What are the benefits of being a fiscal resident of Spain?

Many people ask what the benefits of being a fiscal resident of Spain are. This is a complicated question and an important one. It is best to discuss this with a specialised tax consultant as every one´s personal situation is unique, but in general there are advantages to being a resident of Spain, especially when it comes time to sell.
The first advantage is that there is no retention for residents at the point of sale, whereby for non-residents there is a retention of 3% of the purchase price.