Kylie Jenner appears to be ready to celebrate her 18th birthday by taking control of her growing empire.

Reports are the "Keeping Up With The Kardashians" reality TV star has already informed momager Kris Jenner "she is fully ready to take control of her fortune and her career."

According to Radar Online, a source close to the family adds, "She hasn't even been 18 for a full day yet and is already acting like a terror by trying to call all the shots."

The barely legal Jenner already has an estimated net worth of more than $5 million and recently purchased a Calabasas, California mansion to go with several high-priced vehicles and a wardrobe seemingly purchased with an endless budget.

But sources insist Kylie wants more.

"Kylie is demanding that Kris give her access to her entire fortune immediately," said a source, adding that she also wants a full rundown of where all her money is.

Beyond that, sources speculate Kylie may suspect her mom has not been completely honest with her about what she has. She may be going behind her mother's back, questioning her sisters about how much they are paid per episode of their show and how much of a split they are required to share with their mom as manager.

"She is saying that it is her money and she wants all of it now," a source added.

Kylie recently took her mind off her troubles long enough to celebrate her birthday with a lavish bash in West Hollywood, where 25-year-old rapper boyfriend Tyga gifted her with a $320,000 Ferrari 482 Italia and a Hermes Birkin bag.

Recently, the two have been rumored to be considering eloping and moving away from California, with New York City and Europe said to be among their leading potential destinations.