The Keeping Up With The Kardashians star told InStyle magazine that she'd paid for everything herself over the past three years.
She said: "My mum cut me off financially three years ago so I pay for everything – my car, my gas and food, as well as my clothes."
Kylie, 17, may be the youngest member of the Kardashian-Jenner clan (not counting the little kids!) but she's definitely no slacker when it comes to business initiative.
She's still too young to legally drink but has already put her name to clothing lines, nail polish, skin product endorsements, hair extensions, a young adult novel and most recently a Topshop collaboration with elder sister Kendall, 19.
The teen's also walked on the catwalk at Fashion Week, starred in every series of Keeping Up With The Kardashians, co-hosted red carpet events and awards ceremonies, and modelled.
She proved she had a rather healthy bank balance earlier this year by splashing out $2.7 million on a five-bedroom home in the same gated community in Calabasas, California as her sisters. It's thought she'll move in when she turns 18 in August.
All you need to know about Kylie Jenner!
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