I own a very successful company in the UK, which is now largely run by the management people in the UK. This allows me to live in Spain for much of the year. I charge fees to my UK company through a Spanish company that is wholly owned by my wife. Does this set-up have any implications for UK tax?
Your UK company and your wife’s Spanish company are considered to be associated companies by the UK Taxman, because the people controlling the two companies are married to each other. It makes no difference that the companies are registered in different countries. The profit thresholds that determine the rate of corporation tax paid by your UK company must be divided by the number of associated companies plus one. For example, the higher rate of corporation tax (currently 28%) is due when profits exceed £1.5 million, but where there is one associated company this higher tax rate starts when profits exceed £750,000.