Spain’s former king Juan Carlos, who left his homeland under a cloud of scandal in August, has settled a back tax bill worth over €678,000 (£611,388) including interest and fines, his lawyers said on Wednesday. The lawyers, in a statement, provided no details about the back taxes . But the newspaper El Pais in an earlier report said the former monarch sought to settle certain alleged illegal credit card transactions with the revenue service to avoid being charged in an investigation and to be enable his return to Spain. “In any case, his majesty king Juan Carlos remains, as always, at the tax service’s disposal for any procedure it considers necessary,” the lawyers said. Prosecutors at Spain’s supreme court have opened several investigations into Juan Carlos’ business dealings, including those linked to a high-speed train contract in Saudi Arabia. Juan Carlos has been living in United Arab Emirates since he left Spain. Through his lawyers, he has repeatedly declined to comment on corruption allegations. Spanish monarchs have immunity during their reign, but Juan Carlos’ abdication in 2014 in favour of his son potentially leaves him vulnerable to prosecution.