Why?

Because when you compare costs of setting up a uk company at 100 pounds a year including accounts to the costs of setting up an SL company 3006 euros plus set up costs, you can see the cost differences in uk, versus spanish formation. 5000 euros versus about 50 euros

The key is you are taxable and the employer must pay the spanish tax authority. Does all income then go to uk HQ and it gets a little complex with tax issues. The money goes to the HQ, and then it is resubmitted to Spain, if money is taxed in the uk, then there is a double taxation treaty.

or
Set up in UK
a branch in Spain
As an employee of the branch.
Where does the money go to. The UK or the branch in Spain?

eg. A spanish company pays your UK HQ, then it trickles down to the branch and then the person. Need to research more.

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