Brazilian star footballer Neymar, who plays for French club Paris Saint-Germain, owes Spain € 34.6 million in unpaid taxes, according to official data released on Wednesday.
Neymar is on the Spanish tax authorities' blacklist "as one of the taxpayers.
Neymar played for the Spanish club in Barcelona from 2013 to 17 before moving to PSG for a world record for € 222 million.
As early as last year, the Spanish media reported that the tax authorities were chasing Neymar for unpaid taxes, but now the matter has received official confirmation.
The Spanish tax authorities, reached by the news agency AFP, did not say whether Neymar's debts were related to his transfer to Barcelona from the Brazilian club Santos.