Overview
- ItaliaOggi calculates that taxes withheld in Italy on Sinner’s 2025 winnings in domestic tournaments total just under €1.5 million on roughly €5 million of prize money.
- Further Italian liabilities are reported for days worked in Italy through sponsorships and media appearances, plus taxes tied to property purchases in Milan of about €7 million.
- Advisor Alessandro Belluzzo confirms Sinner’s Monaco residency and Monaco‑based companies managing image rights, with those entities taxed in the Principality.
- Prize taxation varies by venue, with Italy typically withholding around 30% at source, the UK taxing via self‑assessment up to 45%, and some events such as Riyadh reported as tax‑exempt.
- Belluzzo characterizes Sinner as a global taxpayer contributing in multiple countries, while separate estimates cite significant fiscal returns from events like the ATP Finals.