The actor, who reprises his role as Craig Owens in this week's Doctor Who, told The Sun that money is not as important to him as it used to be.
Corden said: "Basically, I want to work as hard as I can until Max is three or four and then be able to spend a lot more time with him. To be able to take his summer holidays off and spend all that time with him and Jules is the aim.
"It depends what life you want to lead. I'm sure Simon Cowell couldn't survive on my wage. I think about money a lot less than I used to and I feel lucky for that. Money is only as important as you make it. I've been able to do wonderful things through the success of Gavin & Stacey and stuff. Things that I dreamt about being able to do."
"So to be able to buy him an Audi was just a dream come true. To be able to do things like that is great."
Corden, who releases his autobiography May I Have Your Attention, Please? on September 29, added that he is loving "every minute of being a dad".
"There's no one else in the world that can wake me up at five o'clock in the morning and be forgiven with a smile within 30 seconds," he said.
> James Corden 'has discussed more Gavin & Stacey'
Watch the trailer for this week's Doctor Who below: