How the DGT's position has evolved
Current position
Employment income is generally taxed in the worker's State of residence. However, if the employment is physically exercised in another State, said State has taxing authority over the income derived from that activity. In cases of teleworking, taxation is governed by the physical location where the employee provides the service.
The DGT's position remains constant in the application of double taxation treaties. The evolution shows a recurring focus on the worker's physical location as the determining factor for taxing authority. No doctrinal changes are observed, but rather a systematic application of the source rule versus residence.
Analysis based on 44 of 46 rulings with a stated position. Updated 15 September 2026.