The 28-year-old singer has knocked One Direction off the summit for the first time in three years after amassing a further £53.9 million compared to her £38.1 million worth last year which saw her finish in fourth place in the annual listing.
Adele was helped out somewhat as One Direction's earnings are no longer grouped together following the boy band's decision to take a self-inflicted hiatus.
According to the list, Harry Styles is the 1D star with the highest worth after amassing £37 million, putting him in fifth place, just one place and £1 million behind their former band member Zayn Malik, who quit to form a solo career.
Liam Payne and Niall Horan both have a £34 million worth, putting them in seventh and eighth respectively, while Louis Tomlinson - who has a 10-month-old son Freddie - has £1 million less, leaving him in ninth.
'Harry Potter' star Daniel Radcliffe - who played the titular character in the film franchise - is second on the grid on £74 million, with his co-star Emma Watson (Hermione Granger) in fifth on £35.7 million, and their fellow wizard Rupert Grint (Ron Weasley) in 10th with a £29.3 million worth.
The other star to make up the rich list's top 10 is singing sensation Ed Sheeran, who is a new entry in third with a £45 million fortune, despite him not releasing an album since 'x' in 2014.
Other stars further down the grid include Little Mix at 11, Rita Ora at 21 and former 'Skins' star Jack O'Connell at number 27.
Taylor Swift is at the summit of the International Top Five list with her £192 million fortune, while Princess Charlotte has topped the Billion Dollar Babies list as she is reported to be worth £3.2 billion to the UK economy.
What's more, the publication reports Selena Gomez can earn a massive $550,000 per Instagram post, putting her at the top of their new Insta-preneurs list.
The full list of the 30 Richest Celebrities under 30 appears in this week's heat, on sale now.
heat's Top Ten Richest British Celebrities Under 30:
1. Adele (£92m)
2. Daniel Radcliffe (£74m)
3. Ed Sheeran (£45m) NEW ENTRY
4. Zayn Malik (£38m)
5. Harry Styles (£37m)
6. Emma Watson (£35.7m)
7. Liam Payne (£34m) NEW ENTRY
8. Niall Horan (£34m) NEW ENTRY
9. Louis Tomlinson (£33m) NEW ENTRY
10. Rupert Grint (£29.3m)