£13,233 PER DAY

E.L. JAMES, 53 ESTIMATED WEALTH: £80MILLION HOW SHE MADE IT: FORMER West London housewife Erika Mitchell is now Fifty Shades of rich, thanks to her erotic novels, which have sold more than 100 million copies, as well as spawning the 2015 film starring Dakota Johnson and Jamie Dornan.

Two cinema sequels, Fifty Shades Darker and Fifty Shades Freed, are due to be released.

Her company, Fifty Shades Ltd, made a spanking profit after tax of just under £20 million, taking its assets to £52.5million. Better known under her pen name of E.L. James, Erika took a dividend of £4,830,000 from her company, in the year to the end of September 2015, giving her a daily income of more than £13,200. HOW SHE SPENDS IT: In August she purchased a £5.4 million five-bedroom, seven-bathroom house in the Hollywood Hills. The mother of two teenage boys, she also owns a £2.6million sixbedroom house in Brentford, West London, as well as a £1million, five-bedroom Cornish retreat. She drives a £79,000 Tesla Model S electric car.