The singer has defaulted on her mortgage and reportedly owes $1.6 million on her house, according to TMZ.
The website writes that Wilson has until July 21 to pay off her dues or the house will go up for auction.
Wilson recently made a cameo appearance in Bridesmaids, performing 'Hold On' alongside her fellow Wilson Phillips band members Wendy Wilson and Chynna Phillips.
A representative for the singer had no comment on the news.
Wilson said in December of last year that she continues to struggle to control her weight, stating that she has learned to accept her changing size.
In 2010, Wilson Phillips reunited for a US tour.