Khan claims that when filmmakers come to him with offers he doesn't talk money with them.
"Very few people know about this except the people who work with me. For the last eight or ten years, I don't ask for a fixed fee," Gulf News quoted him as saying at the Dubai International Film Festival.
"I tell them you can rake in all the money by utilising my name and let the film go as big as possible. And when you do make the money out of the film, you decide what you want to give [me]," he said.
The self-made billionaire insists his love for the craft transcends his love for the material world.
"The biggest gift an actor can get is when he can act in front of the world. There's no bigger salary than that," he said. "The only thing that turns me on is work, work and more work," he added.
My life is not an open book
Shah Rukh Khan has the gift of the gab and is known for his wit and humour. He comes across as a "people's actor", shaking a leg with them at almost every event and his fans claim to know SRK inside out, but the superstar thinks otherwise.
"My life is not as open book, the way people consider it. When I come in front of you people, it is mostly work related. I feel that you people belong to the same business as me so the questions that you ask, I usually give a good and detailed answer to that," said SRK here at the unveiling of his official opus "King Khan - The Official Opus of Shah Rukh Khan".
The actor, who has spent more than 23 years in the industry, says his only motto is to entertain the public.
"I have done so many films that it becomes difficult to find something new. I want that if people want to work with me, I should have something new to tell from the work that I have done. I want to continue entertaining people the way I have."
"I want to entertain the kids, the wives... I want to make films through which I can entertain the entire family for a few hours," he said.
The actor has been a hit ever since he made an appearance in the popular TV serial "Fauji" in 1988 and then "Circus". After his debut in Bollywood with "Deewana" in 1992, he never looked back.
Shah Rukh is currently busy promoting his latest film "Don 2: The King Is Back", co-produced by him, Farhan Akhtar and Ritesh Sidhwani.
He is also co-producing "Student Of The Year" with Karan Johar.