the taxation powers of each country and, where applicable, the measures for alleviating double taxation.
The agreements list types of income and contain provisions, with respect to each one, on the tax powers pertaining to each Contracting State:
Natural persons or entities resident for tax purposes in Spain are liable for:
If the foreign income comes from a country with which Spain has signed an international double taxation agreement, check the provisions of the agreement to obtain information on the taxation powers with respect to that income and, where applicable, the measures applicable for alleviating double taxation.
Non-resident natural persons and entities will be considered liable for Non-Resident Income Tax (IRNR) if they earn income in Spanish territory, as defined under that tax regime.
If the taxpayer is resident in a country with which Spain has signed a double taxation agreement, the provisions of that agreement will apply since, in some cases, the taxation is lower and, in others, if certain requirements are met, the income is not taxable in Spain.
If, in application of an agreement, the income:
The activity of the tax authorities is regulated. Tax legislation provides that tax assessments issued by the tax authorities may be challenged by the parties concerned in the event of a disagreement, pursuant to Article 222 et seq. of the General Spanish General Tax Law, and the relevant implementing regulation on administrative review. The statements notifying the result of a tax assessment always state how to appeal and include the relevant deadline.
Anyone wishing to challenge the assessment must choose, within a maximum period of 1 month from the day following the date of notification, between:
Both appeals may be filed via the Tax Office website, using the digital signature systems permitted.
Ministry of Finance
Spanish Tax Office (AEAT)
Department of Tax Management
Sub-Directorate General for Information and Assistance