The tax regulations for expats depend mostly on their country of origin and type of employment. These details determine whether you have to pay taxes in Spain and how exactly you are required to pay them. US citizens, for instance, should contact the Internal Revenue Service in the United States for more information or refer to the Income Tax Convention with Spain.
Spain has signed double taxation avoidance agreements (DTAA) with many different countries. For expats it is important to figure out if they fall under one of those agreements and, if so, which сountry’s taxes they are supposed to pay. Check the UN Database to see what regulations, if any, apply to you. Are you from a non-EU country and your country of origin has not signed a DTAA with Spain? In that case, you are required to pay your taxes in Spain.
At the end of the day, taxation can be quite difficult to figure out, no matter if you fall under a DTAA or not. Thus, you should always refer to the Spanish tax authorities for more information. It is also recommended to turn to a tax advisor or an attorney who is experienced in working with expats.
Contact KakDoma kakdoma@kakdomabcn.com to arrange an appointment with the tax advisor.
Origin:
https://www.internations.org/barcelona-expats/guide/working-in-barcelona-15701/expat-business-life-in-barcelona-2