"Kate and Jamie are definitely going to sign a pre-nup to ensure Kate's money and estate are protected in the event of a divorce," dailystar quoted a source as saying.
"This is something Jamie wants as much as Kate. He feels very strongly that it's her money and she's worked incredibly hard for it in the 23 years since her super-model career kicked off. Jamie knows it doesn't belong to him in any shape or form," the source added.
Sources also say that pre-nup was Hince's suggestion and Moss, 37, agreed to go along with it so that her eight-year-old daughter Lila Grace's future will be protected financially.
"Kate is head-over-heels in love. She believes their marriage is for life, but frankly you never know. She's not a fool and she'll not give up half of a lifetime's work and money for a broken marriage," said a source.
"Jamie hates that Kate pays for so much, but often tells her it's only because she wants to travel the world on yachts and private planes. Jamie wants to be his own man with his own financial future. The pre-nup is right for both of them," the source added.
The couple is due to get married July 1.
