Real Madrid, Barcelona, Athletic Club and Osasuna will have to pay millions of euros in back taxes, according to Europe’s top court.

The European Commission in its 2016 ruling said that the four clubs enjoyed a 25% tax rate for more than 20 years, giving them an unfair advantage over the 30% norm for sports companies.

The Spanish clubs, which enjoyed the lower tax rate because they were treated as non-profit organisations instead of professional football clubs with limited liability, were ordered to pay up to €5 million each in back taxes.