New accounts filed this week show that Ms Coates was paid £220 million in 2018, as well as half of a £90 million dividend, making her one of the highest paid executives in the world.
The payout beats the £220 million she raked in last year, when she was the UK’s highest paid director.
A regular on rich lists, Ms Coates founded Bet365 in a car park in 2000 and has since grown it into a betting titan.
Alongside her brother and father John and Peter, who are also directors at Bet365, the family boasts an estimated fortune of £5.8 billion, ranking them 21st on the Sunday Times rich list.
Ms Coates, John, Peter and finance director Will Roseff shared a total of £321.6 million last year, the Bet365 figures show.
Total director and manager salaries ballooned from £321.9 million to £448.6 million.
Bet365 posted a 28% rise in pre-tax profit to £660.6 million in the year to March on turnover of £2.9 billion.
The firm also owns Stoke City and the accounts, filed at Companies House, show that the football club, relegated from the Premier League in May, suffered a £21 million loss last year.
