Published: Sep 30, 2010 9:53 PM EDT
Updated: Sep 30, 2010 6:53 PM EDT

TALLAHASSEE, Fla. (AP) - A divorced spouse who contributed to mortgage payments and other expenses of a house owned by his or her former mate is entitled to a share of any increase in the home's value while they were married.

That's what the Florida Supreme Court decided Thursday in a Hillsborough County case.

The justices unanimously reversed two lower courts that had denied Katherine Kaaa a share of the amount the home owned by her former husband, Joseph Kaaa, had increased in value due to inflation or market conditions.

The opinion includes step-by-step guidelines on how judges should determine awards for appreciation in such cases.