This depends heavily on visa type and how long you’ve lived in Spain. Digital Nomad Visa and Highly Skilled Professional Visa holders may qualify for the Beckham Law regime, taxed at a flat 24% on income up to €600,000 for up to six years. Standard Spanish tax residents are taxed on worldwide income at progressive rates up to 47%. Given the UAE’s zero personal income tax environment, this is one of the most important financial factors to model carefully before relocating — and it’s worth getting professional tax advice specific to your situation.