As a result, the presenter is estimated to be worth a whopping £10million, but experts have predicted she could DOUBLE her fortune with her latest interior design venture, to £21m.
The 36 year old also joined forces as the new face for Diet Coke, bagging a reported six figure salary for the role, and most recently it was revealed Holly, 36, and husband Dan Baldwin enjoyed a huge pay day, reportedly paid themselves £1 million from their company Roxy media this year.
So what's the secret to her success?
[Instagram/ Holly Willougby]
Holly Willoughby has been hosting This Morning alongside Phillip Schofield for around eight years.
According to reports, she has been given £200,000 salary increase from bosses, after they realised she was on the same amount for Dancing On Ice – which they have presented together since 2006 – but not for the daily morning show.
"It seemed ridiculous they were going to get paid the same fee for Dancing on Ice but Holly was lagging behind on This Morning," an insider told the Mirror.
"Quite rightly, that has now been rectified and they both earn exactly the same."
Holly is making a move into interior design, setting up business Truly Group Ltd with Dragons Den business mogul, Peter Jones' partner, Tara Capp.
Speaking to FEMAIL, brand expert Phil Pallen has predicted the star could earn at least £10m from this, making her the wealthiest female TV presenter.
This would put her well ahead of Davina McCall, who is currently the wealthiest with an estimated £13m fortune.
Holly's showbiz career began when she was just 14, after being spotted by modelling scouts.
She signed to modelling agency Storm, appearing in teen mags such as Just Seventeen.
She then went on to model lingerie for brands including Pretty Polly and has been the face of make-up brand Rimmel.
Holly's presenting career began on S Club TV and Ministry of Mayhem, for which she won a BAFTA in 2006.
As well as her very lucrative £400,000-a-year This Morning gig, she has fronted a whole host of popular TV shows.
These include Dancing On Ice, which returns in January 2018, and Xtra Factor.
She reportedly earned £400,000 from The Voice.
She also makes appearances on panel show Celebrity Juice with Keith Lemon and Fearne Cotton.
Holly has written a series of children's books with her sister Kelly, L'Etoile, School for Stars.
The first book was published in 2013, and quickly became the UK's highest-selling children's debut of 2013.
Their second book in the series was published on 1st August 2013.
Holly has also launched parenting books of her own including one all about baby weaning.
Production company value
In 2014 her production company Peaches Productions literally tripled its earnings, banking a whopping £1.5 million.
Other profitable ventures
Holly also has endorsement deals with Garnier and Oral-B.
She also has had her own clothing and bedding range with Dunelm.