Last year Ant and Dec made £79,000 a day as telly’s biggest double act, raking in £29.48million before tax.
Ant and co-star Declan Donnelly , both 42, are estimated to be worth around £30million each.
And Ant’s wife Lisa, 41, whom he wed in 2006, would be entitled to 50% of the assets in a divorce.
Divorce lawyer Cara Nuttall said: “The starting point will always be a 50:50 division of all assets.
“It is likely her lawyers will argue that due to the length of their relationship that there is no room for negotiation on that.”