Spanish tax authorities say Colombian pop superstar Shakira owes income tax for 2011-2014, arguing that she was resident in Spain then.
They have asked Spanish prosecutors to open a tax evasion case against the singer Shakira, whose fortune is reckoned to be more than $200m (£176m).
The tax bill could be tens of millions of euros, Spanish media report.
Sources close to Shakira deny that there was any tax evasion and say she was outside Spain most of that time.
The sources – not named – said Shakira had always complied with her tax obligations.
The global superstar – also famous for philanthropic work – is the partner of FC Barcelona footballer Gerard Piqué. In 2015 she declared Spain to be her place of residence for all purposes.
The tax officials are seeking four years of unpaid taxes from all her global income – not just income generated in Spain.
Spain’s Efe news agency said Shakira’s auditors, PriceWaterhouseCoopers, had confirmed the tax investigation.
People who spend more than six months a year in Spain are considered residents for tax purposes.
In recent years Spain has seen several high-profile court cases involving football stars accused of tax-dodging.
Shakira has announced that she’ll play her first UK show since 2010 later this year, as part of her El Dorado world tour.
The Colombian pop icon, 40, will play London’s O2 Arena on June 11 – her first show since she last played the venue, before making a triumphant debut at Glastonbury.
The one-off show comes after the release of latest album El Dorado, which was released in May last year and reached Number One on iTunes in 37 countries across the globe.
“I can’t wait to be onstage in London again singing along with all of you, all of your favourites and mine”, Shakira said of the show.
TOUR NEWS! Shak just added new dates in Hamburg, London & Bordeaux to the European leg of her #ElDoradoWorldTour this summer. Tickets go on sale on Friday, but follow Shak on @Viber now at https://t.co/LIYdZQAqxD for exclusive presale access tomorrow! ShakHQ pic.twitter.com/esjJlhY8YW
— Shakira (@shakira) January 22, 2018