The youngest members of Forbes' 2024 list of America's richest self-made women are proof of that.

Among the 100 list members, 11 are under the age of 40.

While this number has coincidentally stayed the same over the past years, some of its faces have changed as new women have entered the ranks and others have fallen off. Here are the five richest self-made women under 40 in 2024. At number five, Shuo Wang.

Wang is co-founder and chief revenue officer of HR software firm Deal.

Less than five years after its founding, Deal surpassed $500 million in annual revenue in March.

After moving from China to the U.S. at age 16, Wang reportedly sold scooters at flea markets while in high school.

She went on to study robotics at MIT and co-founded air purification company Ares before Deal. At number four, Taylor Swift.

Music's most powerful star dominated the concert business and became a billionaire in 2023.

Her Ares tour set a record in December as the first ever to gross over $1 billion in ticket sales, according to Polestar.

It's expected to bring in more than $2 billion by the time it wraps later this year. At number three, Whitney Wolfhard.

Wolfhard stepped down as CEO of Bumble in January, almost a decade after founding the female-focused dating app.

Bumble's shares have plummeted nearly 90% since the company started trading in February 2021, when Wolfhard briefly became the country's youngest self-made female billionaire. At number two, Lucy Guo.

Most of her fortune lies in her nearly 6% stake of artificial intelligence firm Scale.ai, which she co-founded with Alexander Wang in 2016.

Guo left Scale in 2018 and now runs Passes, a platform for creators hawking makeup tutorials, relationship advice, and more.

The company raised $40 million in February from investors including Good American's Emma Greed. And at number one, Kylie Jenner.

The youngest Kardashian-launched clothing line, Kai, last fall, then released Sprinter Vodka Soda and a fragrance called Cosmic in March.

Most of her wealth still comes from an estimated 44.1% stake in Kylie Cosmetics, plus cash from selling 51% of the business to French beauty giant Coty in 2020 for $600 million.