Holywood, Co Down's Rory McIlroy is now the world's 17th highest-paid athlete, according to Forbes, earning over 40m before tax from winnings and sponsorship. His biggest endorsement deal was a 160m agreement with Nike, but last August the sports giant announced it was pulling out of the golf clubs and equipment business.
He also has lucrative deals with Bose, Omega and Upper Deck. He drives a 380,000 Lamborghini Aventador and has a 10m home in Palm Beach, Florida, as well as property in Dubai and Northern Ireland.
McIlroy has switched much of the financial operations of his empire to Ireland.
Latest accounts for Rory McIlroy Management Services Ltd show the firm placed a $401m (380m) book value on the firm's intangible assets
connected to the golfer's brand, down $21m on the previous year.