By Breaking Celebrity News Staff

Demi Moore and Ashton Kutcher have been separated for more than a year and although neither has yet filed for divorce, they've been privately working towards their financial settlement.

But according to a new report, the former couple may be headed for a public court battle over money.

Lawyers for both are “trying to negotiate a settlement out of court and out of the public eye,” sources have told The New York Post.

However, there are indications that the divorce could become acrimonious because Kutcher – the highest paid actor on TV -- is allegedly unwilling to give his ex a huge payout.

“They still haven’t reached an agreement over money, because Ashton earned substantially more d