When a parent passes away, one of the most common questions trustees ask is: “When do I have to notify the county about the home?” In most cases, California law requires a Change in Ownership Statement within 150 days of death. California actually has multiple timelines—some with penalties if missed—and they apply even if the property stays in the trust and no sale is planned. In this guide, we break down the 150-day rule, the 90-day rule, and how Proposition 19 fits into the picture so you can protect your family’s property taxes and avoid costly mistakes.