Tennis superstar faces a hefty tax bill on his earnings. And he'll have to file not just once but twice on his seven-figure earnings.

The 22-year-old, who has to celebrate his win, pulled off a after trailing by two sets. And the result netted him a cool £2.1million prize as he successfully defended his crown.

But the reports the titan will only pocket a little more than half that sum after Spanish Treasury technicians confirmed a slice will go to them. That's in addition to the 15% non-resident levy in France, which equates to roughly £330,000.

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Spain's tax authorities will claim 30% of his winnings in personal income tax, even though he won the title abroad. Despite this, Gestha, the union of Treasury technicians, has clarified that normal tax rules apply.

Their statement confirmed Alcaraz "will be taxed under personal income tax as a professional activity, deducting accommodation and stay expenses, expenses incurred for having his team of physical and sports trainers, and other deductible expenses."

When all is said and done, the ace will part with almost £888,000 combined in taxes. That will leave Alcaraz with around £1.3m to take home, which is admittedly still not exactly chump change.

Gestha calculated Alcaraz's total deductible expenses of about £256,000, noting it's tallied "without considering the sum of other incomes and advertising or image revenues he obtains throughout 2025, nor other reductions or deductions."

Alcaraz continued his relentless streak by clinching a historic victory over Sinner in the Roland Garros final. Their decider marked the first time a French Open final featured three tiebreaks and was also the first a singles title was won on a tiebreak.

Intriguingly, runner-up Sinner dodges the financial blow because he's a resident of tax haven Monaco. As such, he theoretically will only parts with £163,000 from his hefty £1.1m prize money pot.

So, despite Sinner taking second and pocketing roughly half of the champion's bounty, he stands to pocket just £350,000 less than Alcaraz. Nevertheless, there may not be any monetary value that could match the youngster's joy at seizing his fifth major trophy.

"To put it into words is really difficult honestly," he told after seizing the title in Paris. "To come from two sets down against the No. 1, the level that he was playing, it is unbelievable.

"It was the first time that I have come back from 2-0 down and honestly I just put my heart into it. I just tried to keep it going, not thinking about the result.

"I think to say it was one of the best finals in the history of the Grand Slams is really high status. I have to say, there have been better finals."