How the DGT's position has evolved
Current position
The taxation of Spanish-source income depends on the tax residence of the taxpayer and the application of Double Taxation Conventions (DTC). For non-residents, income from real estate in Spain may be taxed in Spanish territory, whereas professional services provided by residents in other States are only taxed in their country of residence unless they have a fixed base in Spain.
The DGT's position remains constant in the application of the residence criteria of the LIRPF (Personal Income Tax Law) and the use of the tie-breaker rules of the DTC. No doctrinal change is observed, but rather a repeated application of domestic regulations and international treaties to determine taxing authority over Spanish-source income.
Turning points
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Clarifies that taxpayers under the special regime of article 93 of the LIRPF cannot be considered residents for the purposes of a DTC, as they are taxed exclusively on Spanish-source income.
Analysis based on 25 of 27 rulings with a stated position. Updated 24 September 2026.