The boss of Bet365 was paid around £221million during its last financial year, despite the gambling giant reporting a significant loss.
Denise Coates's salary was £7million higher than the previous year, according to Bet365's latest accounts for the year to March 2023.
As founder and joint chief executive of the online gambling firm, Ms Coates will also have received at least £50million worth of dividends.
Bet365 declined to comment.
Ms Coates's pay bump means that her total salary over the past four years surpassed £1billion.
The BBC said Bet365 also paid a total £100million in dividends for the last financial year - a chunk of which would have gone to Ms Coates who owns about 57% of the firm.
Ms Coates founded the Bet365 website in a portable building in a Stoke-on-Trent car park more than 20 years ago. It is now the biggest private sector employer in the city.
She is thought to be one of Britain's richest women and among the best-paid executives in the world.
After training as an accountant, Ms Coates helped build the group into one of the biggest online gambling companies from her father's bookmaking business. Her brother is a co-chief executive.
The UK's flagship share index, the FTSE 100, was up 16-points at 7,710 shortly after opening this morning.
Brent crude oil futures were up 0.72% today, trading at $76.67 per barrel.
Companies reporting today
- B&M European Value Retail - Q3 trading statement