updated 06/08/2010 AT 1:00 PM ET
•originally published 06/08/2010 AT 2:15 PM ET
The reality star, 23, filed for legal separation from husband Spencer Pratt at a Santa Monica courthouse on Tuesday, listing irreconcilable differences as the reason for the split.
But Montag did not file divorce papers. According to reports, filing for legal separation means the reality star s earnings will become her separate property beginning on the date of separation, which she lists as June 8. The Hills star’s papers do not list a lawyer.