Is it better to do a joint or separate tax declaration if you're a couple in Spain?

The deadline for filing your Spanish annual income tax return is just a couple of months away, but working out whether to file jointly or as an individual can be tricky. Here's everything you need to know in order to help you decide.

Is it better to do a joint or separate tax declaration if you're a couple in Spain?
The deadline for filing your Spanish annual income tax return is just a couple of months away, but working out whether to file jointly or as an individual can be tricky. Here's everything you need to know in order to help you decide.